Type or paste text to instantly generate its MD5, SHA-1, SHA-256 and SHA-512 hashes — all computed locally in your browser.
This free online hash generator instantly computes the MD5, SHA-1, SHA-256 and SHA-512 hash of any text you enter. Hashes like these are commonly searched for by developers verifying a file checksum, comparing whether two pieces of data are identical without exposing the data itself, or working with password/token systems that store a hash instead of the raw value.
SHA-1/256/512 are computed using your browser's own built-in, audited Web Crypto API, and MD5 with a small local JavaScript implementation — every hash is generated on your device, with nothing ever sent to a server.
No — SHA-1/256/512 are computed using your browser's built-in Web Crypto API, and MD5 with a small local JavaScript function. Nothing is ever sent to a server.
MD5 and SHA-1 are fast but no longer considered secure against determined attacks — they're still fine for checksums (verifying a file wasn't corrupted). For anything security-related (passwords, signatures), use SHA-256 or SHA-512.
This tool currently hashes text input. For file checksums, paste the file's text content, or use this to verify short strings/tokens/passwords.