URL Encode / Decode
Safely escape special characters in URLs or decode them back to readable text.
What the URL Encoder/Decoder Does
The URL Encode/Decode tool is a free online developer utility that safely escapes special characters in web addresses, or reverses that process to make an encoded URL human-readable. Also known as "percent-encoding," this process translates characters that have special meaning in a URL (like spaces, question marks, and ampersands) into a safe format that web servers and browsers can process without throwing errors.
This tool performs these conversions in your browser, ensuring your private parameters and API endpoints are never sent to a remote server.
When to Encode or Decode URLs
URL encoding is a fundamental requirement for modern web development and digital marketing:
- API Requests: When sending GET requests with complex query parameters (like searching for a product name with spaces), the parameters must be encoded to prevent the server from misinterpreting the URL structure.
- UTM Tracking: Marketers adding UTM tags to URLs for Google Analytics must encode parameters that contain spaces or special characters to ensure tracking data is recorded accurately.
- Debugging Links: If you encounter a massive, unreadable URL filled with
%20and%3Fcharacters, use the Decode function to translate it back into human-readable text and see exactly what information is being passed.
Examples of URL Encoding
Here is how the algorithm translates special characters into safe web formats:
Before (Raw): https://example.com/search?q=hello world!
After (Encoded): https%3A%2F%2Fexample.com%2Fsearch%3Fq%3Dhello%20world%21
Related Developer Tools
If you are formatting data for backend logic or databases, explore our other developer utilities:
- Base64 Encode/Decode - Convert text or data into safe Base64 format.
- kebab-case Converter - Transform text into SEO-friendly URL slugs (e.g.,
my-blog-post). - snake_case Converter - Format database columns and Python variables.