Quick Examples
About URL Encoding
URL encoding (percent-encoding) converts characters into a format that can be safely transmitted over the Internet. Special characters are replaced with a '%' followed by their hexadecimal value.
How to Encode and Decode URLs
- 1
Enter your text or URL
Paste the text you want to encode or the encoded URL you want to decode into the input field. The tool accepts any string including full URLs, query parameters, or individual text values. - 2
Select encode or decode mode
Click the Encode button to convert special characters to percent-encoding, or click the Decode button to convert percent-encoded values back to readable text. - 3
Review the result
The converted output appears instantly in the result panel. Verify that special characters, spaces, and non-ASCII characters have been correctly transformed. - 4
Copy or swap the output
Click the Copy button to copy the result to your clipboard. Use the Swap button to move the output back into the input field for further encoding or decoding.
Common Use Cases
API Query Parameters
Debugging Encoded URLs
Sharing Links with Special Characters
Form Data Handling
Why use URL Encoder Decoder?
URL encoding, also called percent-encoding, is a mechanism for converting characters into a format that can be safely placed inside a Uniform Resource Locator. Every time you see %20 instead of a space or %26 instead of an ampersand in a browser's address bar, you are looking at URL encoding in action. This process is defined by RFC 3986 and is fundamental to how the web transmits data through URLs.
Our free URL Encoder Decoder processes everything directly in your browser with zero server uploads, making it safe for encoding sensitive data such as API keys or authentication tokens. Whether you are constructing API calls, debugging encoded query strings, or preparing links that contain non-English characters, this tool handles it instantly. You can also use our Base64 Encoder for binary-to-text encoding, the JSON to URL Params converter to turn JSON objects into query strings, or the URL Params to JSON tool for the reverse operation.
For developers working with web APIs, URL encoding is a daily necessity. Query parameters, form data, and redirect URLs all require proper encoding to prevent injection vulnerabilities and broken requests. Combine this tool with the cURL to Code converter when building HTTP requests, or use the Regex Tester to validate URL patterns before encoding them.
How It Compares
Unlike many online URL encoding tools that send your input to a remote server for processing, FindUtils URL Encoder Decoder runs entirely client-side using JavaScript. This means your data never leaves your device, which is critical when working with tokens, passwords, or proprietary API parameters. The tool supports both standard percent-encoding (RFC 3986) and full Unicode character encoding via UTF-8 byte conversion.
Compared to using browser developer consoles or command-line utilities like Python's urllib.parse.quote(), a dedicated online tool provides a faster workflow for quick encoding tasks. There is no need to open a terminal, remember function names, or install dependencies. FindUtils also displays the result immediately with a one-click copy button, making it the fastest path from raw text to an encoded URL string.