Query String Parser
Parse URL query parameters into JSON. Free, private, and local-first.
Use Query String Parser
Parse URL query parameters into JSON and sorted query strings.
Parameters
4
tag=tools&tag=seo&utm_medium=cpc&utm_source=google
{
"utm_source": "google",
"utm_medium": "cpc",
"tag": [
"tools",
"seo"
]
}Quick answer
Query String Parser is a free online tool that helps you parse URL query parameters into JSON. It runs in your browser, so you can work with development data, text, files, or generated output without creating an account.
About Query String Parser
Query String Parser helps you parse URL query parameters into JSON. It is designed for focused local-first workflows where you need a quick result without creating an account or sending your input to a server.
Common uses include debugging tracking urls, inspecting utm parameters, checking repeated query values.
Use the examples, usage notes, FAQ, and related tools below when you need to compare formats, build sample data, validate inputs, or move into the next step of the same workflow.
What this tool does
How to use Query String Parser
- 1
Paste a full URL or query string.
- 2
Review parsed parameters as JSON.
- 3
Copy the sorted query string if needed.
- 4
Use UTM Builder for campaign URL creation.
Examples
URL
https://example.com/?utm_source=google&tag=seo&tag=tools
JSON
{"utm_source":"google","tag":["seo","tools"]}
Use cases
- Debugging tracking URLs
- Inspecting UTM parameters
- Checking repeated query values
- Normalizing URLs before documentation
Related workflow
After using Query String Parser, many workflows continue with related tools for validation, conversion, cleanup, mock data, or final export.
Privacy and usage notes
CodeVella tools are designed to run locally in your browser. Your input is not uploaded to a server, and no account is required.
Generated test data is intended for development, QA, demos, and safe internal workflows.
Frequently asked questions
Is my data uploaded?+
No. This tool is designed to run locally in your browser.
Do I need an account?+
No signup is required for CodeVella tools.
Can it parse a full URL?+
Yes. Paste a full URL or only the query string. Repeated parameters are grouped into arrays in the parsed JSON output.