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Encode and decode data formats
Base64, URL, JWT, HTML entities, and Unicode. Encode and decode data with ease.
Encode and decode Base64 strings
Encode and decode URL components
Decode and inspect JSON Web Tokens
Encode and decode HTML entities
Convert between text and Unicode escape sequences
Base64, URL, JWT, HTML, Unicode
Encode and decode in both directions
Decode and inspect JWT tokens
All processing in your browser
Export results easily
Free to use, no account needed
Encode data for API requests
Debug JWT tokens
Escape HTML entities
Encode binary data as text
Yes! All encoding/decoding happens in your browser. Your data never leaves your device.
Yes! The JWT decoder shows the header and payload. Note: it cannot verify signatures.
Base64 is an encoding scheme that converts binary data to ASCII text, useful for transmitting data over text-based protocols.
All our tools are free to use, with no signup required. Your data never leaves your browser.