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OpenZeppelin Contracts is a library for secure smart contract development.
A tool for developing smart contracts. Crafted with the finest cacaos.
Web3/Solidity based wargame
Ethereum Token Contracts
Vue Ethereum Ipfs
Distributed Application Starter: Vue front-end, Ethereum / IPFS Backend
Collectible 8-bit characters on the Ethereum blockchain.
Synthetix Solidity smart contracts
Example non-fungible collectible, to demonstrate OpenSea integration
This has been moved to https://github.com/ethereum/remix-project
Smart contracts comprising the business logic of the Matic Network
Code coverage for Solidity smart-contracts
JsAction is a small event delegation library that decouples event binding from the code that can handle the event.
Allows multiple parties to agree on transactions before execution.
Reactive Ethereum dapp UI suite
Openzeppelin Contracts Upgradeable
Upgradeable variant of OpenZeppelin Contracts, meant for use in upgradeable contracts.
Visualize Solidity control flow for smart contract security analysis. 💵 ⇆ 💵
Ʉnlock is a protocol for memberships built on a blockchain.
RANDAO: A DAO working as RNG of Ethereum
Truffle, Webpack and React boilerplate.
Minimi Token. ERC20 compatible clonable token
Eth Gas Reporter
Gas usage per unit test. Average gas usage per method. A mocha reporter.
EtherEx is an open source, fully transparent, next generation decentralized exchange built on Ethereum.
Lightweight Ethereum blockchain explorer
A repository for maintaining lists of things like malicious URLs, fake token addresses, and so forth. We love lists.
A highly optimised, light-weight JS utility for Ethereum.
1st Place 🏆 in the Gitcoin Web3 World Aave Hackathon. A bot that does arbitrage between two Uniswap exchanges using an Aave Flashloan as the capital for initial trade. Got a nice write up from the Aave team - https://medium.com/aave/gitcoin-x-aave-hackathon-r
Example semi-fungible collectible, to demonstrate OpenSea integration for an ERC-1155 contract
Reactive Ethereum datastore for dapp UIs.
Ethereum Input Data Decoder
Ethereum smart contract transaction input data decoder
Ethereum vanity address generator
Colony Network smart contracts
Source repository for fiat tokens on the CENTRE network.
REST API Testing Tool for all levels in a Test Pyramid
Kitty Items: CryptoKitties Sample App
.NET technology stack, including frameworks, platforms, IDE, SDKs, desktop, web, SOA, data, productivity, components, tools etc
OpenZeppelin SDK repository for CLI and upgrades.js. No longer actively developed.
A mapping of ethereum contract addresses to broadly accepted icons for those addresses.
A factory contract for creating metamorphic (i.e. redeployable) contracts.
Openzeppelin Test Helpers
Assertion library for Ethereum smart contract testing
React Ethereum Dapp Example
A starter boilerplate for an Ethereum dapp using web3.js v1.0, truffle, react, and parity
Main smart contracts for Kyber Network, including the main platform contract, reserve contracts etc.
Pooltogether Pool Contracts
PoolTogether prize-linked savings game Solidity smart contracts.
ERC721-based Software Licensing Framework
Basic Solidity Contracts and Libraries to make life easier
This box comes with everything you need to start using smart contracts from a react app with Drizzle. It includes drizzle, drizzle-react and drizzle-react-components to give you a complete overview of Drizzle's capabilities.
Lido DAO smart contracts
Ability to call many ethereum constant function calls in 1 JSONRPC request
Smart Contract Search Engine
Takes a link to a smart contract's raw ABI file and an RPC URL and then indexes all instances of that smart contract
Web3 Vs Ethers
A basic cheatsheet of Web3.js vs Ethers (along w/ example apps!)
Utility to combine Solidity project to a flat file
Smart Legal Contracts & Templating System
A generic token-curated registry
Solidity compilation and Ethereum contract execution interface for hackable atom editor
Smart Contract Watch
A tool to monitor a number of smart contracts and transactions
Babel Plugin Contracts
Featured in Awesome Vue [https://github.com/vuejs/awesome-vue], a curated list maintained by vuejs of awesome things related to the Vue.js framework, and Awesome List [https://awesomelists.net/150-Vue.js/3863-Open+Sou this Truffle Box provides everything you need to quickly build Ethereum dApps that have authentication features with vue, including configuration for easy deployment to the Ropsten Network. It's also Gravatar-enabled. Connecting to a running Ganache
Fabric Chaincode Node
Hyperledger Fabric Node.js Smart Contracts
Solidity By Example
A collection of short yet fully-functional contracts that demonstrate Solidity language features.
agreed is Consumer Driven Contract tool with JSON mock server.
Trustlessly tokenized Bitcoin on Ethereum ;)
The Compound Open Price Feed
AirSwap Contracts and Tools
uPort Contracts for managing identity DEPRECATED
Token Multisender Dapp smart contract. Airdrop tokens. Batch sending ERC20, ETH, Ethereum tokens. Send thousands of transfers in a few transactions. It can help user to save more tx fee and time than sending one by one
A Solidity starter template for implementing Aave's flashloans
Ethereum TypeScript Client Library - for perfect types and tiny builds.
📦📃Dapparatus: reusable dapp components in react: contract loader, metamask, gas, transaction ui, event parers, etc
Armors-solidity is a framework to build secure smart contracts on Ethereum.
Egg Swagger Doc
swagger-ui for egg
Solidity Smart Contracts Samples
General purpose command line tools for interacting with NEAR Protocol
Dapp Development framework based on ethers.js
Eth Balance Checker
Solidity contract to batch balance checks in one call
📑 Documentation Generator for Solidity
A simple Ethereum smart contract + DApp example
Metadata Api Nodejs
Sample metadata API for crypto collectibles, written in Node.js
Pet Shop Box
A box containing all you need to get started with our Pet Shop tutorial.
Node.js library for micropayments in Ether and ERC20 tokens over HTTP
Ethereum Solidity Course Updated Code
Up-to-date Solidity / web3.js / Node.js / React / Next.js code for the udemy.com course Ethereum and Solidity: The Complete Developer's Guide.
Tiny web app to demonstrate subsecond full-stack acceptance tests with Node.js and Cucumber
🛰️ A boilerplate Truffle Box project with Next.js for rapid Ethereum Dapp development
Eth Dev 101
Examples for getting started as an Ethereum web developer
NO BLOCK NO PARTY
Here are all the contracts pertaining to SmartID
Partial Lock Commit Reveal Voting System that utilizes ERC20 Tokens
The Ethereum decentralized exchange assistant. Check token balances, transaction details & trade history.
Vscode Azure Blockchain Ethereum
Blockchain extension for VS Code
(Aragon 1) Monorepo for all Aragon made organization templates
General State Channels
Spankchain PoC implementation of generalized state channels
An IDE to develop Algorand Smart Contracts (ASC1) for the Algorand blockchain
Smart Contracts for applying regulatory compliance to tokenized securities issuance and trading
Contracts Ethereum (3,405)
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