openzeppelin/rust-contracts-stylus

OpenZeppelin Contracts for Stylus is a library that gives developers building on Arbitrum's Stylus platform a set of pre-built, security-audited smart contract components. Instead of writing common blockchain contract logic from scratch and risking costly bugs, you get battle-tested building blocks for things like tokens, ready to drop into your project. Arbitrum Stylus is a system that lets you write smart contracts in Rust (instead of the usual Solidity), which then get compiled into a compact form called WebAssembly. This library ports the well-known OpenZeppelin Contracts, a standard in the Ethereum world for secure contract code, over to Rust so they work natively on Arbitrum chains. The example in the README shows how you can spin up an ERC-20 token (the standard type of crypto token) by essentially importing the library's token module and wiring up a handful of functions that delegate to it. The primary audience is developers who want the performance and tooling benefits of Rust while deploying to Arbitrum, but who don't want to reinvent or self-audit core contract logic. If you're launching a token, building a decentralized app that needs permission controls, or anything where a contract bug could lose people money, starting from audited, familiar components is the safer path. The project also ships testing helpers so you can validate your contracts before going live. A few things stand out about how it's built. The library avoids Rust's standard library on purpose to keep the compiled Wasm as small as possible, which matters for on-chain deployment costs. It requires a specific nightly version of the Rust compiler to take advantage of unstable optimization flags. The project also releases alpha versions roughly every three weeks if you want cutting-edge features before they're fully audited, though the README recommends pinning to a stable release for production use. Past security audits are available in the repo for review.