Window Size Manager

About

Window Size Manager helps developers, designers, QA testers, and screenshot workflows resize Chrome browser windows without leaving the toolbar.

Core features:
- Resize the current Chrome window with built-in Phone, Tablet, Laptop, Desktop, and Social/Screenshot presets.
- Enter a custom width and height, then rotate the size when orientation changes.
- Save, edit, delete, and reuse custom presets locally.
- Switch between outer window sizing and visible viewport sizing.
- Read the current window frame size and viewport size from the popup.
- Restore maximized windows to normal size when applying a resize.

Privacy and storage:
- Presets and settings stay in Chrome extension storage on your device.
- Both Chrome build variants send explicit cookieless usage analytics to PostHog EU Cloud with a `build_variant` event property.
- The extension does not request host permissions and does not read page content, selected text, full URLs, cookies, website storage, form data, or browsing history.
- Analytics events do not include page content, tab titles, preset names, exact dimensions, raw error messages, cookies, or stable personal identifiers.
- Viewport mode uses a user-triggered one-shot numeric measurement of the active tab only when Chrome allows it.

Window Size Manager is built for Chrome Manifest V3 and uses a normal extension toolbar popup.