FM 1-02 Chapter 1 · Encoding

URL encoding

Percent-encode and decode text as URI component, full URI or form data, and split URLs.

Local only Runs in your browser. Nothing you enter leaves this page.

Plain text

Percent-encoded

Mode

Component encodes everything except letters, digits and -_.!~*'(), for a single query value or path segment. Full URI keeps ;/?:@&=+$,# so a whole URL stays usable. Form is what HTML forms send: space becomes + and decoding reads + as space.