siomon is a free Linux utility for hardware information and real-time sensor monitoring. Its interactive terminal dashboard reads kernel-exported sensors and tracks minimum, maximum, and average values during a monitoring session. Configurable threshold alerts and CSV logging are available. One-shot commands report CPUs, memory, motherboards, GPUs, storage, network adapters, audio, USB, batteries, PCI, and PCIe hardware. GPU reporting supports NVIDIA through NVML, AMD through amdgpu sysfs, and Intel through i915 or xe sysfs. Reports can be generated as text, JSON, XML, or self-contained HTML. The program has zero mandatory runtime dependencies and reads kernel interfaces. Root access enables additional DMI fields, SMART and NVMe health data, MSR access, RAPL power readings, and SPD timings. NVIDIA details require the NVIDIA driver, while some extra readings use optional kernel modules or dmidecode. Installation is documented through an Ubuntu PPA, the Arch User Repository, and Nix. The repository identifies siomon as MIT licensed.
Who it is for
It suits Linux users who need terminal-based hardware inspection, sensor tracking, alerts, logs, or report exports. Administrators seeking deeper readings can use root access and install the relevant optional components.
What is good
- Tracks minimum, maximum, and average readings
- Configurable alerts and CSV logging
- Reports export to four formats
- Broad CPU and hardware coverage
- No mandatory runtime dependencies
What to know first
- Linux only
- NVIDIA details require the NVIDIA driver
- Some readings need optional components
- Extra data requires root access
Verdict
siomon combines live sensor monitoring with broad one-shot hardware reporting and multiple export formats. Its dependency-free core is straightforward, while deeper hardware data depends on root access, drivers, or optional modules.
Compared on hardware monitoring software
- Supported platforms
- Linux
