URL Encode / Decode
Encode text to percent-encoding (%XX) or decode it back.
Input Data
欲編碼或解碼的文字。
Results
%E8%A8%88%E7%AE%97%E4%B8%BB%E7%BE%A9%20calculatorism
encode done
At a glance:Percent-encoding turns non-alphanumeric characters into % followed by two hex digits so URLs and parameters transmit safely.
Formula
Encode: special char → %XX
Decode: %XX → original char
How to Use
- Enter text and choose encode or decode.
- Read the result.
FAQ
When do I need URL encoding?
When putting spaces, Chinese or symbols into a URL or query parameter, to avoid parsing errors.
How is it different from Base64?
URL encoding only escapes special chars and stays readable; Base64 rewrites the whole payload into printable chars.
Related Tools
References
Content review: Calculatorism Science Team.