From first draft to first reader.

Write anywhere, even without a connection

Your writing, notes, and attachments save to your device as you type and sync automatically when you're back online. A plane, a train, a dead zone — it just works.

Drafts live locally first, so a flaky connection never costs you a sentence.

Your writing is always yours

No exclusivity clause. No revenue cut on sales made elsewhere. Publish here and anywhere else — other platforms or your own website — at the same time, so you stay the author, free to sell through any channel.

• Export to Word, Markdown, or plain text — even offline.

• No exclusivity, no platform lock-in, ever.

Get feedback before you publish

Start a private review on any chapter, invite a trusted reader or an editor by handle, and collect notes line by line — right inside Chapterstack. No exporting to a separate document, no chasing edits over email.

Reviews run on a snapshot, so your draft keeps moving while feedback comes in. Reviewers can react to each other's notes, and you can add or remove people and close the session whenever you're done.