Query String Parser
Paste a query string or full URL and review every parameter without sending it anywhere.
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 table makes campaign tags, filters, flags and repeated parameters easier to compare. The parser shows syntax only; server precedence, business rules, network behavior and value safety are unknown.
What the tool evaluates
Each parameter occurrence becomes a decoded key-value row while duplicate keys, blank values and order are preserved. The table makes campaign tags, filters, flags and repeated parameters easier to compare.
- Each parameter occurrence becomes a decoded key-value row while duplicate keys, blank values and order are preserved.
- Duplicate keys are application-specific, encoding changes values and shared URLs can expose sensitive tokens.
- Review every occurrence, remove secrets before sharing and test how the receiving application handles blanks and repeats.
Common problems and next steps
Duplicate keys are application-specific, encoding changes values and shared URLs can expose sensitive tokens. Review every occurrence, remove secrets before sharing and test how the receiving application handles blanks and repeats. The parser shows syntax only; server precedence, business rules, network behavior and value safety are unknown.
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?
The table makes campaign tags, filters, flags and repeated parameters easier to compare. 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.
Related URL tools and guides
URL Parser
Split a URL into protocol, host, path, query string and fragment parts.
Learn more →UTM URL Builder
Build consistently encoded utm_source, medium, campaign, term and content parameters.
Learn more →URL Cleaner
Remove UTM, fbclid, gclid and common marketing parameters locally.
Learn more →