How to Take a Full-Page Screenshot
Ways to capture an entire scrolling page as one image - built-in browser commands, DevTools, and multi-device capture for responsive QA.
5 min read - Updated 2026-06-15
Use this guide as a compact release reference, then validate the same breakpoints in Sizzy with synchronized devices and screenshot evidence.
The built-in options
You don't need an extension for a full-page screenshot. Chrome DevTools has 'Capture full size screenshot' in the command menu, and Firefox has a screenshot button with a full-page option in Responsive Design Mode. Both stitch the entire scrolling page into one image, including content below the fold.
Chrome: command menu > Capture full size screenshot
Firefox: screenshot tool with full-page option
Both capture the entire scroll height
No extension required for the basic case
Watch for capture gotchas
Full-page captures can break on lazy-loaded images, sticky headers that repeat, and elements with position: fixed. Scroll the page first so lazy content loads, and be aware that fixed elements may appear multiple times or only once depending on the tool. For pixel-accurate results, wait for fonts and images to settle before capturing.
Scroll first so lazy-loaded images render
Fixed/sticky elements can duplicate or misplace
Wait for fonts and images before capturing
Disable animations for a clean still
Full-page across every breakpoint
For responsive QA you often want full-page captures at several widths to review the whole layout per device. Sizzy can capture full-page screenshots across your device matrix at once, so you get the entire page on phone, tablet, and desktop in a single set - ideal for spotting overflow or spacing issues anywhere down the page.
Capture full-page at each breakpoint together
Spot overflow and spacing issues below the fold
Keep a per-release full-page baseline
Compare full-page captures for regressions
Release checklist
Lazy content is loaded before capturing.
Fixed-element duplication is accounted for.
Fonts and images settle before the capture.
Full-page captures cover every breakpoint.
Frequently asked questions
How do I take a full-page screenshot in Chrome?
Open the command menu with Cmd/Ctrl+Shift+P, type 'screenshot', and choose 'Capture full size screenshot'. Chrome stitches the entire scrolling page, including content below the fold, into a single image.
Why is my full-page screenshot missing images?
Lazy-loaded images may not have rendered when the capture ran. Scroll through the page first so all lazy content loads, and wait for fonts and images to settle before taking the screenshot.
How do I capture a full page on multiple devices?
Use a multi-device browser like Sizzy that captures full-page screenshots across your device matrix at once, producing the entire page on phone, tablet, and desktop in a single set for responsive review.
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