Free OnlineAI Chart Generator
How to Create a Chart With AI
Frame the Data Question
Choose the Visual Structure
Generate, Verify, and Refine
Export for the Final Destination
Build Clear Data Stories With Mew Design
Turn Source Files Into Chart Briefs
Upload spreadsheets or source documents to the dedicated file library, reference them with @, and tell Mew which rows, columns, findings, or tables matter. You can reference up to three documents in one message when a comparison needs multiple sources.
Match the Chart to the Question
Use bars for category comparisons, a small pie or donut for part-to-whole, scatter plots for relationships, stacked charts for composition, and lines for trends. For a time-series-focused workflow, try the AI Line Graph Generator.
Keep the Data Story Readable
Ask for a descriptive title, direct labels, sensible number formats, concise annotations, and a visible source note. The AI graph generator can also reduce unnecessary colors so the takeaway does not get lost in decoration.
Revise the Visual Through Chat
Click Chat Edit and request a different chart type, clearer axis range, fewer categories, a stronger callout, revised legend, or new spacing. Refinement happens in the design conversation instead of a maze of chart menus.
Apply Brand and Accessibility Cues
Upload a logo or visual reference, name brand colors and fonts, and ask for sufficient contrast, direct labels, or patterns so meaning does not depend on color alone. Always review the final chart for your audience's accessibility needs.
Create Charts for Real Deliverables
Try the free AI chart generator with signup credits, refine a watermark-free design, and export a static PNG, JPG, or PDF. Add it to a slide, report, proposal, lesson, or a broader AI-generated infographic.
How to Prompt AI for a Useful Chart
- Define the data scope: Name the file, sheet, table, columns, filters, date range, and any calculation or aggregation the chart should use.
- State the visual question: Say whether viewers need to compare categories, see change over time, understand composition, find a relationship, or spot an outlier.
- Specify chart elements: Include the chart type or ask for a recommendation, then name the title, axes, units, legend, labels, annotations, takeaway, and source note.
- Design for the destination: Mention slide, report, paper, classroom, or social use; add the aspect ratio, brand palette, font tone, contrast needs, and final export format.
AI Chart Prompts for Real Data Questions
Sales Comparison: Use @sales-by-region.xlsx to create a 16:9 horizontal bar chart of Q2 revenue for North, South, East, and West. Sort descending, format values in USD thousands, use one navy highlight for the leader, label every bar directly, add a one-sentence takeaway, and include the source note for an executive presentation.
Marketing Mix: Turn @acquisition.csv into a donut chart showing the percentage of new customers from Organic Search, Paid Search, Referral, Events, and Partners. Keep five slices, place percentages beside category names, highlight the largest source, and use a colorblind-conscious palette for a monthly marketing report.
Research Relationship: Create a scatter plot from @study-results.csv with Weekly Study Hours on the x-axis and Exam Score on the y-axis. Add a simple trend line, label the sample size, highlight the largest outlier, include a neutral research title and source note, and use a clean 16:9 paper figure layout.
Budget Composition: Make a 100% stacked column chart comparing department budget share in 2025 and 2026 for Product, Sales, Marketing, Operations, and Support. Show percentages, keep the stack order consistent, use direct labels where space allows, and add an annotation for the largest year-over-year shift.
Campaign Performance: Create a ranked bar chart comparing conversion rate for six campaigns against a 4% target. Use a thin target marker, format values as percentages with one decimal place, color only campaigns above target in blue, and design the result for a concise client report.
Report to Chart: Read the quarterly metrics table in @board-report.pdf and create one column chart comparing revenue, operating cost, and gross profit across Q1-Q4. Use USD millions, group the three series by quarter, include the report title and page as the source note, and do not add values that are not present in the document.
