URL Encoder/Decoder Online - EXUtil Extended Utilities

Free online URL encoder and decoder. Supports both encodeURIComponent and encodeURI modes for handling special characters and non-ASCII text in URLs.

How to use

  1. Paste or import the content you want to process.
  2. Choose an available action and run the tool.
  3. Review the result, then copy or download the output.

Frequently asked questions

When to use encodeURIComponent?
Use encodeURIComponent when encoding URL parameter values. It encodes more characters including &, =, ? and other special characters.
What's the difference between encodeURI and encodeURIComponent?
encodeURI is for encoding complete URLs and preserves URL special characters (like :, /, ?); encodeURIComponent is for URL parameters and encodes almost all non-alphanumeric characters.
Why do Chinese characters need URL encoding?
URL standards only support ASCII characters. Chinese characters are Unicode and must be converted to UTF-8 byte sequences, then percent-encoded.
How are spaces represented in URLs?
Spaces can be encoded as %20 (standard) or + (form data). encodeURIComponent encodes spaces as %20.
What if decoding fails?
Check that the input format is correct and uses valid percent-encoding (% followed by two hex digits). Malformed URI usually results from incomplete encoding sequences.

References

Technical standards and official documentation related to this tool.