File Hash Checker (SHA-1, SHA-256, SHA-384, SHA-512)
Drop any file to compute its SHA-1, SHA-256, SHA-384, and SHA-512 hashes in your browser. Verify downloads and detect tampering without uploading.
Runs 100% in your browser — nothing is uploaded.
Drop a file here, or
File never leaves your browser. Hashes computed with the Web Crypto API.
Frequently asked
Does my file get uploaded?
No. The file stays entirely on your device. Hashes are computed with the browser Web Crypto API — the same code path used for HTTPS handshakes.
How do I verify a downloaded file?
Compare the SHA-256 hash shown here against the "sha256sum" or "checksum" value published by the file's author. If they match, the file was not tampered with in transit.
Why no MD5 in this tool?
MD5 has been cryptographically broken since 2004 and is deprecated for integrity checks. Most modern software distributions publish SHA-256 instead. Use the text-based Hash Generator if you need MD5 for legacy compatibility.