Parquet API

Convert, inspect, and process parquet files with a simple REST API.

Start Using the API

Create an account to get your API key and start converting parquet files instantly.

Get API Key Login

Authentication

All requests require an API key.

X-API-KEY: your_api_key_here

Base URL

https://parquettocsv.com/api/parquet

Convert to JSON

Stream parquet data as JSON. Supports row limiting and column selection.

POST /to-json?rows=1000&columns=id,name,email

                curl -X POST "https://parquettocsv.com/api/parquet/to-json?rows=100&columns=id,name,email" \
                -H "X-API-KEY: your_key" \
                -F "file=@data.parquet"
            

columns: Comma-separated list of columns to include. Optional.
rows: Number of rows to return (max 100,000).

Convert to CSV

Download parquet as CSV. Supports row limiting and column selection.

POST /to-csv?rows=1000&columns=id,name,email

                curl -X POST "https://parquettocsv.com/api/parquet/to-csv?rows=500&columns=id,name,email" \
                -H "X-API-KEY: your_key" \
                -F "file=@data.parquet"
            

columns: Comma-separated list of columns to include. Optional.
rows: Number of rows to return (max 100,000).

Schema

Get column names and types.

POST /schema

                [
                { "name": "id", "type": "Int32", "nullable": false }
                ]
            

Summary

Get file metadata instantly.

POST /summary

                {
                "rowCount": 10000,
                "columnCount": 8,
                "rowGroups": 2
                }
            

Limits

✔ Max rows per request: 100,000
✔ File size depends on your plan
✔ Monthly request limits apply

Why Use This API?

✔ No Python or setup required
✔ Works directly with parquet files
✔ Streaming responses (fast + efficient)
✔ Perfect for automation pipelines