How to Convert JSON to Parquet Online (Free, No Upload)

Convert JSON to Parquet in seconds, right in your browser, with no install and no account.

JSON is easy to produce but slow and bulky to analyze at scale. Analytics tools prefer Parquet, which is compact and keeps a type for every column.

The converter flattens your JSON records into columns, detects each column type, and writes a Parquet file you can load straight into your analytics tool. Nested objects become columns such as user.name.

Your file is processed in your browser and is not uploaded to a server, so it is safe to use with customer or business data.

Open the JSON to Parquet converter

How to use the JSON to Parquet converter: step by step

  1. Open the JSON to Parquet converter.
  2. Drop your file into the box, or paste the data.
  3. Click Convert.
  4. Copy the result, or click Download to save the Parquet file.

When to use the JSON to Parquet converter

  • Loading API or log data into a data lake
  • Shrinking large JSON files
  • Preparing JSON for Spark, DuckDB or BigQuery
  • Keeping numbers and dates typed correctly

Tip: Use a JSON array of records for the best result.