# Static PNG embeds

> Render a Flax chart or dashboard to a static PNG via GET /api/embed/image for surfaces that block iframes

*[View this page in the Flax docs](https://flax-analytics.com/docs/developers/embed-png)*

Some surfaces — locked-down intranets, email, wikis that strip iframes — won't render a live embed. For those, Flax renders a chart or dashboard to a static PNG image. This page is for developers embedding where iframes are unavailable.

## Endpoint

```http
GET /api/embed/image?t=<token>
```

`t` is the per-resource [embed token](/docs/developers/embedding-overview). The response is a PNG of the same session-less `/embed` view an iframe would show, so you can use it anywhere an image URL is accepted.

## How it renders

Flax renders the token-authenticated embed page with **headless Chromium** and returns the resulting image. Because the render navigates to the token's own embed URL, the data is fetched as the token's service principal and stays scoped under [row-level security](/docs/modeling/row-access-filters).

Rendered images are served from a **bounded cache**, so repeated requests for the same resource are fast and don't re-render every time.

> [!NOTE]
> A PNG is a snapshot, not an interactive view. For live filtering and drill-down, use an [iframe embed](/docs/developers/embed-iframe) instead.

## Related

- [Embedding overview](/docs/developers/embedding-overview)
- [Iframe embeds](/docs/developers/embed-iframe)
- [Exporting](/docs/visualizations/exporting)