Turn nested JSON into a useful spreadsheet.

JSON is structured, but Excel expects a table

A JSON export often contains customer objects, nested addresses, arrays of line items, and optional fields. A basic converter either puts those objects into unreadable cells or silently loses structure. JSON Analyzer lets you inspect the document first, then choose the useful table.

From JSON to XLSX in three steps

1. Open a .json, .jsonl, or .ndjson file.
2. Switch to Flat view and use column filters or a structural query to select the rows you need.
3. Export the visible view to XLSX. Numbers remain numeric, and commas, quotes, and newlines inside text remain intact.

No upload required

The browser version reads the file locally. The desktop app is fully local-first. Ordinary viewing, filtering, flattening, and export do not send your JSON to JSON Analyzer or any third party.

Useful for real exports

Use it for API responses, database exports, support bundles, analytics events, fixtures, and logs. You can also export CSV or Markdown when Excel is not the final destination.