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Use a real browser through Playwright and set fullPage: true. In Nuxt, the most maintainable approach is a Playwright test or CI job that waits for hydration and an application-specific ready signal before saving the image. Puppeteer provides the same full-page capability, while html2canvas is a client-side fallback with important fidelity and cross-origin limits.
Use Playwright for a reliable Nuxt full-page capture
Playwright renders the route in Chromium (or another supported browser), so the result includes content below the viewport, CSS layout, web fonts and JavaScript-rendered components. The essential option is fullPage: true. Nuxt’s official test utilities expose Playwright helpers, including createPage.
Prerequisites
- A Nuxt application that can be started locally or in CI.
- Playwright and the Nuxt test utilities installed in the project.
- A route that is reachable from the test process, such as
/docs. - A stable way to know that application data and lazy content are ready.
Nuxt 3 documentation records Nuxt 3 end of life on 31 July 2026 and recommends Nuxt 4 or extended support. For a new implementation after that date, target Nuxt 4 unless your project has an extended-support arrangement.
Nuxt test-utils with createPage
Put this in an end-to-end test file. The example waits for network idle as a baseline, then writes a full-page WebP-compatible PNG artifact.
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import { createPage } from '@nuxt/test-utils/e2e'
describe('visual capture', async () => {
const page = await createPage('/docs')
await page.waitForLoadState('networkidle')
await page.screenshot({
path: 'artifacts/docs-full-page.png',
fullPage: true,
})
})networkidle is not a universal definition of readiness. Analytics, polling, advertisements, delayed images or client-side data can continue changing a page after the initial network quiet period. Add a marker that your application sets only after the required content is rendered, and wait for it before taking the screenshot.
await page.waitForLoadState('networkidle')
await page.getByTestId('page-ready').waitFor({ state: 'visible' })
await page.screenshot({
path: 'artifacts/docs-full-page.png',
fullPage: true,
})For a marker you control, render an element such as <div data-testid="page-ready" /> only after the page’s API responses, fonts and required components have settled. This prevents a successful screenshot command from producing an incomplete artifact.
Nuxt 4 Playwright test-runner pattern
Nuxt’s Playwright integration supplies a goto fixture with a hydration-aware wait. Combine that with a meaningful assertion so the capture fails when the expected page is not actually ready.
import { test, expect } from '@nuxt/test-utils/playwright'
test('full page screenshot', async ({ page, goto }) => {
await goto('/docs', { waitUntil: 'hydration' })
await expect(
page.getByRole('heading', { name: 'Documentation' })
).toBeVisible()
await page.screenshot({
path: 'artifacts/docs-full-page.png',
fullPage: true,
})
})Hydration confirms that Nuxt has attached its client behavior; it does not prove that every asynchronous request or lazy section has finished. Keep the assertion or add your application-specific ready marker for data-heavy routes.
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A full-page screenshot is the complete scrollable document, including content below the current viewport, as if the page fit on a very tall screen. It is different from a viewport screenshot, which captures only the visible area at the time of the call.
Image formats and resolution
Playwright can write PNG, JPEG and WebP images. PNG is a good default for visual regression because it is lossless; JPEG is smaller for photographic pages but introduces compression; WebP can reduce storage while retaining good quality. Playwright also offers CSS-pixel and device-pixel scale choices, so choose the scale deliberately when comparing images across machines.
Rank #2
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- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
Command-line capture
If you already use the Playwright CLI, the equivalent command is:
playwright-cli screenshot --full-page --filename=full-page.pngAdd --hires when you need device-pixel output rather than the standard CSS-pixel rendering:
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playwright-cli screenshot --full-page --hires --filename=full-page.pngFor repeatable visual tests, fix the viewport, locale, color scheme, fonts and test data. Disable transitions or wait until animations finish. Freeze time-dependent content where practical, and make sure lazy-loaded sections are triggered before capture; otherwise two runs can differ even when the code has not changed.
Puppeteer alternative
Puppeteer is appropriate when the project already depends on it or your automation is built around its API. It also renders a real browser page and defines fullPage as the full document capture.
import puppeteer from 'puppeteer'
const browser = await puppeteer.launch()
const page = await browser.newPage()
await page.setViewport({ width: 1440, height: 900, deviceScaleFactor: 1 })
await page.goto('http://localhost:3000/docs', {
waitUntil: 'networkidle0',
})
await page.waitForSelector('[data-testid="page-ready"]')
await page.screenshot({
path: 'artifacts/docs-full-page.png',
fullPage: true,
})
await browser.close()PNG is Puppeteer’s default image type. Its screenshot method can return image bytes, or a base64 string when requested through the encoding option, which is useful when your pipeline uploads artifacts instead of writing files.
Client-side option: html2canvas
When the user must initiate a capture in their own browser, a Nuxt client component can call html2canvas after mounting:
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<script setup lang="ts">
import html2canvas from 'html2canvas'
onMounted(async () => {
const canvas = await html2canvas(document.documentElement)
const dataUrl = canvas.toDataURL('image/png')
// Use dataUrl in an img element or upload it to your service.
})
</script>This is a DOM reconstruction, not a pixel-level browser screenshot. Unsupported CSS, cross-origin images, tainted canvases and cross-origin iframes can yield incomplete or inaccurate output. Serve assets from the same origin or configure an appropriate proxy where possible; browser security restrictions still limit cross-origin iframes. Prefer Playwright or Puppeteer when fidelity and repeatability matter.
Make dynamic Nuxt pages complete before capture
Lazy-loaded content
Full-page mode does not guarantee that every lazy component has fetched its data. Scroll through the page, trigger the component’s loading condition, or expose a test-only command that requests all sections. Then wait for the resulting DOM change or network request before taking the image.
Fonts and images
Wait for the page’s required font and image work to complete. A heading can have the correct text while still shifting when its web font arrives. Likewise, an image element can exist before its final dimensions and pixels are available.
Animations and transient UI
Disable CSS transitions and animation in a visual-test stylesheet, or wait for the animation to finish. Hide rotating carousels, timestamps and other intentionally changing elements when the goal is regression comparison.
Authentication and test data
Use a dedicated test account or deterministic fixtures. Keep locale, timezone, color scheme, viewport and device scale fixed so differences represent application changes rather than the environment.
Which approach should you choose?
| Rank | Approach | Capture fidelity | Execution location | Cross-origin behavior | Automation and CI | Complexity |
|---|---|---|---|---|---|---|
| 1 | ScreenshotNeo — clean shots, only clean shots billed, and a $5 paid entry plan | Real browser capture with full-page and rendering controls | Hosted API or MCP server | Handles public URLs without client-side canvas restrictions | HTTP, asynchronous jobs, webhooks and bulk capture | Low after API-key setup |
| 2 | Playwright | Real browser; PNG, JPEG and WebP; CSS- or device-pixel scale | Your test, CI worker or screenshot service | Browser security and page permissions apply | Excellent; Nuxt test utilities and fixtures are available | Moderate |
| 3 | Puppeteer | Real browser; full-page capture and PNG default | Your Node process or CI worker | Browser security and page permissions apply | Excellent when already used by the project | Moderate |
| 4 | html2canvas | DOM reconstruction; may diverge from the rendered page | The visitor’s browser | Cross-origin images and iframes can be blocked or taint the canvas | Limited for repeatable server-side jobs | Low for simple, same-origin pages |
Or skip the browser setup
ScreenshotNeo provides a website screenshot API and MCP server for developers. One GET request returns a PNG, JPEG, WebP or PDF. It accepts cookie and consent banners like a visitor, then removes more than 60 known consent platforms, newsletter popups and chat widgets before capture; each cleanup step can be disabled. Bot checks and CAPTCHAs, blank pages, timeouts, failed loads and cache hits are not billed, and response headers identify the page verdict and whether the request was billed.
Use the API base endpoint with the documented parameters (the ScreenshotNeo API documentation covers the complete option set):
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curl -G "https://api.screenshotneo.com/v1/shot" -d access_key=YOUR_API_KEY --data-urlencode url=https://example.com/docs -o shot.webpPython:
import requests
r = requests.get(
"https://api.screenshotneo.com/v1/shot",
params={"access_key": "YOUR_API_KEY", "url": "https://example.com/docs"},
timeout=90,
)
r.raise_for_status()
open("shot.webp", "wb").write(r.content)Node.js:
const q = new URLSearchParams({
access_key: 'YOUR_API_KEY',
url: 'https://example.com/docs',
})
const res = await fetch(`https://api.screenshotneo.com/v1/shot?${q}`)
if (!res.ok) throw new Error(`Screenshot failed: ${res.status}`)
await Bun.write('shot.webp', res)
ScreenshotNeo has 63 options, including full-page capture with lazy images loaded, CSS-selector element capture, dark mode, 12 device presets plus custom viewports, retina scale, PDF paper sizes and page ranges, HTML/CSS-to-image rendering, custom CSS and JavaScript, pre-capture clicks, hidden selectors, waits for selectors, delays or network idle, ad/tracker/request/resource blocking, headers, cookies, user agents and Authorization, timezone and geolocation, transparent backgrounds, resizing, selectable-TTL caching, signed links for public <img> tags, asynchronous jobs with signed webhooks, bulk capture of up to 100 URLs per call, a usage API and an OpenAPI specification. Parameter names used by other screenshot APIs also work to ease migration.
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Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Troubleshooting full-page captures
The image is blank or only partly rendered
Cause: the capture ran before hydration, data requests or fonts completed. Fix: wait for the hydration-aware navigation, assert a visible page heading, then wait for your application’s ready marker. Check the browser console and failed requests if the marker never appears.
Sections below the fold are missing
Cause: lazy loading is tied to scrolling or an intersection observer. Fix: scroll or invoke the component’s load condition, wait for the new DOM or network result, and only then call screenshot({ fullPage: true }).
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Cause: animations, rotating content, timestamps, random data, fonts or environment settings. Fix: freeze test data and time where practical, disable transitions, use fixed viewport and locale settings, and wait for fonts and images.
html2canvas omits an image or iframe
Cause: cross-origin security or unsupported CSS. Fix: serve the asset from the same origin or use a suitable proxy for images; cross-origin iframes remain restricted. Switch to Playwright or Puppeteer for a real browser capture.
Best Value
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The page is extremely tall
Cause: the resulting bitmap can exceed downstream image or storage limits even though the browser can render it. Fix: capture with Playwright or Puppeteer, check the final pixel dimensions, choose an appropriate scale and format, and split the workflow into sections or PDF pages when your consumer cannot handle one very large image.
Navigation never reaches network idle
Cause: polling, analytics or an open connection keeps network activity alive. Fix: use hydration or a normal navigation wait, then rely on a specific ready marker instead of waiting forever for global network idle.
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For local or CI captures, browser startup is the main setup and runtime cost. Reuse a browser process for a batch of routes, keep viewport and scale explicit, and retain screenshots as build artifacts only when they are needed for review. A deterministic route and readiness marker reduce flaky retries more effectively than simply increasing timeouts.
A hosted API is useful when you do not want browsers, fonts and sandbox permissions in your deployment. ScreenshotNeo’s cache can use a TTL you choose, and its asynchronous jobs, signed webhooks and bulk requests help when many URLs must be captured. Its response headers let a pipeline distinguish a clean, billable capture from a bot check, blank page, timeout, failed load or cache hit.
Frequently Asked Questions
Does a full-page screenshot include the browser’s address bar or tabs?
No. Playwright and Puppeteer capture the web document rendered in the page, not browser chrome outside the page.
Can I use the same Nuxt route for visual tests and production screenshots?
Yes, but keep the readiness marker and test data controls available in a safe, deterministic form; production-only personalization should not be allowed to make regression artifacts unpredictable.
When should I save a screenshot as an artifact instead of comparing it immediately?
Save it when a human review, audit trail or later comparison is required. For a pass/fail visual test, compare against a controlled baseline and retain the new image only when your CI policy needs it.
Quick Recap
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