🔗URL Encoder/Decoder
Encode and decode URLs, parse query parameters, validate URLs, and build URLs from components. Works completely offline.
🔄 Bidirectional Conversion
Easily switch between encoding text to URL format and decoding URL-encoded text with a simple tab interface.
🔍 Query Parameter Parser
Extract and decode query parameters from URLs. View them in a table and copy individual or all parameters as JSON.
✅ URL Validator
Validate URLs and see a breakdown of all components: protocol, hostname, port, path, query string, and hash.
🔧 URL Builder
Build URLs from components with a form-based interface. Add multiple query parameters and see the URL update in real-time.
⚡ Real-time Processing
See results instantly as you type, with immediate validation and error feedback for all operations.
🔒 100% Private
All processing happens in your browser. No data is sent to servers or stored anywhere.
URL encoding (also known as percent encoding) is a mechanism for encoding information in a Uniform Resource Identifier (URI). Characters that cannot be used in a URL are converted to a format that can be safely transmitted over the internet.
Examples:
Text: "hello world"
Encoded: "hello%20world"
Text: "[email protected]"
Encoded: "user%40example.com"
Common Use Cases
- •Query Parameters: Encoding data passed in URL query strings (e.g., search terms, filters)
- •API Requests: Safely passing parameters to REST APIs and web services
- •Form Data: Encoding form submissions sent via GET requests
- •Special Characters: Handling spaces, ampersands, equals signs, and other reserved characters
- •International Text: Encoding Unicode characters, emojis, and non-ASCII text
Reserved Characters
These characters have special meaning in URLs and should be encoded when used as data:
: / ? # [ ] @ ! $ & ' ( ) * + , ; =
- Select operation: Choose "Encode URL" to convert text to URL-encoded format, or "Decode URL" to convert URL-encoded text back to plain text.
- Enter your data: Type your text or URL-encoded string in the input area.
- View the result: The converted output appears automatically in the result area below.
- Use additional tools: Expand the Query Parameter Parser to extract parameters from URLs, the URL Validator to check URL structure, or the URL Builder to construct URLs from components.
- Copy the result: Click the "Copy" button to copy results to your clipboard.
What is URL encoding?
URL encoding (percent encoding) converts characters into a format that can be safely transmitted in URLs. Special characters are replaced with a % sign followed by two hexadecimal digits representing the character's ASCII code.
When should I use URL encoding?
Use URL encoding when passing data in URLs, especially in query parameters. It's essential when your data contains spaces, special characters (like #, ?, &, =), or non-ASCII characters like accented letters or emojis.
Is my data safe and private?
Absolutely! All URL encoding, decoding, parsing, and validation happens entirely in your browser using JavaScript. Your data never leaves your device, is never sent to any servers, and works completely offline after the initial page load.
Does it support Unicode and special characters?
Yes, the tool properly handles Unicode characters including emojis, accented letters, and international text. The encodeURIComponent function correctly encodes all UTF-8 characters for safe URL transmission.
What's the difference between URL encoding and Base64?
URL encoding is specifically designed for URLs and only encodes characters that are unsafe in URLs. Base64 is a binary-to-text encoding that converts any data to a different character set. Use URL encoding for query parameters and path segments; use Base64 for binary data or when you need to encode entire URLs.
Can I parse query parameters from a URL?
Yes! Expand the "Query Parameter Parser" section to extract and decode all query parameters from a URL. It displays them in an easy-to-read table and allows you to copy individual parameters or export all of them as JSON.