Office Metadata Cleaner

Remove author and revision data from Word, Excel and PowerPoint

Inspect and remove author, company, revision, comments and custom properties from .docx, .xlsx and .pptx files, locally.

DOCX
XLSX
PPTX
Metadata
Privacy

How to use Office Metadata Cleaner

Add .docx, .xlsx, .pptx, .odt, .ods or .odp files by button, drop or paste.
Review the properties, custom properties, reviewers, thumbnails and warnings for hidden sheets, slides and tracked changes.
Choose what to blank and press Clean; the output is re-read to verify and shown before and after.
Download name-clean.docx (or the matching extension), or all files as a ZIP.

How it works

Office files are ZIP archives. A built-in ZIP reader parses the central directory, refuses unsafe part names (parent folders, absolute paths, backslashes), duplicate names and oversized parts, and inflates only the XML parts it needs, with a hard size cap. docProps/core.xml (author, last modified by, dates, revision, title), docProps/app.xml (company, manager, application, template, editing time) and docProps/custom.xml are read with a small XML parser that ignores DOCTYPEs and never expands entities. Comments, tracked changes, reviewer lists, hidden sheets and slides, and thumbnails are located in the matching parts. OpenDocument files use meta.xml, content.xml and Thumbnails/.

Cleaning removes the chosen metadata elements, replaces reviewer names on comments and tracked changes with a generic name, and drops the thumbnail together with its relationship or manifest entry. All other parts are copied byte for byte. The new archive is opened again and checked for anything the options asked to remove.

Limits

Up to 200 MB per file, 500 MB in total, 50 files and 5000 parts per file; a single XML part may inflate to at most 64 MB.
Supports .docx, .xlsx, .pptx, their macro-enabled forms, and .odt, .ods, .odp. Old .doc, .xls and .ppt files and password-protected files are not supported.
Document content is not changed: text, comments, tracked changes, hidden sheets and slides, macros and printer settings stay and are listed as warnings.
Cell values, headers, footers and text in the body can still contain names.
Custom properties are removed entirely, which also drops sensitivity-label identifiers stored there.
ZIP64 archives are not supported.

Privacy

Documents are read and rewritten in your browser tab. Nothing is uploaded or stored, and no network requests are made with your files.

Frequently asked questions

What does Word or Excel save about me?

The author and last editor, creation and modification times, revision number, total editing time, company and manager from the Office profile, the template, the application version and often a small thumbnail of the first page.

Will the document still open?

Yes. Metadata elements are removed or blanked and the thumbnail relationship is removed with its file. The tool opens the output again to check it, and unchanged parts are copied byte for byte.

Are comments and tracked changes removed?

No. Only the names and dates attached to them are replaced. Accept or reject changes and delete comments in your Office app to remove their content.

Why was my file refused?

It may be password-protected, an old binary format, damaged, or contain unsafe part names. The message says which.

Does it work for OpenDocument files?

Yes: .odt, .ods and .odp metadata in meta.xml, annotation and change authors in content.xml, and the thumbnail are handled.

More tools

Clean Image: Inspect and remove hidden image metadata
JWT Decoder: Decode and verify JSON Web Tokens
Diff Checker: Compare two texts line by line
JS Runner: Run JavaScript and TypeScript in your browser
JSON Formatter: Format, validate and minify JSON
Encode / Decode: Base64, URL, HTML entity and hex
Hash Generator: MD5, SHA and HMAC of any text
UUID Generator: Generate UUID v4 and v7 in bulk
Timestamp Converter: Unix time ↔ human dates
Regex Tester: Test regular expressions live
URL Parser: Break a URL into its parts
HTTP Status Codes: Look up any HTTP status code
MIME Type Lookup: File extension ↔ MIME type
Password Generator: Strong random passwords and passphrases
Random String Generator: Random tokens, IDs and keys
Slug Generator: Turn titles into URL slugs
Case Converter: camelCase, snake_case, Title Case and more
Word Counter: Count words, characters and reading time
JSON to TypeScript: Generate TypeScript types from JSON
JSON Diff: Compare two JSON documents structurally
JSON to SQL: Turn JSON arrays into SQL inserts
YAML ↔ JSON: Convert between YAML and JSON
XML ↔ JSON: Convert between XML and JSON
CSV ↔ JSON: Convert between CSV and JSON
CSV Viewer: View, sort and filter CSV files
SQL Formatter: Format and beautify SQL queries
cURL ↔ Fetch: Convert cURL commands to fetch and back
Markdown Editor: Write Markdown with a live preview
Text Cleaner: Remove duplicate lines, empty lines and extra spaces
Find & Replace: Find and replace in any text
Cron Expression Builder: Build and explain cron schedules
User-Agent Parser: Identify browser, OS and device from a user agent
HTTP Headers Inspector: Paste response headers and get them explained
JWT Generator: Create and sign test JSON Web Tokens
Certificate Inspector: Decode PEM certificates and keys
Meta Tag Inspector: Check a page's SEO and social tags
UTM Builder: Build campaign URLs with UTM parameters
URL Cleaner: Strip tracking parameters from links
Robots.txt Generator: Create and test a robots.txt file
Sitemap Generator: Create an XML sitemap from a list of URLs
Image Compressor: Shrink JPEG, WebP and AVIF images in your browser
Image Resizer: Resize images by pixels, percentage or to fit a box
Image Converter: Convert between PNG, JPEG, WebP and AVIF
Image to Base64: Encode images as Base64 data URIs and decode them back
SVG Optimizer: Minify and sanitize SVG files
Favicon Generator: Make favicon.ico, Apple and Android icons from an image or emoji
Color Converter: HEX, RGB, HSL, OKLCH and contrast checks
Number Base Converter: Binary, octal, decimal, hex and float bits
IP / CIDR Calculator: Subnets, masks and IP ranges for IPv4 and IPv6
JSONPath Query: Query JSON with JSONPath expressions
JSON Schema Validator: Validate JSON against a schema, or generate one
Semver Checker: Check versions against semver ranges
chmod Calculator: Unix permissions: rwx ↔ octal
.env Diff: Compare and validate .env files
TOTP Generator: Generate and verify 2FA codes
String Escaper: Escape and unescape strings for any language
Unicode Inspector: See every character, code point and hidden symbol
Mock Data Generator: Generate realistic fake data
QR Code Generator: Create QR codes for links, Wi-Fi and contacts
Lorem Ipsum Generator: Placeholder text in paragraphs, sentences or words
Date Calculator: Date differences, business days and durations
Unit Converter: Convert bytes, lengths, weights, temperatures and more
Query CSV with SQL: Run SQL queries on CSV files
PDF Merge & Split: Merge, split, reorder and rotate PDFs
PDF Metadata Cleaner: See and remove hidden PDF metadata
Images to PDF: Combine images into one PDF
Image Editor: Crop, rotate, resize and adjust images
Encrypt / Decrypt Text: Encrypt text with a passphrase (AES-GCM)
SSH Key Generator: Generate Ed25519 and RSA SSH keys locally
Email Header Analyzer: Trace an email's path and check SPF, DKIM and DMARC
JSON to Code: Generate Go, Python, Rust, Java, C# and Kotlin models from JSON
docker run ↔ Compose: Convert docker run commands to docker-compose and back
Color Palette Extractor: Pull the dominant colours out of any image
Password Strength Checker: How long would your password take to crack?
SPF / DKIM / DMARC Checker: Validate and explain email DNS records
Kubernetes YAML Checker: Validate and explain Kubernetes manifests
.gitignore Generator: Build a .gitignore from presets
CSP Builder: Build and check a Content-Security-Policy
JSON-LD Generator: Create schema.org structured data
Open Graph Image Generator: Make 1200×630 social preview images
CSS Generator: Gradients, shadows, clamp() and more
Time Zone Meeting Planner: Find meeting times across time zones