Free in beta · Founding users wanted

Know what your AI wrote.
Approve every change.

AI is writing more of your work. Stet makes every edit visible, attributed, and yours to accept or reject. Nothing lands without your sign-off.

Download for Mac

Local files · Full history · Any agent

Most tools treat AI like the final draft

The words just appear, unattributed and unreviewed. Stet treats AI like a co-author.

A review card showing a change suggested by Claude, with accept, reject, and refine controls

Accept, reject, refine.

Edits arrive as proposals, one per paragraph. Accept the good ones. Reject the rest. Nothing lands without your call.

A note left on a highlighted line of a document, with an instruction reading make this a checklist

Leave notes for your AI.

Write an instruction right in the doc. Your agent picks it up and the edit comes back for review. A comment thread with your co-author.

A folder of markdown files that Claude, ChatGPT, or a local model can all read

Plain files. Any agent.

Your docs are markdown on your machine. Any AI that can read a file becomes a collaborator. No integration, no API key.

A teammate's change arriving from a GitHub branch, ready to review, with two collaborator avatars

Collaborate over GitHub.

Point Stet at a GitHub repo. When a teammate pushes a change, it shows up as a proposal to review, the same flow as an AI edit.

Let it stand.

"Stet" is the proofreader's mark for "keep this change." Every review ends with that call. The mark is yours.

Built for people whose notes are already plain text and whose drafts start in a chat window.

It's a beta. You can shape it.

Stet is free while it's in beta. Founding users lock in founder pricing when paid plans arrive. The deal: use it on real documents and tell me what breaks. The Discord is fastest, email works too.

Download for Mac Join the Discord

macOS build · free in beta · feedback goes straight to me