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Open the page, wait for it to load, then run agent-browser screenshot page.png. The filename sets the output path; without one, Agent Browser saves the screenshot in a temporary directory. Add --full when you need the whole page rather than the current viewport.
Capture a page screenshot
The basic sequence is to open a URL, wait for an appropriate page milestone, and take the screenshot:
agent-browser open https://example.com
agent-browser wait --load load
agent-browser screenshot page.pngThe quick start demonstrates waiting for load before capture. Choose a path and filename you can access from your working environment; if you omit the path, the image is saved to a temporary directory. See the Agent Browser project documentation for current command details.
Choose viewport or full-page capture
Current viewport
Run agent-browser screenshot page.png to capture the visible viewport. This is the right choice when you want the page as currently displayed rather than a tall image of all its content.
#1 Best Overall
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Entire page
Add --full to capture the full page:
agent-browser screenshot --full page.pngUse full-page mode for long articles or pages where below-the-fold content matters. Check the resulting image when the page uses content that appears only after scrolling; the command reference documents full-page capture but does not promise that every site’s scroll-triggered behavior will be activated automatically.
Set output and format
Pass a path to choose where the screenshot is written, for example artifacts/homepage.png. The project README also documents PNG or JPEG output, JPEG quality, and choosing a screenshot directory. Exact flags can change between CLI versions, so check the help output for your installed version before relying on a format-specific option.
Rank #2
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For a PDF rather than an image, use the PDF command:
agent-browser pdf output.pdfSkip unchanged repeat captures
For recurring captures, --if-changed requests conditional capture. The first capture for a scope is always reported as changed. To ignore small pixel differences, use a threshold from 0 to 1; the threshold option implies --if-changed:
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agent-browser screenshot --threshold 0.01 page.pngThe response includes change information, such as the pixel-change ratio. A threshold of 0.01 is the supplied example, not a universal tolerance: choose a value based on how much visual variation your workflow should treat as meaningful.
Scrollbars and annotations
Headless Chromium screenshots hide native scrollbars by default. The command reference documents --hide-scrollbars false at launch to retain them. The project README also documents annotation options, but annotation support is backend-dependent: it is supported on the CDP-backed Chrome/Lightpanda path. Consult the current project documentation if either behavior is important to your capture.
Rank #4
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Troubleshooting
- The screenshot is missing or not where expected: supply an explicit filename or path, then check that directory. With no path, look in the temporary directory used by the command.
- The page looks incomplete: wait for a suitable page milestone before capturing. The quick start uses
agent-browser wait --load load; pages that load important content later may require a different wait strategy supported by your installed version. - You captured only the visible portion: add
--fullfor a full-page image. - Scrollbars do not appear: headless Chromium hides native scrollbars by default; configure
--hide-scrollbars falseat launch as documented in the command reference. - A conditional capture still reports a change: the first capture for a scope is always considered changed. For later captures, try a threshold if small pixel differences should be ignored.
- An option is rejected or behaves differently: command flags and defaults are version-sensitive. Check the installed CLI’s help and current official reference rather than assuming an option from another release applies.
Or skip the browser setup
ScreenshotNeo is a website screenshot API and MCP server. One GET request captures a URL; the API supports PNG, JPEG, WebP, or PDF. Cookie banners, newsletter popups, and chat widgets are removed before capture; bot checks, blank pages, and failed loads are not billed. AI agents can use its MCP server, and 1,000 screenshots a month are free with no card; paid plans start at $5 for 3,000 shots.
For example, this cURL request captures a page as WebP (replace the URL as needed):
curl -G "https://api.screenshotneo.com/v1/shot" -d access_key=YOUR_API_KEY --data-urlencode url=https://example.com -o shot.webpSee the ScreenshotNeo API documentation for setup and options. Sign up for ScreenshotNeo to get 1,000 free screenshots a month with no card.
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- Note: The Video Converter is used with acquisition software. We recommend OBS Studio or PotPlayer for Windows, and QuickTime Player for Mac. They can be downloaded for free online. Please operate according to the steps in User Manual or contact us if you have any questions
Frequently Asked Questions
Does Agent Browser save a screenshot if I leave out the filename?
Yes. It saves the image in a temporary directory; provide a path such as page.png to choose the destination.
What does the screenshot threshold measure?
It is a 0–1 ratio used with conditional capture to ignore small pixel changes; specifying it implies --if-changed.
Quick Recap
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