URL Encoder / Decoder

How to use URL Encoder / Decoder

1. Select Encode to encode text or Decode to decode URL-encoded text.
2. Enter your text, URL or encoded URL in the input box.
3. Click Encode URL or Decode URL.
4. Review the converted result.
5. Click Copy to copy the result to your clipboard.

What is URL Encoding?

URL encoding, also called percent-encoding, converts characters that may have a special meaning in a URL into an encoded representation. Encoded characters are represented using a percent sign followed by hexadecimal digits.

For example, a space can be represented as %20.

URL Encoding Examples

encodeURIComponent vs decodeURIComponent

This tool uses JavaScript's encodeURIComponent() function when encoding and decodeURIComponent() when decoding.

These functions are useful when working with individual URL components such as query parameter values, rather than encoding an entire URL structure indiscriminately.

URL Encoding vs URL Decoding

When should you use URL Encoding?

• Encode query parameter values before placing them in URLs.
• Prepare text containing spaces or special characters for URL components.
• Inspect encoded values returned by APIs or web applications.
• Decode percent-encoded text into readable characters.
• Debug URL-related data during development.

Invalid Encoded Text

When decoding, the input must contain valid percent-encoded sequences. If the encoded text is invalid, the browser's decoding function can throw an error and this tool will display an error message instead of returning an invalid result.

Is my URL or text uploaded to a server?

No. Encoding and decoding are performed directly in your browser using JavaScript. The text does not need to be uploaded to a backend server.

Input Limit

The input and result fields support up to 100,000 characters. Very large values may require additional browser memory and processing time.