What characters are encoded?

All characters except A-Z, a-z, 0-9, and the special characters - _ . ! ~ * ' ( ) are replaced with percent-encoded equivalents. For example, a space becomes %20 and & becomes %26.

What is the difference between encodeURI and encodeURIComponent?

encodeURIComponent encodes more characters (including / ? & = #) making it safe for use in query string values. encodeURI leaves URL-structural characters intact. This tool uses encodeURIComponent for maximum safety.

When should I use URL encoding?

Use URL encoding whenever you embed user input in a URL query string, form data, or any place where special characters could break the URL structure.

URL Encode

Convert special characters to percent-encoded format for URLs and query strings. Full Unicode support. Uses the standard encodeURIComponent function for maximum safety. Runs entirely in your browser — your data never leaves your device.

Your files are processed entirely in your browser. Nothing is uploaded to any server.

How to Use URL Encode

1
Paste or type your text
Enter your text in the input area. You can paste from clipboard or type directly.
2
See instant results
The tool processes your text automatically as you type. Adjust options if available.
3
Copy the output
Click the copy button to save the result to your clipboard. No data leaves your browser.

Frequently Asked Questions

Next Steps

Decode URL-encoded strings

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