Type some text or choose a file and get the SHA hashes. Your data never leaves this computer.
Only the contents of the JWT are read. The signature is not verified, so this tool does not prove that a token is genuine.
Enter Unix seconds or milliseconds, ISO 8601, or a date like "2026-09-30 14:30".
Type text or choose a file. SHA-1, SHA-256, SHA-384 and SHA-512 are computed. The file never leaves your computer.
No. The secure digest functions in browsers support the SHA family: SHA-1, SHA-256, SHA-384 and SHA-512.
No. The file never leaves your computer and the hash is computed in your browser. Files up to 200 MB can be chosen.
No. A hash is one-way and cannot be reversed. It is used to check whether a file has changed.