JistWeb
URL Encoder / Decoder
Encode or decode URLs and text strings instantly.
Technical Details & Privacy
- Data Privacy: 100% Client-side processing. Your inputs and outputs are never transmitted over the network or saved to external servers.
- Technology: Powered by JavaScript's native
encodeURIComponent()anddecodeURIComponent()functions, adhering strictly to RFC 3986 standards for URI character escaping.
What is URL Encoding?
URL Encoding (also known as Percent-encoding) is a mechanism for safely transmitting data within a Uniform Resource Identifier (URI). URLs can only be sent over the Internet using the ASCII character-set. URL encoding replaces unsafe ASCII characters with a '%' followed by two hexadecimal digits.
Common Use Cases
- Formatting complex search queries into a URL.
- Encoding user input before submitting it via a GET request.
- Fixing broken links that contain spaces or special characters.
Frequently Asked Questions
Why do spaces become '%20'?
Spaces are not allowed in valid URLs. The hexadecimal value for a space in the ASCII character set is 20, which is why it is encoded as '%20'.
Is this the same as HTML encoding?
No, HTML encoding uses entities like '&' whereas URL encoding uses percent signs like '%26'.