SHA-1 Hash Generator
Generate SHA-1 hashes instantly. 160-bit output, runs entirely in your browser.
This tool runs entirely in your browser. No data is ever sent to any server.
SHA-1 FAQ
What is SHA-1?
SHA-1 (Secure Hash Algorithm 1) produces a 160-bit hash value. It was designed by the NSA and published by NIST in 1995.
Is SHA-1 secure?
SHA-1 is deprecated for security use. Google demonstrated a practical collision attack (SHAttered) in 2017. Major browsers and certificate authorities have phased it out.
What should I use instead?
Use SHA-256 or SHA-512 for general-purpose hashing. For password storage, use Argon2id, bcrypt, or scrypt which are designed to be slow and memory-hard.
Where is SHA-1 still used?
SHA-1 remains in legacy systems, Git commit hashes (though Git is migrating to SHA-256), and some non-security checksum applications.
All Hash Algorithms
Generate and verify hashes with any of our supported algorithms
Verify integrity, then share securely
Hashed your data for verification? When it's time to share credentials, use CredenShare for AES-256 encrypted delivery with automatic expiration.