Preview, edit, and export JSON data to CSV, Excel, or Markdown. Real-time table view. 100% in your browser — no server storage, no signup.
100% browser-based. Your data never leaves your device.
Convert JSON arrays, nested objects, and NDJSON to CSV with custom delimiters, encoding options, and an editable table preview.
Try itConvert JSON data to real Excel (.xlsx) files. Preview in an editable table, then download — ready for Excel, Google Sheets, or Numbers.
Try itConvert JSON arrays to clean Markdown tables. Ready for GitHub README, Notion, docs, and wiki. Edit cells before exporting.
Try itPaste or upload JSON, view as an editable table, modify cells, and export back to JSON. Supports nested objects, arrays, and NDJSON.
Try itYour JSON data is processed entirely in your browser. It is never stored on any server. No backend, no tracking, no signup.
Unlike other converters, you can edit cells directly in the preview table. Sort, hide columns, insert rows, and undo changes before downloading.
Automatically detects arrays, nested objects, NDJSON, API wrapper responses, and single objects. No manual configuration needed.
Download as CSV, Excel (.xlsx), or Markdown. Switch between formats with one click. Configure delimiters, encoding, and line endings for CSV.
JSONXX supports converting JSON to CSV (.csv), Excel (.xlsx), and Markdown (.md). Each converter features real-time preview, inline editing, and smart auto-detection of nested objects, NDJSON, and API wrapper responses.
Yes. All processing happens 100% in your browser. Your data is never uploaded to or stored on any server. There is no backend server and no tracking of your content. This makes it safe for converting sensitive data and API responses.
Yes — that is the core feature of JSONXX. After pasting or uploading JSON, you see an editable table preview. Double-click any cell to edit, sort columns by clicking headers, hide columns, insert or delete rows, and undo/redo changes. All edits are reflected in the final export.
Yes. Nested JSON objects are automatically flattened using dot notation (e.g., user.address.city becomes the column header). NDJSON (Newline-Delimited JSON) is auto-detected and each line becomes a separate row. Single JSON objects and API wrapper responses (e.g., {"data": {"items": [...]}}) are also handled automatically.
Yes. JSONXX is completely free with no signup required. Convert as many JSON files as you need.