Query string editor
Edit query parameters as rows, preserve repeated names, and build an encoded URL with a live preview.
How it works & useful details
How this tool works
Use HTTP(S) URLs without credentials. Import the URL query to populate the rows; otherwise the rows replace it. Duplicate keys, empty keys, empty values and order are preserved. URLSearchParams uses + for spaces and normalizes query encoding. Import uses forgiving decoding for invalid UTF-8 sequences. Up to 100 rows, 256 characters per name and 2,048 per value.
