How it works
- Drop your file or paste your content into the tool above.
- Adjust the options — every change updates the preview instantly.
- Download the result. Your file never leaves your browser.
Compute SHA-1, SHA-256, SHA-384, or SHA-512 of any text — output as hex or base64.
Output will appear here as you type.
Every conversion runs entirely in your browser using WebAssembly. There is no upload, no server-side processing, no analytics, and no cookies. Open DevTools → Network during the operation and you will see zero outbound traffic.