
Railgun
Railgun is an on-chain privacy system where users send and use tokens privately across Ethereum, BSC, Polygon, and Arbitrum.

What is Railgun?
Railgun is an on-chain privacy system. Users shield tokens into private 0zk addresses, then send funds or interact with DeFi through zero-knowledge proofs — directly on Ethereum, BSC, Polygon, and Arbitrum, with no bridges or separate chain. Private Proofs of Innocence (PPOI) keep the privacy set protected, and wallets like Railway, Anon, and Terminal integrate Railgun via its SDK.
Web3 dapps and developer tools related to Railgun
Discover blockchain applications that are frequently used with Railgun.
Developer resources from Alchemy

Solidity gas optimization: 12 techniques to make your smart contracts cheaper and more efficient
Want to write better code and lower your gas fees?

A developer's guide to the web3 stack
The web3 stack in 2026, layer by layer: networks, infrastructure, smart contracts, wallets, frontends, storage, applications, and the new agentic layer.

How Virtuals built the infrastructure for AI agent economies with smart wallets
Programmable smart wallets enable tens of thousands of autonomous transactions across 10+ AI agents
Railgun alternatives
Explore web3 competitors and apps like Railgun.
App store listings are independently reviewed and written by Alchemy using a combination of inbound submissions, editorial research, public project sources, and third-party directories, including ecosystem data from The Grid under the Open Database License, DefiLlama, DappRadar, Reown, and chain ecosystem pages.

