Encode / decode

How to encode or decode text

Choose Encode or Decode, pick a format and paste your text. If the input looks like Base64, URL encoding, entities, escapes, hex or binary, a bar offers to decode it in one click. Swap moves the result back to the input to reverse the operation.

Formats

• Base64 works on the UTF-8 bytes of your text, so accents and emoji survive. Decoding accepts both the standard and URL-safe alphabets, with or without padding.
• URL: Component encodes everything except letters, digits and -_.!~*'(), for query values; Full URL leaves :/?&=# alone.
• HTML entities escapes & < > " '; decoding understands named, decimal and hex entities.
• Unicode escapes writes é or \u{1F600}; decoding also reads \x41 and \n.
• Hex and binary show the UTF-8 bytes; ROT13 rotates letters by 13 places.

Invalid input, such as a stray character in Base64 or a broken % sequence, produces an error that says what is wrong and where.

FAQ