Hash Generator
Generate SHA-1, SHA-256, and SHA-512 cryptographic hashes instantly. Your data never leaves your browser.
About Cryptographic Hash Functions
A cryptographic hash function takes an input and produces a fixed-size string of characters. The same input always produces the same hash, but even a tiny change in input creates a completely different hash.
Hash Algorithms Compared
- SHA-1 (160-bit) — Legacy algorithm, not recommended for security-critical applications
- SHA-256 (256-bit) — Widely used, excellent security, standard for most applications
- SHA-512 (512-bit) — Highest security, used when maximum protection is needed
Common Use Cases
- File Integrity — Verify downloads haven't been tampered with
- Password Storage — Store password hashes instead of plaintext
- Digital Signatures — Part of certificate and signature verification
- Data Deduplication — Identify identical files by their hash