Crypto

15 tools

Free Token generator Generate random string with the chars you want, uppercase or lowercase letters, numbers and/or symbols.
Free Hash text Hash a text string using the function you need : MD5, SHA1, SHA256, SHA224, SHA512, SHA384, SHA3 or RIPEMD160
Free Bcrypt Hash and compare text string using bcrypt. Bcrypt is a password-hashing function based on the Blowfish cipher.
Free UUIDs generator A Universally Unique Identifier (UUID) is a 128-bit number used to identify information in computer systems. The number of possible UUIDs is 16^32, which is 2^128 or about 3.4x10^38 (which is a lot!).
Free ULID generator Generate random Universally Unique Lexicographically Sortable Identifier (ULID).
Free Encrypt / decrypt text Encrypt clear text and decrypt ciphertext using crypto algorithms like AES, TripleDES, Rabbit or RC4.
Free BIP39 passphrase generator Generate a BIP39 passphrase from an existing or random mnemonic, or get the mnemonic from the passphrase.
Free Hmac generator Computes a hash-based message authentication code (HMAC) using a secret key and your favorite hashing function.
Free RSA key pair generator Generate a new random RSA private and public pem certificate key pair.
Free Password strength analyser Discover the strength of your password with this client-side-only password strength analyser and crack time estimation tool.
Free PDF signature checker Verify the signatures of a PDF file. A signed PDF file contains one or more signatures that may be used to determine whether the contents of the file have been altered since the file was signed.
Free Classical ciphers Encrypt and decrypt with Caesar, ROT13, ROT47, Vigenère, Affine, Rail Fence and A1Z26 ciphers
Free Entropy Analyzer Calculate the Shannon entropy and byte frequency distribution of input text (UTF-8 bytes) to assess randomness
Free File Hash Checksum Compute MD5, SHA-1, SHA-256, SHA-512 and CRC32 locally and compare them against an expected checksum; files are never uploaded
Free X.509 Certificate Parser Paste a PEM-encoded X.509 certificate to inspect version, serial number, issuer, subject, validity, SAN, public key, fingerprints and key extensions
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