An agent that runs
on your machine

Your files, your terminal, your browser. Flint works where your work already is — no uploading a codebase to somebody's cloud first.

Free · Windows 10/11 · 64-bit

 read the failing test and fix it

 reading  src/queue.test.ts
 running  npm test -- queue
  1 failing — retry() resolves before the backoff elapses
 editing  src/queue.ts
 running  npm test -- queue
  4 passing

Fixed. retry() awaited the timer handle instead of the
promise, so the backoff never blocked.

Local by default

Most AI tools ask you to paste code into a browser. Flint runs beside your work instead — reading real files, running real commands.

Your filesystem

Reads and edits real files in real projects. No copy-paste, no upload, no context window spent describing your repo.

Your terminal

Runs commands, reads the output, and acts on it. Tests, builds, migrations, git — the boring parts, done properly.

Your browser

With the companion extension, Flint drives the Chrome you already have — signed in, with your session. Not a headless stranger.

Bring your own model

Point it at any OpenAI-compatible endpoint. Your key, your account, your bill — no per-seat markup in between.

Updates that don't interrupt

The engine updates on its own channel, in place. You're told what changed and choose when — nothing swaps underneath you mid-task.

Open underneath

Built on DeepSeek Harness, MIT licensed. The engine is inspectable, replaceable, and not ours to lock down.

Built for people who care how fast their tools are.

Get Flint

Windows installer. macOS and Linux aren't built yet.