what's Remix Ethereum IDE?

Remix is an open-source, browser-based integrated development environment (IDE) designed for building, testing, and deploying smart contracts on the Ethereum blockchain and compatible networks. It supports Solidity, Vyper, and other languages, providing features like a code editor, compiler, debugger, and in-browser Ethereum Virtual Machine (EVM) simulation for rapid prototyping without local setup. Users can connect to live networks via wallets like MetaMask for deployment and interact with contracts through a built-in console. The tool includes plugins for tasks such as static analysis, testing with Hardhat or Foundry integration, and verification on explorers like Etherscan. Remix emphasizes accessibility for developers of all levels, with tutorials and an AI assistant for code completion. As part of the Ethereum ecosystem, it facilitates decentralized application (dApp) development by handling gas estimation, transaction signing, and artifact management in a user-friendly interface.

Remix IDE recently showcased stack-too-deep solutions, performance, and Core Solidity with Solidity and Octant.