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excalidraw/packages/utils/README.md
Aakansha Doshi d6cd8b78f1
build: decouple package deps and introduce yarn workspaces (#7415)
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2023-12-12 11:32:51 +05:30

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Markdown

# @excalidraw/utils
## Install
```bash
npm install @excalidraw/utils
```
If you prefer Yarn over npm, use this command to install the Excalidraw utils package:
```bash
yarn add @excalidraw/utils
```
## API
### `serializeAsJSON`
See [`serializeAsJSON`](https://github.com/excalidraw/excalidraw/blob/master/src/packages/excalidraw/README.md#serializeAsJSON) for API and description.
### `exportToBlob` (async)
Export an Excalidraw diagram to a [Blob](https://developer.mozilla.org/en-US/docs/Web/API/Blob).
### `exportToSvg`
Export an Excalidraw diagram to a [SVGElement](https://developer.mozilla.org/en-US/docs/Web/API/SVGElement).
## Usage
Excalidraw utils is published as a UMD (Universal Module Definition). If you are using a module bundler (for instance, Webpack), you can import it as an ES6 module:
```js
import { exportToSvg, exportToBlob } from "@excalidraw/utils";
```
To use it in a browser directly:
```html
<script src="https://unpkg.com/@excalidraw/utils@0.1.0/dist/excalidraw-utils.min.js"></script>
<script>
// ExcalidrawUtils is a global variable defined by excalidraw.min.js
const { exportToSvg, exportToBlob } = ExcalidrawUtils;
</script>
```
Here's the `exportToBlob` and `exportToSvg` functions in action:
```js
const excalidrawDiagram = {
type: "excalidraw",
version: 2,
source: "https://excalidraw.com",
elements: [
{
id: "vWrqOAfkind2qcm7LDAGZ",
type: "ellipse",
x: 414,
y: 237,
width: 214,
height: 214,
angle: 0,
strokeColor: "#000000",
backgroundColor: "#15aabf",
fillStyle: "hachure",
strokeWidth: 1,
strokeStyle: "solid",
roughness: 1,
opacity: 100,
groupIds: [],
roundness: null,
seed: 1041657908,
version: 120,
versionNonce: 1188004276,
isDeleted: false,
boundElementIds: null,
},
],
appState: {
viewBackgroundColor: "#ffffff",
gridSize: null,
},
};
// Export the Excalidraw diagram as SVG string
const svg = exportToSvg(excalidrawDiagram);
console.log(svg.outerHTML);
// Export the Excalidraw diagram as PNG Blob URL
(async () => {
const blob = await exportToBlob({
...excalidrawDiagram,
mimeType: "image/png",
});
const urlCreator = window.URL || window.webkitURL;
console.log(urlCreator.createObjectURL(blob));
})();
```