HWall review

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

HWall is a free, open-source hardware monitoring and inventory application for Linux desktops and servers. Written in Rust, it offers both a GTK 4 graphical interface and an interactive terminal monitor. Its read-only approach covers live temperatures, fan speeds, voltages, utilization, clocks, storage activity, network rates, and power readings, alongside hardware information for processors, memory, graphics, storage, Bluetooth, USB, PCI, batteries, firmware, and security devices. Optional SMART and NVMe health information adds storage-specific visibility.

For monitoring depth, HWall combines current, minimum, maximum, average, and sample-count statistics with configurable in-memory history and charts. The published documentation describes a default one-minute history setting and a shared maximum of 24 hours. CSV and JSON Lines exports support further analysis, while human-readable reports, filtered sensor output, JSON export, and JSON Lines streaming provide several ways to retrieve information. Per-sensor warning and critical thresholds can trigger desktop notifications. The HTTP JSON API exposes sensor, mixed, and hardware snapshots, making the tool suitable for workflows that need structured read-only data.

HWall fits Linux-focused users who want detailed local visibility without a paid tier, including administrators and developers working with kernel, firmware, driver, and helper-tool readings. Its ecosystem connects with lm-sensors, hwdata, BlueZ, ethtool, smartmontools, nvme-cli, nvidia-smi, and dmidecode. The main trade-offs are its Linux-only scope, bounded history, desktop-notification alert channel, and lack of documented user-defined custom sensors. Choose HWall when live Linux hardware data, inventory, exports, and an API matter more than long-term retention or multi-platform coverage.

HWall pros and cons

• Where it wins
  • Broad live readings across temperature, power, storage, network, and utilization
  • Hardware inventory includes processors, memory, graphics, firmware, and devices
  • Alerts, bounded history, exports, reports, and an HTTP JSON API
• Where it doesn't
  • Linux-only support limits cross-platform monitoring
  • Sensor history is bounded to a maximum of 24 hours
  • User-defined custom sensors are not documented

HWall fact sheet, pricing and score →

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Last updated 7 Oct 2026 · How we research and update