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SHA-1 hash
Crypto and hashing //en/tools/sha1
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Loading tool
The tool is loaded only when you open it.
All processing for this tool happens in your browser. Your input is not sent to a server.
About this tool
A browser-local sha-1 hash utility. Compute a SHA-1 digest with the browser Web Crypto API.
Common uses
- Check a digest required by a legacy system or file format.
- Generate a SHA-1 compatibility value locally in the browser.
How to use it
- 1.Enter or paste text in the input box.
- 2.Review the SHA-1 result and copy it if needed.
Limits and notes
- SHA-1 is unsuitable for passwords and digital signatures; use it only for compatibility checks.
Frequently asked questions
Is the input uploaded to a server?
No. The text is processed only in the current browser.
Can SHA-1 be used in a new security design?
No. Keep it for legacy compatibility and use SHA-256 or stronger for new designs.