URL parameter inspector

Query String Parser

Paste a query string or full URL and review every parameter without sending it anywhere.

Local workspace
Browser onlyPrivateNo signup
Input
Try an example
Result
No query parameters found.
Free to use No account required Runs in your browser

Inspect query string parameters

Each parameter occurrence becomes a decoded key-value row while duplicate keys, blank values and order are preserved.

Interpret the result

The table makes campaign tags, filters, flags and repeated parameters easier to compare.

Catch common problems

Duplicate keys are application-specific, encoding changes values and shared URLs can expose sensitive tokens.

How to interpret query string parameters

The parser shows syntax only; server precedence, business rules, network behavior and value safety are unknown.

Common problems and next steps

Duplicate keys are application-specific, encoding changes values and shared URLs can expose sensitive tokens.

Frequently asked questions

What does the query string parameters check cover?

Each parameter occurrence becomes a decoded key-value row while duplicate keys, blank values and order are preserved.

How should I use the result?

Review every occurrence, remove secrets before sharing and test how the receiving application handles blanks and repeats.

What are the limits of this tool?

The parser shows syntax only; server precedence, business rules, network behavior and value safety are unknown.

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