Parquet to JSON
Read Apache Parquet rows and export JSON locally.
Drop your files here
Make something new. Keep everything private.
Multiple files welcome · processed one at a time
Select a tool to see its supported formats and conversion limits. Large files may exceed your browser’s memory.
Before processing large files
On phones and tablets, start with files under 20 MiB and keep this tab in the foreground. Video, OCR and 3D operations can use several times the input size in memory. Desktop browsers generally have more room, but the 128 MiB job limit is not a guarantee that every file will fit. Smaller batches reduce memory pressure.
Supported input formats
- Apache Parquet columnar data (.parquet)
Output format
JavaScript Object Notation (.json)
Support applies to this conversion direction. Check the limits below for features that may change or be discarded.
Compare all supported formats and conversion limits →How to use Parquet to JSON
- Add your supported file using the chooser or drop zone.
- Review the settings and conversion limits before processing.
- Select Convert files, then download the result.
What to expect
- Maximum 64 MiB and 100,000 rows / 2 million values. Uncompressed and Snappy files are supported; other codecs are rejected. Integers outside the JavaScript safe range use decimal strings; smaller integers remain numbers. Timestamps use ISO text and binary values use hexadecimal objects. Nested values become JSON text in CSV.
Engine: Parquet reader. The engine may need a first-use download. Your file stays in this browser session.Check conversion engines and offline requirements.
About this conversion
Is parquet to json free?
Yes. This tool runs on your device without an account or a conversion fee.
Are files uploaded during conversion?
File processing happens locally in your browser. Engines may download their code on first use; your input files are not sent to a conversion server. Read how file privacy works.
What if conversion fails?
Check that the file matches a supported input, review the engine’s limitations and try a smaller representative file. If the engine cannot load, check its engine assets and browser requirements. The app reports failures without switching to a remote converter.
Continue with your output
These tools accept this tool’s output format. Each step has its own settings and fidelity limits.
- JSON to CSV
Convert JSON locally with an explicit structured-data mapping.
- JSON to TSV
Convert JSON locally with an explicit structured-data mapping.
- JSON to YAML
Convert JSON locally with an explicit structured-data mapping.
- JSON to XML
Convert JSON locally with an explicit structured-data mapping.
- JSON to SQLite database
Create a portable, single-table SQLite database from JSON records.
- JSON to JSON Lines
Write a JSON array of records as one compact object per line for data pipelines.
More data tools
- Parquet to CSV
Read Apache Parquet rows and export CSV locally.
- Inspect Parquet schema
Read Parquet column schema, row groups and metadata without exporting row data.
- CSV to JSON
Convert CSV locally with an explicit structured-data mapping.
- CSV to TSV
Convert CSV locally with an explicit structured-data mapping.
- CSV to YAML
Convert CSV locally with an explicit structured-data mapping.
- CSV to XML
Convert CSV locally with an explicit structured-data mapping.