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The AI Word editor for your DOCX files.

Ask for a change. Nebula edits the pages of your .docx, and you keep what’s right.

DownloadRead Word docs

Free forever. Mac, Windows and Linux.

wholesale-pricing-memo.docx open in Nebula Writer. The Recommendation paragraph has been rewritten as a dated decision and the Tier B proposed price changed to $11.40; both are highlighted, with Inspect changes, Discard and Keep above the page.
“Make the recommendation specific and set Tier B to $11.40.”

Edit the document, not a copy.

Nebula opens the Word file itself. No pasting chat answers back into Word.

  • Styles stay yours.

    Headings, fonts and tables keep the styles already in the file.

  • Comments and changes.

    Reply to and resolve comments, and accept or reject tracked changes.

  • Numbers from your files.

    Name a workbook or report in the folder. The agent reads it and updates the text.

  • It checks its own work.

    The agent renders the saved pages and checks them before and after an edit.

You have the final say.

Every change is highlighted on the page. Step through them, then keep the edit or put it back.

  • Before and after.

    Inspect changes shows each change with its old and new text.

  • Keep or discard.

    Keep saves the edit. Discard puts back the exact original.

  • Too much at once?

    Discard it and ask again for one section.

The Word editor waiting for review: DOCX, 2 changes, kept or discarded together, with Inspect changes, Discard and Keep above the memo. The rewritten recommendation and the $11.40 Tier B price are highlighted in green.
Pending. Two changes, marked until you decide.

Before you ask.

Can it edit a Word document I already have?

Yes. Open the .docx from your folder and ask for the change. Nebula edits that file, keeps its styles, and the edit waits for your review.

Can it handle comments and tracked changes?

Yes. The agent can add, reply to and resolve comments, and accept or reject tracked changes. Open the final file in Word before you send it if reviewers will read them.

Can I keep some changes and discard others?

Not in a Word file. You can inspect each change, but you keep or discard the whole edit. If only part is right, discard it and ask for a narrower change.

Do I need Microsoft Word?

No. Nebula opens, edits and saves .docx files without Microsoft 365, and exports them to PDF. For fields, footnotes or a strict house style, check the final file in Word.

What leaves my computer?

Your request and the parts of your documents the agent needs go to our servers and our AI provider. Your files stay in your folder.

What does it cost?

$0 forever for the editor and a monthly AI allowance. No card needed. Pro is $25 a month for more AI.

Open a document. Ask for the change.

Free forever, with a monthly AI allowance. Pro is $25 a month for more AI.

Download

Free forever. No card needed. See plans

  • Can AI edit a Word file?

    What editing the .docx in place keeps intact, and how to check it.

    Read the guide

  • Tracked changes and comments

    Sort a review pass, accept or reject changes, and resolve comments.

    Read the review guide

  • Excel to report

    Turn a workbook into a written report with the final numbers.

    See Excel to report