iStat Menus is described as 'System monitor for Mac tracking CPU, GPU, network, sensors, disks, memory, and weather with menubar stats, notifications, privacy options, and custom views' and is a very popular system information utility in the system & hardware category. There are more than 50 alternatives to iStat Menus for a variety of platforms, including Mac, Windows, Linux, iPhone and iPad apps. The best iStat Menus alternative is HWiNFO (32/64). It's not free, so if you're looking for a free alternative, you could try HWiNFO (32/64) or Stats. Other great apps like iStat Menus are Open Hardware Monitor, SpeedFan, Sidebar Diagnostics and MacThrottle.
Designed for Windows, this tool provides real-time temperature monitoring and extensive hardware diagnostics. Suitable for technical experts, manufacturers, and system integrators with report export capabilities.
Menu bar tool for macOS shows real-time CPU, GPU, memory, disk, network, battery status, sensor data, fan speed, Bluetooth device info, multi-time zone clocks, customizable widgets, and historical graphs while ensuring privacy.
Stats is open source, also sensors work without problem (iStats Menus (alternative paid app) separate sensors module sometimes create problems), no separate add-on required. Very nice app here, play with it a little, get same or better results on MacOS.
Love it, no need for iStats Menu anymore
Comprehensive tool offering GPU overclocking, video and screen capture, and overlays, with support for Nvidia and ATI cards. Features Kombustor stress test, portable use, ad-free experience, manual exclusion of false positives in displays, and multiple video compression options.
The Open Hardware Monitor is a free open source software that monitors temperature sensors, fan speeds, voltages, load and clock speeds of a computer.
There has not been any code change since December 2020, also the community now wonders if it is abandoned: https://github.com/openhardwaremonitor/openhardwaremonitor/issues/1471 There also seems to be a fork called LibreHardwareMonitor (which is already listed as an alternative) and appears to be the most active fork right now.
Doesn't display info on task bar or system tray like iStat Menus would.
SpeedFan is a program that monitors voltages, fan speeds and temperatures in computers and controls the fans if possible.
Offers at-a-glance hardware monitoring for CPU, RAM, GPU, network, and drives through a customizable sidebar with alerts, hotkey support, multi-DPI compatibility, an integrated clock, themes, and clear graphical statistics on the Windows desktop.
The project seems no longer developed. Last version, 3.6.3, released in January 2023, can be still downloaded from Github.
It is overly complicated and displays too much info that cannot be customised. Info also as text % and not as graphic elements like iStat. Makes it hard to use at a glance.
Lightweight macOS tool that tracks thermal pressure and throttling, shows real time CPU temperature and fan speed, provides 10-minute history graphs, statistics for thermal states, and customizable notifications, all without requiring administrator privileges.
Core Temp is a compact, no fuss, small footprint, yet powerful program to monitor processor temperature and other vital information.
Provides real-time statistics for CPU, memory, disk, and network usage on macOS, allows users to view, organize, and terminate processes, analyze system resource consumption, view data in graphs and tables, check current transfers, and monitor system health.
Native macOS app displays live CPU, GPU, memory, and network usage with history, manages and reclaims ports, tracks AI coding agent sessions in detail, enables local and remote monitoring, provides comprehensive notifications, and secures scanned data.
Visualizes CPU, RAM, disk, and network statistics in the Windows taskbar with a lightweight, battery-friendly design. Offers customizable appearance, quick refresh rates, and continuous monitoring for always-visible resource usage insights on desktop or laptop devices.
Xmeters give very good info on the most important system stats. I like it a lot!
hwinfo/libhd are used to probe for the hardware present in the system. It can be used to generate a system overview log which can be later used for support.
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It provides many of the same features and is open source