Freebuff

May 11, 2026 · View on GitHub

The free coding agent. No subscription. No configuration. Start in seconds.

An AI coding agent that runs in your terminal — describe what you want, and Freebuff edits your code.

Install

npm install -g freebuff

Usage

cd ~/my-project
freebuff

Why Freebuff?

Simple — No modes. No config. Just works.

Fast — 5–10× speed up. Faster models plus context gathering in seconds rather than minutes.

Loaded — Built-in web research, browser use, and more.

Connect ChatGPT — Link your ChatGPT subscription for planning and review.

Features

  • File mentions — Use @filename to reference specific files
  • Agent mentions — Use @AgentName to invoke specialized agents
  • Bash mode — Run terminal commands with !command or /bash
  • Chat history — Resume past conversations with /history
  • Knowledge files — Add knowledge.md to your project for context
  • Themes — Toggle light/dark mode with /theme:toggle

Commands

CommandDescription
/helpShow keyboard shortcuts and tips
/newStart a new conversation
/historyBrowse past conversations
/bashEnter bash mode
/initCreate a starter knowledge.md
/feedbackShare feedback
/theme:toggleToggle light/dark mode
/logoutSign out
/exitQuit

FAQ

How can it be free? Freebuff is supported by ads shown in the CLI.

What models do you use? DeepSeek V4 Pro (smartest, but its API collects data for training), Kimi K2.6, MiniMax M2.7, or DeepSeek V4 Flash as the main coding agent. Gemini 3.1 Flash Lite handles file finding and research, and GPT-5.4 handles deep thinking if you connect your ChatGPT subscription.

Are you training on my data? No. We only use model providers that do not train on our requests. Your code stays yours.

Which countries is Freebuff available in? Freebuff is currently available in select countries. See freebuff.com for the full list.

What data do you store? We don't store your codebase. We only collect minimal logs for debugging purposes.

How It Works

Freebuff connects to a cloud backend and uses models optimized for fast, high-quality assistance. Ads are shown to support the free tier.

Project Structure

freebuff/
├── cli/       # CLI build & npm release files
└── web/       # Freebuff website

Building from Source

# From the repo root
bun freebuff/cli/build.ts 1.0.0

Built on the Codebuff platform.

License

MIT