URL Encoder / Decoder

URL encoding (also known as percent-encoding) replaces unsafe or reserved characters in a URL with a percent sign (%) followed by the two-digit hexadecimal representation of the character's ASCII/UTF-8 code point. For example, a space becomes %20 and an ampersand becomes %26. This process is essential because URLs can only contain a limited set of characters from the ASCII character set. Characters like spaces, quotes, angle brackets, and non-ASCII characters (like Chinese, Korean, or emoji) must be encoded to be safely transmitted in URLs. Rapidix uses the browser's native encodeURIComponent() function, which encodes all characters except A-Z, a-z, 0-9, and the unreserved characters - _ . ~ as defined in RFC 3986. For decoding, decodeURIComponent() reverses the process, converting percent-encoded sequences back to their original characters. The tool processes input in real-time using React's onChange event, providing instant results with zero network latency.

1. Select the mode: "Encode" to convert a regular string to URL format, or "Decode" to convert a URL-encoded string back. 2. Paste or type your text in the input area. 3. The result appears instantly in the output area. 4. Click "Copy" to copy the result to your clipboard. 5. The 2MB input size limit ensures smooth browser performance.

URL encoding is necessary in several scenarios: Query Parameters: When passing user input as URL query parameters, special characters must be encoded to prevent breaking the URL structure. API Requests: RESTful APIs often require URL-encoded parameters in GET requests. Form Submissions: HTML forms with method="GET" automatically URL-encode form data. Redirect URLs: When embedding one URL inside another (e.g., OAuth redirect URIs), the inner URL must be fully encoded. Internationalized URLs: Non-ASCII characters in URLs (like Japanese or Korean text) must be percent-encoded for universal compatibility.