ETHOnline 2021

ETHOnline broke our previous record for attendance, eclipsing this year’s HackMoney event.


  • 1,160+ Staked Hackers
  • 54 Partner Teams
  • $350,000 in Prizes
  • 77 Countries & 19 Timezones
  • 218 Project Submissions
  • 17 Finalists
Hackers joined us from almost every continent (let us know if you have any friends in Antarctica…)

Our Finalists:

Nifty Pixels

“Nifty Pixels is an NFT marketplace where you can create, buy, and sell pixel art NFTs”

🔪 Splice

“A generative art project that renders deterministic, validated header images for existing NFTs”

🐶 Degen Dogs

“An NFT series that invests in DeFi and streams money to owners.”

📕 NFT Metadata Explorer

“A custom metadata explorer for any NFT collection that can be deployed quickly.”

🍵 Just Mint

“A batch-based system to mint and distribute NFTs powered by ChainLink VRF.”


“ is an all-in-one NFT analytics tool, for everyone. Tracks new mints, trending projects, and statistics for every Ethereum-based NFT.”

💿 Variety.Finance

“Variety defends the interest of Liquidity Providers (LPs) by developing LP Protection features for UniswapV2-like protocols and channeling savings into a treasury fund for LPs. In this way, LPs benefit from the long term to offset impermanent loss.”

💰 Vialend

“A Uniswap V3 automated liquidity management tool that uses a unique vault design combining lending and V3 pools.”

🍲 Myso

“Zero-Liquidation Loans: building DeFi’s first loan option that spares borrowers from liquidations!”

👩‍🌾 Silo Finance

“Silo Finance aims to be the safest and easiest way to borrow and lend any crypto asset. With our unique deposit strategies, users get the highest interest rate on their ETH deposits adjusted for their risk tolerance.”

🌞 Risedle

“Risedle is a decentralized Crypto Leveraged ETFs market protocol”

🦈 LonesomeShark

“Using flash loans as a source for good to offer liquidation protection to DeFi borrowers.”

🪐 Neptune

“Neptune creates a financial layer on top of StackOverflow”

♻️ Andsub

“On-chain subscriptions as NFTs paid in ERC20 tokens”


“Unlock protocol for your eth address details. Powered by Superfluid and Polygon. Live today at"

🪝🧱 Blockhook

“Block Hook is a mircoservice to trigger custom webhooks based on onchain contract events.”

🧙‍♂️ Paymagic

“Paymagic is a payment tool for DAOs and crypto teams. Send batch transfers, airdrops, vesting schedules, streaming payments, and more all from one easy to use app.”

A celebration of Ethereum

ETHOnline was a perfect way to cap off an incredible year in our ecosystem. To celebrate, we hosted talks and workshops from every part of the community. Check out some of the highlights below.

ETHOnline Partners

The past month wouldn’t have been possible without the support of our partners and sponsors. Thanks for joining the event, mentoring hackers, hosting workshops, and participating in judging!

Our incredible partners of ETHOnline 2021

Up Next

Our final event of the year is happening now! Join us + our friends at Protocol Labs for Web3 Jam, a two-week virtual hackathon focused on decentralized media, Web3, and NFTs. Though applications have closed, don’t miss the Finale—streaming Wednesday, Nov. 24th at 12pm ET on



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Onboarding thousands of developers to the Ethereum ecosystem. Supported by L4, SV Angel, and the Ethereum Foundation.