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About Checksum Calculator

Calculate file checksums using MD5, SHA-1, and SHA-256 algorithms. Verify file integrity after downloads or transfers. Essential for security verification.

How to Use

  1. 1Upload or drag file
  2. 2Select hash algorithm
  3. 3View calculated checksum
  4. 4Compare with expected value

Key Features

  • MD5 checksums
  • SHA-1 checksums
  • SHA-256 checksums
  • Compare mode
  • Copy to clipboard

Common Use Cases

Verify downloaded filesCheck file integrityDetect file corruptionSecurity verificationBackup validation

Privacy First

All processing happens directly in your browser. Your files never leave your device and are never uploaded to any server.

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