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Online Crypto Tools

World's simplest crypto utilities

Online crypto tools is a collection of useful browser-based cryptography utilities. All crypto tools are simple, free and easy to use. There are no ads, popups or other garbage, just crypto utilities that work right in your browser. And all utilities work exactly the same way — load the data, encrypt the result. Created by team Browserling.
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All crypto tools
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Quickly encrypt data using the ROT13 substitution cipher.
Quickly decrypt data that was encrypted with ROT13.
Quickly encrypt data using the ROT47 substitution cipher.
Quickly undo ROT47 encryption and find the original message.
Quickly count letters in the given text and print their distribution.
Quickly count words in the given text and print their distribution.
Coming soon These crypto tools are on the way
ROT-2 Encrypt/Decrypt
Encrypt and decrypt numbers using ROT2 cypher.
ROT-5 Encrypt/Decrypt
Encrypt and decrypt numbers using ROT5 cypher.
ROT-n Encrypt/Decrypt
Encrypt and decrypt numbers using custom ROT cypher.
Base26 Encode/Decode
Encode and decode data to/from base26 encoding.
Base32 Encode/Decode
Encode and decode data to/from base32 encoding.
Base58 Encode/Decode
Encode and decode data to/from base58 encoding.
Base62 Encode/Decode
Encode and decode data to/from base62 encoding.
Base64 Encode/Decode
Encode and decode data to/from base64 encoding.
ASCII85 Encode/Decode
Encode and decode data to/from ASCII85 encoding.
XOR Encrypt/Decrypt
Encrypt and decrypt data using the XOR algorithm.
AES Encrypt/Decrypt
Encrypt and decrypt data using the AES algorithm.
RC2 Encrypt/Decrypt
Encrypt and decrypt data using the RC2 algorithm.
RC4 Encrypt/Decrypt
Encrypt and decrypt data using the RC4 algorithm.
RC5 Encrypt/Decrypt
Encrypt and decrypt data using the RC5 algorithm.
RC6 Encrypt/Decrypt
Encrypt and decrypt data using the RC6 algorithm.
Akelarre Encrypt/Decrypt
Encrypt and decrypt data using the Akelarre algorithm.
Ake98 Encrypt/Decrypt
Encrypt and decrypt data using the Ake98 algorithm.
DES Encrypt/Decrypt
Encrypt and decrypt data using the DES algorithm.
Triple DES Encrypt/Decrypt
Encrypt and decrypt data using the 3DES algorithm.
Rabbit Encrypt/Decrypt
Encrypt and decrypt data using the Rabbit cipher.
Blowfish Encrypt/Decrypt
Encrypt and decrypt data using the Blowfish cipher.
Twofish Encrypt/Decrypt
Encrypt and decrypt data using the Twofish cipher.
KASUMI Encrypt/Decrypt
Encrypt and decrypt data using the KASUMI cipher.
Serpent Encrypt/Decrypt
Encrypt and decrypt data using the Serpent cipher.
Solitaire Encrypt/Decrypt
Encrypt and decrypt data using the Solitaire cipher.
Break a Substitution Cipher
Decode text encrypted with a simple substitution cipher.
Generate Random Numbers
Print a list of random numbers.
Generate Primes
Print a list of prime numbers.
Generate Twin Primes
Print a list of twin prime numbers.
Generate Cousin Primes
Print a list of cousin prime numbers.
Generate Prime Triplets
Print a list of prime triplets.
Generate Random Primes
Print a list of random prime numbers.
Check Prime Numbers
Check if the given numbers are prime numbers.
Create Random Passwords
Generate one or more random passwords.
Replace Message Alphabet
Rewrite the given message with a new alphabet.
Calculate Text Entropy
Compute the Shannon entropy of the given message.
Generate High Entropy Data
Create text with high Shannon entropy.
Generate Low Entropy Data
Create text with low Shannon entropy.
Analyze Random Data
Perform statistical analysis of random data.