ZKSwap is a token exchange protocol and a Layer-2 decentralized exchange (DEX) based on ZK-Rollup technology. This means it's faster and cheaper than a DEX built directly on Ethereum. Layer-2 transactions are completed instantly without waiting for block confirmations while gas fees are reduced by tens of times. The protocol is built on the Automated Market Maker (AMM) model, which gives Ethereum users free access to the ZKSwap service. Through Zk-Rollups technology, all ERC20 tokens are transferred through Layer 2, and the consistent state of Layer1 and Layer2 is guaranteed based on continuously generated zero-knowledge proofs. This solution allows all transactions and swaps to execute on Layer 2, achieving real-time swap with zero gas fees, unlimited scalability, removing the constraint from Ethereum's TPS.