ETHGlobal Tokyo 2026 is a three day in-person hackathon at Toranomon Hills Forum in Minato City, Tokyo, running 25 to 27 September 2026. ETHGlobal expects 800 or more attendees, 10 or more protocols and around 29 workshops, with technical mentorship, curated content, free food and drinks and a beginner-friendly on-ramp. 75,000 USD is available in prizes, with published partner allocations of 15,000 USD from World, 10,000 USD each from ENS and the Uniswap Foundation, and 5,000 USD each from Sui and 1inch. Teams are 1 to 5 people and may apply for up to three sponsor SDK prizes. For 2026 ETHGlobal changed two rules: a project no longer has to start from an empty repository, and hackers may instead extend an open source repo they already maintain, or ship a new feature on an existing product and release it as open source. Pragma Tokyo 2026, ETHGlobal's conference day, runs alongside it on 26 September 2026.