Free · Browser-only · 100% Private

MongoDB to CSV Converter

Paste a MongoDB export and get clean, flattened CSV instantly. Nested documents, arrays, ObjectIds, and dates are unrolled automatically.

  1. 1. Paste Mongo JSON A JSON array or mongoexport NDJSON (one document per line) both work. Sample data is loaded.
  2. 2. Flatten options Choose dotted or bracket nested keys, and whether arrays are joined or kept as JSON.
  3. 3. Export CSV Copy or download. Nested fields become columns such as address.city.
Input · MongoDB JSON
Output · CSV
All conversion runs locally in your browser engine. Zero server processing or data storage.

MongoDB JSON to CSV Converter

MongoDB stores data as nested BSON/JSON documents, which makes importing query results into spreadsheets like Excel or Google Sheets awkward. DataPorter flattens nested schemas into tabular CSV format automatically.

Features

Frequently asked questions

Does DataPorter upload my data to a server?

No. Every conversion runs entirely in your browser using JavaScript. Nothing you paste is sent over the network, logged, or stored anywhere.

Is DataPorter free to use?

Yes — no signup, no usage limits, and no watermarks on the output files.

What file formats can DataPorter convert between?

SQL to CSV, MongoDB to CSV, SQLite to CSV, PostgreSQL to CSV, CSV to SQL INSERT statements, YAML to TOML, and JSON to TypeScript interfaces.

Can DataPorter handle large files?

Since conversion happens in your browser's memory instead of on a server, performance depends on your device. Files up to a few tens of thousands of rows typically convert instantly; very large files may slow down the tab.

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