beaconcha.in is an open source explorer that provides users with an easy and accessible way to explore the Ethereum network.

Building an Explorer for Everyone

Carmine Options AMM has a simple goal. Take care of crypto risk.

Chore Wheel is a DAO platform for housing communities, providing tools for managing labor contributions, behavioral norms, and shared funds

An open source mobile wallet with account abstraction (ERC4337) that you can customize for your community.

Dappnode is a free and open source platform that allows anyone to easily deploy and run decentralized applications (DApps) and validators.

DeFi analytics

EthStaker is a community of 50,000+ members providing guidance, education, support, and resources for existing and potential stakers. EthStaker’s principle goal is to maximize decentralization of the Ethereum network.

EAS is an open standard for making onchain and offchain attestations about anything.

The Ethers.js library is a complete and compact library for interacting with the Ethereum (and ilk) Blockchains and ecosystem.

Facet: The Unstoppable Ethereum Rollup

Funding the Commons (FtC) originated as an event series aiming to cultivate a public goods community spanning across the spectrum, including Web2, Web3, research, philanthropy, government, and industry.

The Gitcoin Grants Data Portal is an open-source, serverless, and local-first Data Platform for Gitcoin Grants Data that improves data access and empowers data scientists to conduct research that guides community-driven analysis.

Giveth is onboarding real-world impact projects to web3 by empowering them with free access to novel fundraising mechanisms and new ecosystems of donors, while inspiring them to dive deeper down the blockchain rabbit hole.

Glo Dollar (USDGLO) is the stablecoin that funds public goods. 🌈☀️

Hey is a decentralized and permissionless social media app built with Lens Protocol 🌿

The Hypercerts Foundation pioneers open-source protocols to transparently fund and reward positive impact. Hypercerts are web3 tools that track impactful work, assess its value, and enable the sale of its impact.

IDRISS builds apps uniquely enabled by crypto and AI.

JobStash is a Crypto Native Job Aggregator provided as a public good to the entirety of the Crypto Community.

Kleo is a user Owned Data DAO that enables AI models and data-driven projects (developers) to access high-quality, ethically sourced user consumption data through a decentralized platform, where users earn rewards by contributing encrypted data via a browser extension.

L2BEAT is a dedicated analytics and research platform for L2 scaling solutions.

An OG image service and integration for POAP in the Farcaster ecosystem, developed a sponsorship history page, enhanced web interaction, and expanded notification system for event updates

Hey all, we're building free and open source tools to help you stay safe in web3! 👋

rotki is an open source portfolio tracking, accounting, analytics and tax reporting tool that protects your privacy.

ShapeShift is the best alternative to a CEX; a free, permissionless interface to the DeFi universe.

Decentralized media-sharing social media platform, built using Lens protocol. 🌿

The Tor Project is a 501(c)(3) nonprofit.

Viem is used in production today–with over 557k weekly downloads–by popular Applications, Wallets, and Libraries such as: Uniswap, Coinbase + Base, Warpcast, Stripe, Shopify, Optimism, ENS, Zora, WalletConnect, Sushi, Friend.tech, Rainbow, Gitcoin, and more.

ZK Email is a set of open source SDKs, libraries, and protocols (https://zk.email) that support making anonymous proofs of redacted existing emails on chain.

ZKP2P harnesses zktls to build p2p markets for all kinds of assets including fiat, Ticketmaster tickets, and Namecheap domains, entirely on chain.