Generate MD5, SHA-1, SHA-256, and SHA-512 hashes of any text or file, right in your browser. Compute an HMAC with a secret key, verify a downloaded file's checksum, and copy any digest — all client-side, nothing uploaded.
Where it runs
Your browser
Data retention
None — nothing is uploaded or stored
Maintained by
EasyTechLabs Engineering
🔒 Your text and files are hashed entirely on your device — nothing is uploaded, stored, or logged. Files are read into memory only to compute the digest and are never sent anywhere.
SHA-1, SHA-256, and SHA-512 are computed with the Web Crypto API (SubtleCrypto), your platform's native, audited implementation. MD5 uses a small pure-JavaScript implementation (Web Crypto does not offer it). Files are hashed as raw bytes, so a checksum matches the one published by the file's author. HMAC mode combines your message and a secret key into a keyed hash for authentication. Paste an expected hash into the verify box to confirm a download's integrity.
A hash is a fixed-length fingerprint of your input. The same input always produces the same hash; the smallest change produces a completely different one. Use SHA-256 for integrity checks — MD5 and SHA-1 are shown for legacy checksums only and are not safe against a determined attacker.
🔒 Runs entirely in your browser — nothing you paste, type, or drop is uploaded, stored, or logged.