It is just a BF interpreter.
BF is an esolang, an esoteric programming language, which means it is not designed for actual development, but only for fun. Besides, it also indicates that BF is fully Turing-complete.
Usage
Run
- Press
Gto open the dialog screen. - Type BF code into the "Code" panel.
- Type input into the "Input" panel if needed.
- You can change the length of tape of memory cells by sliding "Array Length" silder.(Default: 100). Some programs require a longer tape, which probably influences performance.
- Click "save" button to save the code and input.
- Press
Gagain and click "run" to run the interpreter.
Stop
- Use
/scoreboard players set #cmd_stop brainfuck.re 1to stop the program.
Modification
- Use
/function brainfuck:debug/panelto config.
Link
- Implementation Detail. https://cr-019.github.io/datapack-index/feature/archive/202602/6/content.html.
- Video. https://www.bilibili.com/video/BV1TLzqBLEEZ/.
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.11
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — see the MC Java Mods guides for the full walkthrough.
Verified by MCModsHub
- Downloads as brainfuck.zip
- Download size: 48 KB
- Download link checked 24 Aug 2026 — working
These come from our own check of the pack file, not from the source page.