What is Javalab?

Free interactive science simulation(Virtual lab) 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 Main programmer

Name: DongJoon. Lee
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.).
Online training for fusion science exploration

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(Amazon Web Service)
2023, Supports global CDS(Content Delivery Network)
2023, Start to service Javalab Logger
2023, In one year, Javalab recorded 2.45 million visits and 12 million page views (Google Analytics)
2024, IP address-based ‘Like♡’ and ‘Comment💬’ system applied
2024, WordPress theme change for optimization
2025, Launch of URL shortening service shor.kr
2025, Launch of image board service web-class.org