Download KCleaner


Closes all unnecessary processes, leaving only the essential ones running.

  • Easily remove unwanted or forcibly installed security programs.
  • Cleanly terminate malicious programs that disguise themselves with the same names as Windows system processes.
  • Conveniently manage programs that automatically run from various locations at startup.
  • Does not close essential drivers such as graphics or sound drivers. (closing them may cause performance issues).
  • Does not terminate trusted antivirus software.

Version 4.0.2 (2026/10/03)

  • Reduced unexpected program exits on affected systems

Version 4.0.1 (2026/10/01)

  • Reduced the risk of memory related errors and improved reliability by porting to Rust
  • Added file cleanup with options to choose what to remove
  • Improved startup program and service lists for easier management
  • Fixed unexpected program exits immediately after launch on affected systems
  • Improved loading speed for startup/unwanted program lists
  • Reduced screen freezes when refreshing lists

Version 3.8.8 (2026/07/15)

  • Improved memory optimization speed and reliability
  • Enhanced desktop display stability across various PC environments
  • Improved speed by streamlining the cleanup process
  • Improved browser-focused memory management efficiency
  • Added support for Spanish language.

Version 3.8.7 (2026/04/15)

  • Fixed a crash caused by misbehaving security software interfering after clicking the Run button
  • Applied code signing certificate and improved signing process

Version 3.8.6 (2026/03/19)

  • Improved memory management for better efficiency
  • Optimized internal processing for faster system responsiveness
  • Reduced unnecessary memory usage for a smoother experience
  • Enhanced overall stability and performance

Version 3.8.5 (2026/03/15)

  • Added cleanup support for working set, cache, and standby memory
  • Added system memory cleanup feature

Version 3.8.2 (2025/10/24)

  • Improved stability under antivirus or restricted permission environments

Version 3.8.0 (2025/10/23)

  • Improved stability when closing the program
  • Added multi-language support