Mipui
Campaign Cartographer
Tabletop RPG Map editor 2
Dungeon Scrawl
Roll20
Inkarnate
Dungeon Map Doodler
donjon.bin.sh
Beyond Tabletop
Roll20
Astral Tabletop
Fantasy Grounds
MapTool
D&D Beyond
Rolisteam
PlanarAlly
Beyond TabletopWhile many of us have become pampered by DND Beyond's rulebook integration, Beyond Tabletop brings us back to our basics. By removing the integrated rulebooks they allow for every feature to be homebrewed and managed how you and your DM desire. In my findings it is the best tool out there as far as capturing the feel of pen and paper while also giving the versatility and ease of access of the internet.
Campaign Cartographer - Campaign Cartographer is the leading map making software for games (RPGs, miniatures and wargaming).
Roll20 - Roll20 is a suite of easy-to-use digital tools that expand pen-and-paper gameplay.
Tabletop RPG Map editor 2 - RPG Map II is a “tabletop RPG” oriented map maker, created with the “keep it clean & simple” philosophy in mind.
Astral Tabletop - Create, host, and manage your tabletop role-playing games — online or in person
Dungeon Scrawl - A dungeon scrawling tool by ProbableTrain
Fantasy Grounds - Fantasy Grounds is a virtual tabletop to help facilitate play of tabletop-style role-playing games...