🔗

URL Encoder & Decoder

Encode and decode URLs and URI components safely with various encoding options for web development.

Auto-process

Text/URL Input

📁 Upload

Examples:

URL Encoded Output

Options

Mode

Component ModeUse encodeURIComponent (for parameters) vs encodeURI (for full URLs)

Space Encoding

How It Works

Privacy First

This url encoder & decoder processes your data entirely in your browser. No data is uploaded to any server, ensuring complete privacy and security.

Lightning Fast

Instant processing with real-time validation and error detection. No waiting, no delays - just immediate results.

Versatile Use Cases

Encode query parameters for safe URL transmission
Prepare filenames and paths for use in URLs
Encode form data for GET requests

Mobile Friendly

Responsive design that works perfectly on all devices and screen sizes. Touch-friendly interface for mobile users.

Frequently Asked Questions

What is URL encoding?

URL encoding (percent encoding) converts characters into a format that can be safely transmitted over the internet by replacing unsafe characters with % followed by hex codes.

When should I use encodeURI vs encodeURIComponent?

Use encodeURI for complete URLs to preserve the URL structure. Use encodeURIComponent for individual parameters or components that may contain reserved characters.

Should spaces be encoded as + or %20?

In query parameters, spaces can be + or %20. In URL paths and most other contexts, use %20. The + encoding is specific to application/x-www-form-urlencoded format.

Are there characters that don't need encoding?

Yes, unreserved characters (A-Z, a-z, 0-9, -, ., _, ~) don't need encoding. Reserved characters (: / ? # [ ] @ ! $ & ' ( ) * + , ; =) may need encoding depending on context.