Mac Performance Monitor

About

Mac Performance Monitor 2.0 shows your Mac's performance live and lets you explore what happened. The Dashboard combines pressure, CPU, memory, disk, network and sensor history, with averages over the recorded range while bursts and missing readings stay visible. In Explorer, you can bring machine, process and sensor charts onto one timeline, compare up to eight running or exited processes, pin a time, and export visible data as CSV. Alerts focus on continued growth or paging strain rather than stable high usage, and each badge shows its evidence. The app also covers processes and groups, energy and sensors, network and disk activity, a Disk Map for finding large files, and GPU and hardware details. It is free and open source, requires macOS 15 or later on Apple silicon, and includes no account or license key. Performance history and alert evidence stay on your Mac, and the app does not collect app usage telemetry.