Quality Control Chart Maker

A Pareto chart combines a descending bar chart with a cumulative percentage line to apply the 80/20 rule to defect data. In quality control, it helps teams identify the small number of causes responsible for the majority of defects. By focusing on the 'vital few' rather than the 'trivial many,' improvement efforts deliver the biggest measurable impact. It is a core tool in Six Sigma, Lean, and ISO 9001 quality frameworks.

Yes — you can create, customize, and download Pareto charts at no cost with no account required. Every user also receives free AI credits to try AI-powered chart generation. Paid plans unlock more AI credits, CSV file upload, and embed codes for dashboards.

Enter each defect category and its frequency count in the data table. The tool automatically sorts bars from highest to lowest and overlays a cumulative percentage line. Toggle the 80% reference line to highlight where the vital few causes sit, then download or share the finished chart.

Absolutely. The chart follows the standard Pareto diagram format used in DMAIC and other Six Sigma methodologies — sorted bars, cumulative line, and optional 80% threshold. You can customize colors to match your organization's reporting standards and export to PNG or SVG for project documentation.

You need a list of defect or problem categories and the count (frequency) for each. This could come from a defect log, customer complaint database, inspection report, or support ticket system. The tool handles all calculations, sorting, and cumulative percentage computation automatically.

CSV and Excel file upload is available on the Pro plan. On the free plan, you can type or paste your data directly into the table. Either way, the chart updates instantly as you add or change values.

There is no fixed limit on the number of categories. You can add as many rows as your quality data requires. For very large category lists, the chart scrolls horizontally so every bar remains readable.

Yes. The color settings panel lets you change the default bar color, the cumulative percentage line color, and the 80% reference line color independently. You can also toggle each element on or off to suit your reporting style.

You can export your Pareto chart as a high-resolution PNG (ideal for presentations and Word documents) or SVG (ideal for scalable, print-quality outputs). Both formats download instantly with no watermark on free and paid plans.

Yes. Describe your quality situation — for example, 'customer complaints at a hotel over the last quarter' — and the AI generates a realistic Pareto chart with categorized defect data and proper configuration. You can then replace the sample data with your actual figures and adjust colors and labels to finalize the chart.