XRG is an open source system monitor for Mac OS X. XRG allows you to monitor CPU activity, memory usage, battery status, machine temperature, network activity, disk I/O, current weather, and stock market data.




BitBar is described as 'The BitBar app lets you put the output from any script or program right in your Mac OS X menu bar. And it's completely free. An impressive number of plugins have already been contributed by a wide range of developers just like you, and this site makes it easy to find them' and is an app in the system & hardware category. There are more than 25 alternatives to BitBar for a variety of platforms, including Mac, Windows, Linux, Python and Wayland apps. The best BitBar alternative is Rainmeter, which is both free and Open Source. Other great apps like BitBar are Stats, ViBox, Conky and iStat Menus.
XRG is an open source system monitor for Mac OS X. XRG allows you to monitor CPU activity, memory usage, battery status, machine temperature, network activity, disk I/O, current weather, and stock market data.




Argos lets you write GNOME Shell extensions in a language that every Linux user is already intimately familiar with: Bash scripts. It is also 100% compatible with BitBar scripts.

perfect alternative for Gnome!
Provides practically identical functionality and experience to BitBar



Monity is an advanced system monitor that takes place in macOS Today View and oversees component statistics.




MiniUsage displays various data like CPU usage, amount of network flow, battery status and process names which uses much CPU time in a menubar. It takes little space and can display various data, so it's suitable for notebook.






SystemPal is becoming an ALL-IN-ONE app. It is the best tool to monitor your memory/CPU usage status, CPU temperature and fan speed, network speed. It also provides a tool kit including mini music player, screen shot utility, memory cleaner.



MenuBar Stats 2 has been reinvented. Completely re-written from the ground up. MenuBar Stats 2 is composed of modules (CPU, Disk, Network,...). Each module can be seen in your menu bar. Each module can be combined in 1 window, or in a separated window.



A magical creature lives in your menu bar — it might be a game character, a playful puppy, or something entirely unique. And it never stops running!




Pluto is a highly refined and customizable at-a-glance system monitor for your Mac. Keep track of what's going on behind the scenes without dropping what you're currently doing.




Beaconly is a flexible, easy to use data aggregating menu app that ties relevant information to you, beautifully one click-away in your macOs menu bar. Easily discover status of AWS, your Jira Tickets, and so much more.




AnyBar is a small indicator for your menubar that does one simple thing: it displays a colored dot. What the dot means and when to change it is up to you.

Argos is a clone of Bitbar for Linux.