File Hash Checker

Files are read and hashed locally via Web Crypto. The bytes never leave your device — verify in DevTools → Network.

Algorithm:

Drop a file here, or click to choose No file selected

Digest

Verify against expected hash (optional)

Drop in a file to compute its cryptographic checksum, then paste the publisher's expected hash to confirm the download wasn't corrupted or tampered with. SHA-256 is the usual choice; SHA-1 is offered for legacy checksums only.

Hashing runs entirely in your browser through the Web Crypto API — the file is never uploaded, so it's safe for private or sensitive files.