A modern replacement for Minecraft's debug overlay. Fully customizable, draggable, and profile-based — all without replacing the vanilla F3 data.
Supports Minecraft 1.21.1, 26.1.2, and 26.2 on Fabric and NeoForge.
- Mirrors all vanilla F3 debug lines (left and right columns) with a clean, styled overlay.
- Every module is draggable — open the edit screen with F8 and place things where you want.
- Right-click any module to customize text color, background color, opacity, scale, and text shadow.
- Profiles — save and switch between different layouts instantly.
- Snap-to-grid — hold Shift while dragging for pixel-perfect alignment.
- Copy & paste styles across modules or apply a style to all modules at once.
- Full developer API for adding custom modules from other mods.
| Key | Action |
|---|---|
| F3 | Toggle the debug overlay |
| F8 | Open the edit screen |
| Left-click + drag | Move a module (edit screen) |
| Shift + drag | Snap to grid |
| Right-click | Edit module settings |
We are partnered with Kinetic Host who help support the continuous development of this mod. Truly, a great host with really good prices and support.
Modern F3 stores its config per-profile. Profiles are saved in the game directory under .minecraft/config/modern_f3/. You can distribute preset profiles with your modpack by including these files.
See developer.md for the full API guide on adding custom overlay modules from your own mod.
The project uses Gradle Stonecutter. Build a target with ./gradlew :<minecraft>-<loader>:build -x copyjar, such as ./gradlew :1.21.1-fabric:build -x copyjar.
As a solo developer, updates may take time sometimes. I wish you will be patient with me and my work. For any questions, feature requests, or bug reports — join the Discord.