Encoders / Decoders
Encode and decode text, URLs, Base64, Hex, JWT tokens, HTML entities, and more with our free online encoder/decoder tools. All encoding and decoding runs locally in your browser for maximum privacy. Ideal for debugging API payloads, inspecting JWT claims, URL encoding parameters, and working with legacy character encodings.
Base64 Encoder / Decoder
Encode and decode Base64 text data
JWT Decoder
Decode a JWT header, payload and signature
URL Encoder / Decoder
Encode or decode URL entity characters
HTML Entity Encoder / Decoder
Encode and decode HTML entities
Unicode Converter
Convert characters to Unicode code points and vice versa
String Obfuscator
Obfuscate strings using various encodings
Base64 Image Encoder / Decoder
Encode and decode Base64 image data
Certificate Decoder
Decode SSL/TLS certificates
GZip Compress / Decompress
Compress or decompress text with GZip
Quoted-Printable Codec
Encode or decode text using quoted-printable format (RFC 2045)
Hex to ASCII Converter
Convert between hexadecimal and ASCII text formats
Base58 Encoder / Decoder
Encode and decode text using Base58 encoding
GZip Processor
High-performance GZip compression
Base32 Encoder / Decoder
Encode and decode Base32 strings
Bzip2 Decompressor
Decompress bzip2 files and encoded data
Base62 Encoder / Decoder
Encode and decode Base62 strings