Donut Compact
Donut Compact
231+ Templates
Choose from bar charts, line charts, pie charts, radar, funnel, gauge, heatmap, candlestick, Sankey, treemap, sunburst, and more.
AI-Powered Suggestions
Describe what you want to visualize in one sentence. AI picks the best chart type and generates sample data automatically.
Three Visualization Engines
ECharts for data charts, Mermaid for flowcharts and diagrams, AntV Infographic for visual presentations. All in one tool.
Zero-Code, Real-Time Preview
Edit data in a simple form, see results instantly. No programming needed. Perfect for non-technical users.
Insert Directly into Notes
Charts are inserted as native NoteRich content blocks. Edit them anytime, with full Markdown and rich-text support.
Privacy-First, 100% Local
All chart data is processed locally in your browser. Your data never leaves your device unless you explicitly use the AI suggestion feature.
Why Choose NoteRich Chart Expert?
Zero-Code Chart Creation for Everyone
NoteRich Chart Expert eliminates the barrier to data visualization. No need to write JavaScript, Python, or any code. Simply pick a template, edit the data in a form, and your chart is ready. With 231+ templates covering bar charts, line charts, pie charts, radar, funnel, gauge, heatmap, candlestick, Sankey, treemap, sunburst, and more, you can find the perfect visualization for any data scenario.
AI-Powered Smart Chart Recommendations
Not sure which chart type to use? Just describe your data in one sentence, and our AI will recommend the best chart type and generate sample data for you. The AI understands natural language and supports multiple languages, making chart creation accessible to everyone regardless of technical background.
Three Powerful Visualization Engines in One Tool
Chart Expert combines three industry-leading visualization libraries: Apache ECharts for interactive data charts, Mermaid.js for flowcharts and diagrams, and AntV Infographic for visual presentations. Switch between engines seamlessly without leaving the editor.
Privacy-First, 100% Local Processing
All chart data is processed locally in your browser. Your data never leaves your device unless you explicitly use the AI suggestion feature. NoteRich Chart Expert uses modern browser technologies like IndexedDB for storage and Canvas/SVG for rendering, ensuring maximum privacy and performance.
Popular Chart Types
Explore all chart types available in Chart Expert:
Bar Chart
Classic vertical bar chart, ideal for comparing values across categories.
Horizontal Bar Chart
Horizontal bars — clearer when category names are long or for rankings.
Stacked Bar Chart
Multiple stacked series showing both totals and composition.
Line Chart
Shows trends over time.
Smooth Line Chart
Curved line chart for softer trends.
Area Chart
Line chart with shaded fill, emphasizing cumulative volume.
Pie Chart
Shows the share of each category in the total.
Donut Chart
Hollow pie chart — center can display a key metric.
Scatter Plot
Shows the distribution of two variables.
Radar Chart
Multi-dimensional comparison, commonly used for capability assessment.
Funnel Chart
Shows conversion funnels, commonly used in operations analysis.
Gauge
Shows a single-value metric — completion rate or score.
Heatmap
Uses color intensity to show strength in 2D data.
Calendar Heatmap
GitHub-style calendar heatmap for daily activity.
Stacked Horizontal Bar
Stacked horizontal bars — composition across long category labels.
Diverging Bar (Population Pyramid)
Diverging bar — male values negative, female values positive.