Data Visualizer
Upload CSV, JSON, or Parquet files and build interactive charts instantly. Bar, line, area, pie, and scatter — with aggregations, top-N filtering, and multi-dataset support.
100% In-Browser Processing. Your files never leave your device.
Build charts from your data
Drop one or more data files to instantly create bar, line, area, pie, and scatter charts.
or drag & drop files here · Multiple files supported
The Data Visualizer is a browser-based business intelligence (BI) tool that lets you load data files and immediately build charts without any server, database, or BI platform required. It supports CSV, JSON, and Parquet files — the most common formats in data engineering, analytics, and reporting workflows. You can load multiple files simultaneously, switch between datasets, and build multiple charts on the same dashboard.