Hashes, HMAC, checksums, encryption and keys.
Generate an MD5 hash in your browser.
Generate SHA-1, SHA-256, SHA-384 or SHA-512 hashes.
Hash a file without uploading it.
Generate HMAC signatures with a secret key.
Calculate a CRC32 checksum.
Generate and verify bcrypt password hashes.
Encrypt and decrypt text with AES-GCM.
Generate an RSA key pair in the browser.
Convert keys and certificates between PEM and DER.
Inspect the fields of a PEM certificate.