What this does
Encodes and decodes percent-encoded URL text, and breaks a full URL down into its protocol, host, path, query parameters, and hash. Use the query string builder to assemble parameters into a ready-to-use query string.
Component vs Full URL
Component mode (encodeURIComponent) escapes every reserved character, including / ? & = — use it for a single value that will be placed inside a URL, like a query parameter. Full URL mode (encodeURI) leaves URL structure characters alone — use it for an entire URL.
Privacy
This runs entirely in your browser. Nothing is uploaded.