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HWall

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What HWall is

HWall is a free, read-only Linux hardware monitor and inventory application written in Rust. It offers a native GTK 4 desktop interface and a terminal interface for live temperatures, fan speeds, voltages, utilization, clocks, storage activity, network rates, and available power readings. Configurable in-memory history feeds interactive charts, with CSV or JSON Lines export. Per-sensor warning and critical alerts can use duration, hysteresis, and cooldown settings, with desktop notifications. Inventory covers processors, memory, graphics, storage, network, Bluetooth, USB, PCI, batteries, firmware, and supported security devices. HWall also produces human-readable reports, JSON exports, JSON Lines streams, and HTTP JSON snapshots through its command-line API. Optional helpers can add SMART, NVMe, sensor, Bluetooth, network, firmware, and graphics information. It reads Linux sensor interfaces without loading kernel modules or requiring administrator privileges for ordinary reads.

Who it suits

It suits Linux users who want read-only sensor monitoring, inventory, charts, alerts, exports, or an HTTP JSON API. It is also relevant to terminal users and desktop GTK users.

What it does well

  • Free Linux application
  • GTK 4 and terminal interfaces
  • Per-sensor warning and critical alerts
  • Broad hardware inventory coverage
  • CSV and JSON Lines exports

What to know first

  • Hardware support depends on kernel and drivers
  • Optional helpers are needed for some readings
  • Very short intervals can consume substantial resources
  • Accuracy and compatibility are not guaranteed

Verdict

HWall combines Linux sensor monitoring, hardware inventory, alerting, and export features in read-only interfaces. Its usefulness depends on the running kernel, installed drivers, hardware, and optional helper tools.

Facts from HWall's own pages

About the maker
The README says the maker started HWall as a personal project to bring HWiNFO64-style sensor monitoring to Linux. · github.com, 7 Oct 2026
Alert channels
desktop notifications · github.com, 24 Sept 2026
Alerts
Per-sensor warning and critical alerts support duration, hysteresis, cooldown, and desktop notifications. · github.com, 8 Oct 2026
Build requirements
Building the graphical application requires Rust 1.92 or newer, GTK 4.8 or newer development files, pkg-config, and a standard C build toolchain. · github.com, 8 Oct 2026
Exports and API
It supports human-readable reports, JSON export, JSON Lines streaming, and an HTTP JSON API serving sensor or hardware snapshots. · github.com, 7 Oct 2026
Free plan
Yes · github.com, 24 Sept 2026
Hardware inventory
Its inventory covers processors, memory, graphics, storage, network, Bluetooth, USB, PCI, batteries, firmware, and supported security devices. · github.com, 7 Oct 2026
Hardware limits
Hardware support depends on interfaces exposed by the running kernel and installed drivers, and missing optional helpers leave affected information out. · github.com, 8 Oct 2026
Hardware requirements
Available readings depend on the running kernel, installed drivers, hardware, and—in some cases—optional helper tools. · github.com, 7 Oct 2026
History and charts
It keeps configurable, bounded sensor history in memory and provides interactive charts with CSV or JSON Lines export. · github.com, 8 Oct 2026
HTTP API
The CLI can serve sensor, mixed, or hardware snapshots as JSON over HTTP at a configurable address. · github.com, 8 Oct 2026
Integrations
Optional helpers include lm-sensors, hwdata, bluetoothctl, ethtool, smartmontools, nvme-cli, nvidia-smi, and dmidecode. · github.com, 8 Oct 2026
Interfaces
It provides a native GTK 4 application and a terminal interface. · github.com, 8 Oct 2026
Inventory
Hardware inventory covers processors, memory, graphics, storage, network, Bluetooth, USB, PCI, batteries, firmware, and supported security devices. · github.com, 8 Oct 2026
License
The repository includes an MIT license. · github.com, 8 Oct 2026
License and source
The repository is public and identifies its license as MIT. · github.com, 7 Oct 2026
Limitations
The maker says HWall cannot guarantee reported-value accuracy or compatibility with every system. · github.com, 7 Oct 2026
Live monitoring
It reports temperatures, fan speeds, voltages, utilization, clocks, storage activity, network rates, and available power readings. · github.com, 7 Oct 2026
Live readings
It reports live temperatures, fan speeds, voltages, utilization, clocks, storage activity, network rates, and available power readings. · github.com, 8 Oct 2026
Optional drive health
SMART and NVMe health information is optional; detailed readings require the relevant helper tools. · github.com, 8 Oct 2026
Platform
The project describes itself as a Linux application and documents GTK and terminal builds. · github.com, 7 Oct 2026
Privileges
HWall reads sensors exposed under /sys/class/hwmon and does not load kernel modules or request administrator privileges for that access. · github.com, 7 Oct 2026
Product
HWall is a read-only Linux hardware monitor and inventory application written in Rust, with native GTK 4 and terminal interfaces. · github.com, 7 Oct 2026
Purpose
HWall is a read-only Linux hardware monitor and inventory application written in Rust. · github.com, 8 Oct 2026

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