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Security & Privacy

Scrub metadata, lock files, hide messages, redact personal data. 8 free tools that run 100% in your browser.

  • Metadata Scrubber: Remove hidden data from photos, PDFs, Office files and MP3s in one batch: GPS, camera, author, company and more.
  • Steganography: Hide a secret message or small file inside an image, with an optional password, and reveal it later.
  • Checksum Verifier: Check many downloads against SHA256SUMS or MD5 lists, or make your own checksum file.
  • Password ZIP: Make an AES-256 password-protected ZIP that opens anywhere, or unlock one you have the password for.
  • PII Redactor: Find and mask emails, phone numbers, card numbers, IBANs, IPs, Aadhaar, PAN and SSNs in text before you share it.
  • Hidden Character Detector: Reveal zero width characters, direction tricks, invisible tags and look-alike letters in text, then clean them.
  • Locked HTML File: Lock a file or note inside a single HTML page that opens in any browser with your password, no app needed.
  • File Entropy Analyzer: Map the entropy of any file to spot encrypted, compressed or hidden regions, with a byte histogram.

OpenFile runs in your browser. Turn on JavaScript to use the tools.