Railgun is a fully on-chain privacy protocol for DeFi, enabling private transactions and interactions with smart contracts. Zama develops Fully Homomorphic Encryption (FHE) technology to enable privacy on blockchains at the computation level. They differ in approach: Railgun focuses on private DeFi within existing chains, while Zama provides a cryptographic layer for general-purpose blockchain privacy. Railgun suits DeFi users seeking transaction privacy; Zama suits developers building privacy-preserving applications.
| Token Price | — | — |
| 24h Change | — | — |
| Market Cap | — | — |
| TVL | $83.4MDefiLlama | $45.2MDefiLlama |
| MCap Rank | #259 | #283 |
| Total Raised | $10.0M | — |
| Founded | 2021 | 2020 |
| Stage | — | — |
| X / Twitter | 42K | 270K |
| GitHub Stars | 33 | 25K |
| Chains | arbitrumbnb-chainethereum | bnb-chainethereumsolana |
| Tags | Privacy, Infrastructure, Smart Contract Platform | Privacy, Infra, FHE |
RAILGUN is a smart contract system that provides zk-SNARK privacy for DEX trading, lending, and token transfers on Ethereum and compatible chains. It allows users to build private balances and transact without withdrawing, maintaining full on-chain security without bridges or layer-2s.
Zama is an open source cryptography company that develops Fully Homomorphic Encryption (FHE) solutions for blockchain, enabling confidential on-chain transactions and smart contracts. Its technology is used by institutional partners like ApexGlobalGroup for tokenized assets, and it ranks among the top projects in Ethereum developer activity.