What is JavaLab?

  • Free interactive science simulation written by JavaScript
  • Simulates various natural phenomena
  • Includes about Physics, Chemistry, Earth, Astronomy, Biology, Measurment, Mathmatics...
  • No need to plugin add-ons
  • Available on mobile devices and tablets also
  • Free of charge / No membership

About Author

  • https://www.facebook.com/dongjoonjava
  • https://twitter.com/javalab_org
  • An ordinary middle school science teacher in Korea(south)
  • 1st Winner of the 'Science Teacher of the Year Award(Science and Culture Division of Korean governments)'
  • Webmaster of Korea National Science Teachers Association
  • Had some seminars with local teachers in East Timor, Vietnam and Tanzania
  • Published some books about electronic circuits
  • Had a lot of lectures about electronic circuits, coding, and MBL for school teachers across the country
  • Received awards and medals from the President of Korea on Teacher's Day(2021.5.15.).
    스승의날 대통령 표창
    대통령 표창장


  • 1996, Begin development with the form of Java applet
  • 1998, Start to service in Korea
  • 2014, Provides more than 500 virtual science simulations (Java applets code)
  • 2015, Begin rewriting Java code to JavaScript(HTML5)
  • 2017, Japanese service
  • 2018, English service
  • 2019, Mobile optimization
  • 2020, Supports fullscreen mode
  • 2022, Migrate server to AWS
  • 2023, Supports global CDS(Content Delivery Network)