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Office metadata remover

Drop a Word, Excel or PowerPoint file and strip its hidden author/company/date properties. Everything stays on your device.

How Office metadata remover works

Office metadata remover strips the hidden document properties stored inside Word (DOCX), Excel (XLSX) and PowerPoint (PPTX) files: author name, company, manager, last-modified-by, revision count, creation date, last-printed date and custom properties set by your organisation's templates. These fields travel invisibly with the file and can expose personal or corporate information when you share a document externally. The tool works entirely in your browser using JavaScript and the JSZip library to unpack, clean and repack the Open XML structure.

Know the scope: the tool reaches the standard document properties stored in the Open XML core-properties and extended-properties XML parts. It does not alter content in the document body itself, such as tracked changes, comments, speaker notes or embedded macros. Review the output to confirm what was cleaned before sharing. Only the modern Open XML formats (DOCX, XLSX, PPTX) are supported; the legacy binary .doc, .xls and .ppt formats are not.

Written by Bastien Sulyan

How to use Office metadata remover, step by step

  1. Drop a DOCX, XLSX or PPTX file onto the upload area.
  2. The tool lists the document properties it found (author, company, revision count, dates).
  3. Click 'Remove metadata' to strip the listed properties from the Open XML structure.
  4. Download the cleaned file and verify the properties are gone before sharing.

Common use cases

  • External sharing: remove your name, company and revision count from a contract or proposal before sending it to a client or partner.
  • Legal submission: strip document properties from a DOCX exhibit before submitting it to court to avoid revealing the drafter's identity.
  • Template distribution: clean the author and company fields from a PPTX template before publishing it publicly so recipients start with a blank provenance.
  • Privacy audit: inspect what properties are stored in files received from third parties before opening them on a shared system.

Frequently asked questions

Which document properties does the tool actually remove from a DOCX?

The tool removes properties stored in the Open XML core-properties part (dc:creator, dc:description, cp:lastModifiedBy, cp:revision, dc:created, dcterms:modified, cp:lastPrinted) and the extended-properties part (company, manager, application name). Custom properties defined in the file are also removed. Tracked changes, comments and embedded macros are in the document body and are not touched.

Does removing these properties affect formatting or content in the document?

No. Only the XML property files inside the Open XML package are modified. The text, tables, images, styles, charts and formatting in the document body are untouched. The cleaned file opens and renders identically to the original. It is a new copy: the file you selected on your disk is never rewritten, so you keep the original if you need it.

The file still shows an author name after cleaning. Why?

The author name may appear in more than one place. The tool removes the standard document properties, but an author name may also appear inside a tracked-change record, a comment, a text box in the document body, or a digital signature. Those are separate and are not removed by this tool.

Does the office metadata remover upload my DOCX to a server?

No. Your file is unpacked, cleaned and repacked entirely in your browser tab using JavaScript and JSZip. Nothing is sent to Sunasty's servers or any third party. The cleaned file is offered as a download from your device. You can confirm this by opening browser DevTools and checking that no network request carries your file.

Can I clean a .doc or .xls file that is not Open XML?

No. Legacy binary formats (.doc, .xls, .ppt) use a different structure that this tool cannot parse. Open the file in Microsoft Office or LibreOffice and save it as DOCX/XLSX/PPTX first, then clean the metadata here.

Will tracked changes or comments reveal the original author even after cleaning?

Yes. Tracked changes and comments in a Word document store the author name of each change as part of the revision record itself. Removing document properties does not remove those names. To anonymize tracked changes, you need to accept or reject all changes and delete all comments before running the metadata cleaner.

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