Generate the SHA-1 hash of any input instantly. SHA-1 produces a 40-character hexadecimal digest, historically used in Git, TLS and integrity verification.
You cannot recover the original input from a hash.
bcrypt or argon2 for passwords; SHA-256 for integrity.
Compare digests for integrity; prefer slow algorithms for secrets.
Generate the SHA-1 hash of any input instantly. SHA-1 produces a 40-character hexadecimal digest, historically used in Git, TLS and integrity verification.
Enter any text and the SHA-1 digest appears immediately.
Grab the 40-character hash with one click.
| Input | SHA-1 |
|---|---|
| hello | aaf4c61ddcc5e8a2dabede0f3b482cd9aea9434d |
| Hello | f7ff9e8b7bb2e09b70935a5d785e0cc5d9d0abf0 |
It is completely free, private and requires no signup.
Use the tool nowYes, notably in Git for object identifiers, but it is deprecated for security due to collision attacks.
No. Prefer SHA-256 or SHA-3 for new applications.
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