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File Hash Calculator

SHA-256, SHA-1, and MD5 of any file.

About

Drop a file and get its cryptographic hashes. Useful for verifying downloads against published checksums, deduplicating files, or just confirming two files are byte-identical. Runs in your browser, files don't leave your device.

How to use

  1. Drop a file.
  2. Read the hashes.
  3. Compare against the published value if verifying a download.

FAQ

Should I trust MD5?+

For download verification on legitimate sources, yes. For security purposes, no. MD5 is broken cryptographically. Use SHA-256 when integrity matters against an attacker.

How does this run in browser?+

Web Crypto API. The browser hashes the file natively, no upload involved.