Generate cryptographic hash values from any text in seconds. This hash generator supports SHA-1, SHA-256, SHA-384, and SHA-512 — all computed locally in your browser using the native Web Crypto API. Nothing is sent to a server.

Hashing is used to verify data integrity, store passwords securely, and create digital fingerprints of files or messages. SHA-256 is the most widely used algorithm in TLS certificates, Bitcoin, and Git commit IDs.

What you can do with this tool

Generate SHA-256 hash from any text string — the most widely recommended algorithm
Generate SHA-512 for maximum hash length and collision resistance
Generate legacy SHA-1 for compatibility testing (not recommended for security)
Compare hash outputs to verify that two inputs are identical
All computation runs in-browser via crypto.subtle.digest() — 100% private

How to use the Hash Generator

Type or paste your text into the input field
Select the algorithm: SHA-1, SHA-256, SHA-384, or SHA-512
The hash is generated instantly as you type
Click Copy to copy the hash value to your clipboard

FAQ

What is the difference between SHA-256 and SHA-512?

Both are secure, but SHA-512 produces a 512-bit (128-character) hash vs. SHA-256's 256-bit (64-character) output. SHA-512 may be faster on 64-bit hardware. For most use cases, SHA-256 is the standard choice.

Can I reverse a hash to get the original text?

No. Cryptographic hashes are one-way functions — you cannot reverse a SHA-256 hash. That’s what makes them useful for integrity checks and password storage.

Is MD5 supported?

MD5 is not available via the Web Crypto API and is considered cryptographically broken. This tool uses the browser’s native secure algorithms: SHA-1, SHA-256, SHA-384, and SHA-512.