Wise Memory Optimizer is a free RAM management utility for Windows from WiseCleaner. It reclaims memory that applications keep holding after they no longer need it. It also clears the cache Windows keeps of recently used pages and can perform these tasks on its own in the background. It runs on 32-bit and 64-bit editions of Windows. A portable build also runs from a folder or USB drive without installation.
Reading the memory display
The main window divides RAM into memory in use and memory available. A pie chart shows these categories, with the total installed amount alongside. Both figures appear as raw values and as percentages. In Wise Memory Optimizer, “available” means free memory plus cached memory, the same way Windows counts it. An Advanced view breaks memory usage down in more detail for anyone who wants more than the two headline numbers.
Three ways to reclaim RAM
The green action button has two halves. A drop-down on the right picks what the button does, and the left half runs that action straight away. The choices are:
- Free up RAM releases memory that running and recently closed programs still hold.
- Empty Standby RAM clears the standby list. Windows keeps pages from processes that have stopped using them in this list so it can reload them quickly. Windows normally reclaims these pages itself when free memory gets low, and it has no built-in command to clear them by hand.
- Defrag RAM reorganizes memory and takes longer than the other two. While it runs, the in-use (compressed) figure climbs until no free memory is left, then falls back to its normal level.
An optimization pass can also empty the Windows clipboard. To keep copied text or images, turn off “Clean clipboard while optimizing” in Settings.
Automatic optimization rules
The Auto optimization page in Settings lets the program act without being opened. You set a threshold for available memory and choose how much memory to release when it is crossed. With “Run when CPU is idle” enabled, Wise Memory Optimizer acts only when both conditions hold. Available memory must have dropped below your threshold, and CPU usage must have stayed under 5% for five minutes. That means a busy session with heavy processor load will not trigger a pass, even when memory is tight. Optimization can also be scheduled for set times.
Working from the tray and hotkeys
When “Minimize to system tray when closed” is checked, closing the window leaves the optimizer running in the notification area. The tray icon can show current memory usage, so you can watch RAM without opening the window. Right-clicking the icon gives an Optimize command and an Auto Optimize toggle. Optimize runs in the background and then reports how much memory it freed. Auto Optimize switches the automatic rules on or off. You can also assign your own keyboard shortcut to start an optimization.
Interface and language options
Wise Memory Optimizer scales cleanly on high-resolution displays, including 4K monitors at 100%, 150% and 200% Windows scaling. The interface is available in more than forty languages.
