Overview
Image-Charts generates chart images and QR codes on-the-fly via a simple GET request URL, with chart parameters encoded directly into the query string. It supports bar, line, pie, radar, and other chart types and returns a PNG image you can embed directly in emails, PDFs, or web pages without any client-side JavaScript. No authentication is required for basic usage.
Beginner Tip
The entire API is a single URL — encode all your chart options as query parameters and the response is the image itself. Try it directly in a browser: paste the URL and you see your chart immediately. This makes it perfect for generating charts inside emails or server-side documents where JavaScript cannot run.
Available Data
The kind of data this API exposes, based on its documentation. We could not call the endpoint to confirm the exact field names.
Example Response
Illustrative shape only — we were not able to call this endpoint (it requires credentials or exposes no public sample URL), so the fields below show the kind of data this API returns rather than a recorded response.
{
"image_url": "https://api.example.com/qr/abc123.png",
"data": "https://example.com",
"format": "png",
"size": "300x300"
} Field Reference
(binary PNG body) The chart or QR code rendered as a PNG image returned directly in the response body. Content-Type (response header) Always image/png for successful chart requests. X-Image-Charts-Info (response header) Informational header present on some responses indicating rendering metadata or warnings. Implementation Example
Calls a real endpoint of this API. Replace any placeholder credentials with your own key.
const url = "https://image-charts.com/chart?cht=bvg&chs=300x200&chd=t:40,60,80,20&chl=Q1|Q2|Q3|Q4";
const response = await fetch(url);
if (!response.ok) throw new Error(`Request failed: ${response.status}`);
const data = await response.json();
console.log(data); What Can You Build?
Note: These code examples are AI-generated and unverified. Always refer to the official API documentation for accurate usage.
Common Errors & Troubleshooting
Generated guidance based on this API's documentation, not observed by us. Treat it as a starting point and check against the provider's own error reference.
Metadata Score Breakdown
Estimated from metadata — endpoint not independently tested
Metadata estimate · endpoint not independently tested
Technical Specifications
Related Tags
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