URL Encoder / Decoder
The URL Encoder / Decoder is a free online tool that converts URLs to and from percent-encoded format. URLs can only contain a limited set of characters — special characters like spaces, ampersands, question marks and non-ASCII characters must be encoded as percent sequences (e.g. a space becomes %20, & becomes %26) to be safely transmitted over the internet.
This dual-mode tool handles both encoding and decoding, making it indispensable for web developers building APIs, constructing query strings and debugging URL-related issues.
How to Encode or Decode a URL
- Paste your URL or text in the input field
- Click Encode to convert special characters to percent-encoding
- Click Decode to convert percent-encoded sequences back to readable characters
- Copy the result
Characters That Need Encoding
- Space → %20 (or + in query strings)
- & → %26
- # → %23
- = → %3D
- / → %2F (when used as literal slash, not path separator)
Common Use Cases
- Encoding query string parameters before adding them to a URL
- Decoding URL-encoded API responses for readability
- Debugging redirect URLs that contain encoded parameters
- Processing form data submissions with special characters
Free, instant, no login required.
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