The best System Tweaker alternative to Bartender is Hidden Bar, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 10 alternatives to Bartender and four of them are System Tweakers so hopefully you can find a suitable replacement. Other interesting System Tweaker alternatives to Bartender are Ice Menu Bar, iBar-Menubar and Spaced.
When you have many items, they won't show pass the notch. As far as I know, the only application that solves this is Bartender.
It is a free alternative that does almost the same.
Ice is a powerful menu bar management tool. While its primary function is hiding and showing menu bar items, it aims to cover a wide variety of additional features to make it one of the most versatile menu bar tools available.
It works just like Bartender, but is free and open source
It is relatively cheap and the only open-source alternative I could find that still receives regular updates.
iBar-Menubar is a menu bar management tool for Mac systems, compatible with both Apple M series and Intel chips. Its main function is to manage the visibility of menu bar icons for a cleaner interface. Users can hide and display icons as needed, with the option to permanently...
The app provides menu bar separators to group menu bar items for a more streamlined appearance.
Vietnam
China
Norway
It's free and does what it should