All four common hashes at once
Type text or drop a file and get its MD5, SHA-1, SHA-256, and SHA-512 digests side by side, each with a copy button. The most common use is verifying downloads: compare the computed hash with the one the publisher lists, and a match proves the file arrived intact.
Files are hashed locally — nothing is uploaded, so it's safe to verify private documents and there's no size limit beyond your device's memory.
Frequently asked questions
Is my text or file uploaded to compute the hash?
No. SHA hashes use your browser's built-in WebCrypto API and MD5 runs in local JavaScript — the data never leaves your device, which is the whole point when verifying sensitive files.
Which hash algorithm should I use?
SHA-256 for anything new — checksums, integrity verification, fingerprints. MD5 and SHA-1 are cryptographically broken but still needed to check legacy checksums published alongside downloads.
How do I verify a downloaded file?
Drop the file here, then compare the computed hash against the checksum published on the download page. If they match exactly, the file wasn't corrupted or tampered with in transit.