Learn about core web3 development concepts including Ethereum, layer 2s, testnets, blockchain developer tools and more!
The Rinkeby testnet is a proof-of-authority testnet web3 developers use to test their application's smart contracts before deploying them to Ethereum's mainnet.
Explore Ethereum scaling solutions including layer 1 solutions like sharding, layer 2 solutions like rollups, and EVM-compatible sidechains like Polygon!
Ethereum layer 2 solutions inherits the security of the main Ethereum network, while sidechains rely on their own security mechanisms.
Goerli ETH or goETH is a testnet token developers get using a Goerli Faucet so they can test smart contracts on the Goerli testnet without spending real Ether.
The Ethereum Name Service enables people to convert wallet addresses into human readable .eth domains. Learn how to buy an ENS domain name.
Testnet MATIC is fake MATIC that web3 developers get using a Mumbai Faucet so they can test applications before deploying them to Polygon's mainnet.
Running a node compared to using a managed service like Alchemy gives developers complete control of their node at the cost of maintenance, reliability, time.
A cross-chain bridge connects blockchains and testnets to enable users and developers to transfer digital assets and information across independent networks.
The Mumbai Testnet is used by web3 developers building applications on the Polygon sidechain where they can use Mumbai MATIC tokens without spending real MATIC.
Explore popular blockchain developer tools including programming languages like Solidity, frameworks like Truffle, SDKs, and tools to secure smart contracts.
The Merge is an upcoming upgrade to the Ethereum network where Ethereum's Proof of Work chain will be merged with the Beacon Chain (Proof of Stake).
Here are five things to know to become a blockchain developer: programming languages, blockchain fundamentals, consensus mechanisms, hashing functions, and gas.
DeFi, or Decentralized Finance, is a collection of web3 applications that offer alternatives for currency exchanges, lending, banking, remittance, and more.
Decentralized storage applications like IPFS, Arweave, and Filecoin distribute data storage across different participants in a peer-to-peer network.
EIP-1559, or the London Hard Fork, was implemented on August 5th, 2021 to optimize the cost of gas and reduce congestion on the network.
WalletConnect is an open-source protocol that developers integrate into their application to enable users from 166 wallets to connect to their application.
The Beacon Chain is a Proof of Stake blockchain that serves as the consensus layer for the Ethereum network whereas the main blockchain is the execution layer.
Staking is the process of delegating tokens to a validator, directly or through a liquid staking protocol, to help secure the network and earn network fees.
OpenZeppelin is a blockchain cybersecurity company that creates open-source frameworks for building secure smart contracts and offers security audits.
Testnets are blockchains that mimic the production environment of live blockchains developers use to test smart contracts before deploying their applications.
There are a few types of Ethereum nodes including light nodes, archive nodes, and full nodes which work together to mine new blocks and serve requests of data.