URL Query Builder / Parser
Inspect, edit, and rebuild query strings for APIs and URLs in seconds.
Parse & build
No uploads
URL or query string
Runs in your browser
Tip: paste a full URL or just the part after ?
Parsed parameters
Rebuilt query
Full URL
Privacy note: parsing happens locally in your browser.
What a query string is
Query strings pass parameters in URLs after the ? character, often used for filters, searches, and tracking.
Why this tool helps
It breaks down parameters into readable pairs so you can verify or edit values quickly.
Encoding tips
Use percent-encoding for special characters. Spaces are typically encoded as %20 or + in query values.
How to parse a query string
Paste a URL or query string and review the parsed result.
- Paste a full URL or query string into the input.
- Review parsed parameters and rebuilt query.
- Copy the output you need.
FAQ
Does this tool upload my URLs?
No. Everything runs locally in your browser.
Can it handle duplicate keys?
Yes, duplicate keys are preserved in the list.
Should I encode the entire URL?
Usually you only encode parameter values, not the whole URL.