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File Checksum Calculator

Calculate SHA-256, SHA-1, SHA-384 and SHA-512 checksums of any file and compare them with a published hash.

Files never leave your device Instant results 100% free No sign-up

How to use the File Checksum Calculator

  1. Choose your file or enter your text — it stays on your device.
  2. Review the results and adjust options as needed.
  3. Copy, export or download what you need.

Private & secure

Processing happens locally with JavaScript, Canvas and Web APIs.
No uploads, no storage, no account. Close the tab and it is gone.
Works on desktop and mobile in any modern browser.

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