URL Params Converter
Convert URL query parameters to JSON, Python dict, or JavaScript object
Output format:
Parsed parameters will appear here...Paste Any URL
Works with any URL containing query parameters
Multiple Formats
Export as JSON, Python dict, or JavaScript object
Instant Conversion
Real-time parsing as you type or paste
About URL Query String Parser
A URL query string parser extracts and decodes the parameters from a URL. Query parameters are the key-value pairs that appear after the "?" in a URL.
This tool converts those parameters into structured data formats like JSON, Python dictionaries, or JavaScript objects. When you copy a URL from your browser, it often contains encoded characters and multiple parameters. This converter automatically decodes special characters and organizes the data into clean, readable code you can use directly in your projects.
Supported Output Formats
JSON
Standard format
Python
Dict syntax
JavaScript
Object literal
PHP
Array syntax
Ruby
Hash format
Go
Map structure
Java
HashMap
C#
Dictionary
Quick Start Guide
1
Paste URL
Copy any URL with query parameters and paste it into the input field.
2
Select Format
Choose your programming language or preferred output format.
3
Copy Code
Click copy to get the parsed parameters ready for your project.
Common Use Cases
API Development
Extract query parameters from API calls to understand request structure.
Debugging
Decode URL-encoded parameters to see actual values in requests.
Web Scraping
Parse pagination or filter parameters for dynamic scraping logic.
Frequently Asked Questions
What is a URL parameter converter and why do I need one?
A URL parameter converter extracts query string parameters from URLs and transforms them into structured data formats like JSON, Python dictionaries, or JavaScript objects. When debugging API requests, analyzing tracking URLs, or building web scrapers, you often need to inspect and use URL parameters in your code. This tool automates the tedious process of manually parsing query strings, saving time and reducing errors in your development workflow.
Does the tool automatically decode URL-encoded characters?
Yes, all URL-encoded characters are automatically decoded during conversion. Common encodings like %20 (space), %2F (slash), %3D (equals), %26 (ampersand), and %3F (question mark) are converted back to their original characters. This includes UTF-8 encoded international characters, special symbols, and any percent-encoded values in your URL parameters.
Can I paste just the query string without the full URL?
Yes, the tool is flexible with input formats. You can paste a complete URL (https://example.com?param=value), just the query string (?param=value), or even the raw parameters without the question mark (param=value). The parser automatically detects the format and extracts the parameters correctly regardless of how you provide the input.
Which programming languages and output formats are supported?
The converter supports 8 popular output formats: JSON (standard format), Python (dictionary syntax), JavaScript (object literal), PHP (array syntax), Ruby (hash format), Go (map structure), Java (HashMap), and C# (Dictionary). Each output follows the idiomatic coding style and conventions for that language, making it ready to paste directly into your project.
Is this URL parameter converter free to use?
Yes, this tool is 100% free with no usage limits, no registration required, and no advertisements. You can convert unlimited URLs without any restrictions. All processing happens in your browser, so your data is never sent to any server. We built this to help developers and analysts work more efficiently with URLs.
How does the tool handle arrays and duplicate parameters?
When a URL contains multiple parameters with the same name (like ?color=red&color=blue), the tool recognizes this as an array pattern. In JSON output, values are represented as arrays. For other languages, the output uses appropriate array or list syntax. This ensures you capture all parameter values, not just the last one.
Is my URL data secure when using this online tool?
Yes, your data is completely secure. All URL parsing and conversion happens locally in your browser using JavaScript. Your URLs, parameters, and any sensitive data they contain are never transmitted to any server. The tool works offline once loaded. You can verify this by checking the Network tab in your browser DevTools while using the converter.
Can I use this tool for analyzing tracking and analytics URLs?
Yes, this tool is perfect for analyzing marketing and analytics URLs. Tracking URLs from Google Analytics (UTM parameters), Facebook Ads, affiliate networks, and other platforms often contain many encoded parameters. Paste the URL to instantly see all tracking parameters decoded and formatted, making it easy to audit campaign tracking or debug analytics issues.
What happens if my URL has malformed or invalid parameters?
The tool handles edge cases gracefully. Parameters without values become empty strings. Invalid URL encoding is preserved as-is. The parser continues processing even if some parameters have unusual formatting. If the entire input cannot be parsed as URL parameters, you will see an error message explaining the issue.
How do I copy a URL from my browser address bar?
Click in your browser address bar (or press Ctrl+L / Cmd+L) to select the full URL, then copy it (Ctrl+C / Cmd+C). Paste it into the input field and the parameters are extracted instantly. This works with any URL from your browser, including complex URLs with many parameters from web applications and APIs.