URL Encoder/Decoder
Encode or decode URLs instantly. Convert special characters to URL-safe format and decode encoded URLs back to their original form. Perfect for web development and data transmission.
URL Encoder/Decoder
Enter URL to Encoder/Decoder:
Encoding Options
Result:
Operation Complete
Result will appear here...
Analytics
Original Length:
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Result Length:
0
Size Change:
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Processing Time:
0ms
Why Use URL Encoding?
Data Security
Encode URLs to safely transmit special characters and prevent injection attacks.
Data Transmission
Ensure proper transmission of data through URLs without corruption or errors.
Web Compatibility
Make URLs compatible with all web browsers and servers by encoding special characters.
SEO Friendly
Properly encoded URLs are more search-engine friendly and readable.
How URL Encoding Works
URL encoding converts special characters in a URL to a format that can be safely transmitted over the internet. Each special character is replaced by a "%" followed by two hexadecimal digits.
Common Encoded Characters:
- Space →
%20or+ - Exclamation mark →
%21 - Hash →
%23 - Dollar sign →
%24 - Percent →
%25
- Ampersand →
%26 - Plus →
%2B - Equals →
%3D - Question mark →
%3F - At symbol →
%40
Examples:
Original:
Encoded:
https://example.com/search?q=hello world&sort=descEncoded:
https%3A%2F%2Fexample.com%2Fsearch%3Fq%3Dhello%20world%26sort%3Ddesc
Original:
Encoded:
Müller & Co.Encoded:
M%C3%BCller%20%26%20Co.
URL Encoding FAQ
URL encoding converts special characters in a URL to a safe format for web transmission. It's important because URLs can only contain a limited set of characters, and special characters like spaces, ampersands, or non-ASCII characters need to be encoded to work properly across all browsers and servers.
encodeURI encodes a complete URL but preserves the URL structure (protocol, domain, etc.).
encodeURIComponent encodes everything, including special characters that are part of URL syntax. Use encodeURIComponent for query string parameters.
encodeURIComponent encodes everything, including special characters that are part of URL syntax. Use encodeURIComponent for query string parameters.
Use URL encoding when:
- Passing parameters in query strings
- Including special characters in URLs
- Working with non-ASCII characters (like é, ü, etc.)
- Sending form data via GET method
- Creating dynamic URLs in JavaScript
Properly encoded URLs are essential for SEO. Search engines can read encoded URLs correctly, while unencoded special characters may cause crawling issues. However, for readability, use human-readable URLs when possible and reserve encoding for necessary special characters.