Early build for Mac

What if prose had
pull requests?

Developers have diffs, branches, and code review. Writers don't. Stet brings those primitives to your markdown. AI edits show up as proposals you review like a PR. Beautiful reading experience on top.

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

Writing didn't get the developer tools

Devs have had diffs, code review, and version control for twenty years. Writers are still emailing v2_final_FINAL.docx. Or pasting AI output straight in with no record of what changed. The same rigor, without the complexity, is overdue.

What it actually does

Pull requests, for paragraphs.

Edits show up as cards in a review sidebar. One per paragraph. Accept, reject, or refine. Like a PR review, except you're reading prose.

Git underneath, no terminal.

Every version saved. Every change attributed. Full history you can revert at any time. You never touch a command line.

Plain files. Any agent.

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

Let it stand.

"Stet" is the proofreader's mark for "keep this change." It's the merge button for prose. You decide what stands.

Try it.

Download Stet, point it at a folder of markdown files, and let an AI agent loose. See what it feels like to review changes instead of just accepting them.