jsCPUMonitor is a lightweight, native Windows desktop utility that provides real-time CPU monitoring with individual 60-second history charts for every core. It automatically detects hybrid processors (performance and efficiency cores), displays current clock speeds, load percentages, total system load, core/thread counts, and memory usage. The narrow vertical window is designed to sit unobtrusively at the edge of the screen for continuous monitoring.
jsCPUMonitor is a Debugging & profiling product. It focuses on needing constant, detailed, at-a-glance visibility into per-core CPU load, frequency, and system resources without cluttering the desktop. jsCPUMonitor is a consumer product aimed at developers and power users. It runs on Windows.
Josef Sejrek builds and maintains jsCPUMonitor, and the product first shipped in 2026. Among its 6 catalogued features are Per-core Monitoring, Live History Charts, and Hybrid Processor Detection.
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