# mermaid.ink

Category: [Chart APIs](https://free-web-services.com/web-services/graphics/charts/)  
Page: https://free-web-services.com/web-services/graphics/charts/mermaid-ink.html  
Documentation: https://mermaid.ink/

mermaid.ink turns Mermaid diagram code into images: flowcharts, sequence diagrams, Gantt charts, pie charts and more, for example to show a diagram in a README or e-mail. Encode the diagram (as the Mermaid Live Editor does) and append it to mermaid.ink/img/ for JPEG, PNG or WebP, /svg/ for SVG or /pdf/ for PDF, with theme, background and size options. Free and open source, no key needed.

- API key: Not needed
- Pricing: Free and open source, no key needed.
- From the browser: Yes (CORS)
- Interface: HTTP-GET
- Provider: mermaid.ink
- Last checked: Working on November 1st, 2026

Example request:

```sh
curl 'https://mermaid.ink/img/Z3JhcGggVEQKICAgIEEtLT5C'
```

The JavaScript works in a web page as well as in Node.js 18 or newer.