📖 Overview
F3Commands is a powerful client-side Fabric mod that makes Minecraft's debug information easily accessible through intuitive slash commands. No more complex F3 key combinations - just type what you need!
70+
Total Commands
4
Categories
100%
Client-Side
📍 Position & World
Get detailed information about coordinates, biomes, dimensions, and world state.
🔧 Debug Tools
Check settings, reload resources, and manage client state with ease.
⚡ Performance
Monitor FPS, memory usage, chunks, and system resources in real-time.
📚 Help System
Built-in categorized help system makes finding commands effortless.
⚙️ Installation
Requirements
- ✅ Minecraft 1.21.5
- ✅ Fabric Loader 0.16.10 or higher
- ✅ Fabric API 0.128.2 or higher
- ✅ Java 21 or higher
Installation Steps
Step 2: Download Fabric API
Step 3: Download the latest F3Commands release
Step 4: Place both .jar files in your
.minecraft/mods folderStep 5: Launch Minecraft with the Fabric profile
• Mod Menu - For in-game configuration UI
• Cloth Config - Already bundled with the mod
🎯 Command Reference
📍 Position & World Information (25 Commands)
| Command | Description |
|---|---|
| /mycoords | Display current XYZ coordinates |
| /myblockpos | Display block position (integer coords) |
| /mychunkpos | Display current chunk coordinates |
| /myrotation | Display yaw and pitch rotation |
| /mydimension | Show current dimension |
| /mybiome | Show current biome |
| /myfacing | Show direction facing (N/S/E/W) |
| /currenttime | Show time of day (0-24000) |
| /worldday | Show current world day number |
| /moonphase | Show current moon phase |
| /myhealth | Show health and max health |
| /myhunger | Show hunger level (0-20) |
| /mysaturation | Show saturation level |
| /myarmor | Show armor value |
| /myair | Show oxygen/air level |
| /myxplevel | Show experience level |
| /myxpbar | Show experience progress % |
| /amionground | Check if standing on ground |
| /myvelocity | Show XYZ velocity |
| /myspeed | Show total movement speed |
| /myhorizontalspeed | Show horizontal speed only |
| /lightlevel | Show total light level |
| /skylightlevel | Show sky light level |
| /blocklightlevel | Show block light level |
| /currentweather | Show current weather |
🔧 Debug & Settings (25 Commands)
| Command | Description |
|---|---|
| /advtooltips | Check advanced tooltips status |
| /switchtooltips | Toggle advanced tooltips |
| /rechunks | Reload chunk rendering |
| /reresources | Reload resource packs |
| /clearchat | Clear chat history |
| /checkfullscreen | Check fullscreen status |
| /checkvsync | Check VSync status |
| /checkfov | Check field of view setting |
| /checkrenderdist | Check render distance |
| /checksimuldist | Check simulation distance |
| /checkgraphics | Check graphics quality |
| /checkframelimit | Check max framerate |
| /checkguiscale | Check GUI scale |
| /checkbrightness | Check brightness level |
| /checkentitydist | Check entity render distance |
| /checkmastervol | Check master volume |
| /checkmusicvol | Check music volume |
| /checkmipmaplevel | Check mipmap level |
| /checkparticles | Check particle setting |
| /checksmoothlighting | Check smooth lighting |
| /checkclouds | Check cloud rendering |
| /checkbiomeblend | Check biome blend radius |
| /checkautosave | Check autosave indicator |
| /viewlimitations | Show F3 limitations notice |
| /windowinfo | Show window dimensions |
⚡ Performance Monitoring (20 Commands)
| Command | Description |
|---|---|
| /currentfps | Show current FPS |
| /avgfps | Show average FPS |
| /maxfps | Show maximum FPS |
| /minfps | Show minimum FPS |
| /fpsreport | Complete FPS report |
| /memused | Show memory used in MB |
| /memmax | Show maximum memory in MB |
| /memfree | Show free memory in MB |
| /memusage | Show memory usage with % |
| /memreport | Complete memory report |
| /chunkupdates | Show chunk update count |
| /chunksloaded | Show loaded chunks |
| /chunkstats | Complete chunk statistics |
| /entitycount | Show total entity count |
| /particlecount | Show particle information |
| /javaversion | Show Java version |
| /cpucores | Show CPU core count |
| /osinfo | Show OS information |
| /sysreport | Complete system report |
| /resetfpstracker | Reset FPS tracker data |
| /perfstatus | Quick performance overview |
📚 Help System (4 Commands)
| Command | Description |
|---|---|
| /f3help | Main help menu |
| /f3info | List all info commands |
| /f3debug | List all debug commands |
| /f3perf | List all performance commands |
💡 Usage Examples
Example 1: Quick Position Check
Player: /mycoords Output: Position: X: 123.45 Y: 64.00 Z: -789.12 Player: /mybiome Output: Biome: minecraft:plains
Example 2: Performance Monitoring
Player: /perfstatus
Output: === Performance Status ===
FPS: 60 (avg: 58)
Memory: 1024/4096 MB (25%)
Chunks: 441
Example 3: Debug Settings
Player: /checkrenderdist Output: Render Distance: 12 chunks Player: /checkfov Output: FOV: 90
Example 4: Complete Reports
Player: /fpsreport
Output: === FPS Report ===
Current: 60
Average: 58
Maximum: 75
Minimum: 45
❓ Frequently Asked Questions
Q: Does this work on servers?
A: Yes! F3Commands is completely client-side, so it works on any server without requiring server-side installation.
Q: Will this get me banned?
A: F3Commands only displays information that's already available through vanilla F3 debugging. It doesn't modify gameplay or provide unfair advantages.
Q: Can I customize the commands?
A: Currently, command names are fixed. Configuration options may be added in future versions.
Q: Why don't hitboxes/chunk borders work?
A: Minecraft 1.21.5 doesn't expose these toggles to mods. You'll need to use the vanilla F3 keys for these features.
Q: How do I report bugs?
A: Open an issue on our GitLab Issues page with details about the problem.
Q: Can I contribute to the project?
A: Absolutely! We welcome pull requests. Check out our GitLab repository.