Louis AltTab Pro Portable for Mac is transferred from Windows to macOS with the advanced window switcher. Unlike macOS’s default Cmd+Tab switcher, which merely changes between apps, AltTab lets you navigate between individual windows across all spaces and desktops with live thumbnail previews.
LouisL AltTab Pro, a free and open-source application with hundreds of thousands of users, serves as the basis for this portable version. AltTab Pro adds power-user features, including app icons, window title styles, search, auto-size, and multiple shortcuts. Included are accessibility settings, app blacklisting, drag-and-drop customization, and Dark Mode.
User Interface:
The user interface of Portable attempts to enhance and update the standard macOS window-switching experience. The basic icon-based switcher is replaced by a more visual interface with live thumbnail previews of all open windows across several areas and desktops.

Louis AltTab Pro Mac’s design prioritizes speed and clarity, with recognizable program icons and unambiguous window titles to help users quickly identify tasks. With a Dark Mode appearance and multiple layout options to suit corporate procedures, the interface is also incredibly adaptable.
What’s New:
- This function lets you rapidly find any specific window by just typing its title or application name, saving you the trouble of navigating through long lists.
- Depending on how many windows are active, the window preview thumbnails are now dynamically scaled (bigger thumbnails indicate fewer windows; smaller thumbnails indicate more windows).
- Louis AltTab Pro live window thumbnails, a tidy dock-like app icon list, and a condensed text-only titles list.
- Configure up to nine different keyboard shortcuts, each with unique keys, display styles, and filtering rules (e.g., dedicated shortcuts for specific processes, programs, or displays).
Features:
- To identify the right window faster, use a fuzzy string matching method that filters windows based on the search string (no need to specify the exact search string).
- To transition between windows of the same application, press Alt + ` (Grave Accent/Backtick, the key right above the Tab on a US English keyboard layout).
- To terminate a process or all processes, either forcefully or frequently, use keyboard shortcuts.
- Louis AltTab Pro font style, background color, window transparency, width, and height could all be changed via the INI file and user interface.
- Don’t include procedures
Release Notes of Louis AltTab Pro macOS Portable:
- Louis AltTab Pro be more resilient to sleep-wake macOS bugs (closes #5723) (44d6a85)
- check for missing apps on trigger (closes #5563) (3907038)
- could block Apple Watch screen unlock (closes #5713) (3f89de0)
- Drag and drop files onto switcher tiles (closes #5603) (1f3902a)
- Focus side effect when focusing across spaces (closes #4507) (cd9d56d)
- hide android emulator empty-title windows (closes #5740) (c5eaa7a)
- improve phantom window detection (closes #5714) (4617360)
- issue when screen-recording permission was skipped (closes #5739) (0c65486), closes #5548
- menubar permission callout was not clickable (closes #5771) (9134175)
- possible launch lag when user has network drives (6fc44b0), closes /github.com/lwouis/alt-tab-macos/issues/5773#issuecomment-4730964795
How to Use?
- Any window can be the focus.
- Any window can be closed, minimized, or full-screen.
- Hide or close any program
- Change how AltTab looks (e.g., change app badges, enlarge the icon, thumbnail, title size, space numbers, etc.).
- Customized trigger shortcuts that work with almost every key
- You should ban apps that you don’t want to list or enable AltTab from Dark Mode.
- Drag and drop objects onto the window thumbnails.
- Right-to-left languages and user interface
- Voice accessibility: reduced transparency, sticky keys, etc.
System Requirements:
Operating System: macOS 10.13 (High Sierra) or later.
Processor: Native support for Intel and Apple Silicon (M-Series).
Storage: Less than 10 MB of disk space (for the app and preferences only).
Memory: Extremely low RAM usage (only what is needed to store window information and cached captures).
Required permissions (upon first launch): Full access to Accessibility and Screen Recording (to display real-time window thumbnails).
Installation and configuration
- Download the installation from fcportables.net or the official website.
- Run the installer and select installation or portable mode.
- Complete setup by following the on-screen instructions.
- It will prompt you to choose scan settings and deliver a brief cleaning lesson after installation.
- Its first-time wizard lets customers configure settings for maximum efficiency right away.
Click to download Louis AltTab Pro macOS Portable now.
Louis AltTab Pro Portable for Mac can be downloaded immediately from its homepage. Get it now!

