Parquet viewer & reader online
query it with SQL in your browser

Open Apache Parquet files, view their contents, explore the schema, and run full SQL queries — no server, fully local. Your data never leaves your machine.

Open App — It's Free See how it works

query.sql

SELECT department, COUNT(*) as employees,
       AVG(salary) as avg_salary
FROM 'company_data.parquet'
GROUP BY department
ORDER BY avg_salary DESC;

5 rows returned 42ms Processed 1.2M rows

What is Parquet Explorer?

Parquet Explorer is a free online Parquet viewer and reader. Open any .parquet file directly in your browser to view its contents, inspect the schema, and query the data with SQL — without uploading anything to a server. It's the fastest Parquet explorer for previewing, filtering, and exporting your data completely privately.

Unlike desktop tools, there is nothing to install and no need for Python, Pandas, or Spark: just drop your file and start reading it. It handles files up to ~1GB thanks to DuckDB and WebAssembly, all inside the browser.

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.

Frequently asked questions

Is my data safe?

Yes. Your Parquet files are processed entirely in your browser using WebAssembly. They never leave your machine — we don't even have a server to send them to.

What's limited in the free plan?

Only the number of files. You can load 1 file and run any SQL query on it — no row limits, no feature restrictions. You need Pro to load multiple files and JOIN them.

How large can my files be?

DuckDB can handle files up to ~1GB comfortably in most modern browsers. Larger files depend on your device's available RAM.

Can I cancel anytime?

Yes, you can cancel your Pro subscription at any time. You'll keep Pro access until the end of your billing period.

Ready to explore your data?

No sign-up required. Open the app, drop a file, and start querying.

Open Parquet Explorer

100% free. Created by ChristopherEspejo · christmasdmin@gmail.com

Parquet viewer & reader online query it with SQL in your browser