Free, privacy-first Parquet to JSON converter. Transform Parquet files to JSON format directly in your browser. No uploads, no servers.
DuckDB reads Parquet natively with zero conversion overhead. Column metadata, row groups, and compression are handled automatically for fast loads.
Your Parquet file stays on your device. No data is sent to any server. Everything runs locally in your browser using DuckDB WASM.
Each row becomes a separate JSON object on its own line. NDJSON is widely supported by streaming parsers, jq, and data ingestion pipelines.
Filter rows, rename columns, add calculations, or aggregate data before converting. Shape the data exactly how you want it in the JSON output.
No sign-up, no trial, no watermarks. Convert as many Parquet files to JSON as you need, completely free.
Once loaded, ExploreMyData works without an internet connection. Convert Parquet to JSON anywhere, even without Wi-Fi.
Drag a .parquet file onto the page. DuckDB reads it instantly.
Filter rows, select columns, or add calculations before export.
Click Export, choose JSON, and download your NDJSON file.
Open exploremydata.com/app, drag your .parquet file onto the page, then click Export and choose JSON. The conversion runs entirely in your browser using DuckDB WASM.
ExploreMyData exports NDJSON (Newline Delimited JSON), where each row is a separate JSON object on its own line. This format is widely supported by data tools and streaming parsers.
DuckDB reads nested structs and arrays from Parquet files. Nested fields appear as JSON objects and arrays in the output, preserving the original structure.
Yes. You can remove columns, reorder them, rename them, or filter rows before exporting. Only the data visible in your current view gets included in the JSON output.
No sign-up, no upload, no tracking. Just drop your file and export.
Convert Parquet to JSON Free