Crypto

Free online Caesar cipher encryption and decryption tool. Supports custom alphabets and shift offsets. Ideal for cryptography learning and fun.

Customize character types and length to generate strong random passwords and secure your accounts.

Encrypt or decrypt text using the classic polyalphabetic substitution algorithm. Ideal for cryptography learning and testing.

Online CRC16 checksum tool to calculate 16-bit cyclic redundancy check values for text, Hex, and Base64 data to verify data integrity.

Translate text to Morse code and vice versa. Features custom dot/dash symbols and audio playback for learning and communication.

Calculate the NTLM hash of any string. Supports plaintext, Hex, and Base64 inputs, outputting results in Hex and Base64 formats.

Compare AES inputs and outputs using raw keys, configurable modes and padding for learning or compatibility checks.

Generate visually identical PNG/JPG images with a brand new MD5 hash to bypass duplicate detection or force cache updates.

Enter text and instantly calculate its CRC32 value as an eight-character uppercase hexadecimal checksum.

Generate MD5 hash values for any data. Ideal for data integrity checks, file verification, and more.

Convert integers between binary, octal, decimal, and hexadecimal. Ideal for programming and mathematical calculations.

Identify text file character encoding formats to fix garbled text. Supports multi-language content analysis.

Free online tool for two-way conversion between text and ASCII (decimal) codes. Ideal for programming, debugging, and data transmission.

Free online tool to encode JavaScript into the AAEncode obfuscated format or decode AAEncode strings back to readable JS code.

Calculate an uploaded file's CRC32 checksum locally in your browser, with chunked processing and progress feedback for files up to 100 MB.

Convert binary data to uuencoded text and vice versa online. Supports full format parsing, ideal for processing legacy emails and files.

Convert plaintext, Hex, or Base64 strings into LM hashes. Get instant Hex and Base64 outputs with uppercase and lowercase formatting options.

Online hash generator and verification tool supporting SHA1, SHA256, and SHA512 algorithms, featuring advanced salting and multi-round iteration options.

Convert text to and from Base64 strings. Supports standard and URL-safe encoding, and is compatible with UTF-8 and multiple character sets.

A tool for bidirectional conversion between text and Unicode escape sequences (such as \uXXXX format).