Tools / Hash Calculator

Hash Calculator

Compute MD5 and SHA hashes of text or files — computed locally, nothing uploaded.

How to hash text or files

  1. Switch between Text and File, then provide the input.
  2. Press Calculate — MD5, SHA-1, SHA-256, SHA-384 and SHA-512 are computed at once.
  3. Paste an expected checksum to verify a download, or copy any hash.

Frequently asked questions

Which hash should I use?

SHA-256 is the modern default. MD5 and SHA-1 are broken for security purposes but still used for file checksums — fine for integrity, never for passwords.

Can it hash large files?

Yes — files are hashed through the Web Crypto API in your browser. Large files work, limited only by your device's memory.

Is my data uploaded?

Never. Hashing runs locally, so you can verify confidential files even offline.