Reference notes
How URL decoding works
URL decoding turns percent-encoded sequences back into readable characters.
The decoder should report malformed percent sequences and explain whether + is treated as a plus sign or a space.
URL decoder examples
The value hello%20world decodes to hello world.
Malformed values such as %ZZ should produce a validation error instead of silently changing the input.
URL decoder FAQ
URL decoding can reveal reserved characters that change how a URL is interpreted.
Decode user input carefully when it will later be used in redirects, paths, or query strings.
URL decoder references
Reference material should cover percent-encoding syntax, UTF-8 decoding, and form URL decoding.
Future notes can compare browser APIs and server-side decoder behavior.
URL decoder developer examples
Developer examples should show decoding query values and handling invalid percent escapes.
Examples should make double-decoding risks explicit.