Convert JSON to CSV
Flatten arrays of objects into CSV columns (dot notation) with Excel-friendly UTF-8 – Thai text included.
Grid that understands JSON
Arrays of objects become sortable, filterable tables; nested data opens in place.
Edit like a spreadsheet
Double-click a cell to edit, add or delete rows and keys – the JSON updates instantly.
Convert anything
JSON ⇄ CSV, Excel, YAML and XML, format, minify, validate and query with JSONPath.
Private by design
Data stays in your browser (20 documents). Nothing is uploaded until you share a link.
How to use
- Paste JSON, drop a file or open a URL – or try a sample.
- Explore it in Grid, Tree or Text view; click any cell to jump to it in the code.
- Edit cells, format, validate, query with JSONPath and convert.
- Download CSV / Excel / YAML / XML or share a read-only link.
Frequently asked questions
Is it free?
Yes. All tools work for free without an account.
Is my JSON uploaded?
No. Parsing, the grid and every conversion run in your browser. Data is sent only when you press Share or save to your Library after signing in.
How big can a file be?
Files up to 50 MB open in the browser; tables page through large arrays so 5,000+ rows stay fast. Library limits depend on your plan.
What is GridSync?
Clicking a cell, column or row selects the same place in the JSON code, and moving the cursor in the code highlights the matching cell.
Which JSONPath syntax is supported?
$, .key, ['key'], [0], [-1], [*], .., slices [0:5] and filters like [?(@.price > 100 && @.active == true)].