Security

SHA-1 Generator

Compute a SHA-1 hexadecimal digest of UTF-8 text locally for legacy compatibility.

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SHA-1 hash

Choose “Generate SHA-1” to see the result here.

Processed locally in your browser. Inputs and results are not uploaded or saved by this page.

Hashes are one-way digests, not encryption. These fast hashes are not password-storage algorithms.
MD5 and SHA-1 are legacy algorithms with known collision weaknesses. Do not use them for new security-sensitive applications.

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What does this tool do?

Compute a SHA-1 hexadecimal digest of UTF-8 text locally for legacy compatibility. Inputs: Text. Outputs: SHA-1 hash.

How to use it

Enter the text to hash, preserving any spaces or line breaks. Choose “Generate SHA-1”, then copy the result if needed. Clear removes text, secrets, file selection and results, and restores option defaults.