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Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minuteTo render one element with dom-to-image, first select its DOM node, then pass that node—not a selector string—to domtoimage.toPng(node). The call returns a promise that resolves to a PNG data URL. You can display it, download it, or pass it to other browser code.
Capture a single element as a PNG
Install and load dom-to-image in your browser application using the package setup appropriate to your project. Then select the element and call toPng. This example uses an ES module import and appends the result as an image:
import domtoimage from 'dom-to-image';
const node = document.getElementById('my-element');
if (!node) {
throw new Error('Element not found');
}
domtoimage.toPng(node)
.then((dataUrl) => {
const image = new Image();
image.src = dataUrl;
document.body.appendChild(image);
})
.catch((error) => {
console.error('Could not render element', error);
});Replace my-element with the target element’s actual ID. The null check is ordinary defensive DOM code, not a library requirement: it prevents a missing element from being passed into the renderer. The promise is asynchronous, so use the result inside .then() or with await.
Use a selector when the element has no ID
Resolve a CSS selector to a DOM node before calling the library. For example:
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const node = document.querySelector('.invoice-card');
if (!node) {
throw new Error('No element matched .invoice-card');
}
const dataUrl = await domtoimage.toPng(node);querySelector returns the first matching node or null. The capture API takes the node itself; passing '.invoice-card' as a string is not the documented node-to-image pattern.
Display, download, or pass along the result
toPng resolves to a data URL, which can be assigned to an image source or used as a download link. To prompt a browser download, create a temporary anchor:
const node = document.querySelector('.invoice-card');
if (!node) throw new Error('Element not found');
try {
const dataUrl = await domtoimage.toPng(node);
const link = document.createElement('a');
link.download = 'invoice-card.png';
link.href = dataUrl;
link.click();
} catch (error) {
console.error('Could not render element', error);
}For larger downstream workflows, choose an output suited to the next step rather than converting formats unnecessarily. The original project documents these output methods:
| Method | Result | Useful when |
|---|---|---|
toPng(node) |
PNG data URL | You need a lossless raster image or an image source. |
toJpeg(node, options) |
JPEG data URL | You want a compressed raster image and can choose a quality value. |
toSvg(node) |
SVG data URL | You want the serialized SVG representation rather than a raster result. |
toBlob(node) |
Blob | Browser code downstream expects a Blob. |
toCanvas(node) |
Canvas | You need to continue drawing or processing in canvas code. |
toPixelData(node) |
Pixel data | You need raw pixel values for image processing. |
These functions accept a DOM node and rendering options and return promises. The documentation does not establish a current quality or speed ranking among these formats; select by the format your application needs.
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Configure what appears in the image
The documented rendering options let you control the captured subtree’s appearance and resource handling. Options are passed as the second argument:
const dataUrl = await domtoimage.toPng(node, {
bgcolor: '#ffffff',
width: 800,
height: 600,
style: {
transform: 'scale(1)',
},
filter: (child) => child.tagName !== 'BUTTON',
});Exclude descendants with filter
filter(node) should return true to retain a descendant and false to exclude it. Excluding a node also excludes its descendants. The filter is not called for the root element passed to the capture method, so it cannot remove that root; select a different root if you need to omit it. For example, the filter above removes button descendants from the captured card.
Set background, dimensions, and style
bgcolorsets the background color for the rendered output.widthandheightset the rendered node dimensions.styleapplies style overrides to the node during rendering.
Use these when the default rendered dimensions or appearance do not match the output you need. Treat dimension changes as rendering settings; they do not change the fact that the input is a DOM node.
Choose JPEG quality and control resource fallbacks
qualitysets JPEG quality from0to1; it is relevant totoJpeg.cacheBustappends the current time to resource URLs.imagePlaceholdersupplies a data URL to use when an image fetch fails. Without a placeholder, an image failure throws.
A placeholder can help an application deliberately tolerate unavailable images, but it also means the output may contain the fallback instead of the intended asset. If the image is important, fix its loading or access problem rather than masking it.
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What dom-to-image actually captures
This is not an operating-system screenshot or a browser-native screenshot of the visible viewport. The original project describes a rendering process that recursively clones the selected node, copies computed styles, recreates pseudo-elements, embeds web fonts and images, serializes the clone to XML, and wraps it in SVG foreignObject. For PNG and pixel output, that SVG is loaded as an image and rendered through an off-screen canvas.
That implementation explains both the appeal and the constraints: it can render a chosen DOM subtree, but success and fidelity depend on resource fetching, SVG foreignObject behavior, canvas security, and browser behavior. Content that is visible in the page is not automatically guaranteed to be available to the renderer.
Prepare the page and handle common failures
Capture after the target has its final layout and the resources it needs have loaded. This is practical guidance for a workflow that clones DOM and fetches styles, images, and fonts; it is not a promise of pixel-identical output in every browser or page.
Element not found
If selection returns null, the selector does not match at capture time. Check the ID or selector spelling, ensure the target has been inserted into the DOM, and run the capture after the relevant rendering step. Keep the null check so this failure is reported before the library call.
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Remote images, backgrounds, or fonts are missing
External resource access can affect completeness. Verify that the browser can fetch the image, background image, or font in the page context and that the resource is ready before capture. If an image fetch fails, imagePlaceholder can provide a fallback data URL; otherwise the documented behavior is for the image failure to throw.
Canvas is tainted or output fails around cross-origin content
The original README warns that a captured canvas can fail when tainted by cross-origin content. Remote images and other assets are therefore not merely a loading concern: browser security can prevent their pixels from being used in canvas output. Check the relevant resource access permissions and test the exact asset and browser combination you intend to support.
Styles differ from the page
The renderer copies computed styles into a clone and recreates pseudo-elements, but a clone-and-serialize path is not equivalent to capturing the browser’s final screen. Confirm that relevant stylesheets and fonts have loaded before invoking the method. The original README also notes a Firefox issue involving some external stylesheets, so investigate stylesheet loading when output differs in that browser.
Browser compatibility is uncertain
The original README’s support notes are historical: it reports tests with Chrome 49 and Firefox 45 at the time, and says Internet Explorer was unsupported because it lacked SVG foreignObject; Safari was marked unsupported because of stricter security around foreignObject. Those old test-version statements are not current compatibility verification. Test the browsers and content your own application supports rather than treating those version numbers as a modern support matrix.
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Server-side rendering, iframes, video, and size limits
The separate dom-to-image-more fork documents additional caveats: it requires a browser DOM rather than server-only rendering, browsers impose canvas dimension limits, cross-origin iframe content cannot be accessed, and video needs a poster or a caller-created image/canvas representation. These are fork-specific documented caveats; do not assume they are a complete or guaranteed statement of the original package’s behavior. In either case, DOM rendering belongs in a browser context with access to the content to be rendered.
Or skip the browser setup
If your goal is to capture a page or a CSS-selected element from a URL without wiring a DOM-rendering library into the page, ScreenshotNeo offers a screenshot API. Its element-capture option targets a CSS selector. A single request can return an image or PDF; see the ScreenshotNeo API documentation for request options.
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When this approach is the right fit
Use dom-to-image when the target is already a DOM element in your browser application and you want to create an image representation there. It is especially useful when the application needs a DOM subtree rendered to a data URL, Blob, canvas, SVG, or pixel data. If instead you need a screenshot of a URL without running capture code within that page, use a browser-level or hosted capture workflow; the approaches solve different problems.
Frequently Asked Questions
Does dom-to-image capture the whole browser window?
No. It renders the DOM node you pass to it and its included descendants; it is not an operating-system or viewport screenshot.
Can I use a CSS selector directly in toPng()?
No. Resolve the selector first with a DOM method such as document.querySelector, then pass the resulting node.
Does the filter option remove the root element?
No. The filter is not called on the root capture node. It filters descendants, and excluding a descendant also excludes its subtree.
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