Developer Utilities

URL Encoder & Decoder

Percent-encode URI special characters or decode encoded query parameters and URL components.

100% Client-Side Percent Encoder

Mode:

Type:

Raw URL / Parameter Input

https://searchzee.com/search?q=free web tools&category=text & dev

Percent-Encoded Output

https%3A%2F%2Fsearchzee.com%2Fsearch%3Fq%3Dfree%20web%20tools%26category%3Dtext%20%26%20dev

What is a URL Encoder & Decoder?

Function	Preserved Characters	Best Used For
encodeURIComponent	`A-Z`, `a-z`, `0-9`, `-`, `_`, `.`, `!`, `~`, `*`, `'`, `()`	Query parameter values (e.g. `?q=hello%20world`).
encodeURI	Preserves `://`, `/`, `?`, `#`, `&`, `=`	Full web page address URLs.

What is percent-encoding in URLs?

Percent-encoding replaces unsafe or reserved characters in a URL with a "%" followed by two hexadecimal digits (RFC 3986).

What is the difference between encodeURI and encodeURIComponent?

encodeURI preserves protocol and domain syntax (:, /, ?, #), while encodeURIComponent encodes all reserved characters for query parameter values.