Monitor CPU, memory, disks, processes, GPU, power and network activity on macOS and Linux. Scrub recent history, record sessions, and investigate spikes with heuristic anomaly cards. SysWatch is read-only and runs without sudo; available measurements depend on your platform and permissions.
Install
Prebuilt binaries are available for macOS and Linux (x86_64 and aarch64), with static Linux builds and an armv5te build for older NAS hardware. Build from source.
Run
1–9, 0, - and + switch tabs. V cycles views, ? shows help, q quits.
Use ← / → to scrub recent history and End to return live.
Every keybinding · Full-view demo
The tabs
| Key | Tab | Shows |
|---|---|---|
| 1 | Overview | Activity across subsystems |
| 2 | CPU | CPU usage, load and per-core activity |
| 3 | Memory | Memory use, swap and pressure |
| 4 | Disks | Disk read/write activity |
| 5 | Filesystems | Capacity, inode use and mounts |
| 6 | Procs | Processes, resource use, sorting and filtering |
| 7 | GPU | Utilisation and memory, where available |
| 8 | Power | Battery and available power measurements |
| 9 | Services | systemd or launchd services |
| 0 | Net | Network traffic |
| - | Timeline | Session events and history scrubbing |
| + | Insights | Anomalies and suggested tabs to investigate |
Views
| View | Size | For |
|---|---|---|
| Full | Tabbed | Exploring individual subsystems |
Lite (--lite) |
80×24 | SSH sessions and small terminals |
Dense (--dense) |
Designed for 130×44 | CPU, memory, network, cores, disk and processes together |
In Dense, 1–6 zoom a panel and Esc restores the grid.
View details · Lite demo
Record and report
Press R to record an interactive session or S to save a snapshot.
Live scrubbing holds 120 samples (two minutes at the default refresh rate).
Record longer sessions to disk. Headless recording rotates files and prunes old
chunks according to --keep; it runs until stopped.
Recording and report details.
Docs
| Reference | Controls, views, recording and reports |
| Platform support | Sensors, permissions, NVIDIA support and ZFS |
| Architecture | Collectors, history, rendering and refresh model |
| Security | Security policy |
Related
NetWatch covers network diagnostics; DiskWatch covers disk activity. They share the terminal layout and palette.
Thanks
Community packagers maintain the Nix and Arch packages. Repology tracks package versions. File packaging issues with the packagers and SysWatch bugs here.
License
MIT