Freedom251 › Cloud, Backup & PC
Free and open first
Best System Information Software in 2026
When you need a clearer picture of a computer, system information software can surface details about its hardware, firmware, operating system, and installed software. Compare the listed operating systems and check whether firmware or installed-software details are available for the systems you need to inspect. A command-line interface and portable version may suit different ways of working, while report export can help when you want to share findings. Fastfetch, ASTRA32, and EtreCheckPro are among the named options to consider. The free-plan and paid-from fields provide cost context, so weigh them alongside the information each tool covers and how you want to collect or present it.
- 34 apps
- Research read 23 Sept 2026
- How the order is worked out
- 1
Facter
Free plan Open source APILinuxMac+2Facter gathers system information and makes it available to Puppet workflows, with support for built-in, custom, and external facts.
- 2
Fastfetch
Free plan Open source AndroidLinuxMac+2Fastfetch offers customizable terminal displays of system information across several operating systems. Configure shell startup carefully to avoid disrupting non-interactive operations.
- 3
Btrfsmaintenance
Free plan Open source LinuxSelf-hostedBtrfsmaintenance provides configurable scripts for several common Btrfs maintenance tasks.
- 4
AppControl
Free plan WindowsAppControl provides historical activity records, alerts, and controls for Windows app behavior. It requires administrator privileges, and its maker says it does not replace dedicated security tools.
- 5
Argus Monitor
by Argus MonitorFree plan WindowsArgus Monitor combines detailed fan controls with hardware and storage monitoring for Windows. A 30-day evaluation is listed, followed by licenses from $16.45 a year.
- 6
ASTRA32
Free plan WindowsASTRA32 combines hardware identification, driver troubleshooting, and report generation, including batch operation and portable use.
- 7
Autoruns
Free plan WindowsChoose Autoruns if you need a free Windows tool to inspect startup items across many system locations and manage their configurations.
- 8
CPU-X
Free plan LinuxSelf-hostedChoose CPU-X if you need a free, open source system information tool for GNU/Linux or FreeBSD and value its multiple interfaces.
- 9
Conky
Free plan LinuxMacSelf-hostedConky offers a configurable way to keep system information visible, with multiple display formats and script support.
- 10
EtreCheckPro
Free plan MacEtreCheckPro offers basic diagnostics for free, with a one-time upgrade for detailed displays and generated solutions.
- 11
htop
Free plan LinuxMachtop provides a terminal-based way to view processes, with controls for I/O priority and CPU affinity. Keep in mind that it does not report SWAP use per process.
- 12
hw-probe
Free plan LinuxSelf-hostedhw-probe combines hardware inventory, driver guidance, optional tests, and scheduled monitoring for Linux and BSD environments.
- 13
- 14
hwinfo
Free plan LinuxChoose hwinfo if you need Linux hardware probing through a command-line tool or the libhd library, with detailed device output and support logs.
- 15
inxi
Free plan Linuxinxi provides broad system reporting for GNU/Linux, with command-line and IRC use. Its reporting depth depends partly on installed programs and permissions.
- 16
lshw
Free plan LinuxChoose lshw if you need a free Linux hardware inventory tool with detailed system information and multiple report formats.
- 17
HardInfo2
Free plan LinuxHardInfo2 combines Linux system information with benchmark and report tools, including CLI support for multiple machines.
- 18
Navrátil Software System Information
Free plan WindowsNSSI offers a broad hardware inventory and diagnostic features in a free, portable utility. Some memory details depend on the computer’s chipset.
- 19
Network Activity Indicator
Free plan WindowsNetwork Activity Indicator provides a simple tray display for network packet activity on Windows.
- 20
SIW
Free plan WindowsSIW combines detailed system inventory with flexible report formats and command-line options.
- 21
AIDA64
Free trial AndroidiPhoneWindowsAIDA64 offers separate editions for personal diagnostics and network inventory or administration.
- 22
Speccy
Free plan WindowsSpeccy combines hardware summaries, temperature readings, and exportable system details in a Windows tool.
- 23
System Information Viewer
Free plan WindowsChoose SIV for a free home-use Windows utility with broad hardware and firmware reporting, portable availability, and a command-line interface.
- 24
WinAudit
Free plan WindowsWinAudit provides a free way to inventory Windows computers, with several report formats and command-line support.
- 25
KInfoCenter
Free plan LinuxKInfoCenter provides system and hardware information through KDE-integrated views and individual modules.
#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price
More in Cloud, Backup & PC
- Tab Management Software27
- Task Automation Software35
- Taskbar Customization Software34
- Virtual Camera Software34
- Virtual Desktop Infrastructure Software25
- Virtual Drive Software24
- Virtual Machine Backup Software26
- Web browsers154
- WebDAV Client Software26
- Wi-Fi Analyzer Software29
- Window Management Software65
- Windows Compatibility Layers26