URL Encoder / Decoder
Encode special characters in URLs or decode URL-encoded strings back to readable...Encode special characters in URLs or decode URL-encoded strings back to readable text. Multiple encoding modes available including Smart URL, encodeUR...
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Common URL Encoded Characters
Tool Features
Why Use URL Encoder / Decoder?
Smart URL Mode
Intelligently encodes only what needs encoding while preserving the URL structure. No more broken slashes or colons.
Multiple Modes
Choose between Smart URL, encodeURIComponent, or encodeURI depending on your specific use case and requirements.
Instant Results
Get encoded or decoded results immediately. Copy with one click or swap input/output for quick workflow.
Privacy First
All encoding happens in your browser. Your URLs and data never leave your device or get stored on any server.
Common Uses for URL Encoding
API Development
Encode query parameters and path segments for REST API calls and web service integrations.
URL Building
Safely construct URLs with user-generated content, file names, or international characters.
Debugging
Decode encoded URLs from logs, error messages, or browser dev tools to read the original values.
Web Development
Handle form data, redirect URLs, and deep links that contain special or non-ASCII characters.
How It Works
Select Encoding Mode
Choose "Encode" to convert special characters to URL-safe format, or "Decode" to convert encoded URLs back to readable text.
Choose Encoding Type
Use "Smart URL" to preserve URL structure while encoding parameters, "encodeURIComponent" for query values, or "encodeURI" for minimal encoding.
Enter and Convert
Paste your URL or text, click the convert button, and copy the result. Use the swap button to quickly switch between encoding and decoding.
Tips & Best Practices
Use Smart Mode for Full URLs
Smart URL mode is recommended for encoding complete URLs as it preserves the protocol, host, and path structure.
encodeURIComponent for Parameters
When encoding individual query parameter values, use encodeURIComponent to ensure all special characters are properly encoded.
Double Encoding Warning
Avoid encoding an already-encoded URL, as this causes double encoding (e.g., %20 becomes %2520). Use the decode mode first if unsure.