CleanMachine's Memory Monitor shows live RAM usage broken down by wired, active, inactive, compressed, and free — color-coded and auto-refreshing. See which processes are eating your memory and purge inactive RAM without restarting.
macOS 13+ · Apple Silicon & Intel · Live stats, 5-second refresh
macOS actively manages memory — it doesn't keep RAM empty "just in case." The OS uses memory it doesn't immediately need to cache recently used data, so it can load it faster if you go back to it. This is why your Mac may show only 1–2 GB free even when you're not doing much: it's using the rest as cache, which is normal and healthy.
The breakdown CleanMachine shows:
The "Purge Memory" button in CleanMachine runs sudo purge — a macOS command that asks the kernel to free inactive memory. It doesn't affect wired or active memory (which can't be freed without closing apps). The result: inactive memory drops to near-zero, and free memory increases by the same amount. Apps that reload cached data may be slightly slower the first time after purging — but if you were experiencing memory pressure, the overall system will feel more responsive.
CleanMachine's CPU Monitor view (available alongside Memory) shows the top 20 processes by CPU usage. Memory-heavy processes often also appear here — Chrome, Slack, and Electron apps are notorious for both high CPU and high RAM consumption.
Live RAM breakdown: wired, active, inactive, compressed, free. Ring gauge shows used % color-coded blue/orange/red. Purge button frees inactive memory with one click.
Live process table sorted by CPU%. High-CPU badge for processes over 70% for 2+ cycles. Force Quit with confirmation. Auto-refreshes every 3 seconds.
Reducing startup apps is one of the most effective ways to reduce persistent memory usage — apps that auto-start consume RAM whether you're using them or not.
Machine AI reads your actual scan and memory stats and gives personalized advice — like which specific apps are most responsible for your memory pressure.
Download CleanMachine and open Memory Monitor — completely free. See live RAM breakdown and top processes. The full cleaning suite and Purge Memory action unlock for $19.99 once.
macOS 13+ · No subscription · 30-day money-back guarantee
Yes. Purge frees inactive memory — data the system is caching in case it needs it again. No running apps are affected, no data is lost. The only side effect is that reopening recently-used apps or files may be slightly slower right after purging, since the cache was cleared. System performance generally improves if you were under memory pressure.
Generally no. macOS manages memory automatically and will free inactive memory on its own when needed. Purging is useful when you've been doing a memory-intensive task (like video editing or running VMs) and want to immediately reclaim memory for a new task — rather than waiting for the OS to reclaim it naturally.
8 GB is Apple's baseline for most MacBook configurations. For typical web browsing, email, and document work it's usually fine. For running many browser tabs simultaneously, running VMs, video editing, or running local AI models (like Machine AI), 16 GB+ is more comfortable. CleanMachine's Memory Monitor will tell you exactly how much pressure you're under.