URL Encoder & Decoder

Encode special characters for URLs or decode percent-encoded strings instantly.

Text to encode

Use encodeURIComponent (recommended)

Encoded result

What is URL Encoding?

URL encoding (also called percent-encoding) converts characters into a format that can be transmitted over the Internet. URLs can only be sent using the ASCII character set — special characters are replaced with a % followed by two hexadecimal digits.

encodeURI vs encodeURIComponent

encodeURIComponent — encodes everything except A-Z a-z 0-9 - _ . ! ~ * ' ( )
encodeURI — preserves URL structure characters like : / ? # [ ] @

Common Use Cases

Encoding query parameter values
Making URLs safe for sharing
Encoding form data
Working with REST APIs