Hash Generator
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from any text instantly in your browser.
How to use this tool
A hash function takes any input text and produces a fixed-length string of characters — a “digest” — that acts as a fingerprint of that input. The same input always produces the same hash, and even a one-character change in the input produces a completely different hash. Hashes are used to verify file integrity (comparing a published checksum against a downloaded file), store password verification data without storing the password itself, and detect duplicate or tampered content.
For example, hashing the text “hello” produces MD5 5d41402abc4b2a760071be3e1e34f2d and SHA-256 2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824 — change even one character and every algorithm's output changes completely.
Type or paste your text into the box below. The MD5, SHA-1, SHA-256, and SHA-512 hashes update automatically as you type. Click Copy next to any hash to copy it to your clipboard.
FAQ
Is this hash generator free to use?
Yes, this tool is completely free to use with no limits on how often you can use it.
Does my text get uploaded anywhere?
No. SHA-1, SHA-256, and SHA-512 are computed using your browser's built-in Web Crypto API, and MD5 is computed with a small local implementation since Web Crypto doesn't support it. Nothing is sent to a server.
Why include MD5 and SHA-1 if they're not secure?
MD5 and SHA-1 are no longer considered secure for cryptographic purposes, but they're still widely used for checksums and legacy compatibility, so we include them alongside the stronger SHA-256 and SHA-512 algorithms.
Can I reverse a hash back to the original text?
No. Hashing is a one-way function — there's no mathematical way to recover the original input from its hash. That's exactly what makes hashes useful for things like password verification: the hash can be checked without ever storing the recoverable password.
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