URL Encode / Decode
Encode or decode URL components - fully client-side
URL Encoder
What this tool does
URL-encodes text (percent-encoding) so it can be safely placed in a URL, query string, or form body - and decodes the reverse. Fully client-side.
Who it's for: Web developers building URLs with dynamic parameters, QA engineers constructing test URLs, and anyone debugging mangled redirects.
When to use
- •Encode a search query for a GET parameter.
- •Decode a redirect URL from a tracking link to see where it points.
- •Prepare a long query string with special characters for curl testing.
- •Debug a form submission where the server sees wrong values.
How it works
- 1Paste text, pick encode or decode.
- 2Every non-safe character becomes %XX (hex).
- 3Space becomes %20 (or + in form-encoded mode).
- 4All processing is local; no data transmission.
Tips
- •Encode ONLY the value, not the entire URL - otherwise /, ?, & get mangled.
- •Use encodeURIComponent in JavaScript, not encodeURI - they differ on reserved chars.
- •Spaces in URL paths → %20; in form bodies → + (historical quirk).