Common is a privacy layer designed to extend privacy across all of Web3, while Railgun focuses specifically on anonymizing all on-chain activity. The key difference is scope: Common aims for broad Web3 integration, whereas Railgun targets direct blockchain transactions. Common suits projects seeking a universal privacy layer; Railgun is best for users wanting private DeFi and token transfers.
| Token Price | — | — |
| 24h Change | — | — |
| Market Cap | — | — |
| TVL | $1.4KDefiLlama | $82.4MDefiLlama |
| MCap Rank | #3292 | #272 |
| Total Raised | $23.2M | $10.0M |
| Founded | 2018 | 2021 |
| Stage | — | — |
| X / Twitter | 12K | 42K |
| GitHub Stars | 88 | 33 |
| Chains | arbitrumbasebnb-chain | arbitrumbnb-chainethereum |
| Tags | DEX, Privacy, DeFi | Privacy, Infrastructure, Smart Contract Platform |
Common is a privacy layer for Web3 that combines a decentralized exchange, shielder contracts, and an MPC wallet to break the traceability of crypto activity without centralized exchanges. It uses zero-knowledge proofs to protect user privacy and mitigate MEV and frontrunning.
RAILGUN is a smart contract system that provides zk-SNARK privacy for DEX trading, lending, and any Ethereum transaction. It allows users to build private balances and trade without withdrawing, fully on-chain without bridges or layer-2s. The project also features a governance token (RAIL) for stakers to vote on protocol updates.

