Simple Chart Generator
Create simple bar, line, and pie charts from data. Download as PNG.
Generate simple charts from your data. Supports bar charts, line charts, and pie charts. Customize title, labels, and values. Download as high-quality PNG images. Perfect for quick data visualization.
Spreadsheet software is overkill when you need one chart for a slide or a README. This generator takes two comma-separated lists, labels and values, plus an optional title, and renders a bar, line, or pie chart onto an 800 by 500 pixel canvas that downloads as a PNG with a clean white background, ready to paste into documents, presentations, or chat.
Each chart type annotates itself. Bar charts print the exact value above every bar and assign each bar a distinct color spread evenly around the color wheel. Line charts draw a single indigo series with a dot and value label at every point. Pie charts label every slice with its name and its percentage of the total, calculated to one decimal place. Values that fail to parse as numbers are silently dropped, so a stray typo in the list will not break rendering, and extra whitespace around entries is trimmed.
There is no account, watermark, or export limit. The chart is drawn entirely on a local canvas, so sales figures or survey results never leave your computer. Your last chosen chart type is remembered between visits, while the data fields reset so each session starts clean. For best legibility keep a series under about 12 points for bars and lines; the 600-pixel plotting area gets crowded beyond that.
- 1
Enter title, labels, and values
Type a chart title, then comma-separated labels (Jan,Feb,Mar) and matching numeric values (12,19,3). Whitespace around entries is trimmed automatically.
- 2
Pick a chart type
Choose bar, line, or pie and click Generate Chart. The chart renders instantly with values labeled on each bar, point, or slice.
- 3
Download the PNG
Click Download Chart to save an 800 by 500 pixel PNG named chart.png, ready for slides, documents, or messaging apps.
Slide deck visuals
Turn six months of signup numbers into a labeled bar chart for a status update without opening a spreadsheet.
README and documentation charts
Generate a benchmark or adoption comparison as a PNG and embed it directly in a GitHub README or internal wiki page.
Homework and reports
Plot survey results as a pie chart with automatic percentage labels for a school or college assignment.
Quick trend check
Paste a short series of weekly metrics as a line chart to eyeball the direction before a meeting.
What data format does it expect?
Two comma-separated lists: one of labels and one of numeric values, in matching order. Spaces around entries are ignored, and anything in the values list that is not a number gets filtered out before drawing.
How many data points can I plot?
There is no hard cap, but the plotting area is 600 pixels wide, so bars and line points get cramped beyond roughly 12 entries. Pie charts stay readable a little longer because slices are labeled outside the circle.
Can I customize the colors?
Colors are assigned automatically: bars and pie slices get evenly spaced hues around the color wheel, and line charts use a fixed indigo. Title, labels, and values are the customizable inputs.
What are the dimensions of the exported image?
Every chart exports as an 800 by 500 pixel PNG with a white background and the title centered at the top. That size holds up well in slides and documents without resizing.
Is my data kept private?
Yes. The chart is rendered by your own browser onto a local canvas and the PNG is created on your machine, so figures like revenue, grades, or survey responses are never transmitted to a server.