JSON to SVG Chart
Turn a JSON array into a clean SVG bar chart by selecting which field to use as the x-axis label and which numeric field to use as the bar height. You can add an optional chart title, pick a custom bar color, and toggle value labels above each bar — then copy the SVG markup or download it as a file. All rendering is done directly in your browser with no dependencies or server calls needed.
JSON
Label Field
Value Field
Chart Title
Bar Color
SVG Chart
What is JSON to SVG Chart Renderer?
Numbers in a JSON array tell you less than a chart of those numbers. When you have a small dataset and need a quick visualisation — for a README, a documentation page, a presentation slide — setting up a charting library is overkill. This tool converts a JSON array with label and value fields directly into a scalable SVG chart that you can embed in any HTML page, import into Figma, or include in a Markdown document via an img tag. Choose bar (vertical or horizontal), line, pie/donut, or scatter chart type. Customise the colour palette, axis labels, font, dimensions, and whether to show value annotations on each data point. The output is pure SVG markup — resolution-independent vector graphics that scale to any screen size without pixelation, importable into design tools, and styleable with CSS after embedding. No charting library is loaded, no canvas is used, and no data is sent to a server: the SVG is assembled entirely from coordinate calculations and standard SVG elements in your browser.
How to Use
- 1
Paste Your JSON Data
Paste a JSON array of objects with numeric values, or a flat key-value object. The tool detects the data shape and suggests the most appropriate chart type automatically.
- 2
Configure Chart Options
Choose chart type (bar, line, pie, or scatter), set dimensions, axis labels, colour palette, and whether to include a legend and value labels on each data point.
- 3
Render to SVG
Click "Generate SVG". The chart is constructed as pure SVG markup — scalable vector paths, text elements, and coordinate-based shapes — with no canvas or raster rendering.
- 4
Download or Embed the SVG
Download the .svg file for use in design tools, or copy the SVG markup to embed directly in an HTML page using an <img src="chart.svg"> tag or inline <svg> element.
Common Use Cases
Quick Data Visualisation
Render JSON numeric arrays or key-value data as SVG bar charts or tree diagrams for embedding in web pages, documentation, or email templates without a charting library.
Scalable Infographic Generation
Convert structured JSON data into SVG illustrations that scale perfectly on any screen resolution — ideal for dashboards, reports, and print materials that require vector graphics.
CI/CD Pipeline Metrics Badges
Generate SVG badges from JSON metric data (build status, coverage percentage, version numbers) for embedding in GitHub READMEs or documentation sites as scalable status indicators.
Lightweight Chart Embedding
Embed an SVG chart generated from JSON data directly in HTML pages or markdown files without external JavaScript dependencies, keeping pages fast and portable.
Conversion Examples
JSON Array → SVG Bar Chart
Numeric values in a JSON array become proportional bars in an SVG chart.
Input JSON
[
{"label": "Jan", "value": 120},
{"label": "Feb", "value": 95},
{"label": "Mar", "value": 148},
{"label": "Apr", "value": 132}
]Output CSV
<svg viewBox="0 0 400 200" xmlns="http://www.w3.org/2000/svg"> <!-- Bar: Jan height=120px --> <!-- Bar: Feb height=95px --> <!-- Bar: Mar height=148px --> <!-- Bar: Apr height=132px --> <!-- X-axis labels and gridlines --> </svg>