Free CSV Explorer Online

Open, filter, sort, and transform CSV files directly in your browser. No upload required. Powered by DuckDB.

Everything You Need for CSV Files

Drag and drop

Open any .csv or .tsv file instantly. Auto-detects delimiters, headers, and column types.

Column statistics

View histograms, value distributions, min/max/mean for every column automatically.

Filter and sort

Filter rows by value, range, or date. Sort ascending or descending on any column.

SQL queries

Run full SQL queries on your CSV data using DuckDB, a real SQL engine in your browser.

Transform and export

Apply 32+ operations: aggregate, pivot, join, add columns. Export results as CSV.

100% private

Your CSV file never leaves your browser. No upload, no server, no tracking.

How It Works

1

Drop your .csv

Drag a CSV file onto the page.

2

Explore instantly

Browse columns, view statistics, filter and sort.

3

Transform and export

Apply operations, build pipelines, export as CSV.

Frequently Asked Questions

How do I open a CSV file online?

Go to exploremydata.com/app and drag your CSV file onto the page. It opens instantly in your browser.

Is my CSV data uploaded to a server?

No. ExploreMyData processes everything locally in your browser using DuckDB WASM. Your data never leaves your device.

Can I run SQL on a CSV file?

Yes. ExploreMyData uses DuckDB, a full SQL engine, running entirely in your browser. You can write SQL queries or use the visual operation picker.

What's the maximum CSV file size?

File size is limited by your browser's memory. Most browsers handle files up to several hundred MB. DuckDB processes millions of rows efficiently.

Ready to explore your CSV data?

No sign-up, no upload, no tracking. Just open your file and go.

Start Exploring, It's Free