Chart Builder
Load any data file and instantly visualize it as a bar chart, line chart, scatter plot, or histogram. Choose columns, pick an aggregation, and draw — pure SVG, no external library, no upload required.
More Power Tools
SQL Query Tool
Write SQL queries against any loaded file. Join, aggregate, filter across multiple files.
Data Profiler
Profile any file — row counts, column types, null rates, and statistics.
Join Files
Join two files with INNER, LEFT, RIGHT, or FULL OUTER joins on any key column.
Find Duplicates
Find duplicate rows across any column combination and export the results.
Pivot Table
Build pivot tables from any data file — rows, columns, values, and aggregation.
Data Catalog
Browse free public datasets and query them directly in the SQL editor.
Mock Data Generator
Generate realistic sample data — names, emails, dates, numbers, and more.
Frequently Asked Questions
Is my data uploaded when I build a chart?
No. The file is parsed and charted entirely in your browser — the chart is rendered as pure SVG on your device and nothing is sent to a server.
What chart types are supported?
Bar charts, line charts, scatter plots, and histograms. Pick the columns for each axis, choose an aggregation (sum, count, average, min, max) where relevant, and the chart redraws instantly.
What file formats can I chart?
CSV, TSV, Parquet, JSON, NDJSON, Excel (XLSX), YAML, and Apache Arrow — any format the site’s converters read can be charted directly.
Can I export the chart?
Yes — the chart is standard SVG, so you can right-click to copy or save it, and it scales cleanly at any size for slides and documents.
How much data can the Chart Builder handle?
Aggregation happens in a vectorised SQL engine before drawing, so files with hundreds of thousands of rows chart quickly — the chart only ever renders the aggregated series, not every raw row.