Headroom is a desktop app for Mac, Windows, and Linux, built on the open-source Headroom CLI. It runs a local proxy between your coding agent and the model, reversibly compressing noisy logs, tool output, and documents so Claude Code or ChatGPT Codex sees fewer tokens. The compression runs on your machine.
The app shows token and cost savings on a dashboard, writes project learnings to files such as CLAUDE.local.md (opens in new tab) and AGENTS.md (opens in new tab), and has a one-click add-on manager for tools like RTK, Serena, Codebase Memory, and Context7.
The AppSumo deal has three lifetime tiers. Tier 1 ($29) targets Claude Pro or ChatGPT Plus plans, Tier 2 ($99) covers up to Claude Max x5, and Tier 3 ($199) covers up to Claude Max x20 and ChatGPT Pro. Each tier is one user license. Of 24 reviews, 21 are 5 stars.



