ETHOnline 2025

Get ready to sign up for the final Ethereum hackathon, enjoy! ETHOnline 2025 is coming to you sincerely, going for walks from October 10 to 31, 2025. For over three weeks, creators, developers, and blockchain lovers from throughout the globe will collaborate, innovate, and push the boundaries of the Web3 era—all from the comfort of home

What is ETHOnline 2025?
Ethonline 2025 is an emergent online Etreum Hackathon, designed to run incredibly in three action-packed weeks. Teams worldwide collaborate on dApp development, leverage cutting-edge Web3 assets, and get hold of steerage from pro specialists to bring their visions to life.

Organized By

This event is hosted by ETHGlobal, a leading global community that fuels Ethereum’s growth through ETHGlobal hackathons, developer workshops, and educational events.

Event Highlights

• Kickoff & Summit: Inspiring keynotes and networking.
  
• Workshops & Brainstorming: Learn, percentage, and shape your dream team.
  
• Project Feedback Sessions: Get professional input and refine your ideas.
  
• Finale & Judging: Showcase your venture to the world and earn popularity.
  

Schedule at a Glance

• Pre-Event Workshops (Oct eight–9): Prepare and brainstorm with peers.
  
• Week 1–3 Hacking (Oct 10–31): Build, check, and iterate your dApps.
  
• Project Submissions (Oct 26): Share your paintings with the network.
  
• Judging & Finale (Oct 27–31): Celebrate achievements and prize winners.
  

Prize Details

• $10,000 prize from Avail (Web3 infrastructure for modular execution layers)
  
• $10,000 prize from Blockscout (Open-source blockchain explorer on 1000+ chains)
  
• $10,000 prize in PayPal USD (Digital commerce and PayPal stablecoin PYUSD)
  
• $5,000 prize from Envio (Multi-chain EVM blockchain indexing framework)
  
• $5,000 prize from Lit Protocol (Decentralized signing, encryption, and web3 product base layer).
  
• $5,000 prize from Hardhat (Ethereum development environment with Rust rewrite, Solidity tests).
  
• $5,000 prize from Arcology (Ethereum scaling via parallel execution and concurrency control).
  
• $500 prize from Pyth (Real-time oracle for asset price data across 100+ blockchains).
  

Why Join ETHOnline 2025?

• Learn: Access mentorship, assets, and technical workshops.
  
• Build: Transform your thoughts into actual Ethereum dApps.
  
• Network: Collaborate with worldwide builders and blockchain innovators.
  
• Grow: Gain popularity from pinnacle Web3 corporations and leaders.
  

Judges, Speakers & Mentors

• Petra – Precog Market.
  
• Quintus Kilbourn – Flashbots.
  
• Kartik Talwar – ETHGlobal.
  
• Pascal Rüger – ETHGlobal.
  
• Harshith Vaddiparthy – JustPaid YC [W23].
  
• Pandit Dhamdhere – Catapulta.
  
  
  Click here to attend this hackathon where you can join with developers worldwide for async blockchain hacking, mentorship, prizes, and Ethereum dApp development opportunities.