%20Developer / FREE ONLINE TOOL

URL Encoder & Decoder

Free URL encoder and decoder for query parameters and URI strings. Escape special characters, decode percent-encoding and copy results locally with no account.

Make it yours

◈ On-device processing

How to use this tool

Paste a value, choose whether you are working with a URL query component or a complete URI, then Encode or Decode. Compare the original text with the resulting escaped form.

Quick steps

  1. Enter the URL text or parameter value you need to convert.
  2. Choose Component for parameter values or Full URI to preserve separators.
  3. Encode or Decode and copy the resulting text.

Practical tip

Encoding a query value is different from encoding a complete URL: complete URI mode preserves reserved delimiters such as slashes and question marks. Encode only the component you intend to escape.

Common questions

What does %20 represent?

It is the percent-encoded form of a space character.

Should I encode an entire URL as a query parameter?

If the full URL is inserted as one parameter value, encode it in component mode before assembling the outer URL.

Can I decode malformed percent encoding?

No. Invalid percent sequences are rejected with an error rather than silently altered.

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