ViewPorter
Free Developer Tool

Pixel-Perfect BrowserResizing for Screenshots

Open a controlled popup window at exact pixel dimensions. Resize on demand, load any URL, use device presets. Take clean, precise screenshots every time.

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Exact Pixel Control

Set width and height to any value from 200–5000px. Fine-tune with arrow buttons or type exact values.

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Device Presets

One-click presets for iPhone 14, Android, Tablet, Laptop, and Full HD — no manual number entry needed.

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Aspect Ratio Lock

Lock the aspect ratio and adjust one dimension — the other updates proportionally to keep things consistent.

Configure Window

Dimensions

1440 × 900px

Device Presets

Leave blank to open an empty window. https:// is added automatically if missing.

Window Controls

Click Open Window to launch a controlled popup at your dimensions.

Active Window

Closed

No active window

Screenshot Tips

Use native screenshot

macOS: Cmd+Shift+4 then Space to capture a window. Windows: Win+Shift+S or Snipping Tool.

Hide DevTools first

Close DevTools in the popup window before capturing to get a clean viewport.

Disable scrollbars

In the popup, open DevTools → run document.documentElement.style.overflow='hidden' to hide scrollbars.

Fullpage screenshots

Use browser extensions like GoFullPage or Fireshot for full-page captures beyond the viewport.

Frequently Asked Questions

Everything you need to know about ViewPorter.