URL Encoder/Decoder | Free Online Tool - DevToolKit
Free URL encoder and decoder. Encode special characters for URLs or decode percent-encoded strings. Supports full URL and component encoding.
Encodes all special characters — use for query parameter values.
Common URL Encodings
What is URL Encoder/Decoder?
How to Use URL Encoder/Decoder
Enter text in the input area. Click "Encode" to convert special characters to percent-encoded format, or "Decode" to convert percent-encoded strings back to readable text. Choose between encodeURI (preserves URL structure) and encodeURIComponent (encodes everything except letters, digits, and a few special characters). Conversion happens in real time as you type.
How URL Encoder/Decoder Works
Common Use Cases
- Encoding query parameters before adding them to a URL
- Decoding percent-encoded URLs to read their content
- Preparing data for HTTP POST requests with application/x-www-form-urlencoded
- Debugging URL encoding issues in web applications
- Encoding file paths or special characters for API calls
Frequently Asked Questions
What is the difference between encodeURI and encodeURIComponent?▼
encodeURI() is designed for encoding complete URIs and preserves characters that have special meaning in URLs (like :, /, ?, #, &). encodeURIComponent() encodes everything except letters, digits, and - _ . ~ making it suitable for encoding individual parameter values.
When should I use URL encoding?▼
Use URL encoding whenever you need to include special characters in a URL, such as spaces, ampersands, or non-ASCII characters. It is essential for query string parameters, form submissions, and any data transmitted via URLs.
What does %20 mean in a URL?▼
%20 is the URL-encoded representation of a space character. When you see %20 in a URL, it means there was a space in the original text. Similarly, %26 is &, %3D is =, and %3F is ?.
Is my data secure?▼
Yes. All encoding and decoding happens in your browser. No data is sent to any server.
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