Looking for an online or Mac compatible map editor

[Theatretroll]

Okay, look, I'm not proud of it, but I am straight up sick of trying and failing to contain my world's corruption and hallow, so I've been looking for a map editor to just wipe it out once and for all. But all the map editors that I've found are Windows only. So if anyone knows of any Mac compatible, or online only (like Terrasavr's inventory editor) map editors, PLEASE send them my way!

[Taps]

As far as i know there aren't any avalible for mac sorry.
The closest thing you can get is a program called TerraMap Online or Python World Viewer but they do not allow map editing.