Free Online URL Encoder Decoder Tool

The URL Encoder/Decoder tool converts text to and from percent-encoded format, which is the standard way to include special characters in URLs. URLs can only contain a limited set of characters, and any character outside this set must be percent-encoded for the URL to work correctly.

Percent-encoding (also called URL encoding) replaces unsafe characters with a percent sign (%) followed by two hexadecimal digits representing the character's ASCII code. For example, a space becomes %20, an ampersand becomes %26, and special characters like accented letters are encoded to their UTF-8 byte representations.

Our tool works in both directions. The encoder converts readable text into URL-safe format, while the decoder converts percent-encoded strings back to readable text. This is essential for web developers building URLs with query parameters, debugging encoded URLs, and working with API endpoints.

Common use cases include encoding query string parameters, encoding special characters in file paths, making non-ASCII characters URL-safe, and debugging URLs that appear as garbled percent-encoded strings. The tool handles all standard URL encoding rules and supports full Unicode character encoding.

The tool is particularly useful when building URLs programmatically, sharing links with special characters, or debugging API requests and responses that contain encoded data.