Free Pareto chart maker
Create a Pareto Chart Online in Seconds
Build a clear Pareto chart from your category and value data. ParetoScope ranks contributors, draws the cumulative curve, and makes concentration easy to understand.
Interactive tool
Create your Pareto chart
Paste data, import CSV content, or use the sample dataset to see your vital few and cumulative contribution.
Turn raw data into a clear 80/20 decision
Edit, analyze, compare and export — everything runs in your browser.
Your Pareto insight
The first 3 categories account for 80.3% of the total. Start your investigation here rather than treating every category equally.
Why use ParetoScope?
Descending bars make the largest contributors immediately visible.
The cumulative line shows how quickly your result concentrates.
Use your own data or start with a sample dataset.
Export-ready visualization for reports, analysis, and presentations.
Common use cases
Defect and quality analysis
Rank your data, identify the largest contributors, and focus improvement work where it has the greatest potential impact.
Sales by product or customer
Rank your data, identify the largest contributors, and focus improvement work where it has the greatest potential impact.
Revenue concentration
Rank your data, identify the largest contributors, and focus improvement work where it has the greatest potential impact.
Inventory movement
Rank your data, identify the largest contributors, and focus improvement work where it has the greatest potential impact.
Support issue frequency
Rank your data, identify the largest contributors, and focus improvement work where it has the greatest potential impact.
Marketing campaign contribution
Rank your data, identify the largest contributors, and focus improvement work where it has the greatest potential impact.
Frequently asked questions
What is a Pareto chart?
A Pareto chart combines descending bars with a cumulative-percentage line to show which categories contribute most to a result.
Can I create a Pareto chart for free?
Yes. The core ParetoScope chart workflow is available without an account.
What data do I need?
You need categories and numeric values, such as product sales, defect counts, ticket types, or revenue by customer.