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Use JavaScript browser automation to load the real page, apply temporary CSS or change the page state, then capture the result. With Playwright, pass capture-only CSS through page.screenshot({ style }); use page JavaScript when you need to click, open, remove, or annotate something before the shot. The examples below show how to choose the capture area, control output, and make captures more repeatable.
Choose screenshot-time CSS or page JavaScript
For visual changes that should affect only the image, Playwright’s screenshot style option is usually the cleanest approach. It applies a stylesheet while the screenshot is made, rather than changing the page’s persistent state. Playwright documents that these styles can hide dynamic elements and can apply inside Shadow DOM and inner frames. Playwright screenshots documentation
await page.goto('https://example.com');
await page.screenshot({
path: 'styled.png',
fullPage: true,
style: `
.cookie-banner, .chat-widget { display: none !important; }
main { outline: 3px solid #6b5bff; }
`,
});This is runnable inside an existing Playwright script after creating a page. The selectors are examples, not selectors guaranteed to exist on a given site: inspect the page and replace them with selectors that match its markup. Use CSS for appearance-only changes such as hiding a banner, changing a background, or highlighting a region.
Use JavaScript before capture when the screenshot depends on interaction or state: opening a menu, clicking a tab, removing an element, adding an annotation, or waiting for client-side work to finish. The shot-scraper documentation demonstrates pre-capture JavaScript for setting styles, hiding elements, clicking links, and waiting for asynchronous work. shot-scraper documentation
Set up a complete Playwright JavaScript capture
Install Playwright and its Chromium browser in a Node.js project:
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npm install playwright
npx playwright install chromiumSave the following as capture.mjs and run it with node capture.mjs. It navigates to a target URL, waits for a meaningful page condition, applies screenshot-only CSS, and saves a full-page PNG. Change the URL and selectors for the site you are capturing.
import { chromium } from 'playwright';
const browser = await chromium.launch({ headless: true });
try {
const page = await browser.newPage({ viewport: { width: 1440, height: 900 } });
await page.goto('https://example.com', { waitUntil: 'domcontentloaded' });
await page.locator('main').waitFor({ state: 'visible', timeout: 15000 });
await page.screenshot({
path: 'styled.png',
fullPage: true,
type: 'png',
scale: 'css',
style: `
.cookie-banner, .chat-widget { display: none !important; }
main { outline: 3px solid #6b5bff; }
*, *::before, *::after { animation: none !important; transition: none !important; }
`,
});
} finally {
await browser.close();
}The main wait prevents the capture from proceeding before the primary content is visible, assuming the target page uses that element. Replace it with a reliable locator from the page. If the site requires client-side rendering or data loading, wait for the specific content or state the screenshot needs rather than assuming that navigation alone means it is ready.
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Change page state before the capture
For an interaction, run it after navigation and before page.screenshot(). For example, if the page has a button with an accessible name of “Menu,” open it as follows:
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await page.getByRole('button', { name: 'Menu' }).click();
await page.getByRole('navigation').waitFor({ state: 'visible' });
await page.screenshot({ path: 'menu-open.png' });Accessible locators are preferable when available because they express the user-facing control. For a one-off annotation or a known element removal, page JavaScript can alter the DOM directly, but that code depends on the target page’s structure:
await page.evaluate(() => {
const note = document.createElement('div');
note.textContent = 'Review this section';
Object.assign(note.style, {
position: 'fixed',
top: '16px',
right: '16px',
zIndex: '2147483647',
padding: '10px 14px',
background: '#fff3a6',
color: '#222',
font: '14px sans-serif',
});
document.body.append(note);
});
await page.screenshot({ path: 'annotated.png' });Keep in mind that DOM changes made through evaluate() modify the page in that browser context, while screenshot style is intended for capture-time presentation changes. Neither method changes the website for other visitors.
Choose what part of the page to capture
- Viewport: the visible browser area is the default and is useful for documenting a screen as a user sees it at a specific viewport size.
- Full page: use
fullPage: trueto capture the scrollable page in one image. Lazy-loaded content may need scrolling or explicit loading before capture if it appears only when brought into view. - One component: use a locator’s screenshot method when only a particular element is needed.
- Precise crop: use the screenshot
clipoption when a rectangle, rather than the entire viewport or a DOM element, defines the desired output.
Example of a component capture:
await page.locator('.product-card').screenshot({ path: 'product-card.png' });Replace .product-card with a selector that identifies the intended element. If several elements match, make the locator specific enough to select the right one.
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Control dimensions, format, and image size
Playwright supports PNG, JPEG, and WebP screenshots. PNG is lossless and useful when preserving sharp edges or comparing pixels. JPEG and WebP support a quality value from 0 to 100; that setting does not apply to PNG. WebP at quality 100 is lossless. A screenshot can also be returned as a buffer instead of written directly to a file. Playwright Page API
const image = await page.screenshot({
type: 'webp',
quality: 85,
fullPage: true,
scale: 'css',
});Here image is a buffer, suitable for passing to another library or writing elsewhere. Choose scale: 'css' for one output pixel per CSS pixel. scale: 'device' uses device-pixel scale and is the documented default; on high-DPI configurations it can produce larger images. Set the viewport explicitly when dimensions must be consistent across runs.
Make styled screenshots repeatable
A screenshot is only as stable as the page state and rendering environment. Wait for the content that matters, then neutralize irrelevant motion and volatility: animations, rotating promotions, clocks, personalized content, or widgets that change between visits. Capture-time CSS is useful for suppressing such elements without permanently changing the page. Where a specific element must be present, wait for that element or the state it represents rather than relying only on a fixed pause.
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A fixed delay can still help when a page has no reliable readiness signal, but it may either wait longer than needed or finish before the work is done. Prefer a condition such as a locator becoming visible or an application-specific readiness signal. For dynamic pages, consider disabling animation and transition effects in the screenshot stylesheet, as in the complete example.
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Playwright Test can create and compare screenshot baselines with toHaveScreenshot(). Playwright visual comparisons documents screenshot assertions and notes that rendering may vary with operating system, browser version, settings, hardware, power source, and headless mode. Run baseline creation and later comparisons in the same environment where possible. Investigate unexplained pixel differences before updating a baseline; a change may reflect a real layout defect, altered content, or a rendering-environment difference.
Troubleshoot common capture problems
The CSS has no visible effect
Check that the selector actually matches the page. Inspect the element in browser developer tools or query it with Playwright, for example await page.locator('.cookie-banner').count(). A count of zero means the selector does not identify an element in the current page. Also check whether the target is inside a frame or shadow root; Playwright’s screenshot styling is documented to pierce Shadow DOM and inner frames, but page-side JavaScript selectors may need to target the correct frame or shadow-aware locator.
The screenshot is blank or missing content
Navigation completion does not necessarily mean that a client-rendered application has finished loading its data. Wait for the relevant locator or application state. If an image or section appears only after scrolling, trigger the lazy-load behavior before taking a full-page screenshot. Confirm that the page did not require authentication or another interaction to expose the content.
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The capture differs from the previous run
Look first for changing page content, animation, personalization, responsive layout, or a different viewport. Then check that the browser version, host operating system, and headless mode match the baseline environment. Playwright explicitly identifies these environment factors as potential sources of rendering variation. Do not update a baseline until you know whether the difference is expected.
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The output is too large or looks soft
For large files, consider WebP or JPEG with a quality value appropriate to the image, or use CSS-pixel scale instead of device-pixel scale. For crisp pixel-sensitive comparisons, prefer PNG and keep the capture environment and scale fixed. Verify output dimensions against the viewport and whether you requested a full-page image.
Or skip the browser setup
If you want a screenshot endpoint rather than managing a browser, ScreenshotNeo takes a URL and returns an image or PDF. Its screenshot API accepts a URL in one GET request; see the ScreenshotNeo API documentation for parameters and response details.
curl -G "https://api.screenshotneo.com/v1/shot" -d access_key=YOUR_API_KEY --data-urlencode url=https://stripe.com -o shot.webpScreenshotNeo removes cookie and consent banners, newsletter popups, and chat widgets before capture; each of those steps can be turned off. Bot checks or CAPTCHAs, blank pages, timeouts, failed loads, and cache hits are not billed, and responses identify the page verdict and billing status in headers. Its MCP server provides take_screenshot, get_page_info, and capture_pdf tools for AI agents and MCP clients. The Free plan includes 1,000 screenshots per month without a card; paid plans start at $5 for 3,000 screenshots, and every feature is available on every plan. Sign up free for 1,000 screenshots a month with no card.
Which method should you use?
| Need | Use |
|---|---|
| Change appearance only for the screenshot | Playwright screenshot style |
| Click, open, remove, or annotate before capture | Page interaction or JavaScript before screenshot |
| Capture a component or crop | Locator screenshot or clip |
| Compare repeat runs | Playwright Test screenshot assertions in a consistent environment |
| Get a screenshot without browser setup | ScreenshotNeo API or MCP server |
Frequently Asked Questions
Does screenshot CSS change the live website?
No. Playwright’s screenshot style option applies styles for the capture; it does not alter the site for other visitors.
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Yes. Use a locator’s screenshot() method for an element, or the page screenshot clip option for a rectangular crop.
Why can two screenshots of the same page differ?
The page may contain changing content, and rendering can also vary with the operating system, browser version, settings, hardware, power source, or headless mode.
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