Encoding & Cryptography
Base64, URL percent-encoding, cryptographic hashes, token decoders, and binary/hex tools.
Base64 Encoder / Decoder
Convert text, UTF-8 strings, and binary data into standard or URL-safe Base64 format with live swap and copy.
URL Encoder / Decoder
Convert unsafe URI characters into percent-encoded ASCII bytes supporting encodeURI and encodeURIComponent modes.
Cryptographic Hash Generator
Compute cryptographic hashes and message digests using the Web Crypto API with instant hex and base64 output.
Hash Identifier
Analyze unknown hash strings to determine likely algorithms (MD5, SHA-1, SHA-256, bcrypt, NTLM, Argon2, etc.).
JWT Decoder
Inspect JSON Web Tokens client-side with expiration time checking, claim breakdowns, and algorithm analysis.
UUID / GUID Generator
Fast, secure UUID generator utilizing window.crypto with bulk batch mode and uppercase/lowercase formatting.
Hex ↔ Text Converter
Bidirectional converter supporting UTF-8 multi-byte characters, custom byte delimiters (space, comma, 0x), and ASCII decoding.
Binary ↔ Text Converter
Translate plain text into 8-bit binary byte strings with configurable spacing and bit grouping.