Enter text in the input box. The SHA-256 hash is computed in real-time. Toggle between lowercase and uppercase output.
Shows input/output character counts. One-click copy. Client-side encryption - data never leaves your device.
Yes, completely free. No registration, no download required. Everything runs locally in your browser.
Absolutely not. This is a purely client-side application. All processing happens locally in your browser β your data never leaves your device.
Defined by NIST FIPS 180-4, SHA-256 outputs a 256-bit (32-byte) hash value. Use cases include: HTTPS/TLS certificate signing, blockchain (Bitcoin uses SHA-256 for proof-of-work), Git (commit IDs use SHA-1, migrating to SHA-256), file integrity verification, digital signatures, and password storage (with salting). As of today, no collision attack against SHA-256 is known.