SHA-1 Hash Generator
Generate the SHA-1 hash of any text using the native Web Crypto API. 40-character hex hash, processed locally.
About SHA-1
SHA-1 (Secure Hash Algorithm 1) is a cryptographic hash function that produces a 160-bit digest (40 hexadecimal characters). It was developed by the NSA and published by NIST in 1995.
Although SHA-1 is deprecated for cryptographic use (vulnerable to collision attacks since 2017), it is still widely found in legacy systems, version control (Git uses SHA-1 internally) and non-critical file integrity verification.
For new projects, prefer SHA-256 or SHA-512 which offer much more security.
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