Advanced Debug
by Omnixerio
Advanced Debug gives players an ImGui-based debugging menu that opens beyond the default F3 screen, with a modding API for building custom debug pages.
What it does
Advanced Debug is a client-side utility that adds an ImGui debugging menu. Its contents go past what the default F3 screen shows, so players can inspect game state in more detail while playing. Only the client needs the mod; a server can run without it, and players may join a server that lacks it.
The mod also exposes a modding API for other developers. It supplies ways to create debug pages, formatters and objects that display values such as integers, strings and specific enums. The project's notes say more features are planned, and that the menu work is still in progress from version 2.3.0 onward.
Advanced Debug requires Architectury API, Fabric API, Forge Config API Port and Omnixerio Modding Library. It is published for Fabric and Forge across six game versions, 1.18.1 – 1.20.1, and is open source under the GNU Lesser General Public License v2.1 or later.
Key features
ImGui debugging menu
An ImGui-based menu presents debugging information in a separate window, extending what the default F3 screen offers.
Custom debug pages
The modding API lets developers add their own pages to the debugging menu.
Value formatters
Formatters turn integers, strings and specific enums into readable entries on a debug page.
Work in progress
The menu is still being developed, and the author has said further features are planned.
Gallery
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 4
Use cases
Inspecting game state
Players who want more detail than the F3 screen shows can open the ImGui menu while playing a single-player or multiplayer client.
Building debug tools
Mod developers can use the API to add pages and formatters for values their own mods expose.
Who it’s for: Players who debug or test on the client, and mod developers who want to present their own values in an ImGui debug menu.
How it compares
DebugUtils is open source under the GNU Lesser General Public License v3.0 only, runs on client and server, and covers Fabric, Forge and NeoForge across 1.18.2 – 26.3. Debug Options is Fabric-only, client-side only and not open source, with files for 1.21.9 – 1.21.10. Advanced Debug runs on Fabric and Forge for 1.18.1 – 1.20.1 and is client-side only.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Advanced Debug | Fabric and Forge | 1.18.1 – 1.20.1 | Client-side only | 2025-01-23 |
| DebugUtils | Fabric, Forge and NeoForge | 1.18.2 – 26.3 | Client and server | 2026-08-21 |
| Debug Options | Fabric | 1.21.9 – 1.21.10 | Client-side only | 2025-09-13 |
Questions
Does Advanced Debug need Fabric API on Forge?
Does Advanced Debug have to be installed on a server?
Which game versions does Advanced Debug support?
In the catalog
Advanced Debug is one of 36,990 Utility mods on ModsFinder, and one of 25,772 Utility mods for Fabric. 34,764 mods support Minecraft 1.20.1.
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Official listing
- Modrinth page
- modrinth.com/mod/advanced-debug
- Owner
- Omnixerio
- Published
- 2022-03-25
- Updated on Modrinth
- 2025-01-23
- Facts verified
- 2026-10-15