File Hash Checker illustration

File Hash Checker

Computes SHA-256, SHA-1, SHA-384, SHA-512 and MD5 checksums of any file without uploading it, and compares the result against the checksum published by the download page — one green or red verdict instead of eyeballing 64 hex characters.

Runs 100% in your browser — your files never leave your device.

Notes

  • SHA-256 is the checksum to prefer; MD5 and SHA-1 are broken for security purposes but still fine for detecting accidental corruption.
  • Files are hashed in memory; files up to a gigabyte or so are fine, truly huge files may exceed browser limits.
  • Runs 100% in your browser — your files and data never leave your device.

Explore the idea

This interactive demo needs JavaScript.