Introduction
URLs (Uniform Resource Locators) can only contain a limited set of characters - letters, numbers, and a few special symbols. When you need to include spaces, special characters, or international characters in a URL, they must be percent-encoded to ensure proper transmission over the internet. Our URL Encoder/Decoder handles this conversion instantly and accurately.
URL encoding replaces unsafe ASCII characters with a "%" followed by two hexadecimal digits, while URL decoding reverses this process. This is essential for form submissions, query parameters, API requests, and any situation where URLs contain spaces or special characters like &, ?, #, and international characters.
The tool supports both full URL encoding and component-level encoding for query parameters and fragments. All processing happens locally in your browser with complete privacy - your URLs are never transmitted or logged.
Key Features
- 1 Encode URLs with proper percent-encoding for special characters
- 2 Decode URLs back to readable, human-friendly format
- 3 Encode URL components (query parameters, fragments) separately
- 4 Handle spaces as %20 or + with toggle option
- 5 Support for international characters and Unicode (UTF-8)
- 6 Live encoding/decoding as you type or paste
- 7 Batch processing: encode/decode multiple URLs at once
- 8 One-click copy to clipboard for easy transfer
- 9 Clear indication of encoded vs. decoded portions
- 10 Preserves URL structure while encoding only necessary parts
- 11 Error detection for malformed URLs
- 12 Works with URLs containing special characters: @, #, &, ?, =, /
How to Use
- 1 Paste your URL in the input field
- 2 Select whether you want to encode or decode
- 3 Choose space encoding: %20 (standard) or + (form data)
- 4 The result appears instantly in the output area
- 5 Click "Copy" to copy the encoded/decoded URL to clipboard
- 6 For multiple URLs, paste each on a new line for batch processing
- 7 Use the component encoding option for query parameters only
Why Choose This Tool
Component Awareness
Knows the difference between full URL encoding and component encoding, preserving URL structure while encoding only what's needed.
UTF-8 Support
Properly handles international characters, emojis, and Unicode symbols with correct multi-byte encoding.
Privacy First
All URL encoding and decoding happens locally in your browser. Your URLs are never sent to any server.
Developer Friendly
Batch processing and component-level encoding make it perfect for API development and query string construction.
Instant Results
Real-time encoding/decoding as you type. No waiting, no server requests, immediate feedback.
Format Options
Choose between %20 and + for space encoding to match your specific use case (URLs vs. form data).
Common Use Cases
Preparing URLs for API requests with query parameters
Encoding form data for submission via GET requests
Handling URLs with spaces and special characters in web development
Decoding URLs from server logs or analytics for analysis
Creating shareable links with search parameters
Working with internationalized domain names and paths
Debugging URL encoding issues in web applications
Processing redirect URLs and affiliate links