URL Encoder/Decoder
Developer ToolsEncode and decode URLs with support for batch processing. Includes full URL parsing with component breakdown.
How to use URL Encoder/Decoder
- 1Enter your input in the text area above
- 2Click the action button to process your data
- 3View the result and copy it to your clipboard
Common Use Cases
Query Parameters
Encode URL parameters for web requests.
Email Links
Encode special characters in mailto links.
API Requests
Encode data for REST API query strings.
Form Data
Encode form submissions for URL parameters.
Frequently Asked Questions
Why do URLs need encoding?
URLs can only contain a limited set of characters (ASCII). Special characters like spaces, Chinese characters, and symbols must be percent-encoded (e.g., space becomes %20) to be valid in URLs.
What is the difference between encodeURI and encodeURIComponent?
encodeURI encodes a full URL and preserves URL structure characters (like /, ?, &). encodeURIComponent encodes a single component (like a query parameter value) and encodes ALL special characters. Use encodeURIComponent for parameter values.
Does URL encoding support non-ASCII characters?
Yes. URL encoding converts non-ASCII characters (like Chinese, Japanese, emoji) into their UTF-8 byte representation, then percent-encodes each byte. For example, 'δΈζ' becomes '%E4%B8%AD%E6%96%87'.
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