What is Query String Builder?

Build, edit and parse URL query strings with a friendly table editor.

Is Query String Builder free to use?

Yes — Query String Builder is free to use, with no sign-up, no install and no account.

No — Query String Builder runs entirely in your browser, so your text, files and results never leave your device.

No — it works in any modern browser (Chrome, Edge, Firefox, Safari) with no downloads, accounts or plugins.

What is Query String Builder?: Build, edit and parse URL query strings with a friendly table editor.
Is Query String Builder free to use?: Yes — Query String Builder is free to use, with no sign-up, no install and no account.
Does Query String Builder upload or store my data?: No — Query String Builder runs entirely in your browser, so your text, files and results never leave your device.
Do I need to install anything to use Query String Builder?: No — it works in any modern browser (Chrome, Edge, Firefox, Safari) with no downloads, accounts or plugins.