$ url-encode

URL Encoder / Decoder

Percent-encode text for URLs or decode an encoded string. Choose between full-string and component encoding.

Mode

Input

Output

Query parameters (parsed from input)

Ad slot

Which mode should I use?

Component (encodeURIComponent) is what you want for a single value going into a query string — it encodes &, =, / and ? so they cannot break the URL structure.

Full URI (encodeURI) leaves URL structure characters alone and only escapes spaces and non-ASCII, which is right when you have a whole URL that is mostly fine already.