SHA1
Compute the SHA-1 hash of any text input, historically used for checksums and digital signatures though now considered weak for security.
SHA-1
—SHA-256
—SHA-512
—Hashes are computed in your browser using the Web Crypto API. MD5 is not available as it's insecure.
About the SHA1
A SHA-1 hash generator computes the SHA-1 hash of any text input, historically used for checksums and digital signatures though now considered weak for security purposes.
How to use
1
Type or paste your text into the input field.
2
The SHA-1 hash is generated automatically.
3
Copy the resulting hash value.
Frequently asked questions
Is SHA-1 safe to use today?
For security-sensitive applications, no. SHA-1 has known collision vulnerabilities, and SHA-256 or stronger is recommended instead.
How long is a SHA-1 hash?
SHA-1 always produces a 160-bit hash, shown as a 40-character hexadecimal string.
Explore more tools in the Password & Security category.