These are the projects I developed since 2001, most of which are open-source. If you are interested in any of them, please feel free to let me know.

See also: My Github page.


  • Vakuum
  • New online judge system with sandbox. The successor of CmYkRgB123 Online Grading System.
  • PHP C++
  • GNU Public License v2
  • MapleStory Calculator
  • A calculator to predict roles' ability points in the game "Maple Story".
  • Visual Basic 6.0
  • Cloud Icon Fighter
  • A game that enables two icons to fight each other.
  • Visual Basic 6.0
  • Crazy Mail
  • A tool that utilizes public SMTP servers to send spams.
  • Visual Basic 6.0
  • SCalc
  • A calculator with lots of fun functionalities.
  • Visual Basic 6.0