Line Chart
The line chart is the go-to choice for showing how something changes over time. Points are connected by lines, making it easy to see upward trends, downward trends, or fluctuations at a glance. To actually show a trend line, you typically want 2+ data rows (points) for a single series. If you need multiple series (multiple lines), use the Multi-Line chart type instead.
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How to create a Line chart
- Start from a CSV/Excel file, paste data in the spreadsheet, or use Draw Chart to sketch a Line chart.
- Optional: import a chart screenshot and extract data automatically, then double-check the result.
- Optionally accept AI suggestions for chart type and style, or keep full manual control.
- Choose your Label column and select your Value column (numbers).
- Choose a template + theme, then adjust colors, patterns, and light effects to match your Line style.
- Export as PNG once the chart looks perfect.
When to use
- Showing trends over continuous time
- Many data points (20+)
- Rate of change is important
- Connecting data points makes sense logically
When to avoid
- Comparing discrete categories (use bar chart)
- Only a few data points
- Data is not sequential/ordered
Data requirements
Data format: One column for time/sequence, one column for values
Common use cases
Line chart comparisons
Line Chart vs Area Chart
Use an area chart when you want to emphasize volume over time. Use a line chart when exact values and trend clarity matter most.
Area Chart →Line Chart vs Multi-Line Chart
Choose a Line chart when it matches your data format (one column for time/sequence, one column for values).
Multi-Line Chart →Styling a Line chart
- Prioritize readability: shorter labels and fewer categories make a Line chart easier to scan.
- For presentations, pick a theme with strong contrast between text and background.
- Use subtle patterns or a light effect if bars/areas feel too flat or hard to separate.
- For dense time series, consider switching to a Line chart for a clearer trend story.
FAQ
How do you read a Line chart?
A Line chart is a way to visualize data formatted as: One column for time/sequence, one column for values. It works well for stock price history.
When should I use a Line chart?
Choose a Line chart when showing trends over continuous time and many data points (20+). For best results, keep labels readable and values numeric.
How do I make a Line chart from a spreadsheet?
Upload a CSV/Excel file, map the columns, and PrettyChart will generate a Line chart you can customize and export as PNG.
Does PrettyChart recommend a chart type and design automatically?
Yes. PrettyChart can suggest both the chart type and a design direction after upload — you can still tweak every detail.
Can I create a Line chart by drawing or from an existing chart image?
Yes. You can draw a chart or upload an image to extract values, then edit the Line chart like any other.
Is signup required to export a Line chart?
No signup is required — you can create, customize, and export your Line chart right away.
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