JPEG Dependency Graph API
Generate dependency graph images in JPEG format with a single HTTP request. Compressed raster format for web pages and social media. ChartQuery renders publication-ready JPG output that works everywhere, dashboards, emails, documents, and print.
Live Preview
This image is generated in real time by the ChartQuery API, no static assets.
Quick Start
A single HTTP request is all you need. No SDK, no dependencies.
curl -X POST https://api.chartquery.com/v1/diagram \
-H "Content-Type: application/json" \
-d '{"diagram_type":"mermaid","diagram_source":"graph TD\\n A[Start] --> B{Decision}\\n B -->|Yes| C[Process]\\n B -->|No| D[End]","output_format":"jpg"}' \
--output diagram.jpgHow It Works
Send a Request
POST a JSON body or use GET with query parameters. No SDK or library needed.
Get Your Image
ChartQuery renders your chart, diagram, barcode, QR code, or label and returns it as PNG or SVG.
Use It Anywhere
Embed in emails, PDFs, dashboards, documents, or print directly. Works everywhere images work.
Features
JPEG Output
Compressed raster format for web pages and social media. Every response returns a valid JPG file ready to use, no post-processing needed.
Sub-500ms Response
Charts, diagrams, barcodes, and labels render in under 500ms. Get your JPEG file back before the next line of code runs.
No Dependencies
No rendering library, no headless browser, no canvas. A single HTTP request returns a JPEG image. Works from any language or platform.
Pixel-Perfect at Any Size
Set width, height, and device_pixel_ratio for Retina-quality JPEG output up to 4000px.
Use Cases
- Generate diagram thumbnails for content management systems
- Create lightweight preview images for web galleries
- Produce compressed diagram images for social media sharing
- Generate email-safe diagram attachments with small file sizes
Frequently Asked Questions
How do I generate dependency graph as JPEG with an API?
Send a request to the ChartQuery diagram endpoint with format: "jpg" in your JSON body (POST) or as a query parameter (GET). The API returns a JPEG file directly in the response body. No API key is required for basic usage.
Why choose JPEG over other output formats?
Compressed raster format for web pages and social media. JPEG files are smaller than PNG, making them ideal for web thumbnails and social media where file size matters more than perfect quality.
What is the maximum resolution for JPEG output?
Set width and height up to 4000px and device_pixel_ratio up to 3 for Retina-quality output. The default is 800x400px at 1x pixel ratio.
Is the JPEG dependency graph API free?
Yes. Anonymous access gives you 60 requests per hour without an API key. A small watermark is added to free-tier output. Paid plans remove the watermark and increase rate limits.
Can I embed JPEG dependency graph in emails and documents?
Yes, JPEG images work everywhere. Use them in emails, web pages, messaging apps, and social media posts.
What content type does the API return for JPEG?
The API returns image/jpeg in the Content-Type header. The response body is the raw JPEG file data, ready to save to disk or stream to the client.
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Start generating charts today
No API key required to get started. Generate charts, diagrams, and more with a single HTTP request.
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