What is ETHTokyo?
We are a community of Tokyo-based developers and professionals, driven by a shared sense of cypherpunk ethos and optimism for the future, dedicated to advance the development and adoption of Ethereum.
ETHTokyo is an engaging conference and hackathon for the global Ethereum community where people with all sorts of backgrounds, ideas, and skills come together to share their love for Ethereum and its world.
Whether you're a seasoned expert or just curious, you'll find friends and inspiration here. Our goal is simple: to connect diverse minds and foster the creation of amazing new innovations for the future. Join us and be a part of shaping what's next in the Ethereum universe!
2025 theme: Emancipatory Tech for Future of Humanity
Emancipation begins in the mind; let us radically reimagine how we can harness technology to empower people, preserve culture, and build a sustainable future in ways not possible today.
The goal is to innovate not for its own sake, but to envision new ways and better approaches to do things through reshaping and redefining the constraints of our own constructed reality.
Overview
Conference
Join industry leaders, developers, and enthusiasts for a day of inspiring talks, panel discussions, and networking opportunities. Learn about the latest developments in Ethereum and blockchain technology.
Hackathon
Put your skills to the test in our multi-day hackathon. Collaborate with talented individuals, build innovative solutions, and compete for exciting prizes. Open to all skill levels.
Conference
The ETHTokyo 2025 Conference brings together the latest in Ethereum technology and industry trends. Join top developers, leaders, and visionaries for knowledge sharing, networking, and collaboration opportunities.
Panel Discussions showcase
Featuring keynote speeches, panel discussions, workshops, and diverse sessions for all experience levels.
Audrey Tang at ETHTokyo'24
Hear from top experts and builders in the Ethereum Community, major projects, and research institutions.
Featured Speakers
Hackathon Official Tracks
Join one of our official tracks and compete for prizes while building the future of Ethereum.
Build the Future
Join hundreds of developers building innovative solutions
Expert Mentorship
Get guidance from industry leaders and Ethereum experts
Demo Day
Present your project to judges and the community
đ„·Cypherpunks Anonymous
In a world where surveillance and data exploitation have become the norm, privacy is not just a right â it's a necessity. The Cypherpunk movement emerged to challenge this status quo, using cryptography as a tool to empower individuals to reclaim control over their digital lives.
Finalists
Anastasia
Anastasia is a zero-knowledge system that proves the validity of X.509 certificate chains while revealing only the minimum information required.
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Wrapped Monero
A privacy-focused bridge between Monero (XMR) and Ethereum, featuring encrypted balances using Fhenix's Fully Homomorphic Encryption (FHE).
View Project â
zkPay
Shielded pools and zk-KYC allow KYC-verified users to transfer anonymously while complying with AML/CFT, and enable instant, low-fee payments in Japan.
View Project â
ZK-Location Proof
Securely verify your location in a designated area without exposing your exact location. Prove you are in Tokyo, while hiding that you are in Shibuya.
View Project â
zkPerks
A privacy-preserving marketplace where users claim verified rewards using zero-knowledge proofs of email authenticity without revealing personal information.
View Project ââCounterculture Capital
Five years after DeFi Summer, we've witnessed the evolution from simple token swaps to sophisticated financial instruments rivaling traditional markets in complexity and capability. From lending protocols to prediction markets that democratize forecasting and information discovery, DeFi continues to drive the ongoing financial revolution.
Finalists
ShinoBee
Hide the edge, share the returns. Shinobee turns private trading strategies into verifiable DeFi vaults.
View Project â
World to Peer
Unsecured Ă Personal Ă DeFi Lending A new unsecured lending system that addresses financial inclusion and minimum disclosure.
View Project âđActually Intelligent
The well-praised technological breakthrough that is Artificial Intelligence faces a dilemma. Behind the convenience it offers, the technology is increasingly being appropriated into manipulative ad engines and corporate-enterprise surveillance. At ETHTokyo, we're here to flip that.
Finalists
Toku Kaigan
Empowering accessible mental wellness with a gamified anime style AI psychiatrist that delivers personalized, adaptive care and real-time progress insights in a TEE(Trusted Execution Environment)
View Project â
Prompt Pieper
Prompt compression for LLMs: cut token usage and costs, unlock larger context windows, and build faster without interruptions
View Project âSponsor Track Finalists
đ PizzaDAO Track
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A DeFi vault that reallocates $ETH deposits between higher risk $ETH and lower-risk $USDC Lazy Summer Protocol vaults based on live Pentagon Pizza Index signals.
View Project âPizza Roulette Game
DJ DOGE - Eat Pizza Collect Stamps
đ ENS Track
zk-IoT
zkIoT is a framework to enable IoT devices to prove compliance with rules or thresholds without revealing raw sensor data.
View Project â
MizuPass
Universal privacy first ticketing platform: ENS DID + ZKPassport verification + stealth JPYM payments + offline ZK proofs for seamless cross-border event access.
View Project â
Luft Deck
A privacy-preserving, proximity-based business card sharing app built with zero-knowledge proofs and P2P networking.
View Project âđïž JAPAN SMART CHAIN Track
Mamizu Cash
Shielded pool for B2B payments: unlinkable transfers via zkSNARKs, KYB/KYC enforced with ZK Email (UNTI/ERC-6268) and Mizuhiki. Audit-ready privacy for enterprises without sacrificing compliance.
View Project âMizuPass
Universal privacy first ticketing platform: ENS DID + ZKPassport verification + stealth JPYM payments + offline ZK proofs for seamless cross-border event access.
View Project âzk-IoT
zkIoT is a framework to enable IoT devices to prove compliance with rules or thresholds without revealing raw sensor data.
View Project âGallery 2024
Relive the memories of ETHTokyo 2024 through photos.
Take a look at the conference and hackathon scenes from last year.
Event Schedule
ETHTokyo 2025 features a one-day conference and a three-day hackathon. Join us for sessions with industry-leading speakers and hands-on development experiences.
Conference
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Hackathon
Schedule Link
Sessions are subject to change
Side Events
Join our community events and meetups happening around ETHTokyo 2025. Discover workshops, networking events, and more!
Venue & Travel Info
Everything you need to know about the venue and getting around Tokyo
Conference Venue
Join us for a day of insightful talks and exchanging ideas at the United Nations University, a prestigious venue in the heart of Tokyo's vibrant Shibuya district.
Omote-Sando (èĄšćé) Station
Hackathon Venue
Join us for an exciting three-day hackathon at Digital Garage in the heart of Tokyo's vibrant Shibuya district.
Shinsen (ç„æł) Station
Venue Support
Platinum Sponsors
Gold Sponsors
Silver Sponsors
Community Sponsors
Event Partners
Media Partners
Endorsements
Organizers
