Window Resizer Plus

Resize browser windows to common ratios or custom sizes. Ideal for responsive testing and design previews.

Window Resizer Plus is a lightweight, free and open‑source tool to resize and position browser windows from a simple popup. It’s perfect for responsive testing, design
previews, screen recording, and demos.

- One‑click presets for common ratios (16:9, 4:3, 1:1, and more)
- Custom ratios and sizes
- Visual drag‑and‑resize preview
- Multi‑monitor and scale‑aware
- Optional “close after apply” workflow
- Built‑in Chinese/English toggle

Privacy‑friendly: no tracking, no data collection.

Keywords (optional):
window resizer, browser window size, responsive testing, aspect ratio, screen resolution, design preview, multi‑monitor