Convert URL Query Strings to JSON & Vice Versa
Easily parse URL parameters into structured JSON objects or generate encoded query strings from JSON.
About This Tool
Query String Parser provides bidirectional conversion between URL parameter strings and JSON, handling array brackets, encoded characters, booleans, and nested numbers seamlessly.
Key Features
Bidirectional Query String <-> JSON conversion
Automatic numeric and boolean type inference
Support for array parameters (tags[]=1&tags[]=2)
One-click clipboard copy
How to Use This Tool
- Choose 'URL Query String → JSON' or 'JSON → URL Query String'.
- Paste your query string or JSON payload.
- Click Convert to view and copy the transformed output.
Why Use This Tool
- Essential for inspecting complex API URLs, debugging webhook query parameters, and preparing HTTP GET requests.
- Automatically types booleans and numbers where applicable.
Pro Tips
- You can paste full URLs with domains; the parser will extract only the query portion automatically
Frequently Asked Questions
How does the parser handle duplicate query keys?
Duplicate keys (e.g. tag=react&tag=next) or bracketed arrays (tags[]=a&tags[]=b) are automatically combined into clean JSON arrays.
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