Solidity is a popular programming language for writing smart contracts on the Ethereum blockchain. It supports inheritance, libraries, and complex user-defined types.
Geth is an Ethereum node implementation that allows developers to mine ether, create smart contracts, and explore block history. It supports Windows, Mac, and Linux.
Hyperledger Fabric is a modular blockchain framework that provides a foundation for developing applications and solutions with a high degree of confidentiality, resiliency, and scalability.
Truffle is a development environment, testing framework, and asset pipeline for Ethereum, aiming to make life as an Ethereum developer easier.
MetaMask is a browser extension that allows users to interact with the Ethereum blockchain. It acts as a wallet and a gateway to decentralized applications.