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Query String Builder

Query String Builder

Build and parse URL query strings online. Free query parameter editor for APIs and web apps.

Runs in your browser. Files stay on this device.

Parameters

Edit key/value pairs

Base URL

2 params

Result

Live URL

https://browsertools.tech/tools?category=web&q=url+tools

Import URL

Paste a URL or query string to edit

About Query String Builder

Add, edit, and reorder query parameters visually, then copy a clean query string or full URL.

Ideal for API debugging and campaign links.

Frequently asked questions

Yes. Paste a URL or query string to edit its parameters.

Yes. Build query strings online free.

Values can be encoded so the final URL stays valid.

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