DevMC
by jcmcc
DevMC, a Fabric mod for Minecraft Java Edition 1.21.11, adds developer tools to the base game for testing, debugging and experimentation.
What it does
Installed on a client or server, the mod exposes a set of debug commands and screens that track entities and give access to a special mannequin entity. Players can use them to inspect the game while experimenting or building their own mods. Files are published for Fabric only, for 1.21.11, with the MIT License covering the code. Client and server environment means both sides need the mod.
Key features
Developer commands
A set of commands for testing, debugging and experimenting with the game, with entity tracking and a special mannequin.
Debug renderers
F3 hotkey combinations E, L, U, V and W reimplement debug renderers, each one toggled on its own.
Tools for mod development
Developer tools embedded in the base game give mod authors a place to try out ideas before writing their own code.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Questions
Does DevMC need Fabric API?
More from jcmcc
What the author says
A Fabric mod that enables or implements developer tools embedded in the base game. You can play around with these tools for fun or utilize them when developing your own mod. F3-E F3-L F3-U F3-V F3-W Reimplements debug renderers which can be enabled individually via a custom F3 hotkey: F3-F6
Official listing
- Modrinth page
- modrinth.com/mod/devmc
- Owner
- jcmcc
- Published
- 2026-01-30
- Updated on Modrinth
- 2026-01-30
- Facts verified
- 2026-10-15