URL Encoder / Decoder

It converts characters that aren't safe in a URL (spaces, &, ?, #, and others) into a % followed by their hex code, so the text can be safely used as a query parameter or part of a URL.

When you have a URL-encoded string (like %20 for a space, or %3F for a question mark) and want to read or edit the original, human-readable text.

This encodes/decodes a single value, matching JavaScript's encodeURIComponent/decodeURIComponent — the standard choice for encoding a query parameter or path segment, not an entire URL with its scheme and structure intact.

No — encoding and decoding both happen entirely in your browser.