Storybase

Free AI copyeditor & proofreader

A professional copyedit for your book — free.

Our AI editor reads every line of your manuscript against the Chicago Manual of Style — fixing grammar, punctuation, and consistency while leaving your voice untouched. Review every change inline, then download a clean, publish-ready manuscript.

Upload it and step away — we'll email you the moment it's ready, and show you every change right here.

Your redlineChapter 3

The committee had recieved received the report, and it's its findings were crystal clear and obvious unambiguous.

Correction · Spelling

“i before e, except after c.”

recievedreceived
KeepDismissEdit

A complete copyedit — not a spell-check.

It reads your whole book the way a professional editor would, on four levels at once.

Grammar, spelling & punctuation

Every line, held to the Chicago Manual of Style — the typos and slips that hide from your own eyes after the tenth read.

Consistency across the whole book

Names, terms, numbers, capitalization, and hyphenation made uniform from the first chapter to the last.

Your voice, preserved

We fix errors and tighten consistency — never your style, your phrasing, or your dialogue. Your voice stays yours.

Optional line edits

Trim wordiness and repetition where you want it — off by default, and never applied unless you ask.

You stay in control

Review every edit. Approve every change.

Your copyedit comes back as a clean redline of your full manuscript — every change marked in place and explained with the rule behind it. Keep, dismiss, or rewrite each one inline. Nothing touches your book unless you approve it.

Done reviewing? Download two ways — a clean manuscript, or a tracked-changes Word file you can accept or reject edit-by-edit in Microsoft Word.

Keepapply the change to your manuscript.

Dismissrevert it — your original wording stays.

Editrewrite it your way, in your words.

Download cleana finished, publish-ready .docx.

Tracked changesevery edit as Word revisions, accept or reject in Word.

How it works

1

Upload your manuscript

Drop in your .docx. Our AI copyeditor reads it cover to cover against the Chicago Manual of Style.

2

Review your redline

Every correction is marked in place and explained. Keep, dismiss, or rewrite each change inline — your voice, your call.

3

Download & publish

Export a clean manuscript, or a tracked-changes file for Word. Publish-ready.

Your polished book is the doorway.

Turn your clean manuscript into a free ebook, open it in a beautiful reader, and share a link — then turn those readers into an audience you actually own, with a reader CRM, offers, and a launch team. The book is where it starts, not where it ends.

See the free ebook generator →