Generate SHA1, SHA256, and SHA512 hashes from your text
Simple text
Input: hello → SHA256: 2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824
JSON payload
Input: {"user":"ada","id":1} → hashes update immediately
Is this secure?
Hashes are calculated with the browser's Web Crypto API locally; input is not sent to a server.
Can I hash large text?
Reasonably large text works in-browser; extremely large files may be slow.
Which hash should I use?
SHA256 is a strong general default. SHA1 is weaker/legacy; SHA512 is stronger but longer.