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A collection of audited contract templates and security‑focused utilities from ConsenSys Diligence, including ERC standards and upgradeable patterns.
A lightweight standard library for Solidity offering reusable implementations of ERC‑20, ERC‑721, ERC‑1155, and common access‑control patterns.
Community‑maintained forks of the OpenZeppelin Wizard that generate customized contract scaffolding with additional extensions.
Hardhat plugin that provides upgradeable contract patterns and proxy management, serving as an alternative to the core contracts library.
#6 DappTools
A suite of Solidity development tools, including a standard library of audited contracts and a powerful testing framework.
Python‑based framework that bundles a set of vetted contract templates and utilities for rapid dApp development.
Pre‑packaged starter kits containing reusable contract modules (ERC‑20, ERC‑721, governance) for quick prototyping.
Community‑curated Hardhat boilerplates that include secure contract implementations and upgrade patterns.
#10 Embark Framework
Full‑stack dApp framework with built‑in contract libraries for token standards, access control, and decentralized identity.
Mirrored repositories that extend OpenZeppelin contracts with additional features such as meta‑transactions and gas‑optimizations.
Official Chainlink contract suite offering oracle integrations, VRF, and secure token interfaces.
#13 Aragon OS
Modular framework for building DAO‑centric contracts, providing permissioning, voting, and finance modules.
Library of multi‑signature wallet contracts and related utilities for secure asset management.
Contracts enabling real‑time finance streams, token flows, and programmable money.
Privacy‑focused contract library offering zero‑knowledge proof primitives and confidential token standards.
Contracts that enable meta‑transactions, allowing users to interact with dApps without holding native gas tokens.
Implementations of the Diamond proxy pattern, providing modular contract architecture and upgradeability.
Automation platform offering pre‑built contract scripts for upgrades, admin actions, and scheduled tasks.
Early‑access community fork of the upcoming V5 release, featuring new ERC‑4626 vaults and ERC‑6551 token bound accounts.
Optimized contract library for zkSync rollups, including ERC‑20, ERC‑721, and bridge contracts.