Type or paste text and the tool computes MD5, SHA-1, SHA-256 and SHA-512 digests at once, showing each hex digest ready to copy for comparison or verification.
Use SHA-256 or SHA-512 for security. MD5 and SHA-1 are fast but broken for security and suit only non-critical checksums.
No — cryptographic hashes are one-way. You cannot recover the input from the digest; you can only re-hash and compare.
No — hashing runs entirely in your browser using the Web Crypto API, so your text never leaves your device.