Debug Renderers
by flamgop
Debug Renderers brings back the debug overlays that Minecraft's developers once used, drawn with vanilla-friendly code on Fabric 1.21.1.
What it does
Debug Renderers is a mostly vanilla-friendly reimplementation of renderers that were removed from the game after development. Its pathfinder rendering draws the routes that mobs plan. It works on either side, and neither needs it. It requires Fabric API and bundles MidnightLib internally. Files exist for 1.21.1 only, with 1.1.0 as the latest, released 2024-10-22 under the Apache License 2.0, which is not open source.
Key features
Removed debug renderers
Restores renderers the developers once used for debugging, rebuilt to stay close to vanilla behavior.
Pathfinder rendering
Shows the paths that mobs calculate, which helps when studying how entities move through the world.
Server-side settings
Server owners can decide which renderers are available, and some are labelled DISABLED until enabled, as of version 1.1.0.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
Embedded 1
How it compares
F3 Remover is a Fabric mod for 1.21.1 – 1.21.11 that both the client and server run, and it is not open source. CommandF3 is a client-side Fabric mod for 1.21.1 – 1.21.11 under the MIT License, which is not open source.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Debug Renderers | Fabric | 1.21.1 | Client or server, optional | 2024-10-22 |
| F3 Remover | Fabric | 1.21.1 – 1.21.11 | Client and server | 2026-02-01 |
| CommandF3 | Fabric | 1.21.1 – 1.21.11 | Client-side only | 2026-06-02 |
Questions
Does Debug Renderers need Fabric API?
Which Minecraft version does Debug Renderers support?
In the catalog
Debug Renderers is one of 7,555 Cursed mods on ModsFinder, and one of 4,235 Cursed mods for Fabric. 32,366 mods support Minecraft 1.21.1.
More from flamgop
Similar mods
What the author says
This mod reimplements those secret developer debug renderers that exist only in non-public builds of minecraft. The server must have the mod to use certain renderers (the ones labelled "DISABLED")
Official listing
- Modrinth page
- modrinth.com/mod/debug-renderers
- Owner
- flamgop
- Published
- 2024-10-22
- Updated on Modrinth
- 2024-10-22
- Facts verified
- 2026-10-15