List of hackathons in Japan in 2017

Coders, designers, and entrepreneurs in Osaka! AngelHack invites you to sign up to participate in the AngelHack Global Hackathon Series: Osaka. Compete on your own, or collaborate as a member of a team to come up with an idea and turn it into a functioning prototype. You're not limited! You could build an app that delivers positive value to your community, a website satisfying an unmet financial need, a virtual reality game, or whatever your imagination can conceive.

Dapp developers in and around Tokyo! Recruit Lifestyle invites you to sign up and participate in the Ethereum Hackathon Tokyo. You'll be challenged to design and build Dapps (decentralized applications) using technologies such as the blockchain-based Ethereum distributed computing platform. You'll get to select a project theme based on one of Recruit Lifestyle's business areas such as food and beverage, beauty, travel, healthcare, and business support.