Read a query string at a glance
Long URLs from search pages, ad platforms or APIs can carry dozens of parameters, encoded and hard to read. This tool lists every key and value in a table, decoded, keeping repeated keys, so ?size=m&size=l shows both values.
You can export the parameters as JSON, where repeated keys become arrays, or as CSV for a spreadsheet. It also reads parameters placed in a query-like fragment (#a=1&b=2), which single-page apps and some login flows use.
Everything runs in your browser. With ToolStudio Pro you can paste several URLs and get a single CSV with url, key and value columns, ready to filter or pivot.
How to extract URL parameters
- Paste the URL.
- Run the tool and review the key/value table.
- Export as JSON or CSV, or copy individual values.
- With Pro, paste several URLs to get one CSV with url, key and value.
When to use it
- Debugging the parameters an app or form sends.
- Turning a URL into JSON for a test or an API call.
- Comparing the parameters of many links in a spreadsheet (bulk with Pro).
- Reading filters and search terms from an e-commerce or search URL.
- Inspecting parameters in a #fragment from a single-page app.
Frequently Asked Questions
How are repeated keys handled?
All values are kept. In the table each one has its own row; in JSON the key becomes an array.
Are values decoded?
Yes. %XX sequences are decoded so you see readable text.
Does it read parameters after the #?
Yes, when the fragment looks like a query string, such as #a=1&b=2.
Can I process several URLs at once?
Yes, with ToolStudio Pro: paste several URLs and get one CSV with url, key and value columns. The free try is for one URL.
Is my URL sent to a server?
No. Everything happens in your browser.
How much does Pro cost?
€1.99 a month for every ToolStudio tool, unlimited use and no ads. Cancel anytime.