Message Digester
Generate cryptographic hashes — MD5, SHA-1, SHA-256, SHA-384, SHA-512 — from text input or file uploads, all computed in your browser.
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What to expect
Built for developers
Compute cryptographic hash digests from text or file input using MD5, SHA-1, SHA-256, SHA-384, and SHA-512 algorithms.
Runs client-side. Your data never leaves your browser.
No ads, no trackers, no popups. Pure focus.
Paste code or upload files. Both modes supported.
Share output with teammates via a permanent link.
Adapts to your system preference automatically.
Fully responsive. Works on any screen size.
About this tool
OpenFormatter's Message Digester generates cryptographic hash digests online for free. Supports MD5, SHA-1, SHA-256, SHA-384, and SHA-512 algorithms. Works with text input and file uploads (any size). Shows hex-encoded and Base64-encoded output. Useful for verifying file integrity, generating checksums, and password hashing education. All processing happens in your browser using the Web Crypto API — your data never leaves your device.