What is URL encoding?

URL encoding replaces unsafe ASCII characters with a '%' followed by two hex digits. This ensures special characters are safely transmitted in URLs.

What's the difference between encodeURI and encodeURIComponent?

encodeURI encodes a full URL but preserves characters like :, /, ?, &. encodeURIComponent encodes everything including those characters, making it suitable for query parameter values.

When should I URL encode?

Always URL encode when passing user input as query parameters, form data, or any URL component that may contain special characters like spaces, &, =, or #.

URL Encoder / Decoder

Encode or decode URLs and URI components. Supports encodeURIComponent and encodeURI.

Input

Output

About URL Encoding

URL encoding replaces unsafe ASCII characters with a "%" followed by two hexadecimal digits. This is essential for passing special characters in URLs, query parameters, and form data. Use encodeURIComponent for query parameters and encodeURI for full URLs.

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How to Use

Enter text in the input field
Choose between URI Component or Full URI encoding mode
Click 'Encode' or 'Decode'
Copy the result

Common Use Cases

Encoding query parameters in URLs
Encoding form data for submission
Handling special characters in API requests
Debugging URL encoding issues

URL Encoder / Decoder

About URL Encoding

More Tools

How to Use

Common Use Cases

Frequently Asked Questions