MemoryCleaner vs Wise Memory Optimizer vs Razer Cortex
All three tools can free RAM on Windows, but they are built for different people. Here is a factual comparison to help you pick — including when you should just use Task Manager.
Disclosure: this page is published by the MemoryCleaner team. We describe each tool as it ships today; check the vendors' pages for the latest details.
Quick comparison
| MemoryCleaner | Wise Memory Optimizer | Razer Cortex | |
|---|---|---|---|
| Price | Free during promotion | Free | Free (part of Razer ecosystem) |
| Ads / upsells | None | None in the core tool; Wise has other paid products | Promotes Razer products and game deals |
| Telemetry | None | Check vendor policy | Check vendor policy |
| Footprint | ~2.5 MB, portable | Small installer | Larger suite |
| Per-app view | Yes, sortable with search | Process list | Game-focused dashboard |
| Best for | Simple, no-nonsense RAM release | Free basic cleanup | Gamers boosting FPS |
Wise Memory Optimizer
A long-running free utility. It frees memory on demand or on a schedule and is a reasonable choice if you want free and simple. It is part of a larger suite of Wise utilities, so expect cross-promotion.
Razer Cortex
A game booster: it closes background processes when a game launches and shows FPS overlays. If your goal is gaming performance, it is purpose-built. If you just want to free idle memory while keeping your apps open, it is more than you need.
MemoryCleaner
Built for one job: show which apps use memory, and release the idle pages in one click without killing anything. 2.5 MB, no ads, no telemetry, free during the launch promotion. No account, no subscription.
When none of them is the answer
If memory is high with nothing open, the fix is not a cleaner — check Startup apps, run a malware scan, or reboot to clear a leak. A memory tool helps most when you keep many apps open and want to free idle pages without closing them.
Want to try the simple option first? Free forever, no account required.
Download MemoryCleanerMore: Best memory cleaners for Windows 11 (no ads) · How to free up RAM on Windows 11