About URL Encoder (Percent-Encoding)
Safely encode URL query parameters, paths, and international characters into standard RFC 3986 percent-encoding. Prevents broken query strings and API parameter injection.
Key Capabilities & Features
- Encode full URLs or individual query parameter components
- Converts reserved characters (spaces, &, ?, =, #) to percent codes
- Instant real-time encoding
- One-click copy to clipboard
How to Use URL Encoder (Percent-Encoding)
Enter URL
Paste your raw URL or parameter text.
Encode
See percent-encoded text generated instantly.
Copy
Copy the safe URL for your web application.
Privacy & In-Browser Execution Guarantee
100% client-side encoding. Zero server logs.
Frequently Asked Questions
What is percent-encoding (URL encoding)?
Percent-encoding replaces unsafe ASCII characters with % followed by two hexadecimal digits (e.g., spaces become %20, ampersands become %26) to make URLs safe for web transmission.
What is the difference between encodeURI and encodeURIComponent?
encodeURI encodes an entire URL while preserving protocol and path separators (://?&=). encodeURIComponent encodes every special character, making it ideal for query parameter values.
Why should I encode query parameters in GET requests?
Failing to encode query values containing characters like &, =, or # causes servers to misinterpret query boundaries, leading to broken requests or parameter injection bugs.