Debug Properties Plus
by jacobsjo
Debug Properties Plus lets players change the game's debug properties at runtime through a UI opened with F3+F7, and through a server command.
What it does
The mod adds a UI for modifying debug properties while the game runs, opened with F3+F7. Controls for it can be reassigned through Mod Menu. Because the debug properties are diverse, the mod groups them by type. Values can be set during world creation, and the defaults are applied when the F3+F7 menu is opened from the main menu.
On a server, the mod adds a debugproperties command that sets properties for the server even when only the client has the mod installed. Some properties mostly affect debug renderers and need player OP permissions. Some do not work in multiplayer, and the mod shows a warning when such a property is changed. Debug properties exist for debugging only, and changing them can corrupt a world, so the mod is meant for players who know what they are doing. Fabric API is required.
The mod is open source under the MIT License and is published for Fabric only. Its game versions run 1.21.10 – 26.3, with files for 1.21.10, 1.21.11, 26.1 and 26.3. Snapshot builds are published as well, and the latest Fabric file is 1.0.1+26.3-rc-3 for 26.3, released on 2026-09-14.
Key features
Runtime debug UI
A screen opened with F3+F7 changes debug properties without restarting the game.
Server command
The debugproperties command sets properties on a server, so clients without the mod can be affected by it.
Warnings on risky changes
A warning appears when a property does not work in multiplayer or may corrupt the world.
World creation options
Debug properties can be set before a new world is created, with defaults applied from the main menu.
Gallery
Compatibility
Latest build for each game version and loader.
This mod also publishes snapshot builds. Snapshots are not shown in the matrix.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
How it compares
Minimal Debug Menu is a Fabric client-side mod for 1.21.11, published under All rights reserved and not open source, so it does not change server behavior. Command Limit Tracer is server-side only, open source under the MIT License, and covers 1.21.11 – 26.1.2. Just Enough Keybinds is client-side only, open source under the MIT License, and covers 1.21 – 1.21.11, so it handles keys rather than debug properties.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Debug Properties Plus | Fabric | 1.21.10 – 26.3 | Client or server, optional | 2026-09-14 |
| Minimal Debug Menu | Fabric | 1.21.11 | Client-side only | 2026-03-31 |
| Command Limit Tracer | Fabric | 1.21.11 – 26.1.2 | Server-side only | 2026-06-14 |
| Just Enough Keybinds | Fabric | 1.21 – 1.21.11 | Client-side only | 2026-01-25 |
Questions
Does Debug Properties Plus need Fabric API?
Does the server need the mod for the debugproperties command?
In the catalog
Debug Properties Plus is one of 8,016 Management mods on ModsFinder, and one of 5,930 Management mods for Fabric. 8,071 mods support Minecraft 26.3.
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What the author says
Debug properties exist for debugging purposes only. They might corrupt your world! Only use this mod if you know what you are doing. This is a Minecraft fabric mod that adds a convenient UI to modify debug properties at runtime. The UI can be opened using F3+F7 (can be changed in controls) and using Mod Menu. This…
Official listing
- Modrinth page
- modrinth.com/mod/debug-properties-plus
- Owner
- jacobsjo
- Published
- 2025-12-31
- Updated on Modrinth
- 2026-09-14
- Facts verified
- 2026-10-15