Screenshot Size and Viewport

Screenshot size modes

• Screen (size=screen) — captures only the visible viewport area, using the width and height you specify.
• Full page (size=full) — scrolls and stitches the entire page, including content below the fold.

Screen width and height

Define the browser window size in pixels:

{
  "url": "https://example.com",
  "screen_width": 1440,
  "screen_height": 900
}

These values control how responsive layouts render. Common breakpoints:

• Desktop: 1440 × 900 or 1920 × 1080
• Laptop: 1280 × 800
• Tablet: 768 × 1024
• Mobile: 375 × 812 (or use Device Emulation)

Max height

Set max_height to limit full-page capture to a maximum number of pixels, avoiding extremely long renders.

Tips

• When a device name is selected, screen dimensions are locked to the device's specs.
• For mobile testing, prefer the Device Emulation section over manual width/height.