Your AI coding bill is one number. CodeBurn tells you which project, which model and which task spent it, and how much was wasted. It reads the session files your tools already keep on disk, with no account, no API keys and nothing to set up. Works with Claude Code, Codex, Cursor, Copilot, Gemini and 36 more. Desktop app, menu bar, Windows tray and terminal. Free, open source, and your data stays on your machine.
CodeBurn is a free, open-source tracker for AI coding costs. It reads the session files your tools already write - Claude Code, Cursor, Codex, Copilot, 40 in all, and shows every token and dollar by the task, model, project, and pull request that used it. The Optimize tab finds waste like cache bloat or retry tax, applies the fix, and tracks what it actually saved. Everything runs on your machine: no account, no uploads. MIT-licensed and genuinely free, used by 150k+ developers across the world.
