URL Encode/Decode

Encode and decode URL-encoded strings. Percent-encoding.

Result
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How it works

  1. 1Choose Encode or Decode mode.
  2. 2For Encode—paste text; special characters (spaces, &, =, etc.) are converted to percent-encoded format (e.g., space → %20).
  3. 3For Decode—paste a URL-encoded string to get plain text.
  4. 4Invalid encoding shows an error when decoding.

Example

Input: hello world
Output (Encode): hello%20world
Input: hello%20world
Output (Decode): hello world