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Use Cypress’s blackout option with CSS selectors to obscure private elements in a screenshot. The important limit: Cypress documents blackout for capture: 'viewport' only; it is ignored for capture: 'runner', including automatic failure screenshots in cypress run that are coerced to runner capture. See the Cypress screenshot API documentation and configuration reference for the current behavior, accessed October 3, 2026.
Hide elements in an individual Cypress screenshot
Pass blackout an array of CSS selector strings in the options object for cy.screenshot(). Set capture to 'viewport' so the documented masking behavior applies:
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cy.screenshot('account-page', {
capture: 'viewport',
blackout: ['.private-data', '[data-private="true"]'],
})Cypress blacks out matching elements in the saved image. The selectors must match the sensitive content in the page under test; examples in the API documentation include selectors such as .secret-info and [data-hide=true]. The option’s documented default is an empty array.
Set blackout defaults for screenshots
To apply selectors across screenshot calls, configure defaults in the Cypress support file. That file loads before test files are evaluated:
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Cypress.Screenshot.defaults({
capture: 'viewport',
blackout: ['[data-private="true"]'],
})Keep the selectors aligned with your application’s markup. A selector that no longer matches after a UI change will not obscure the element you intended to protect.
Know which capture modes are masked
Cypress supports three capture modes, but its blackout guarantee is not the same for each. The official documentation says matching elements are blacked out only for viewport capture and explicitly says blackout is ignored for runner capture. It does not establish a blanket masking guarantee for every mode.
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| Capture mode | What the screenshot contains | Blackout behavior |
|---|---|---|
viewport |
The application in the current browser viewport | Documented to black out elements matching blackout selectors. |
fullPage |
The application page from top to bottom | The documentation reviewed does not establish the same blackout guarantee for this mode; do not assume it is masked. |
runner |
The browser viewport, including the Cypress Command Log | Blackout is ignored. |
These descriptions and the masking limitation are from Cypress’s Screenshot API documentation and configuration reference, accessed October 3, 2026. Check the live API documentation if relying on capture-mode behavior after a Cypress release.
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Cypress documents that screenshots automatically taken after a test failure during cypress run are coerced to runner. Since blackout is ignored for runner captures, do not rely on blackout to conceal private content in these failure images.
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If those automatic images are inappropriate for a run, Cypress documents screenshotOnRunFailure: false as a way to disable them:
// cypress.config.js
const { defineConfig } = require('cypress')
module.exports = defineConfig({
screenshotOnRunFailure: false,
})Disabling failure screenshots also means losing that automatic visual artifact for the affected run. Decide whether that trade-off suits your debugging and data-handling needs.
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Understand Cypress Cloud and other captured data
Screenshot blackout is not a complete control over everything associated with a Cypress run. Cypress Cloud documents screenshot masking controls and separate controls for Command Log content and Test Replay data. Its documentation says masking affects screenshots saved locally or visible to users with access to the run. If you use Cloud, review the Cypress Cloud screenshot and video capture controls and apply the controls relevant to the data you want to protect; matching page elements with blackout alone does not establish that Command Log or Test Replay data is masked.
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Cypress saves screenshots in the configured screenshots folder; the documented default is cypress/screenshots. See the configuration reference for screenshot-folder configuration.
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Troubleshoot missing or incomplete masking
- The sensitive element is visible: Check that the selector matches the element’s current markup and that the screenshot call uses
capture: 'viewport'. - The image came from a failed test in
cypress run: Automatic failure screenshots use runner capture, where blackout is ignored. Consider disabling automatic failure screenshots withscreenshotOnRunFailure: falseif appropriate. - You used
fullPage: The documentation reviewed does not establish that blackout applies to this mode. Do not treat it as protected without confirming the behavior for your Cypress version and capture path. - The Command Log or replay contains data: Those are separate from page-element blackout; consult Cypress Cloud’s distinct controls for screenshots, Command Log content and Test Replay.
- You cannot find the saved image: Check the configured screenshots folder; the documented default is
cypress/screenshots.
Or skip the browser setup
If your goal is to capture a website outside a Cypress test, ScreenshotNeo is a website screenshot API and MCP server. A GET request returns a screenshot or PDF; for example, this cURL call saves a WebP screenshot of Stripe:
curl -G "https://api.screenshotneo.com/v1/shot" -d access_key=YOUR_API_KEY --data-urlencode url=https://stripe.com -o shot.webpSee the ScreenshotNeo API documentation for the request options. It accepts consent banners like a visitor and removes more than 60 known consent platforms, newsletter popups and chat widgets before capture; each step can be turned off. Bot checks, 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 lets AI agents use screenshot, page-info and PDF-capture tools. The free plan includes 1,000 screenshots a month with no card; paid plans start at $5 for 3,000.
Sign up for 1,000 free screenshots a month, with no card required.
Does Cypress screenshot capture compare images?
No. Cypress’s built-in screenshot command captures images but does not compare them. Cypress’s visual testing documentation describes comparison as an additional workflow or tool.
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