What code is Ethereum written? The Ethereum Language source code was written using Solidity 0.4. 0. Rate this answer! Related Questions What Is NFT And How Does It Work? What Does It Mean To Buy An NFT? What is an example of NFT? Can I buy an NFT? Is NFT a Cryptocurrency? Is NFT real money? Are NFTs dead? What is NFT in Crypto? How much money do you need to start an NFT? Where can I buy bomb tokens?