Are my CSV datasets uploaded to a remote server?

No. All CSV parsing, data profiling, and statistical distribution computations execute strictly in your local browser memory using PapaParse and Web Workers. Your data never leaves your device.

What statistics does the CSV Profiler compute?

For each column, the profiler automatically detects data types (Numeric, String, Date, Boolean), counts null/missing values, distinct values, and calculates minimum, maximum, mean, median, and variance for numeric columns.

CSV Explorer & Data Profiler Client-Side Analytics

Open any CSV/TSV spreadsheet, inspect column data types, find nulls and outliers, and review summary statistics.

📊

Drop CSV or TSV file here, or click to browse

Supports millions of data cells with 100% in-browser privacy

Frequently Asked Questions

What file size limits apply to in-browser CSV exploration?

Because data is processed locally without server timeouts, files with hundreds of thousands of rows parse smoothly depending on your machine's available RAM.

Can I sort by any column in the data grid?

Yes. Click on any column header in the table to toggle ascending or descending sorts. The table engine handles both numeric and alphabetical sorting correctly.