2021.10.06 Technology

● Two-day tech conference to be held online with Japanese, Korean, and English interpreting

● Approximately 60 sessions on various technical challenges and expertise


TOKYO – October 6, 2021 – LINE Corporation ("LINE") is holding its annual tech conference again. This year, LINE DEVELOPER DAY 2021 will be held over two days from November 10 to 11.


LINE DEVELOPER DAY 2021 official website:


Since 2014, LINE DEVELOPER DAY has been the place for LINE to share with engineers the different challenges and projects it has taken on in technical fields for its wide range of services. Last year, the conference was moved online for the first time following concerns over the COVID-19 outbreak. It offered over 150 sessions over three days and attracted more than 15,000 people from mainly Japan and other parts of Asia.

Reference: LINE DEVELOPER DAY 2020 Event Recap



This year, the conference will once again be a virtual event based on the current COVID-19 situation. All sessions will be streamed online and interpreted in Japanese, English and Korean. The conference will kick off with CTO and Director Euivin Park's keynote speech on the company's technology strategy and vision, outlining current and future initiatives to solve problems amid changes in internal/external environments and businesses. This will be followed by approximately 60 carefully chosen sessions on topics such as challenges experienced and knowledge gained in AI, data, machine learning, infrastructure, server-side, and the iOS/Android operating systems, as well as cutting-edge technology currently used by LINE.


Overview of LINE DEVELOPER DAY 2021

・When: Start at 1 pm and expected to finish at 6 pm (JST) on November 10

    Start at 1 pm and expected to finish at 6 pm (JST) on November 11

・Where: Sessions will be streamed on LINE LIVE from the official LINE DEVELOPER DAY 2021 website ( ). All sessions will be delivered in Japanese, English, and Korean.

Admission: Free of charge

How to participate: Submit a registration form to pre-register



Additional details including the schedule and content of sessions will be provided on the following websites and social media accounts.


Official website:

LINE Engineering: