Aegisub runs smoothly on Apple Silicon chips. While it may run via Rosetta 2 , newer builds like 3.4.2 are designed to build and run on modern systems more efficiently.

For developers or those wanting the most recent builds, the TypesettingTools/Aegisub repository hosts the active open-source project. Installation Steps for MacBook

Click the macOS installer link on the Aegisub website to download the disk image.

Users report stable performance on macOS Monterey , Big Sur , and Mojave . Note that some users have experienced issues on Sonoma , so ensuring you have the absolute latest 3.4.x patch is critical for compatibility. Key Features for Mac Users

Advanced tools for styling and positioning subtitles directly on the video preview.

In the window that appears, drag the Aegisub icon into your Applications folder.

Locate the file in your Downloads folder and double-click it.

To download and install Aegisub on your MacBook in 2026, you should use the official release, which was launched in January 2025. This updated version addresses many of the compatibility issues that plagued older versions on modern macOS systems. How to Download Aegisub for Mac