Hash Generator (SHA-256, SHA-512)
Compute SHA-1, SHA-256, SHA-384, and SHA-512 hashes.
100% in your browser — nothing uploadedA hash is a fixed-length fingerprint of data: the same input always produces the same hash, and any tiny change produces a completely different one. Hashes are used to verify file integrity, compare values without storing them, and generate checksums.
This tool computes all four SHA variants simultaneously using the Web Crypto API built into your browser — the same audited implementation your browser uses for HTTPS. Your input never leaves your device, so it’s safe to hash sensitive values.
FAQ
Which SHA should I use?
SHA-256 is the standard choice for most purposes. SHA-1 is broken for security and should only be used for legacy compatibility (like Git object IDs).
Why no MD5?
MD5 is cryptographically broken and browsers don’t implement it natively. If you need it for a legacy checksum, dedicated tools exist, but avoid it for anything new.
Can a hash be reversed?
No — hashing is one-way. But common inputs can be guessed by brute force, which is why passwords need salted, slow hashes (bcrypt, Argon2), not plain SHA.