Encoding
Base64, hashes, JWT, UUID and passwords. 11 free online tools, all running locally in your browser.
Base64 Encoder & DecoderFree online Base64 encoder and decoder with correct UTF-8 Chinese support and URL-safe format option.
Random Password GeneratorGenerate strong random passwords free, customize length and character sets, and check the strength of existing passwords. Everything runs locally.
URL Encoder / DecoderFree URL encoder and decoder: component mode, whole-URL mode and form urlencoded mode, turning CJK and special characters into percent-encoding and back.
UUID GeneratorFree UUID generator: create 1 to 100 UUID v4 values at once, with uppercase, hyphen-free and brace-wrapped options, using browser-grade cryptographic randomness.
Hash CalculatorFree hash calculator: compute MD5, SHA-1, SHA-256, SHA-384 and SHA-512 in one pass, UTF-8 aware for CJK text, all locally in your browser.
JWT DecoderFree online JWT decoder: inspect the header and payload, see issued-at and expiry times plus validity status. Decoding is local, so your token never leaves the browser.
URL ParserSplit any URL into scheme, host, port, path, fragment and query parameters, with automatic decoding and duplicate keys flagged.
Base32 Encoder / DecoderConvert text to and from Base32 with the RFC 4648 alphabet, optional = padding stripped, and full UTF-8 support.
Morse Code ConverterEncode text to Morse or decode Morse back to text, covering letters, digits and common punctuation, with slashes between words.
Caesar CipherShift the whole alphabet to encrypt or decrypt, 1 to 25, keeping case, with non-letters kept or blanked.
Hex ConverterText to hex and hex back to text in UTF-8, with space separators or a 0x prefix.