Explore Your Parquet Files
View, query, and edit Parquet, CSV, and JSON files entirely in your browser. No uploads to servers, no data leaves your machine. SQL-powered.
No file handy?
Drop your file here or click to upload
Parquet up to 500 MB; CSV and JSON up to 2048 MB (compressed on disk). Browser memory use depends on content.
Once you open a file, it will be saved here for quick access.
How It Works
Three simple steps to start working with your data files
Upload your file
Drop a file, open a saved copy, or paste a public or presigned HTTPS link. Everything stays local.
Query and explore
Use SQL to inspect, filter, and transform your data.
Export results
Download your modified data as Parquet, CSV, or JSON.
Why Use Parquet Fox
Built for data engineers, analysts, and backend developers who work with parquet files daily
Instantly view schema, row counts, column types, and sample data without writing any SQL.
Debug pipeline outputs, check compression ratios, and validate parquet metadata from Spark or Pandas.
Run SQL queries to filter, transform, or join data, then export the results immediately.
No server uploads, no account required. Your files never leave your device — a hard requirement in finance, health, and legal environments.