Early build for Mac

AI loves markdown,
now you do also.

AI agents think in markdown. They can't read your Notion workspace, your Google Doc, or your Confluence page. Stet brings plain .md into your daily work, with the feel of a real editor.

Download for Mac

Local files · Full history · Any agent

Stet editor showing a markdown document with inline change marks and a sidebar listing edits from Claude and human collaborators

Your best writing is trapped

Try grepping your Notion workspace. Or pointing Claude at your Google Drive. The tools that won the last decade weren't built for the way you actually work now. Your most productive collaborator can't even read your docs.

What it actually does

Plain markdown. Yours to keep.

Your docs are .md files in a folder on your machine. No proprietary format. No cloud sync. No subscription to keep your own writing accessible.

Every change is a proposal.

Edits show up as cards in a review sidebar. One per paragraph. Accept, reject, or refine each one. Nothing lands in your document without your say.

Any agent, no integration.

Claude, ChatGPT, Cursor, a local model. Any AI that can read a file becomes a collaborator. No API key. No marketplace.

Let it stand.

"Stet" is the proofreader's mark for "keep this change." Your files stay yours. Your history stays yours. Whatever you choose to keep, stands. On disk, where you can find it.

Try it.

Download Stet, point it at a folder of markdown, and let an agent edit something. See what it feels like when your documents are actually yours.