Query Parquet files
with SQL in your browser
Open Apache Parquet files, explore schemas, and run full SQL queries — no server, no uploads. Your data never leaves your machine.
SELECT department, COUNT(*) as employees,
AVG(salary) as avg_salary
FROM 'company_data.parquet'
GROUP BY department
ORDER BY avg_salary DESC; Everything you need to explore Parquet
A powerful SQL editor that runs entirely in your browser. No installation, no data leaks.
Full SQL Support
SELECT, WHERE, GROUP BY, JOIN, UNION, window functions — the full power of DuckDB SQL at your fingertips.
100% Private
Your files never leave your browser. No uploads, no server processing. Everything runs locally using WebAssembly.
Blazing Fast
DuckDB processes millions of rows in seconds. Virtualized table renders only visible rows — no lag, ever.
Drag & Drop
Drop your .parquet file and start querying instantly. The file is registered as a SQL table automatically.
Export Results
Export query results to CSV for free. Pro users can export to JSON, Excel, and Parquet formats.
Multi-file JOINs
Pro: Load multiple Parquet files and JOIN them together. Auto-merge files with matching schemas.
How it works
Three steps. Zero configuration.
Drop your file
Drag and drop any .parquet file into the browser. It stays on your machine.
Write SQL
Use the built-in SQL editor with syntax highlighting and autocomplete.
Get results
See results instantly in a fast, virtualized table. Export to CSV or other formats.
Ready to explore your data?
No sign-up required. Open the app, drop a file, and start querying.
Open Parquet Explorer