We'd like to thank all of the engineers who attended and helped make this event a smashing success. The slides and other materials presented during the conference are available. Please see the details of each seminar for more information.


LINE is a communication app released globally in over 230 countries and regions worldwide.

Over 10 billion messages are exchanged daily through LINE, and the app offers more than 60 related services. LINE’s growth is accelerating as a platform that spans online-to-offline strategies, payment, entertainment, digital content, marketing, and beyond.

In the midst of these changes, we sometimes face technical challenges that don’t have easy answers. These issues affect not only LINE, but are common to all services.

At LINE DEVELOPER DAY_2015 Tokyo, our team of engineers will share their experiences, including unresolved issues we still face to this day, with our guests. We hope this will be an opportunity for all of us to deepen our collective knowledge.

We look forward to seeing you there!

10:30 am to 7 pm, Tuesday, April 28, 2015
Hikarie Hall
Official Information
LINE Twitter
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Click the title of the session to view the related videos and slides.

program schedule



Hikarie Hall, 9F Shibuya Hikarie, 2-21-1 Shibuya, Shibuya-ku, Tokyo 150-8510
Access by Train
Shibuya Hikarie is directly connected to exit 15 of Shibuya Station for the following lines: Tōkyū Tōyoko Line/Den-en-toshi Line, Tokyo Metro Hanzōmon Line/Fukutoshin Line.
Please use the 2F direct passageway if you are coming from a JR line, Tokyo Metro Ginza Line or the Keio Inokashira Line.