If you’re planning a crypto exchange, picking the right smart contract framework is super important for successful decentralized exchange development. The most popular choice is Solidity with Ethereum, which has lots of support and ready-to-use libraries. Vyper on Ethereum is another option if you want simpler, more secure contracts.

For other blockchains, Rust with Solana works great for fast and cheap transactions, while Move is used on Aptos and Sui for newer, secure smart contracts.

The right framework depends on which blockchain you want to launch on, how fast transactions need to be, and how easy it should be to maintain.