Open Source Solidity Software
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Solidity Software
Browse free open source Solidity Software and projects below. Use the toggles on the left to filter open source Solidity Software by OS, license, language, programming language, and project status.
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Remix IDE
Browser-based compiler and IDE
Remix IDE is an open source web and desktop application. It fosters a fast development cycle and has a rich set of plugins with intuitive GUIs. Remix is used for the entire journey of contract development as well as act as a playground for learning and teaching Ethereum. Remix IDE is part of the Remix Project which is a platform for development tools that use a plugin architecture. It encompasses sub-projects including Remix Plugin Engine, Remix Libs, and of course Remix-IDE. Remix IDE is a powerful open source tool that helps you write Solidity contracts straight from the browser. It is written in JavaScript and supports both usage in the browser, but run locally and in a desktop version. Remix IDE has modules for testing, debugging and deploying of smart contracts and much more. -
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Echidna
Ethereum smart contract fuzzer
Echidna is a weird creature that eats bugs and is highly electrosensitive (with apologies to Jacob Stanley) More seriously, Echidna is a Haskell program designed for fuzzing/property-based testing of Ethereum smarts contracts. It uses sophisticated grammar-based fuzzing campaigns based on a contract ABI to falsify user-defined predicates or Solidity assertions. We designed Echidna with modularity in mind, so it can be easily extended to include new mutations or test specific contracts in specific cases. Optional corpus collection, mutation and coverage guidance to find deeper bugs. Powered by Slither to extract useful information before the fuzzing campaign. Source code integration to identify which lines are covered after the fuzzing campaign. Curses-based retro UI, text-only or JSON output. -
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Brownie
A Python-based development and testing framework for smart contracts
Brownie is a Python-based development and testing framework for smart contracts targeting the Ethereum Virtual Machine. Powerful debugging tools, including python-style tracebacks and custom error strings. The recommended way to install Brownie is via pipx. pipx installs Brownie into a virtual environment and makes it available directly from the command-line. Once installed, you will never have to activate a virtual environment prior to using Brownie. Brownie documentation is hosted at Read the Docs. Use tox to run the complete suite against the full set of build targets, or pytest to run tests against a specific version of Python. If you are using pytest you must include the -p no:pytest-brownie flag to prevent it from loading the Brownie plugin. -
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Remix Project
Compiler and IDE that enables users to build Ethereum contracts
Remix Project is a rich toolset including Remix IDE, a comprehensive smart contract development tool. The Remix Project also includes Remix Plugin Engine and Remix Libraries which are low-level tools for wider use. Remix IDE is used for the entire journey of contract development by users of any knowledge level. It fosters a fast development cycle and has a rich set of plugins with intuitive GUIs. The IDE comes in 2 flavors and a VSCode extension. Supported browsers: Firefox v100.0.1 & Chrome v101.0.4951.64. No support for Remix's use on tablets or smartphones or telephones. The gh-pages branch of remix-live always has the latest stable build of Remix. It contains a ZIP file with the entire build. Download it to use offline. It contains the latest supported version of Solidity available at the time of the packaging. Other compiler versions can be used online only. -
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Truffle
A tool for developing smart contracts. Crafted with the finest cacaos.
The most comprehensive suite of tools for smart contract development. Quickly build, test, debug, and deploy using the Truffle CLI. Write scripts and plugins to automate common processes. Interact directly with the blockchain using the Truffle console. Write tests in Solidity, JavaScript, and TypeScript. Truffle will manage your entire workflow. Get a deeper understanding of transactions with the Truffle debugger. Step in/out, set breakpoints, and analyze variables through the CLI and the native VS Code debugger. Debug mainnet transactions by stepping through verified contract source code. Truffle will give you the best view into what's happening. Bring up a local blockchain with pre-funded accounts for fast testing with Truffle’s Ganache. Fork mainnet with zero-config, impersonate accounts, auto-mine blocks, and use Ganache programmatically with Node.js. Print variables for quick analysis using console.log and Vyper’s print. -
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Solidity
The Smart Contract Programming Language
Solidity is a statically-typed curly-braces programming language designed for developing smart contracts that run on Ethereum. Solidity 0.8.4 adds custom structured errors, allows more flexible configuration of the SMTChecker and fixes a bug in the Solidity ABI decoder v2. Read more about the bug here. With v0.8.4, errors can be defined inside and outside of contracts (including interfaces and libraries). This provides a convenient and gas-efficient way to explain to users why an operation failed. As a relatively young language, Solidity is advancing at a rapid speed. We aim for a regular (non-breaking) release every 2-3 weeks, with approximately two breaking releases per year. You can follow the implementation status of new features in the Solidity Github project. You can see the upcoming changes for the next breaking release by switching from the default branch (develop) to the breaking branch. -
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Solidity plugin for IntelliJ
Solidity plugin for IntelliJ
Solidity plugin for IntelliJ. You can support the development by sponsoring the plugin on Github. Supporting the plugin with crypto through the Gitcoin grant. Please attach the screenshot for every issue if possible. It will make the issue much clearer and easier to understand. -
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Woke
Woke is a Python-based development and testing framework for Solidity
Woke is a Python-based development and testing framework for Solidity. A testing framework for Solidity smart contracts with Python-native equivalents of Solidity types and blazing-fast execution. A property-based fuzzer for Solidity smart contracts that allows testers to write their fuzz tests in Python. See examples and documentation for more information. Fuzzer builds on top of the testing framework and allows efficient fuzz testing of Solidity smart contracts. Woke implements an LSP server for Solidity. The only currently supported communication channel is TCP. -
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MEV Arbitrage Bot for Ethereum
Arbitrage bot is a smart contract connected to an external script
MEV Ethereum Trading Bot is an Ethereum arbitrage project that combines a Solidity smart contract with external Python automation. The contract is designed to search for and execute swaps between approved Uniswap pools and routers in a single transaction. Owners can whitelist tokens and routers, configure fees and swap limits, pause execution, revoke approvals, and withdraw assets. The automation layer performs dry-run gas estimates before sending eligible transactions. It also monitors live Uniswap V2 and V3 swap events and displays activity in real time. The project is intended to automate on-chain arbitrage, although actual profitability depends on competition, volatility, liquidity, and gas costs. -
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Slither
Static Analyzer for Solidity
Slither is a Solidity static analysis framework written in Python 3. It runs a suite of vulnerability detectors, prints visual information about contract details, and provides an API to easily write custom analyses. Slither enables developers to find vulnerabilities, enhance their code comprehension, and quickly prototype custom analyses. Slither is the first open-source static analysis framework for Solidity. Slither is fast and precise; it can find real vulnerabilities in a few seconds without user intervention. It is highly customizable and provides a set of APIs to inspect and analyze Solidity code easily. We use it in all of our security reviews. Now you can integrate it into your code-review process. We are open sourcing the core analysis engine of Slither. This core provides advanced static-analysis features, including an intermediate representation (SlithIR) with taint tracking capabilities on top of which complex analyses (“detectors”) can be built. -
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ZoKrates
A toolbox for zkSNARKs on Ethereum
ZoKrates is a toolbox for zkSNARKs on Ethereum. It helps you use verifiable computation in your DApp, from the specification of your program in a high-level language to generating proofs of computation to verifying those proofs in Solidity. Zero-knowledge proofs (ZKPs) are a family of probabilistic protocols, first described by Goldwasser, Micali and Rackoff in 1985. One particular family of ZKPs is described as zero-knowledge Succinct Non-interactive ARguments of Knowledge, a.k.a. zkSNARKs. zkSNARKs are the most widely used zero-knowledge protocols, with the anonymous cryptocurrency Zcash and the smart-contract platform Ethereum among the notable early adopters. Ethereum runs computations on all nodes of the network, resulting in high costs, limits in complexity, and low privacy. zkSNARKs have been enabling to only verify computations on-chain for a fraction of the cost of running them, but are hard to grasp and work with. -
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Qtum
Qtum Core Wallet
Qtum is a decentralized blockchain project built on Bitcoin's UTXO model, with support for Ethereum Virtual Machine-based smart contracts, and secured by a proof of stake consensus model. It achieves this through the revolutionary Account Abstraction Layer which allows the EVM to communicate with Qtum's Bitcoin-like UTXO blockchain. Welcome to the Qtum Ignition Main Network. This is the main network where the tokens hold value and should be guarded very carefully. If you are testing the network or developing unstable software on Qtum, we highly recommend using either testnet or regtest mode. A Proof of Stake consensus system which is optimized for Qtum's contract model. Any user can stake and help to secure the network. There is no voting, master nodes, or minimum amount required. There have been transactions as small as 2 Qtum that have created blocks in the past. Staking from smart contracts is under development. -
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Dapp tools by DappHub
Dapp, Seth, Hevm, and more
Command line tools and smart contract libraries for Ethereum smart contract development. All you need Ethereum development tool. Build, test, fuzz, formally verify, debug & deploy solidity contracts. Ethereum CLI. Query contracts, send transactions, follow logs, slice & dice data. Testing-oriented EVM implementation. Debug, fuzz, or symbolically execute code against local or mainnet state. Sign Ethereum transactions from a local keystore or hardware wallet. dapptools is currently in a stage of clandestine development where support for the casual user may be deprived. The software can now be considered free as in free puppy. Users seeking guidance can explore using foundry as an alternative. This repository contains the source code for several programs hand-crafted and maintained by DappHub, along with dependency management, courtesy of Nix. -
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Hardhat
Hardhat is a development environment to compile, deploy, test
Hardhat is an Ethereum development environment for professionals. It facilitates performing frequent tasks, such as running tests, automatically checking code for mistakes or interacting with a smart contract. Check out the plugin list to use it with your existing tools. Hardhat Runner is the main component you interact with when using Hardhat. It's a flexible and extensible task runner that helps you manage and automate the recurring tasks inherent to developing smart contracts and dApps. Easily deploy your contracts, run tests and debug Solidity code without dealing with live environments. Hardhat Network is a local Ethereum network designed for development. Hardhat is the best choice for Solidity debugging. You get Solidity stack traces, console.log and explicit error messages when transactions fail. -
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Hyperledger Burrow
A permissioned Ethereum smart-contract blockchain node
Hyperledger Burrow is a permissioned Ethereum smart-contract blockchain node. It executes Ethereum EVM and WASM smart contract code (usually written in Solidity) on a permissioned virtual machine. Burrow provides transaction finality and high transaction throughput on a proof-of-stake Tendermint consensus engine. Burrow is a fully-fledged blockchain node and smart contract execution engine -- a distributed database that executes code. Burrow runs Ethereum Virtual Machine (EVM) and Web Assembly (WASM) smart contracts. Burrow networks are synchronized using the Tendermint consensus algorithm. A node can detect if its state is corrupted or if a validator is dishonestly executing the protocol. Run a private or public permissioned network. Stakeholders may vote for autonomous smart contract upgrades. Application state is organised in an event stream and can drive external systems. -
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Ethlint
(Formerly Solium) Code quality & Security Linter for Solidity
Ethlint (Formerly Solium) analyzes your Solidity code for style & security issues and fixes them. Standardize Smart Contract practices across your organization. Integrate with your build system. Deploy with confidence! Solium does not strictly follow Solidity Style Guide. The practices it enforces by default are best practices for the community at large. If you’re using vim with syntastic, and prefer to use a locally installed version of Solium (rather than a global version), you can install syntastic local solium to automatically load the local version in packages that have installed their own. Solium does not strictly adhere to Solidity Style Guide. It aims to promote coding practices agreed upon by the community at large. You can specify rules or plugins to apply as command line options. If you specify one, it overrides its corresponding configuration in the soliumrc file. -
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Protocol Labs - Retriev
Home of Retriev protocol (by CryptoNet + YOMI)
Retriev is a Protocol designed by CryptoNetLab and developed by YOMI that allows end users to create retrieval deals with a subset of IPFS providers. It leverages a reliable system of “missed retrieval” penalties that increases confidence in decentralized storage networks. If you want to go deeper on how the protocol works please read our light paper. -
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Raiden Network
Raiden Network
Use Raiden to enrich your dApp with nearly instant, low-fee and scalable payments. It comes with an easy-to-use API and is compatible with the Ethereum ERC20 token standard. Incentivized, decentralized P2P live streaming with micropayments using Raiden, introducing “Proof-of-Stream-Payment”. The Raiden Network is an infrastructure layer on top of the Ethereum Blockchain. While the basic idea is simple, the underlying protocol is quite complex and the implementation non-trivial. Nonetheless the technicalities can be abstracted away, such that developers can interface with a rather simple API to build scalable decentralized applications based on the Raiden Network. The Raiden Network is an off-chain scaling solution, enabling near-instant, low-fee and scalable payments. It's complementary to the Ethereum Blockchain and works with any ERC20 compatible token. The Raiden project is work in progress. -
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superfluid protocol-monorepo
Superfluid protocol specification, implementations and development kit
Superfluid is an asset streaming protocol that brings subscriptions, salaries and rewards to DAOs and crypto-native businesses. Settle employees and contributors compensation once and for all, without frictions or fees. Your tokens flow in a continuous stream to recipients, until you edit their compensation or choose to stop it. Create, modify or close streams in a single interface, even if the stream was started on other applications. The Superfluid Protocol is a framework that realizes the real-time finance vision where user accounts are connected together, and transactions can happen between user accounts instantaneously as a result. This repository implements the superfluid protocol as Ethereum contracts. It also contains a Javascript SDK for developing Web3 applications using the superfluid protocol. -
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Token Airdrop
Create Your Token Airdrop and Collect Fees
Create Your Token Airdrop and Collect Some Money, Increase your token holders by distributing small amount from your token to 1000's of holders, also you can collect fees. Follow this steps: 1- create airdrop contract: https://0xfactory.com/airdrop-contract 2- choose your preferred theme : https://0xfactory.com/airdrop-ui Demo: https://airdrop-ai.demo.0xfactory.com 3- edit the file "data.json" using any text editor and save 4- upload all the files to your hosting That is all.... Good luck -
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Petoron (PTRN) it’s a fixed-supply ERC-20 cryptocurrency built to support the open-source Petoron cryptography ecosystem. Contract Details: - Ethereum Mainnet - Contract: 0xCe675D637bB5E3aDAFDC4d1e475a35D75F6D95bc - Total supply: 20,000,000 PTRN - Treasury: 0x31187017dC243d4D46126bB5a160Bb98FFeef39b Petoron is an entire cryptography ecosystem developed to give people real tools for privacy and data protection: - 🔐 PTBC — Petoron Time Burn Cipher (time-based self-destructing encryption) - 📜 PSC — Petoron Seal Contracts (tamper-proof sealed data) - 📦 PCA — Petoron Crypto Archiver (secure archiving) - 🧹 PLD — Petoron Local Destroyer (irreversible deletion) - ⚛️ PQS — Petoron Quantum Standard (quantum-resistant encryption) - 💬 P2P Messenger — fully encrypted peer-to-peer communication https://github.com/01alekseev/-PTRN--Petoron--token
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ETHEReact
A decentralized e-commerce platform!
ETHEReact is a full stack DApp; demonstrating e-commerce capabilities without any database powering the backend but the EVM standing tall! This is not a product in itself but the idea for aspiring blockchain enthusiasts to uncover the potential; end-to-end! This app is comprised of Truffle powered testrpc (which is also called ganache) facilitating local development.& Web3 bridges Ethereum to ReactJS! -
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Smart Contract Sanctuary
A home for ethereum smart contracts
A home for Ethereum smart contracts verified on Etherscan. This is the index repository for the smart contract sanctuary. Bookmark this repo. Chain-specific sub-repos and the index are updated twice a day. Expect a full, recursive check-out to take 2GB+ disk space. Existing repository but submodules never initialized - checkout submodules and update all chain-specific sub repositories. Contains smart contract sources for various networks, grouped by the first two chars of the contract address. A scriptable semantic grep utility for solidity (crunch numbers, find specific contracts, extract data) Semgrep is a fast, open-source, static analysis tool for finding bugs and enforcing code standards at editor, commit, and CI time, and now supports Solidity! A powerful online code search service that can be used to search the sanctuary without cloning. -
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Synthetix
Synthetix Solidity smart contracts
Synthetix is a new financial primitive enabling the creation of synthetic assets, offering unique derivatives and exposure to real-world assets on the blockchain. Leveraging the Synthetix debt pool and our innovative liquidity framework, our traders are guaranteed to have some of the best price execution around, with little to no slippage and fills you can’t get elsewhere. Capture the price movements of popular cryptocurrencies, fiat currencies, stocks, commodities and more with zero slippage. Synthetic assets, or Synths, are assets voted into existence by the community and can come in the form of fiat currencies, cryptocurrencies, stocks, commodities and anything else with a price. Many platforms already leverage the deep liquidity and composability of Synthetix to deliver better trades with lower slippage, hedging, and other unique use cases. -
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Voodoo Token
P2P Decentralized Currency on PulseChain
Voodoo Token is a decentralized peer-to-peer meme coin built on the Pulsechain Blockchain. Some key features of Voodoo Token are: fast and cheap transactions, integrating into a gambling DApp, and it's used within DeFi.
