Is this the same as encodeURIComponent?

Yes. Encoding uses encodeURIComponent and decoding uses decodeURIComponent (plus converting + to spaces).

Should I encode a full URL including https://?

Usually encode only query values or path segments — not the entire URL with scheme and host.

New

Percent-encode text for query strings and paths, or decode URL-encoded strings back to plain text.

Mode

Text / URL

Encoded

Hello DevKit! query=a&b=c

Hello%20DevKit!%20query%3Da%26b%3Dc

Encode and decode Base64 strings

Binary, octal, decimal, hex converter

Convert Unix timestamps to dates