What is the difference between encoding a value and a whole URL?

A value is encoded completely, including & = / and ?, so it can be placed inside a query string. A whole URL keeps those structural characters.

Is my data sent to a server?

No. Everything is processed in your browser, which matters when the input is a production payload, token or query. Nothing is uploaded, logged or stored.

URL Encoder and Decoder - Free Online Tool

JavaScript is turned off. InspireTools processes files in your browser, so the tools need JavaScript to run.

Percent-encode text for URLs or decode encoded URLs.