QS
Query String Builder
Build and parse query strings. Add key-value pairs visually or paste an existing query string to deconstruct.
Runs entirely in your browser · Your input is never transmitted
QUERY STRING
0 paramsReady
PARAMETERS
Ready—
How to use
- Paste a query string OR add rows.
- Edits sync both views.
- Copy the encoded result.
Frequently asked
Array values?
Repeat the same key: ?tag=a&tag=b. PHP-style arrays with [] are not applied automatically — add [] to the key if your server expects it.