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URL Encoder / Decoder

Percent-encode query strings and slugs with spaces or special characters — and decode them back — instantly in your browser.

How to use

  1. Pick Encode or Decode mode.
  2. Paste the URL or text — result updates live.
  3. Copy the result.

Frequently asked questions

When do I need URL encoding?

Whenever a URL contains spaces, ampersands, or non-ASCII characters (like "kopi susu") that would otherwise break the link.

What is the difference between encodeURI and encodeURIComponent?

This tool uses full component encoding (spaces become %20), the safe choice for query values and path segments.

Can I decode UTM-tagged URLs?

Yes — paste the full encoded URL in Decode mode to read the original parameters.