Window Resizer

Name: Window Resizer
Author: Ananda Success

Resize the specific viewport of the window to 1:1, 16:9, and more.

As of June 2026, Window Resizer has 17 users in the Developer Tools category.

Ananda Success Developer Tools

Chrome Web Store ↗.crx

Users−5.6%

Rating0%

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— reviews

Reviews0%

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Version

1.0

Manifest V3

History

6 snapshots

Tracking since Apr 18, 2026.

View as table

Date	Users	Rating	Reviews	Version
Apr 18, 2026	18	—	—	1.0
Apr 28, 2026	21	—	—	1.0
May 8, 2026	22	—	—	1.0
May 15, 2026	23	—	—	1.0
May 24, 2026	19	—	—	1.0
Jun 3, 2026	18	—	—	1.0
Now	17	—	—	1.0

Permissions & access

Permissions: windowsactiveTabscripting
Host access: None declared

Screenshots

About

Window Resizer & Layout Tester
Optimize your responsive design workflow with precision window resizing.

Quickly test how your websites look across all screen resolutions with one click. This extension allows you to instantly resize your browser window to standard device dimensions or custom resolutions, ensuring your responsive layouts are pixel-perfect for mobile, tablet, and desktop.

Key Features:

Instant Presets: Switch between popular screen sizes for iPhone, Android, iPad, and Macbook.
Custom Dimensions: Enter specific width and height values for tailored testing.

Real-time Accuracy: Precisely resizes the viewport to simulate actual device display areas.

Design Workflow Optimization: Perfect for developers and designers to verify CSS media queries and UI responsiveness on the fly.

Stop guessing and start measuring. Ensure your web experience is consistent for every user, on every screen.

Advanced Precision Controls: Beyond Simple Resizing
What sets this extension apart is the level of control it gives you over the environment you're testing in. For professional developers, the difference of 15 pixels can break a design.

Unique Advanced Options:

Intelligent Scrollbar Control: Toggle between "With Scrollbars" and "Without Scrollbars" to see exactly how your content reflows. Test for the "layout shift" that occurs when scrollbars appear—a feature rarely found in standard resizers.
Viewport vs. Whole Window: Choose whether to resize the entire browser frame or precisely target the internal content area (the viewport). This ensures your media queries are triggering on the exact pixel values they're designed for.
Pure Viewport Extraction: Perfect for generating clean, distraction-free previews or design handoffs without the browser's UI getting in the way.
Why it’s unique: Most resizers just stretch the window. This extension understands Responsive Context. By allowing you to suppress scrollbars and isolate the viewport, you can verify your break-points with 100% technical accuracy, simulating "Zero-G" layouts or specialized app-view environments effortlessly.