URL Encoder Decoder Online
Encode text for safe use in URLs or decode URL-encoded strings back to plain text. Perfect for query parameters, form data, and URL components.
Characters: 0
URL encoded output will appear here...
Common URL Encoding Examples
Original:
Hello World!
Encoded:
Hello%20World%21
Original:
Encoded:
user%40example.com
Original:
price=$19.99
Encoded:
price%3D%2419.99
Original:
path/to/file
Encoded:
path%2Fto%2Ffile
About URL Encoding & Decoding
What is URL Encoding?
URL encoding (percent-encoding) converts characters into a format that can be transmitted over the Internet. Special characters are replaced with a percent sign (%) followed by two hexadecimal digits representing the character's ASCII code.
Common Characters
- • Space → %20
- • @ → %40
- • # → %23
- • & → %26
- • = → %3D
- • ? → %3F
Use Cases
- • Query string parameters
- • Form data submission
- • API request parameters
- • Search engine URLs
- • File names in URLs
- • Email addresses in links
Security Notes
This tool processes data locally in your browser. Your data is not sent to any servers. URL encoding is essential for web security and preventing injection attacks.