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Protocol
URL Encoder/Decoder Tool
Encode URLs for web safety or decode them to readable format — 100% free, no signup
Start Encoding URLs Free
🔒 No signup required · Your URLs are never stored
Enter Your URL/Text
Your data is processed locally in your browser and never stored or shared.
Select Operation:
Processing your URL...
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Results
Processed Result:
Length: 0 chars
Operation: None
URL Analysis
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Domain
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Path
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Query Params
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Special Chars
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Encoding Status
📖 Common URL Encodings
| Character | URL Encoded | Description |
|---|---|---|
| Space | %20 or + |
Space character |
| ! | %21 |
Exclamation mark |
| # | %23 |
Hash/number sign |
| $ | %24 |
Dollar sign |
| & | %26 |
Ampersand |
| = | %3D |
Equals sign |
| ? | %3F |
Question mark |
| @ | %40 |
At symbol |
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This free online URL Encoder and Decoder tool helps you encode and decode URLs quickly and accurately. URL encoding is essential for safely transmitting special characters in web addresses, APIs, and query parameters. Designed for developers, SEO professionals, and technical users, this tool simplifies handling encoded URLs directly in your browser with no signup required. Whether you are debugging URLs, working with APIs, or preparing links for web applications, this tool ensures your URLs are properly formatted, readable, and compatible across systems.
Key Features:
- Smart Encoding: Automatically detects and encodes special characters
- Multiple Operations: URL encode, decode, and full encode options
- Real-time Analysis: Detailed breakdown of URL components
- Character Reference: Quick lookup for common encodings
- Privacy Focused: All processing happens in your browser
- Free & Unlimited: No registration, no usage limits
- Export Options: Copy, download, or swap results easily
How to Use This Tool
1
Enter Your URL/Text
Paste or type your URL or text into the input area. You can use plain text or existing URLs.
2
Select Operation
Choose between URL Encode (for web safety), URL Decode (to read encoded URLs), or Full Encode.
3
Process & Analyze
Click Encode or Decode to process. View detailed analysis of your URL's components.
4
Use Results
Copy the result, download it, or swap input/output for further processing.
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Frequently Asked Questions
URL encoding converts special characters in a URL into a format that can be safely transmitted over the internet. This is important because:
- Some characters have special meanings in URLs (like ? for queries, & for parameters)
- Spaces and special characters can break URL parsing
- Non-ASCII characters need to be converted to UTF-8 encoding
- Ensures compatibility across different browsers and servers
For example, a space becomes %20, and an ampersand (&) becomes %26.
encodeURI() is used to encode entire URLs, but it doesn't encode characters that are part of the URL syntax like :, /, ?, &, =, etc.
encodeURIComponent() encodes everything, including special URL characters. Use this for encoding individual URL components like query parameter values.
Example:
encodeURI("https://example.com/search?q=hello world") = "https://example.com/search?q=hello%20world"
encodeURIComponent("hello world") = "hello%20world"
Use URL encoding when:
- Your URLs contain spaces or special characters
- You're passing user input in query parameters
- Working with non-ASCII characters (Chinese, Arabic, emojis, etc.)
- Sending form data via GET requests
- Creating dynamic URLs in JavaScript
Avoid URL encoding for:
- Complete URLs that are already properly formatted
- Domain names and protocol parts
- When working with internal APIs that expect raw data
100% Safe and Private! Our URL encoder/decoder works entirely in your browser:
- No server processing: All encoding/decoding happens locally on your device
- No data storage: We don't save, log, or transmit your URLs/text to our servers
- No tracking: We don't use analytics or tracking on this tool page
- No cookies: No tracking cookies are set for this tool
- Local storage only: We only use localStorage to save your last input for convenience (optional)
You can even use this tool offline after the first load!
%20 is the proper URL encoding for a space character.
+ is used in application/x-www-form-urlencoded content (like form submissions), not in the URL path itself.
Best practice:
- Use %20 in URL paths: /search/hello%20world
- You can use + in query parameters: ?q=hello+world
- Most modern browsers and servers handle both, but %20 is more universally correct
- Our tool automatically uses %20 for proper URL encoding
Multiple URLs: Yes! Simply paste multiple URLs or lines of text, and they will all be processed together in the output.
Large files: While there's no strict limit, we recommend:
- For optimal performance: Keep under 100,000 characters
- For very large files: Process in chunks or use desktop software
- Browser memory: Large files may slow down your browser temporarily
File types supported: You can copy-paste content from .txt, .csv, .json, .xml, and other text-based files. Binary files need to be converted to text first.