Flatten JSON and JSONL files into CSV tables. No uploads, no servers, all processing in your browser.
Drop .json or .jsonl files and they load automatically. Handles arrays of objects, single objects, and newline-delimited JSON.
DuckDB automatically flattens nested JSON objects into table columns. Complex structures become queryable rows and columns instantly.
JSON arrays within objects? Use the built-in Unnest operation to expand arrays into separate rows for proper tabular analysis.
See your JSON data as a table before exporting. Verify the flattened structure, check column types, and inspect values.
Filter, sort, rename columns, add calculations, or aggregate data before exporting to CSV. Clean your data on the way out.
Your JSON data never leaves your device. All parsing and conversion happens locally in your browser. No upload, no server, no tracking.
Drag a .json or .jsonl file onto the page. DuckDB parses and flattens it.
Browse the flattened data, unnest arrays, filter or transform as needed.
Click Export, choose CSV, and download your flattened data.
Open exploremydata.com/app, drag your JSON or JSONL file onto the page, and it automatically flattens nested structures into a table. Then click Export and choose CSV.
Yes. DuckDB automatically flattens nested JSON structures into columns. Nested objects become dot-notation columns (e.g., address.city). You can also use the Unnest operation for arrays.
JSON is a single object or array. JSONL (JSON Lines) has one JSON object per line, which is common for log files and streaming data. ExploreMyData handles both formats automatically.
No. ExploreMyData processes your JSON file entirely in your browser using DuckDB WASM. Your data never leaves your device. No server, no cloud, no tracking.
No sign-up, no upload, no tracking. Just drop your file and export.
Convert JSON to CSV Free