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URL Encoder and Decoder

Percent-encode or decode a URL and see its query parameters listed out.

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urlenc.exe

URL Encoder / Decoder

Percent-encode or decode a URL and see its query parameters listed out.

Starts in your browser. Instructions are below.

How to use URL Encoder / Decoder

  1. 01Paste a URL or a piece of text into the input box.
  2. 02Choose Encode or Decode, depending on what you need.
  3. 03Read the output below, and check the query parameter table for the key and value of each parameter.

About URL Encoder / Decoder

This URL encoder and decoder turns text into percent encoding, and turns percent-encoded text back into readable characters. URLs can only contain a limited set of characters, so anything else, like a space or an ampersand inside a value, gets written as a % followed by its hexadecimal byte value.

Encoding uses encodeURIComponent, so a space becomes %20 and an ampersand inside a value becomes %26, which keeps it from being mistaken for a parameter separator. Decoding reverses the process with decodeURIComponent.

Paste a full URL to also see its query string broken into a key and value table, which makes it easy to check what a link actually sends. Use the encoder whenever you are building a query parameter value by hand.

Frequently asked questions

When do I need to URL-encode a value?
Whenever you are putting a value inside a query parameter, so characters like & and = do not break the URL.
Why does my decoded text show an error or strange characters?
The input was probably encoded twice, or contains a malformed % sequence. Check the error message and try decoding again.
Is my URL sent anywhere?
No, encoding and decoding happen entirely in your browser.
Does it show query parameters automatically?
Yes, paste a URL with a query string and the parameters appear in a table below the output.

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