Introduction
> Published on Wed, Feb 4, 2026> Updated on Sat, Feb 14, 2026
a-bar is a native macOS menu bar replacement inspired by simple-bar. It is built with Swift and SwiftUI and runs as a standalone app (no Übersicht required).
It focuses on performance, stability, and extensibility, while keeping the workflow-oriented experience of a customizable bar that surfaces your spaces, windows, and system status.
a-bar supports both yabai and AeroSpace as window managers. You can switch between them in the General settings.
This documentation walks you through installation, configuration, layout building, widgets, and settings so you can tailor a-bar to your workflow.
Note of caution: Even in v1.x.x, a-bar stays in early development. Expect bugs and missing features. Feedback and contributions are welcome!
About signing and notarization: a-bar is currently not signed or notarized. This means that you will need to bypass macOS security to run it, and you may see warnings about the app being from an unidentified developer. I'm not planning to notarize the app as it would cost around $100/year.