Generate cryptographic hashes instantly. Supports MD5, SHA-1, SHA-256, SHA-384, SHA-512. All processing happens in your browser — nothing is sent to any server.
MD5128-bit (not cryptographically secure)
SHA-1160-bit (deprecated for security)
SHA-256256-bit ✅ Recommended
SHA-384384-bit
SHA-512512-bit
🔍 Hash Comparison
What is a hash?
A hash function converts any input into a fixed-size string of characters. It's one-way (can't be reversed) and deterministic (same input always produces same output). Used for data integrity, password storage, and digital signatures.
Which should I use? SHA-256 is the standard choice for most applications. MD5 and SHA-1 are broken (collisions found) — use only for checksums, not security. SHA-512 for maximum security.