ETHOnline 2025 is a major online hackathon hosted by ETHGlobal, designed to unite developers and innovators within the Ethereum ecosystem. Running from October 3–31, 2025, this event invites participants to build
Decentralized Applications (dApps), explore new blockchain technologies, and compete for a share of the $50,000 prize pool. With contributions from key partners like Gnosis, Hardhat, and Pyth Network, ETHOnline fosters innovation across various sectors, from decentralized finance (DeFi) to privacy and security solutions.
Participants will have the opportunity to showcase their skills, collaborate with leading experts, and gain exposure within the growing
Web3 Community. The event promotes learning, networking, and hands-on experience in developing projects using Ethereum, Solidity, and other blockchain tools. This virtual event promises to be an exciting and valuable opportunity for developers to contribute to the future of decentralized technologies and showcase their capabilities in front of a global audience.