When should I URL-encode?

Whenever you put user input or special characters into a query string, fragment, or form body that expects application/x-www-form-urlencoded style values.

Is + treated as a space?

On decode, + is treated as a space (common form encoding). Encode uses encodeURIComponent, which encodes spaces as %20.

URL Encode / Decode

Free URL encode and decode tool for query strings and percent-encoding. Private, instant, browser-only.

Processed locally in your browser — nothing is uploaded.

Input

Output

https%3A%2F%2Fexample.com%2Fsearch%3Fq%3Dhello%20world%26lang%3Den

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About this tool

URL (percent) encoding makes strings safe for query parameters and path segments. Use this free encoder/decoder with encodeURIComponent-style semantics—private and instant in the browser.

Frequently asked questions

When should I URL-encode?: Whenever you put user input or special characters into a query string, fragment, or form body that expects application/x-www-form-urlencoded style values.
Is + treated as a space?: On decode, + is treated as a space (common form encoding). Encode uses encodeURIComponent, which encodes spaces as %20.