Multi Hash Generator
Compute nine common hashes of a text in one go. Everything runs in your browser, so passwords and secrets never leave your device.
- Runs in your browser
- Free, no sign-up
About this tool
A hash function turns any input into a fixed-length fingerprint. Change a single character and the fingerprint changes completely, which is why hashes are used to verify downloads, deduplicate files, index data and sign messages. The Multi Hash Generator computes the most common algorithms at once so you can compare a value against whatever format a vendor published.
Modern browsers ship a native WebCrypto implementation of the SHA family; this page uses it where available and falls back to audited pure-JavaScript code for CRC32, MD2, MD4 and MD5, with heavy inputs processed in a background worker. Results match the output of PHP hash(), OpenSSL and coreutils byte for byte.
What this tool gives you
Nine algorithms
CRC32, MD2, MD4, MD5, SHA-1, SHA-224, SHA-256, SHA-384 and SHA-512 side by side.
Fast and local
SHA digests use the browser WebCrypto API; the rest run in a Web Worker so the page stays responsive.
Copy any line
Each hash has its own copy button; copy all nine at once if you prefer.
Frequently asked questions
Which hash should I use today?
SHA-256 is the safe default for integrity checks and signatures. MD5 and SHA-1 are fine for non-security checksums but are broken against collisions.
Why does my result differ from another site?
Probably a trailing newline or different text encoding. This tool hashes exactly what you type, encoded as UTF-8, without adding a line break.
Can I hash a file?
Not on this page, which hashes text. A terminal command such as sha256sum file.iso is the quickest way to hash a download.
Are the hashes computed on your server?
No. Everything is JavaScript in your browser, verified against OpenSSL test vectors, so secrets never travel over the network.