Query String Parser
Turn a ?key=value URL query string into a clean, readable list of parameters. Free, no signup.
Scan to open on your phone
Point your phone camera at the code to open this tool.
Turn a ?key=value URL query string into a clean, readable list of parameters. Free, no signup.
How to use Query String Parser
- Paste or type your contentThe result appears as you type — there is no submit button.
- Read and copy the resultThe output updates live and the copy button takes it in one click.
Worked example
- ?utm_source=newsletter&id=42&ref=home
- utm_source = newsletter id = 42 ref = home
Nothing you enter leaves your device
All of the work happens inside your browser. Whatever you type is never packaged up and sent to a server, and no request this page makes carries it.
That makes it safe for contract amounts, personal details and internal documents you would rather not hand to a third party — close the tab and it is gone.
What this tool does not do
Query String Parser only does what a browser can do on its own — it talks to no backend service. So it keeps no history for you and syncs nothing across devices; if you need a record, copy or download the result.
It is also not a substitute for professional judgement. For legal, medical or tax decisions, treat the output as a starting point rather than a final answer.
Frequently Asked Questions
- Do I need the leading question mark?
- No. The tool strips it if present, so you can paste the raw parameters too.
- Are values URL-decoded?
- Yes. Percent-encoded values such as %20 are turned back into normal characters.