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URL Encoder/Decoder
Encode and decode URL components for safe transmission. Perfect for query parameters and special characters.
No uploads • Client-side only • Your data stays on your device
Encoding Examples:
Original:
Hello World!Encoded:
Hello%20World%21Original:
name=John Doe&age=30Encoded:
name%3DJohn%20Doe%26age%3D30When to Use URL Encoding:
- Including special characters in URL query parameters
- Spaces, ampersands (&), equals signs (=), and other reserved characters
- Non-ASCII characters (accents, emojis, etc.)
- Building API requests with dynamic parameters
Component vs Full URL Encoding:
- Component (encodeURIComponent): Encodes all special characters including /, ?, &, =
- Full URL (encodeURI): Preserves URL structure characters (/, ?, &, =)
- Use component encoding for individual parameters and values
- Use full URL encoding only when encoding entire URLs
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All processing happens directly in your browser using JavaScript. Your files, passwords, and data never leave your device and are never uploaded to our servers. We cannot see, store, or access anything you process with this tool.
No account required • No tracking • No data collection • Works offline after initial load