A Collection of Steam Tools

A useful collection of great tools for Steam around the web.

Introduction

This guide will provide a collection of websites that help somehow Steam users.
I'll be separating by categories with a brief description of each one.

Some of the websites bellow will ask you to sign in through Steam. When a website offer this resource, you'll se one of these buttons.
So you don't need to worry, since this button will always redirect you to the official Steam address.

The Best Of

• Augmented Steam[augmentedsteam.com]
  Created by: Tomáš Fedor & Zelgaris
  Steam Group
  Description: Simply the best extension for Steam, you can check all the great features at website.
  
  
• IsThereAnyDeal (ITAD)[isthereanydeal.com]
  Created by: Tomáš Fedor & Zelgaris
  Steam Group
  Description: Compare current games prices for more than 20 stores across several regions as well as various bundles and other special deals. Also with price history, so you can see how often the game goes on sale and what are the historical lowest prices.
  
  
• Steam Database (SteamDB)[steamdb.info]
  Created by: xPaw & Marlamin
  Steam Group
  Description: Database for all applications and packages on Steam, including Sales page for all items on sale across Steam, tools to check Steam Status, Broadcasts, VAC & Game Bans, Concurrent Players, Calculator, Browser extension and a lot more.
  
  
• ArchiSteamFarm (ASF)[github.com]
  Created by: Archi
  Steam Group
  Description: Allows you to farm steam cards and many other great features. Can use multiple steam accounts simultaneously. Doesn't require and doesn't interfere in any way with Steam client.

Achievements & Rankings

• Achievement Stats[www.achievementstats.com]
  Created by: Chrissyx & m u n k y
  SteamGroup
  Description: Ranking of users based on points earned by achievements.
  
  
• AStats[astats.astats.nl]
  Created by: Mytharox
  SteamGroup
  Description: Ranking of users based on achievements, games & country.
  
  
• Completionist[completionist.me]
  Created by: luchaos
  Description: Detailed analytics and data visualization for Steam achievements.
  
  
• Exophase[www.exophase.com]
  Created by: Mike Bendel
  Description: See how you rank up against other trophy and achievement hunters, plus stay updated on the latest lists.
  
  
• Game DB[gamedb.online]
  Created by: ?
  Description: Player Ladders, Game Ladders, Group Ladders, Badge Ladders, Games Database, Player Search.
  
  
• MetaGamerScore[www.metagamerscore.com]
  Created by: Oskar Holmkratz & Linda Holmkratz & Martin Berglund
  Description: It combines the achievement in many platforms to make sure that everything you do in any game counts towards a total, persistent metascore.
  
  
• Steam Hunters[steamhunters.com]
  Created by: Rudey
  Description: Simple leaderboard to achivement hunters.
  
  
• Steam Ladder[steamladder.com]
  Created by: TerryZ
  Description: Nothing difference than the other one (i think).
  
  
• TrueSteam Achievements[truesteamachievements.com]
  Created by: Rich Stone
  Description: Very detailed website.

Bundle

Buy games for low prices and help charities.

• Daily Indie Game[www.dailyindiegame.com]
  Steam Group
  
  
• Fanatical[www.fanatical.com]
  Steam Group
  
  
• Groupees[groupees.com]
  Steam Group
  
  
• Humble Bundle[www.humblebundle.com]
  Steam Group
  
  
• Humble Choice[www.humblebundle.com]
  Steam Group
  
  
• Indie Gala[www.indiegala.com]
  Steam Group
  
  
• WinGameStore[www.wingamestore.com]

Calculator (e-peen)

Oh yes! My Steam worth more than yours, wanker!

• SteamDB Calculator[steamdb.info]
  Created by: xPaw & Marlamin
  Description: This one cointains a total valuer of your account and a total valuer with sales. Also there's a nice pop-up that randomly will show a game that you have to play if you're bored.
  
  
• Steam Calc[steamcalc.de]
  Created by: Thomas Weinmeister
  Description: Check how much you spend on Steam.
  
  
• Steam Gauge[www.mysteamgauge.com]
  Created by: Jon Prusik
  Description: Basically the same as the previous ones. It will show a detailed description of ever game that your own.
  
  
• Steam Wishlist Calculator[www.steamwishlistcalculator.com]
  Created by: The HopelessGamer
  Steam Group
  Description: Steam Wishlist Calculator allows you to calculate the total cost of your Steam wishlist.
  
  
• Wasted Time on Steam[steamtime.info]
  Created by: dedg3
  Description: A tool for easy Steam time calculation.

Compare & Bundle List

• Steam Achievement Hunter[achievements.fensoft.fr]
  Created by: fensoft
  Description: Report of all common achievements to do with friends/other player.
  
  
• Compare 2 Steam[compare2steam.com]
  Created by: Inkvolcano
  Description: The best site compare a list of games with your account so you won't trade a repeat one.
  
  
• Game List Compare Tool[www.thefunkygibbon.net]
  Created by: thefunkygibbon
  Description: A simple copy and paste to check game list.
  
  
• SteamPeek[steampeek.hu]
  Created by: IsThereAnyDeal & Zoltan Wacha
  Description: Find up to 60 similar games for almost any game!
  
  
• Steam Compare[www.nerdchan.net]
  Created by: Fedexx2
  Description: Easy way to compare list of game with another user.
  
  
• Steam Game Compare Tool[compare.tinychan.net]
  Created by: aaaaaaaaa
  
  
• Steam Game Matcher[steam-game-matcher.aeirola.iki.fi]
  Created by: aeirola
  Description: A tool for finding games that you and you friends all own.

Completionist

Wanna complete that game or have a data base of what you are playing?

• Backloggery[www.backloggery.com]
  Created by: ?
  Description: Manage your game collection and your backlog. Tool to Import your Steam games[github.com] made by ToxicFrog.
  
  
• Completionator[www.completionator.com]
  Created by: moho_00
  Steam Group
  Description: Site to tracking your video game collection and the games you've played.
  
  
• GameDeed[gamedeed.com]
  Created by: Jens-Christian Huus
  Steam Group
  Description: A backlog, checklist and database.
  
  
• Grouvee[www.grouvee.com]
  Created by: Peter
  Description: Keep track of your video game backlog. Use the default Played, Playing, Backlog and Wish List shelves created for you, or create your own virtual shelves to categorize your games however you want.
  
  
• How Long To Beat[www.howlongtobeat.com]
  Created by: ?
  Steam Group
  Description: Check how long will take to beat a game.
  
  
• Keep Track of My Games[keeptrackofmygames.com]
  Created by: ?
  Description: Organize your video games, backlog, wishlist, and track upcoming releases in one easy-to-use tool.
  
  
• Steam Backlog[steam-backlog.com]
  Created by: Gohrum
  Description: Steam Backlog provides easier and better way to browse our always growing steam libraries while helping decide what to play next.

Coupon

• Coupon Dumpster[new.steam.nyan.link]
  Created by: Yusyuriv (Site) / InCrt & Biowizard & Xsesis & Shadow_Dragon_SM (Group)
  Description: The best place to donate and request coupons. You need to be part of their group.
  Super organized and friendly people.
  
  
• List of Every Coupon[pastebin.com]
  Created by: Nephrite
  Description: The title says all, is a updated list of every existing coupon.
  
  
• Prepare Your Wallet - Steam Coupons Tool[prepareyourwallet.com]
  Created by: Prepare Your Wallet
  Steam Group
  Description: If your own inventory is bereft of coupons, you can use this tool to check bots' inventory to see what discounts they might be squirreling away.

Extensions

Addons or Extesions is for browsers like Google Chrome, Mozilla Firefox and Opera (<3).
If you're using Opera and find a extension only supported on Chrome, use this extension[addons.opera.com] to be able to install any Chrome's extension.

• Activate on Steam[chrome.google.com] (Chrome & Chromium based)
  Created by: jshackles
  Description: Adds a context menu to activate the selected text on Steam.
  
  
• Ban Checker for Steam[chrome.google.com] (Chrome & Chromium based)
  Created by: Geku
  Description: Automatically check bans of people you recently played with (or your friends).
  
  
• Better Buy Orders[chrome.google.com] (Chrome & Chromium based)
  Created by: Step7750
  Steam Group
  Description: Improves Steam market buy orders (hot-swap view different currencies and extended listings).
  
  
• Browser & Client Skins to Remove the Clutter/Blue from Steam
  Created by: Raydell
  Description: This will apply a custom styles to your browser or client to remove the clutter/blue from Steam website.
  
  
• Cloud Gaming Lister[chrome.google.com] (Chrome & Chromium based)
  Created by: aducad (Emre Sandikci / Demir Yasin Oruc / Arda Fidancı)
  Description: Cloud Gaming Lister is a Chrome extension used for GEFORCE NOW support for Steam games.
  
  
• Community Market Search[lab.nyan.link] (Chrome & Firefox & Opera)
  Created by: Yusyuriv
  Description: Allows you to easily search things on the Community Market with just two clicks.
  
  
• Fair Steam[chrome.google.com] (Chrome & Chromium based)
  Created by: Dbalz3
  Steam Group
  Description: Adds real gameplay video for games on Steam.
  
  
• Gamepass info for Steam[aligueler.com]
  Created by: alike03
  Description: See on Steam Store Page if the game is currently available on Xbox Game Pass.
  
  
• Game Times Chrome & Chromium based[chrome.google.com] & Firefox[addons.mozilla.org]
  Created by: Syphen
  Description: See 'HowLongToBeat' gameplay times within various gaming web stores.
  
  
• Grapher for Steam[chrome.google.com] (Chrome & Chromium based)
  Created by: Smankusors
  Description: A browser extension to graph your steam wallet balance.
  
  
• IsThereAnyDeal Everywhere[everywhere.isthereanydeal.com]
  Created by: Tomáš Fedor & Zelgaris
  Description: Adds a quick price overview for each link to Steam store it can find on a page.
  
  
• ProtonDB for Steam[github.com]
  Created by: Tryton Van Meer
  Description: Shows ratings from protondb.com on Steam.
  
  
• SARA • Steam Account Robotic Assistant[github.com] (Chrome & Chromium based)
  Created by: Pandiora
  Description: Enhancing and automating your Steam Experience with focus on managing multiple Steam-Accounts.
  
  
• Sliwipi[lab.nyan.link] (Chrome & Firefox)
  Created by: Yusyuriv
  Description: A browser extension that makes large Steam game libraries and wishlists fast.
  
  
• Steam Activity Filter Chrome & Chromium based[chrome.google.com] & Opera[addons.opera.com] & Firefox[addons.mozilla.org] & UserScript[raw.githubusercontent.com]
  Created by: ZeroUnderscoreOu
  Steam Group
  Description: Filter for friends' activity in Steam. Allows to load activity for selected days and display needed part of it.
  
  
• Steam Anti-Scam Project[steam-antiscam.eu] (Chrome & Chromium based)
  Created by: Forced2Kill
  Description: The Steam Anti-Scam Project tries to prevent Fraud/"Scamming" on the Platform Steam.
  
  
• Steam Context Menu Chrome & Chromium based[chrome.google.com] & Firefox[addons.mozilla.org]
  Created by: Skylark95
  Description: Search for games on Steam, SteamDB, or IsThereAnyDeal using the context menu.
  
  
• Steam Database Extension[steamdb.info]
  Created by: xPaw & Marlamin
  Description: Adds Steam Database links on various pages in the Steam Community and Store. Also highlights owned and wished products on steamdb.info.
  
  
• Steam item search between friends[chrome.google.com] & in groups[chrome.google.com] (Chrome & Chromium version)
  Createdy by: forever14k
  Description: This extension allows to find items you looking for in all friends & Steam group members inventories on the same time.
  
  
• Steam Market Item Price Tracker[chrome.google.com] (Chrome & Chromium based)
  Created by: ~destructor
  Description: Steam Market Item Price Tracker allows you to track Steam Community Market item buy/sell orders.
  
  
• Steam Market History Helper[chrome.google.com] (Chrome & Chromium based)
  Created by: ~destructor
  Steam Group
  Description: Steam Market History Helper helps you manage your market history on steamcommunity.com.
  
  
• Steam Ninja![chrome.google.com] (Chrome & Chromium based)
  Created by: Beans
  Description: Features for auto-purchasing, popup for badge search and item (backgrounds, emoticons, trading cards) overview including prices.
  
  
• Steam Popularity Filter Chrome & Chromium based[chrome.google.com] & Firefox[addons.mozilla.org]
  Created by: Necroblight
  Description: Gives the ability to filter search results based on popularity of games.

Extensions (Pt. 2)

Part 2 due to the characters limit.

• Search Preview for Steam[chrome.google.com] (Chrome & Chromium based) & Opera[addons.opera.com] & Firefox[addons.mozilla.org]
  Created by: axwalker
  Description: View screenshots for games within the Steam search page. Source code[github.com].
  
  
• Steam Store Tooltip Chrome & Chromium based[chrome.google.com]
  Created by: Gabriel Schulte
  Description: Show Steam games information when hovering the store links.
  
  
• TcNo Steam Card Assistant Chrome & Chromium based[chrome.google.com] & Firefox[addons.mozilla.org]
  Created by: Necroblight
  Description: Extends the Steam Badge crafting system.
  
  
• VacBanChecker[github.com]
  Created by: MrHayato
  Description: A bookmarklet to check for steam vac bans.
  
  
• xgp.community[xgp.community]
  Created by: Zhouzi (Gabin Aureche)
  Description: A browser extension that adds the mention "included / not included with Xbox Game Pass" on Steam's store page.

Extensions (UserScripts)

This require to install the extension Violentmonkey (Best option) for Firefox[addons.mozilla.org] or Chrome[chrome.google.com]. Other options are Tampermonkey[tampermonkey.net] or Greasemonkey[addons.mozilla.org] (Firefox only).

• Better Buy Orders[github.com] (Firefox only - other browsers on the Extension list above)
  Created by: Step7750
  Steam Group
  Description: Improves Steam market buy orders (hot-swap view different currencies and extended listings).
  
  
• Bundle Helper[greasyfork.org]
  Created by: 7-elephant
  Description: Add tools for many bundle sites.
  
  
• Disable Steam Avatar Effects[greasyfork.org]
  Created by: gordonwalkedby
  Description: Hide steam avatars' effects, mini profiles' video background. Make your steam looks more clean.
  
  
• Enhanced Steam Dropdown Mover[greasyfork.org]
  Created by: Revadike
  Description: Moves the Enhanced Steam dropdown into the steam profile dropdown (and simultaneously makes it compatible with custom Steam skins).
  
  
• Fade Owned Items[userstyles.org]
  Created by: vhs
  Description: It fades items on Store that you already have.
  
  
• Flat Steam UI[userstyles.org]
  Created by: creo318
  Steam Group
  Description: Flat, clean and simply Steam Store and Community redesign.
  
  
• Giveaway Helper[github.com]
  Created by: Citrinate
  Description: Enhances Steam Key giveaway sites.
  
  
• Group List Sorter[greasyfork.org]
  Created by: Revadike
  Description: Sort your group list by group name, creation date or total members.
  
  
• Humble Bundle Extra[greasyfork.org]
  Created by: MrMarble
  Description: User script for humble bundle. Adds steam store links to all games and marks already owned games.
  
  
• IsThereCouponForThis[greasyfork.org]
  Created by: Ryzhehvost
  Description: Show coupons available on game steam store page, on wishlist and on widgets embe
  
  
• Removed App/Sub Redirect To SteamDB[greasyfork.org]
  Created by: Revadike
  Description: If the Steam Store App or Sub doesn't exist, is removed or is region-locked, redirect to SteamDB.info instead of store.steampowered.com.
  
  
• ProtonDB Status Badge[greasyfork.org]
  Created by: eggplants
  Description: Add a badge of ProtonDB Status to Steam store page with shields.io.
  
  
• SteamPTP[github.com]
  Created by: octoman90
  Description: Displays total playtime and playtime percentage for each game in Steam profiles.
  
  
• SteamTracker[malikaqayum.github.io]
  Created by: MalikAQayum
  Description: SteamTracker Userscript, adds features to the steam profile / community app hub / steam store page etc.
  
  
• Steam - Default language[greasyfork.org]
  Created by: Revadike
  Description: Make sure you always see the steam page in your preferred language. You can configure the language in the language variable.
  
  
• Steam Activation Button[github.com]
  Created by: DEMENT0R
  Description: Adds steam activation button on sites like Steam Gifts, Reddit and others.
  
  
• Steam Archive Menu[greasyfork.org]
  Created by: kau
  Description: This script adds a new drop-down menu on all Steam Community pages to let you archive pages to the Wayback Machine with just one click.
  
  
• Steam Auto Mass Craft Cards Badges in Bulk[greasyfork.org]
  Created by: 黑山東雲光圈研究所
  Description: It will automatically use up your gamecard sets for crafting badges. You can control the which card sets and how many sets to craft by using it.
  
  
• Steam Badge Assistant[github.com]
  Created by: notderw
  Description: Allows you to buy all Steam trading cards for a badge with a click or two.
  
  
• Steam Badges Info[github.com]
  Created by: MrMarble
  Description: Shows number of badges ready to craft in current page.
  
  
• Steam BBCodes[github.com]
  Created by: ZeroUnderscoreOu
  Description: Userscript that injects a simple BBCodes editor into Steam site's interface. Depends on some of Steam's scripts.
  
  
• Steam Booster Opener[gist.github.com]
  Created by: madjoki
  Description: Mass open booster packs from your Steam's Inventory.
  
  
• Steam Bundle Sites Extension[github.com]
  Created by: clancy-chao
  Description: A simple extension for bundles sites selling Steam games.
  
  
• Steam Bulk Card Buyer[bitbucket.org]
  Created by: Doctor_McKay
  Description: Adds a button to your Steam badge pages allowing you to buy all the cards you need to finish a badge from the Steam Market at once.
  
  
• Steam Cards[github.com]
  Created by: ZeroUnderscoreOu
  Description: Simple userscript that makes navigating on Steam Market bit easier.
  
  
• Steam Chinese Checker[github.com]
  Created by: sffxzzp
  Description: Displays if a game has 3rd party Chinese patch.
  
  
• Steam Community Profile SteamID Viewer[github.com]
  Created by: DoctorMcKay
  Description: Quick and easy SteamID viewing from Steam Community profiles.
  
  
• Steam Curator[malikaqayum.github.io] (Chrome & Chromium based)
  Created by: MalikAQayum
  Description: Provides some data/stats, about your curator, on it is own "livestat"page.
  
  
• Steam Custom Tag[github.com]
  Created by: Rexedead
  Description: Organize your wishlist collection by adding custom tag.
  
  
• Steam Discovery Queue Auto-Skipper[github.com]
  Created by: PotcFdk
  Description: Auto-clicks the "Next in Queue" button in Steam Discovery Queues.
  
  
• Steam Economy Enhancer[github.com]
  Created by: Nuklon
  Description: Enhances the Steam Inventory and Steam Market.

Extensions (UserScripts) (Pt. 2)

Part 2 due to the characters limit.

• Steam Error Widget Helper[greasyfork.org]
  Created by: Ryzhehvost
  Description: For error widgets shows steamdb.info link and game name (if possible).
  
  
• Steam Game Server Account Management Enhancer[github.com]
  Created by: DoctorMcKay
  Description: Enhances the "Steam Game Server Account Management" page.
  
  
• Steam Key Ninjas[github.com]
  Created by: mahadi22
  Description: It will automatically redeem your steam key.
  
  
• Steam Link Filter Bypasser[github.com]
  Created by: ZeroUnderscoreOu
  Description: Bypasser of Steam's link filter.
  
  
• Steam Profile Showcase Organizer[gist.github.com]
  Created by: sergiosusa
  Description: Add an option to organize the showcases movind up and down.
  
  
• Steam Store - Removed App/Sub Redirect To SteamDB[greasyfork.org]
  Created by: Revadike
  Description: If the Steam Store app/sub doesn't exist, is removed or is region-locked, redirect to SteamDB instead of Steam Store.
  
  
• Steam Store - Show Entire Wishlist[greasyfork.org]
  Created by: Revadike
  Description: Shows all hidden wishlisted apps.
  
  
• Steam Wishlist Price Filter[xiyng.github.io]
  Created by: Xiyng
  Description: Userscript that adds the option to filter games by price or show only discounted items in your Steam wishlist.
  
  
• Steam Wishlist Sorter[github.com]
  Created by: Anxeal
  Description: Sort your Steam wishlist by comparing two games at a time
  
  
• When you can create Steam booster pack[greasyfork.org]
  Created by: 黑山東雲光圈研究所
  Description: Show the time when you can create Steam booster pack at creator page.
  
  
• Wishlist Exporter[greasyfork.org]
  Created by: Revadike
  Description: Export your wishlist in a text list.

Forum / SubReddit / Wikia

Wikia

• List of DRM-free games on Steam[steam.wikia.com]
  Created by: ?
  
  
• PCGamingWiki[pcgamingwiki.com]
  Created by: Andytizer & Pridit & soeb
  Steam Group
  Description: Informations on how to get older games working.
  
  
• Steam Trading Cards Wiki[steamtradingcards.wikia.com]
  Created by: ?

SubReddit

• /r/FreeGameFindings
  
  
• /r/FreeGamesOnSteam
  
  
• /r/Steam
  
  
• /r/SteamGrid
  
  
• /r/SteamTradingCards

Giveaways

• Steam Gifts[www.steamgifts.com]
  Created by: cg
  Steam Group
  Description: The biggest unofficial community about Steam and also the biggest giveaway website for Steam games only.

ID Finder

Every website do the exacly same thing, will search for the SteamID, SteamID64 or Custom URL from the players.

• Steam ID Converter[steamid.co]
  Created by: Arne
  
  
• Steam ID Finder[steamidfinder.com]
  Created by: Arne
  
  
• Steam ID Finder[avi12.com]
  Created by: avi12
  
  
• Steam I/O[steamid.io]
  Created by: 8088

Linux

Be Free, Be LINUX!

• GameHub - https :// tkashkin .tk/projects/gamehub/ (remove the spaces from the url, domain is in the Steam blacklist for some reason)
  Created by: tkashkin
  Description: Unified library for all your games.
  
  
• LAN-Cache[github.com]
  Created by: bntjah
  Description: Improve download speeds and reduce strain on your Internet connection at LAN parties.
  
  
• Linux Steam Integration[github.com]
  Createdy by: Solus Project
  Description: A helper shim to enable better Steam integration on Linux systems.
  
  
• Luxtorpeda[github.com]
  Created by: luxtorpeda-dev
  Description: Steam Play compatibility tool to run games using native Linux engines.
  
  
• ProtonDB[www.protondb.com]
  Created by: bdefore
  Description: Gather reports from other gamers as they test games with Proton on Linux and provide aggregate scores of how well games perform.
  
  
• ProtonDB to Steam Library[github.com]
  Created by: CorruptComputer
  Description: Pull ratings from ProtonDB and import them into your Steam library as tags.
  
  
• Protontricks[github.com]
  Created by: Matoking
  Description: A simple wrapper that does winetricks things for Proton enabled games, requires Winetricks.
  
  
• Steamtricks[github.com]
  Created by: boombatower
  Description: steamtricks provides workarounds for problems with Steam on Linux.
  
  
• SteamOS Tools[github.com]
  Created by: mdeguzis
  Description: Tools, scripts, and hosted packages for SteamOS.
  
  
• SteamOS Ubuntu[github.com]
  Created by: ShadowApex
  Description: Scripts to make an existing Ubuntu installation like SteamOS.
  
  
• Steam On FreeBSD[github.com]
  Created by: SteamOnFreeBSD
  Description: Script to run Steam Client on FreeBSD.
  
  
• Steam on Linux[github.com]
  Created by: cemasma
  Description: Shows Linux supported games in your Steam library.
  
  
• Wal Steam[github.com]
  Created by: kotajacob
  Description: A little script that themes the colours for Metro for steam from wal or wpg.
  
  
• wineCheck[github.com]
  Created by: Elmapul
  Description: Verify if the game from the steam store runs on linux via wine.

Microsoft Store (UWP)

Aplications for Windows 10.

• Steamflix[www.microsoft.com]
  Created by: Edgars Šults
  Description: Watch Steam broadcasts of your recently played and other popular games.

Mobile

Applications to use on your mobile. Remember, you can find the official Steam app for Android, iOS and Windows Phone.

Android

• Badger for Steam[play.google.com]
  Created by: Douglas Maitelli
  Description: This app allows you to check your Steam profile level, badges, progress.
  
  
• Best App Sale[play.google.com]
  Created by: BiHSnow
  Description: All the sales of apps & games for the sales of the Steam store.
  
  
• Better Steam - Better Browsing Experience on Steam[play.google.com]
  Created by: C H Yeung
  Description: View the latest and most popular games on Steam.
  
  
• Ice Client : Steam™ Trading[play.google.com]
  Created by: aegamesi
  Description: Ice is a native Android app that functions as a client for Valve™'s Steam™ network -- enabling you to chat and trade on the go. Use for your own risk to activate keys and etc, I never tested!
  
  
• Idle Daddy - Game Idler/Card Farmer for Steam™[play.google.com]
  Created by: Steev's apps
  Description: Idle Daddy lets you easily unlock your Steam™ Trading Cards using your mobile device.
  
  
• Server Status Info[play.google.com]
  Created by: HelloWorldError
  Description: This software is simple and easy to use to monitoring the status of servers.
  
  
• Steam Broadcast Viewer[play.google.com]
  Created by: Appstronaut Studios
  Description: Watch games live and view Steam broadcasts with this easy to use live stream viewer for Steam tv.
  
  
• Steam Materialized: REBORN[forum.xda-developers.com]
  Created by: FaserF
  Description: A modified version of the Steam app.
  
  
• Steam Shuffle[play.google.com]
  Created by: luckycactus
  Description: Android app to help you choose a game from your Steam library to play.
  
  
• Tenacity - Steam Achievements[play.google.com]
  Created by: Zoot apps
  Description: Steam app dedicated for Achievements.
  
  
• Tracker for Steam Achievements[play.google.com]
  Created by: Kalaiselvam G
  Description: This app will help you track all your Steam achievements.
  
  
• Widget For Steam[play.google.com]
  Created by: BiHSnow
  Description: It allows users to quickly get info about latest games, offers and friend statuses.

Windows Phone

• Unofficial Steam Authenticator[www.microsoft.com]
  Created by: Thomas Cheyney
  Description: Mobile authenticator for logging in and trading on steam.

Mobile Authenticator

I do NOT recommend the use of any software that "bypass" the Mobile Authenticator, since the whole purpose of the security is to NO ONE besides you can get access to your real phone and by using an software to get the codes goes against this purpose of security that Valve implemented.
Even if I'm not recommending the use of it, the softwares below works like they say and has no virus or anything on it.

• Steam Desktop Authenticator[github.com]
  Created by: Jessecar96
  Description: Desktop implementation of Steam's mobile authenticator app.
  
  
• WinAuth[winauth.github.io]
  Created by: Colin Mackie
  Description: Portable and open-source authenticator.

Guide:

• Mobile Authentication, Escrow, and How it affects
  Created by: Sudden
  Description: How the Mobile Authenticator affects the Trading System.
  
  
• https://steampls.com/
  Created by: Jesse Cardone & Josh Coffey (Creators of Scrap.TF & SDA - the software in this section).
  Description: A step-by-step guide that will walk you through the entire process of setting up a Steam authenticator.

Play A Game

Bored? Don't know what game to play? Why did you bought so many games on Sale? You can use one of those websites to choose randomly a game to play from your library.

There's even a official "tool" from Valve, just click here and you'll be redirect to a random game.

• Pick A Game[pickaga.me]
  Created by: Smaczny & Only & Julian
  
  
• Play A Game[playagame.josephtran.io]
  Created by: josephtran
  
  
• Random Steam Game Chooser[servc.eu]
  Created by: Ben Blain
  
  
• Steam Advisor[steamadvisor.com]
  Created by: Pie King One & Not Jeff Goldblum
  
  
• Steam Completionist[www.steamcompletionist.net]
  Created by: Bio2hazard
  
  
• Steam Game Gauntlet[sgg.oitc.ch]
  Created by: leinstay
  
  
• TheWheelhaus[www.thewheelhaus.com]
  Created by: f00d

Sales

Sites that has a list of games on Sale.

• Bundled In[bundled.in]
  Created by: BigBlueHat
  Steam Group
  
  
• Cheap Shark[www.cheapshark.com]
  Created by: ArmoredCavalry
  Steam Group
  
  
• Game Bundles
  
  
• Game Deals
  Created by: Don_Quijoder
  
  
• Steamgifts Tools Deals[www.sgtools.info]
  Created by: knsys
  
  
• Steam DB Sales[steamdb.info]
  Created by: xPaw & Marlamin
  
  
• Steam Prices[www.steamprices.com]
  Created by: ?

Security

• Steam Rep[steamrep.com]
  Created by: Ðiego™
  Description: A place where you can report a bad user so he can stay with a bad reputation on the site.
  
  
• VAC Banned[vacbanned.com]
  Created by: Surian & AnAkIn
  Description: VACBanned check if a SteamID is VAC banned or not, if is banned and not on the list, it will be automatically added.

Servers / Scripts

• Hidden Gems[github.com]
  Created by: woctezuma
  Description: Ranking of Steam games to favor "hidden gems".
  
  
• SteamAuth[github.com]
  Created by: geel9
  Description: A C# library that provides vital Steam Mobile Authenticator functionality.
  
  
• steamClearCache[github.com]
  Created by: Glaived
  Description: A simple program that will flush the Steam cache before launching Steam Client.
  
  
• Steam Achievement Lister[github.com]
  Created by: Krakob
  Description: A Python script who converts your achievement progress to the Google Tasks list.
  
  
• Steam Activations Status[github.com]
  Created by: Revadike
  Description: Post a summary of new activated games to your Steam Friends Activity every x hours.
  
  
• Steam Comments Cleaner[bitbucket.org]
  Created by: Justman
  Description: This JS code deletes all deletable comments posted from this account.
  
  
• Steam Headers Downloader[github.com]
  Created by: dn0z
  Description: A script to download Steam header images.
  
  
• Steam Helper[github.com]
  Created by: BWBellairs
  Description: Grants you better control of your Steam Game Updates
  
  
• Steam Screenshot Backup Tool[github.com]
  Created by: Salies
  Description: A backup tool for Steam screenshots.
  
  
• Steam Screenshot Server[github.com]
  Created by: zorchenhimer
  Description: A simple little server to host screenshots taken from steam games.

Node.js

• Node Steam Guide (Andrew's Guide to Steam Bots)[github.com]
  Created by: andrewda
  Description: A guide to creating Steam bots and websites using Node.js
  
  
• Node Steam Chat Bot[github.com]
  Created by: Efreak
  
  
• Steam Free Packages[github.com]
  Created by: Revadike
  Description: Application used to periodically request free packages on steam to be added to your account (50 per 30 mins).
  
  
• Steam for Node[github.com]
  Created by: seishun
  Description: It lets you interface with Steam without running an actual Steam client.
  
  
• Steam Trading[github.com]
  Created by: seishun
  
  
• Steam WebAPI[github.com]
  Created by: jonbo

Signatures

To use on forums or similar. I don't think this category need description of every website

• Steam Forum Signature[alabasterslim.com]
  Created by: AlabasterSlim
  
  
• Steam Profile Signature Badge[steamprofile.com]
  Created by: PCGamesN
  
  
• Steam Signature Maker[steamsigmaker.de]
  Created by: Coolinger
  
  
• Steam Signature Generator[steamsig.drakemain.com]
  Created by: drakemain
  Description: Creates PNG images from Steam profiles.

Skins

• Compact Steam Chat[github.com]
  Created by: JohnChristmann
  Description: A true compact mode for Steam's new chat interface.
  
  
• Metro[boneyardbrew.deviantart.com]
  Created by: Smash
  Steam Group
  
  
• Metro skin for new Steam chat and friends UI[github.com]
  Created by: RoseTheFlower
  PS: It requires Metro for Steam skin.
  
  
• PenginUI[github.com]
  Created by: KodoPengin
  
  
• Steam Chat Skinning - steamchatskinning . tk (remove spaces)
  Created by: LaserFlash (Bryn Bennett)
  Description: Customisable skins for the steam chat user interface
  
  
• Steam Dark Mode[github.com]
  Created by: AikoMidori
  
  
• SteamUI OldGlory[github.com]
  Created by: Jonius7
  Description: A set of tweaks to the Steam Library UI, and also a reference, so you can learn to make your own tweaks.
  
  
• UPMetroSkin[github.com]
  Created by: redsigma
  Description: This unofficial patch for Metro for Steam skin fixes bugs with current version of the skin, implements newly added Steam client features and adds optional ones for unhindered and customized design.

Status

Is Steam down? Is Steam down? Is Steam down? Is Steam down? Is Steam down?

• Is Steam Down[issteamdown.com]
  Created by: ?
  
  
• Steam Services Status[steamstat.us]
  Created by: xPaw

Statistics

• PlayTracker Insight[playtracker.net]
  Created by: Marijan
  Description: View stats and graphs on Steam games. Find out how many people own a game, how many are actively playing it, how it has fared over the years, and more.
  
  
• Steam Charts[steamcharts.com]
  Created by: james4k
  Description: Measure the trends of games on Steam.
  
  
• Steam Spy[steamspy.com]
  Created by: Sergey Galyonkin
  Description: Gathers all the information about Steam games.

Store

Only official resellers.

• Amazon[www.amazon.com]
  
  
• Chrono[chrono.gg]
  
  
• DLGamer[www.dlgamer.com]
  
  
• Fanatical[www.fanatical.com]
  Steam Group
  
  
• GameBillet[www.gamebillet.com]
  
  
• GamersGate[www.gamersgate.com]
  
  
• Green Man Gaming[www.greenmangaming.com]
  Steam Group
  
  
• Humble Store[www.humblebundle.com]
  SteamGroup
  
  
• Nuuvem[www.nuuvem.com]
  
  
• SilaGames[store.silagames.com]
  
  
• Voidu[www.voidu.com]
  
  
• WinGameStore[www.wingamestore.com]

Softwares

• Achievement Watcher[github.com]
  Created by: xan105
  Description: A sexy achievement file parser with real-time notification.
  
  
• bnetlauncher[madalien.com]
  Created by: dafzor
  Description: Launcher utility to help start battle.net games with the steam overlay.
  
  
• Borderless Gaming[github.com] or Steam Store version
  Created by: Codeusa
  Steam Group
  Description: Play your favorite games in a borderless window; no more time consuming alt-tabs.
  
  
• Categories Backup Tool[github.com]
  Created by: DanielZa2
  Description: Backup Steam categories.
  
  
• Card Idle Remastered[github.com]
  Created by: AlexanderSharykin
  Description: A Windows application for farming cards. Based on Idle Master (by jshackles).
  
  
• ChatLoggerJS[github.com]
  Created by: MitchDizzle
  Description: A Steam chat logger which will store logs of all chats under your Steam account.
  
  
• ChatLogger[github.com]
  Created by: sp0ok3r
  Description: ChatLogger is a simple Steam Tool, written in C# for the purpose of save all user/friends messages to a file.
  
  
• Compactor[github.com]
  Created by: Freaky
  Description: A friendly user interface to Windows 10 filesystem compression.
  
  
• CompletedGamesList[github.com]
  Created by: Rallymen007
  Description: A tool to generate a list of completed games for use in Steam descriptions.
  
  
• Depot Downloader[github.com]
  Created by: SteamRE
  Description: Steam depot downloader utilizing the SteamKit2 library.
  
  
• Depressurizer[github.com] / Theo47 version outdated[github.com] / Original version (no longer receive updates)[github.com]
  Created by: mvegter / Theo47 (outdated version) / rallion (original version)
  Steam Group
  Description: Easily manage Steam game categories.
  
  
• GKeyBank
  Created by: Alfred Wallace
  Description: Tool to manage collections of steam keys/link.
  
  
• Global SteamController[alia5.github.io]
  Created by: Peter Repukat
  Description: Tool for using the SteamController as systemwide XInput controller alongside a global overlay.
  
  
• GameSave Manager[www.gamesave-manager.com]
  Created by: InsaneMatt
  SteamGroup
  Description: Back up & restore game saves.
  
  
• GOGWrapper[github.com]
  Created by: tkashkin
  Description: Launch GOG games with GOG Galaxy using shortcuts and add shortcuts for GOG games into Steam Library.
  
  
• HourBoostr[github.com]
  Created by: Ezzpify
  Description: This will allow you to boost the hours played of multiple Steam games on multiple accounts at the same time, without even having steam open!.
  
  
• Idle Master Extended[github.com]
  Created by: JonasNilson
  Description: Get your Steam Trading Cards the Fast Way (Fast Mode Extension).
  
  
• LauncherGen[github.com]
  Created by: bmcclure
  Description: Create beautifully-simple .exe launchers for almost any game to make it work well with Steam.
  
  
• Ludusavi[github.com]
  Created by: mtkennerly
  Description: Ludusavi is a tool for backing up your PC video game save data, written in Rust. It is cross-platform and supports multiple game stores.
  
  
• Mercury[github.com]
  Created by: sp0ok3r
  Description: Mercury is a Ultimate Steam Tool, written in C# for the purpose of interacting with general steam stuff.
  
  
• OSOL[github.com]
  Created by: WombatFromHell
  Description: An executable wrapper for Steam to make third-party launchers more convenient to use with a Steam Controller.
  
  
• Playnite[playnite.link]
  Created by: Josef Nemec
  Description: Open source video game library manager and launcher with support for 3rd party libraries like Steam, GOG and Origin, providing one unified interface for your games.
  
  
• Punk[github.com]
  Created by: scholtzm
  Description: Alternative cross-platform Steam client for desktop.
  
  
• Redeem Steam Key[github.com]
  Created by: yotamHak (Lynx)
  Description: Auto register a steam key and send the result to your desired Discord channel using Discord WebHook.
  
  
• Remote Play Detached (RPD)[github.com]
  Created by: smaTc
  Description: A simple launcher that is able to launch any external game or application with Steam Remote Play Together Support (Steam Overlay works as soon as the Fullscreen is available).
  
  
• SAM - Steam Account Manager[github.com]
  Created by: rex706
  Description: Easily switch between steam accounts.
  
  
• SCOPHE - Steam COpy Paste History Exporter[dreamspace-president.com]
  Created by: Dreamspace President
  Description: Exports your "Purchase History" and "Licenses and product key activations" as CSV files, also calculates the amount of money you have actually spent on Steam.
  
  
• Screenhive[screenhive.net]
  Created by: Brian Mock
  Description: Screenhive is an organizer for Steam PNG screenshot folders, available for Windows and Mac.
  
  
• Screenshot Tools[github.com]
  Created by: LucasOe
  Description: A small tool to make uploading screenshots to Steam easier.
  
  
• SlaloM - Steam launcher and library organizer Messiah[gamelibrarymanager.com]
  Created by: Dreamspace President
  Description: One frontend for all game clients (and manually installed games) with special Steam support. Rename games, show screenshots immediately on game selection (incl. fullscreen&slideshow), browse games by screenshot gallery, create/group/assign TAGS (filtering and/or/not), can automatically add games based on root folders you define (Unique feature!), filter by app type (DLC, game, ..., owned, installed, ...), text filter (and/not), 30+ optional columns, 4 level sort (e.g. first by drive, then by installation size, then by name or purchase date or even random), filter by Steam store tags (e.g. "Multi-player"), can take screenshots in some cases where Steam doesn't, review system, etc.

Softwares (Pt. 2)

Part 2 due to the characters limit.

• SRC Repair[github.com]
  Created by: xvitaly
  Description: Open source tool that can be used for tuning and cleaning up Steam and Source engine games.
  
  
• StarCategorizer[github.com]
  Created by: Mastercorp
  Description: Autocategorizes your games in your Steam library.
  
  
• SteamCompanion[github.com]
  Created by: Knudow
  SteamGroup
  Description: Do you have hundreds of games and you don't know what half of them even look like? SteamCompanion can help you.
  
  
• SteamEdit[steamedit.tg-software.com]
  Created by: Tim Green
  Description: SteamEdit is a small tool for editing some information about your game collection in Steam. You can only change information stored locally – changes you make will not be visible elsewhere.
  
  
• SteamFlix[dshenkle.github.io]
  Created by: dshenkle
  Description: A launcher for steam big picture users that brings up Netflix in full screen mode.
  
  
• SteamGameLauncher[github.com]
  Created by: Gabisonfire
  Description: Creates a launch pad for your installed games.
  
  
• SteamGrid[github.com]
  Created by: boppreh
  Description: SteamGrid is a small standalone program to enhance Steam's grid view and Big Picture.
  
  
• SteamRoller / Steam Quick Launcher[github.com]
  Created by: CyrisXD
  Description: Quick Launch for your Steam library.
  
  
• SteamServerBrowser[github.com]
  Created by: PredatH0r
  Description: Browse game servers and details for games using Valve's master servers.
  
  
• SteamShortcutCreator[github.com]
  Created by: Revadike
  Description: Create shortcuts for your Steam games.
  
  
• SteamShutdown[github.com]
  Created by: akorb
  Description: Automatic shutdown after Steam downloads have finished.
  
  
• SteaScree[github.com]
  Created by: Foyl
  Description: Steam Cloud Screenshot Uploader.
  
  
• Steam Acolyte[github.com]
  Created by: coldfix
  Description: Steam account switcher - lightweight program to switch between steam accounts without having to reenter password/2FA.
  
  
• Steam Bulk Activator[github.com]
  Created by: Ezzpify
  Description: Activates multiple steam keys at once.
  
  
• Steam Account Switcher[danielchalmers.github.io]
  Created by: danielchalmers
  Description: An easy interface for quickly switching between multiple Steam accounts.
  
  
• Steam Achievement Notifier[github.com]
  Created by: ?
  Description: Steam Achievement Notifier is a Powershell application that shows a Windows 10 Toast Notification when you unlock any Steam Achievement.
  
  
• Steam Bulk Key Activator[github.com]
  Created by: colingg
  Description: Activate more than one key at once.
  
  
• Steam Chat Bot[github.com]
  Created by: Efreak & dragonbanshee
  Description: A simplified interface for a Steam chat bot. Node version can be found in the Servers / Scripts section.
  
  
• Steam Cleaner[github.com]
  Created by: Codeusa
  Description: A PC utility for restoring disk space from various game clients like Origin, Steam, Uplay, Battle.net, GoG and Nexon.
  
  
• Steam Cloud File Manager Lite[github.com]
  Created by: GMMan
  Description: This program allow you to list files stored in Steam Cloud, and to download and delete them.
  
  
• Steam Download Watcher[bitbucket.org]
  Created by: HellGate
  Description: This tool will observe the Steam downloads and detect and execute an action, you can select, when all downloads are finished.
  
  
• Steam Event Notification Blocker[github.com]
  Created by: nandee95
  Description: This small app blocks Steam's annoying event notifications.
  
  
• Steam Friends Tagger[github.com]
  Created by: lucianopeixoto
  Description: A simple tool to manually tag steam profiles on your screenshots.
  
  
• Steam Game Installer[github.com]
  Created by: linspatz
  Description: A macro program that allows you to install all your games.
  
  
• SteamGridDB Manager[www.steamgriddb.com]
  Created by: SteamGridDB
  Description: SteamGridDB Manager automatically finds games from launchers on your system and imports them into your Steam library with a click of a button.
  
  
• Steam Invite Spam Filter[github.com]
  Created by: jshackles
  Steam Group
  Description: A spam filter for your Steam community invites.
  
  
• Steam Key Manager[github.com]
  Created by: l19980623
  Description: Simple GUI tool that helps organize your Steam keys.
  
  
• Steam Manifest Creator[github.com]
  Created by: Eperty123
  Description: Stop Steam from re-downloading your games.
  
  
• Steam Market Thingy[github.com]
  Created by: sDoddler
  Description: This program was created to help manage and view Steam Inventories.
  
  
• Steam Metadata Editor[github.com]
  Created by: tralph3
  Description: An easy to use GUI that edits the metadata of your Steam Apps.
  
  
• Steam Notifications Tray App[github.com]
  Created by: GMMan
  Description: This program displays your Steam notifications count in your notifications area.
  
  
• Steam Notifier[github.com]
  Created by: Avinch
  Description: Lightweight background program to notify you when Steam has started downloading something.
  
  
• Steam ROM Manager[github.com]
  Created by: FrogTheFrog
  Description: An app for managing ROMs in Steam.
  
  
• Steam Scanner[github.com]
  Created by: nj-neer
  Description: Get all you games on Steam! Steam Scanner run as a background process, grab games from others launchers and add them to your Steam library.
  
  
• Steam Shutdown[github.com]
  Created by: benjibobs
  Description: A simple and lightweight program that will shutdown your PC after Steam has finished all of its downloads.

Softwares (Pt. 3)

Part 3 due to the characters limit.

• Steam Tools NG[github.com]
  Created by: ShyPixie
  Description: Some tools to use to farm cards and others to related steam websites.
  
  
• Steam Trader Tools[github.com]
  Created by: Matthieu42
  Description: Manage your spare keys, you can easily manage multiple games with their keys associated, set differents status, get information about games and more.
  
  
• UWPHook[brianlima.github.io]
  Created by: brianlima
  Description: Add Windows Store games and apps as non-Steam games on Steam with a single click.
  
  
• Vapour[github.com]
  Created by: Daniel-Griffiths
  Description: An alternative open source Steam client.
  
  
• Vitrine[github.com]
  Created by: paul-roman
  Description: Centralize all of your games within a simple interface.
  
  
• Win10 FPS Fix for Steam[github.com]
  Created by: lightfork
  Description: Users experiencing low FPS or FPS loss after upgrading to Windows 10 may resolve the issue by disabling the Xbox DVR feature.
  
  
• Windowless Executable[github.com]
  Created by: BytewaveMLP
  Steam Group
  Description: A Win32 executable that does nothing. No windows, no operations, nothing. Just perpetually sleeps.

Move Games Installation:

Steam itself now has a official option in the Client, but these tools are still useful with different features.
• Game Pipe[github.com]
  Created by: DjScribbles
  Description: Automates the movement of Steam games from drive to drive or pc to pc.
  
  
• Steam Apps Manager[github.com]
  Created by: danielchalmers
  Description: Windows software to move Steam apps between disks.
  
  
• Steam Library Explorer[github.com]
  Created by: rpaquay
  Description: Explorer for your Steam game libraries.
  
  
• Steam Library Manager[github.com]
  Created by: RevoLand
  Description: SLM is a tool created to help you with managing Steam libraries. SLM lets you easily copy, move or backup your games between Steam and SLM (backup) libraries.
  
  
• Steam Tunnel[github.com]
  Createdy by: rittbys
  Description: Steam Tunnel is a real steam game mover, symlinks are not used.
  
  
• Steam Mover[www.traynier.com]
  Created by: traynier
  Description: Move your games to another partition (Windows only).
  
  
• Virtual Game Shelf[github.com]
  Created by: Stevoisiak
  Description: Virtual Game Shelf is a desktop Java application to organize your game library in a single convenient location.

Trades

• ASF STM[asf.justarchi.net]
  Created by: Archi
  SteamGroup
  Description: Useful list for trading cards. Used as a public service for both ASF[github.com] users that make use of MatchActively, as well as ASF and non-ASF users for manual matching.
  
  
• Barter - Game Trading Made Easy[barter.vg]
  Created by: BarterVG
  Description: You wanna trade or make a list of all your leftover games? This website will help you.
  
  
• Dispenser[dispenser.tf]
  Created by: J oto
  SteamGroup
  Description: A safe place to trade TF2 items for games.
  
  
• Lestrade's[lestrades.com]
  Created by: Nao & devotee
  SteamGroup
  Description: This club allows you to acquire and trade digital game keys, such as bundle duplicates, with other users.
  
  
• Marketplace[marketplace.tf]
  Created by: Jesse Cardone & Josh Coffey
  SteamGroup
  Description: Site that sell TF2 items. Accept Credit Card, Bitcoin or Paypal.
  
  
• ScrapTF[scrap.tf]
  Created by: Jesse Cardone & Josh Coffey
  Description: Another place to trade TF2 items.
  
  
• Steam Game Swap
  Created by: blueshiftlabs
  Description: The biggest Reddit group for trades.
  
  
• SteamTrade Matcher[www.steamtradematcher.com]
  Created by: Robou
  Description: Easy tool to trade cards with other users.
  
  
• Steam Trades[www.steamgifts.com]
  Created by: cg
  Description: One of the biggest trade place for games.

Trading Cards / Emoticons / Backgrounds

• Steam AP Background Cropper[steam.design]
  Created by: TrueCarry
  Description: Crop background to do montage with showcases.
  
  
• Steam Backgrounds[steambackgrounds.com]
  Created by: ?
  Description: Show all Steam backgrounds.
  
  
• Steam Card Exchange[steam.cards]
  Created by: GermanDarkness & Chris Kaiser
  SteamGroup
  Description: Awesome site to trade cards with bots and check every collection of badges.
  
  
• Steam Tools[steam.tools]
  Created by: Ehsan Kia
  Description: A awesome collection of tools for Cards, Emoticons, Backgrounds. Includes a Mosaticon, Games Filter and Item Value Sorter too.
  
  
  Emoticons Tools:
  
  
• Steam Emoticon Art Editor[a9.io]
  Created by: Max Krieger
  Description: Another simple tool to do your art with emoticons.
  
  
• Steam Emoticon Converter[schlarp.com]
  Created by: Chaz Schlarp
  Description: Convert images into emoticons.
  
  
• Text Pastebin[paste.mattie.net]
  Created by: Mattie
  Description: Turn text into emoticons.

Others

• Awesome Reconnect[steamedit.tg-software.com]
  Created by: goncalomb
  Description: Insert your SteamID, the site will ping your Steam profile every minute, keeping track of the last game/server that you were playing on, allowing you to rejoin if the connection is lost.
  
  
• Buy All Steam Games[steam.seewang.me]
  Created by: cwang22
  Description: Ever wonder how much does it costs to buy all games from Steam?.
  
  
• CYROGENiX Steam Tools[steam.cyrogenix.com]
  Created by: Asamak
  Description: Browse your Steam Library by tags and choose games by screenshots.
  
  
• Cu Steam[custeam.io]
  Created by: ?
  Description: Custom home page for your Steam Overlay browser, which automatically adapts to the game you’re playing.
  
  
• EA Play (Add all EA Play games to your Steam library)[tcno.co]
  Created by: TechNobo
  Description: Add all EA Play games to your Steam library [Requires EA Play].
  
  
• Friend Since[jes.re]
  Created by: Jesse Cardone
  Description: Shows a list of a user's steam friends, sorted by time they have been friends.
  
  
• Game Pass Compare[www.gamepasscompare.com]
  Created by: Eli Ezra
  Description: Easily compare all the different gaming subscriptions out there, and find the best one for you. You can easily compare your entire steam wishlist, or browse all games and search across all platforms.
  
  
• Greenlight Updates[greenlightupdates.com]
  Created by: dgc1980
  Description: A awesome website that show every Greenlight game status.
  
  
• How much are you paying per hour?[steam.psykzz.com]
  Created by: psykzz
  Description: The title says all, it shows games order by best value, by cost per hour.
  
  
• How Long To Beat Steam[www.howlongtobeatsteam.com]
  Created by: ohadschn
  Description: Statistical website that show the time of games from your account.
  
  
• Humble Games[calvein.github.io]
  Created by: Calvein
  Description: You can check every game of Humble Store there (widgets format).
  
  
• Keys DB[keys-db.web.app]
  Created by: yotamHak (Lynx)
  Description: A completely free and private database for managing your collection of game keys, with features that appeal for regular gamers, traders and collectors.
  
  
• Overwhelmingly Positive[overwhelmingly-positive.com]
  Created by: ?
  Description: Show all Overwhelmingly Positive games on Steam.
  
  
• Pepeizq's apps[pepeizqapps.com]
  Created by: Pepe
  Description: Apps (to Windows 10) and shortcuts.
  
  
• Removed Games/DLC/Software[removed.timekillerz.eu]
  Created by: TheAnthonyNL
  Description: Check removed apps you have in your account.
  
  
• Review Reader[projects.playables.net]
  Created by: Playables / Mario von Rickenbach
  Description: It read Steam games reviews for you.
  
  
• SteamArchive[steamarchive.net]
  Created by: M!st
  Steam Group
  Description: Archive of Steam Community Profiles.
  
  
• SteamGM[steamgm.com]
  Created by: go9
  Description: Information about your library, inventory, purchases and more.
  
  
• SteamHype[steamhype.com]
  Created by: ?
  Description: List of upcoming games and DLCs with its number of Steam followers on their respective game hub. This metric gives an indication of the hypeness of a title
  
  
• SteamLevels[steamlevels.com]
  Created by: Nacho
  Steam Group
  Description: Calculate how much XP and Cards you'll need to level up to a specific level.
  
  
• Steamosaic[steamosaic.com]
  Created by: skhaz
  Description: Generate a mosaic of your steam account
  
  
• Steam Achievements for Facebook[github.com]
  Createdy by: jrummell
  Description: Steam Achievements is a Facebook app that displays and publishes achievements for Steam games.
  
  
• Steam Error Codes[steamerrors.com]
  Created by: ?
  Description: Listing and description of EResult values
  
  
• Steam Friends[steamfriends.info]
  Created by: Rysanlos & PsyKitty
  Steam Group
  Description: Track your Steam friends and check who is added, deleted or renamed from your friend list.
  
  
• Steam Game Matcher[avi12.com]
  Created by: avi12
  Description: Discover what games both you and your friends own on Steam.
  
  
• Steam Left[steamleft.com]
  Created by: ?
  Description: Funny site that show how long will take to beat every game from your game.
  
  
• Steam Library Filters[www.lorenzostanco.com]
  Created by: Lorenzo Stanco
  Description: Search your games by their tags.
  
  
• Steam Profile Minifier[steam.pm]
  Created by: Doctor McKay
  Description: A Steam Profile URL shortening service.
  
  
• Steam Tools[steam.madjoki.com]
  Created by: Madjoki
  Description: List of Steam bundles, Banned Apps, Free Apps and more useful stuff.
  
  
• Steam Tools - Utility in gaming[steam-tools.net]
  Created by: MisteriosM
  Description: Account Informations and Achievement Stats. Emoticon converter and Steam Roulette.
  
  
• Steam Top 250[steam250.com]
  Created by: Steam 250?!
  Description: Generates the Steam Top 250 website.
  
  
• Steam Tracker[steam-tracker.com]
  Created by: Cae
  Description: Keep track for delisted Steam apps.
  
  
• Steam Workshop Downloader[steamworkshopdownloader.com]
  Created by: fgblomqvist
  Description: Download files from Steam Workshop.
  
  
• Steam Workshop Stats[thejaviertc.github.io]
  Created by: thejaviertc
  Description: This project is made for make people able to see all the stats from addons of Steam Workshop.
  
  
• Stickerbook[stickerbook.golem.blue]
  Created by: Caralynx
  Description: Save your sticker album which will expire 08/05/17.
  
  
• TrashDump
  Created by: [FP] Dr. McKay
  Description: Give me your trash, or take something you want.
  
  
• Video Game Insights[vginsights.com]
  Created by: ?
  Description: Market insights and analysis.
  
  
• What Should I Steam[whatshouldisteam.com]
  Created by: Kolten
  Description: Search through steam's massive library of games to quickly deliver content that you might actually interest you!

Others (Pt. 2)

Part 2 due to the characters limit.

reserved

Valve's Games

Counter-Strike: Global Offensive

• CS:GO Market Float Finder[github.com]
  Created by: adamb70
  Description: Find Counter Strike: Global Offensive Steam Market skin float values, seeds, and skin type. Tabulates data for easy sorting.
  
  
• VAC Error Insta Fixer[github.com]
  Created by: brokenw1nter
  Description: A very simple batch file which helps fix the Valve Anti-Cheat error message.

DotA 2

• DailyDota2[dailydota2.com]
  Created by: Gregor Krambs
  Description: Watch Dota 2 matches with live-stats.
  
  
• Dota Buff[www.dotabuff.com]
  Created by: ?
  Description: A place where millions of Dota 2 players get in depth statistics.
  
  
• Dota Concept[dotaconcept.com]
  Created by: ?
  Description: Concept of new Heroes.
  
  
• YASP[yasp.co]
  Created by: ?
  Description: Another stats page.

Fin!

You know any other site? Comment bellow so i can edit.

If you own any of these sites and do not want it to have shared in this guide, please let me know so I can remove.

Verification for possible dead links/tools in the whole guide will be done once per year, exceptions will occur for individual links/tools know to be dead.

PS: DO NOT copy my guide just to translate to your native language.

This guide helped you? So please share!

Cheers,
DKA

[mindfulObservant]

it doesn't seem to work sadly

[DKA]

Have you tried this? https://gist.github.com/exp111/61c0aa63bd53bf4ec7f9ba037d7a96ca

[mindfulObservant]

yeah i kept seeing that when i was looking it up, i think i saw it on reddit or something

[DKA]

If you find as a userscript please let me know

[DKA]

It's not userscript tho: https://github.com/FlorianLeChat/Steam-Collection-Download-Size-Calculator

[mindfulObservant]

do you guys have a tampermonkey script that calculates the size of a workshop collection? i used to have one now i can't find it sadly

[DKA]

@ KamelittaOida No idea, but I'll leave in the guide at least a bit more because it looks like their domain will only expire next year, so they probably renewed.

[KamelittaOida]

steamleft.com seems to be down. permanent?

[ᴏᴠᴇʀᴅᴜᴇᴛ]

the amount of effort invested in this guide is insane!

[Phandu]

10