Encoding & Decoding

URL Encoder

Convert reserved and non-ASCII characters into a form safe for one URL component.

Encoded component
Your result will appear here.
Processed locally in this browser. Your input is not sent to DevKitly.

What is URL Encoder?

URL encoding replaces characters that have special meaning in URLs (such as &, =, ?, and spaces) with % followed by their UTF-8 byte values. DevKitly uses encodeURIComponent, which is the right choice for a single parameter value.

How to use URL Encoder

  1. Paste your input into the editor above, or select Sample to load an example.
  2. Select Encode URL. If the input cannot be processed, a message explains what to fix.
  3. Use Copy or Download to take the result with you, and Clear to start again.

Example

Input

search=dev tools & more

Output

search%3Ddev%20tools%20%26%20more

Practical use cases

  • Build query parameters
  • Encode redirect values
  • Prepare path fragments

Common problems

  • Encoding an entire URL with a component encoder
  • Double-encoding existing escapes
  • Treating encoding as sanitization

Frequently asked questions

Should I encode a full URL?

Usually not. Encode individual parameter values, then join them. Encoding a whole URL also escapes the :// and / characters that make it a URL.

Is URL Encoder free to use?

Yes. URL Encoder is free and does not require an account.

Does my input leave the browser?

No. This tool performs its processing locally in your browser and does not need to upload your input.