Open-source alternatives to MystenLabs Sui

Remix is a comprehensive blockchain development environment and Ethereum smart contract IDE. It provides a complete workspace for writing, compiling, deploying, and debugging smart contracts across simulated and public blockchain networks. The project distinguishes itself as a specialized toolchain for EVM debugging and analysis, offering opcode-level transaction stepping and state memory analysis. It also includes a dedicated zero-knowledge proof toolchain for compiling ZK circuits and generating cryptographic proofs, alongside an AI-powered coding assistant for code generation and explanati

Hardhat is a smart contract development framework and EVM tooling suite designed for the full lifecycle of Ethereum and EVM-compatible applications. It serves as a development environment for compiling, testing, and deploying smart contracts, providing a local blockchain simulation and a programmable task runner. The framework is distinguished by its extensive simulation capabilities, including the ability to fork remote network state and manipulate block time or account balances. It features a hook-based plugin system that allows for the extension of core functionality and the creation of cu

Foundry is an Ethereum smart contract development toolkit and blockchain simulator designed for compiling, testing, and deploying contracts for the Ethereum Virtual Machine. It provides a local environment for simulating blockchain state and forking live networks to execute code without modifying the actual chain. The project features a property-based fuzzing engine to identify edge-case failures in contract logic and a transaction debugger for analyzing detailed execution traces and gas consumption. It enables developers to mirror the state of a remote chain locally to test against real-worl

Geth is a comprehensive execution client for the Ethereum network, serving as a foundational node implementation that processes transactions, maintains the distributed ledger state, and participates in peer-to-peer consensus. It provides a robust infrastructure for synchronizing, validating, and serving blockchain data, utilizing a persistent Merkle Patricia Trie database to ensure the cryptographic integrity of historical records. As a sandboxed smart contract runtime, it executes bytecode according to deterministic protocol rules, enabling the deployment and interaction of decentralized appl

web3.js is a comprehensive TypeScript library designed to facilitate interaction with Ethereum-compatible blockchain networks. It serves as a foundational toolkit for decentralized applications, providing the necessary interfaces to query network state, manage cryptographic identities, and execute smart contract transactions. By abstracting the complexities of blockchain communication, the library enables developers to integrate decentralized logic directly into their applications. The library distinguishes itself through a modular architecture that prioritizes extensibility and flexible conn

Anchor is a framework for building, testing, and deploying Solana smart contracts. It provides a Rust domain-specific language (DSL) that uses macro‑based instruction dispatch and derive‑macro account validation to automate ownership checks, discriminator enforcement, and serialization before instruction execution. The framework also includes a CLI toolchain for scaffolding, compiling, and managing contracts across workspaces, a test harness that simulates program execution with account manipulation and compute unit benchmarking, and an IDL generator that emits a standardized JSON interface fr

go-ibax is a blockchain protocol platform and decentralized application infrastructure used to deploy networks with custom governance and token economics. It provides a foundation for building decentralized applications through a framework that integrates identity management and on-chain data storage. The project features a multilingual virtual machine capable of executing smart contracts written in Go, Rust, and Solidity. It implements a sharded blockchain network to increase throughput and a privacy layer utilizing zero-knowledge proofs and homomorphic encryption to anonymize transaction da

Sway is a smart contract development language and programming environment designed for writing, compiling, and deploying secure blockchain programs. It serves as a type-safe language for building on-chain logic and a static analysis toolchain that validates contracts before they are executed on a network. The ecosystem provides a development environment focused on blockchain application logic and web3 backend engineering. It integrates a type-safe programming approach to reduce vulnerabilities and ensure reliable state transitions for decentralized services. The toolchain incorporates static

This project is a full-stack implementation of the TON protocol, serving as a layer 1 blockchain protocol designed for transaction processing and smart contract execution. It encompasses the core blockchain validator node, storage daemons, and network logic required to maintain a distributed ledger. The system is distinguished by a sharding architecture and a specialized virtual machine for deploying asynchronous smart contracts. It utilizes a cell-based data storage model for deterministic serialization and an actor-based asynchronous message passing system for communication between contract

Truffle is a development framework designed for the end-to-end lifecycle management of decentralized applications on the Ethereum blockchain. It provides a unified environment for developers to write, compile, test, and deploy smart contracts, serving as a comprehensive suite for managing the entire development process from initial code to network publication. The framework utilizes a command-line interface to automate core tasks, including the transformation of high-level source code into executable bytecode and the orchestration of contract deployments. By integrating a local virtual machin

This project is a Rust SDK and client library for the Fuel blockchain. It serves as a smart contract development kit used to compile, deploy, and test blockchain contracts in both local and remote environments. The library includes a binding generator that creates type-safe Rust code from contract methods, ensuring compile-time safety for blockchain function calls. It also provides a local sandbox runtime to launch network nodes and simulate wallet activity for decentralized application testing. The toolset covers blockchain wallet management, transaction signing, and state querying through

Scaffold-eth is a comprehensive development stack and boilerplate for building decentralized applications. It provides a pre-configured starter kit that integrates smart contract development tools with a reactive user interface to accelerate the construction of Ethereum-based projects. The toolkit features dynamic frontend interface generation, which automatically builds a user interface mapped to smart contract functions for rapid logic verification. This allows for testing blockchain logic through a frontend without the need to write custom UI code. The project covers a broad range of deve

This project is a comprehensive educational guide and technical manual for the Ethereum blockchain. It provides structured instruction on blockchain fundamentals, smart contract development, and the architectural principles of decentralized applications. The resource covers technical domains including smart contract security auditing, network administration, and web3 programming. It details the implementation of token standards, the use of mnemonic seeds for wallet integration, and the creation of censorship-resistant application architectures. The documentation extends to system-level opera

fuels-ts is a TypeScript SDK and development toolkit for the Fuel blockchain. It provides a library for executing transactions and querying blockchain state, alongside a set of utilities for smart contract development and deployment. The toolkit includes a local blockchain node runner that supports hot-reloading to enable rapid testing and iteration. It further distinguishes itself by generating type-safe TypeScript definitions from smart contract specifications to ensure compile-time validation of function calls. The project covers a broad range of capabilities including wallet derivation u

This is an educational resource that provides a comprehensive guide to blockchain and distributed ledger technologies, covering everything from fundamental concepts to practical deployment. The guide systematically explains the core architecture of blockchain systems, including consensus-based distributed ledgers, cryptographic hash chains, Merkle trees, and smart contract execution engines, while also detailing permissioned channel architectures and modular service platforms for enterprise use. The resource distinguishes itself by offering a dual-track learning path that serves both non-tech

The solana-program-library is a blockchain system program suite providing a library of core blockchain operations and native functions implemented as reusable programs on Solana. It serves as a collection of smart contract templates and reference implementations for deploying verified programs to the Solana virtual machine. The project provides decentralized application infrastructure by offering standardized programs that act as foundational building blocks for applications. It focuses on the development and deployment of verified blockchain contracts to ensure consistent functionality acros

Erigon is an Ethereum execution client and blockchain archive node designed to maintain full or archive copies of the blockchain. It functions as a Proof-of-Stake validator, an Ethereum RPC server, and a network validator operation tool, providing the core infrastructure to validate blocks and secure the chain. The project distinguishes itself through high-performance storage and data distribution, utilizing a flat key-value state storage system instead of a Merkle Patricia Trie to increase read and write speeds. It employs BitTorrent-based data distribution for immutable historical blockchai

rippled is a peer-to-peer node implementation for the XRP Ledger. It serves as a distributed ledger consensus engine and a blockchain API gateway, allowing servers to validate transactions and maintain a shared, immutable sequence of ledger state. The project features a built-in decentralized exchange engine capable of executing atomic cross-currency payments and managing order books. It includes an on-chain asset management system for issuing and controlling fungible tokens and NFTs, as well as a Byzantine Fault Tolerant system for coordinating validators. The platform provides comprehensiv

EOS is a Layer 1 blockchain infrastructure and high-throughput transaction engine. It serves as a WebAssembly smart contract platform that manages state transitions and network consensus across a peer-to-peer network. The system utilizes a sandboxed virtual machine for executing smart contract logic and employs a Byzantine Fault Tolerant delegated proof-of-stake consensus mechanism to finalize the global ledger state. It features a resource-based stake model for CPU and memory allocation and an asynchronous messaging system for inter-contract communication to prevent recursive call overflows.

This project is a blockchain development course and framework designed to teach the creation of decentralized applications and smart contracts. It provides a structural guide and development kit for building software that interacts with distributed ledger technology and peer-to-peer storage. The project covers the implementation of consortium blockchains for enterprise settings, where shared ledgers are managed between trusted organizations. It also includes methodologies for orchestrating private blockchains and simulating local nodes for testing applications. The capability surface extends

This library provides a server-side implementation for the WebAuthn standard, enabling developers to integrate FIDO2-compliant authentication into applications. It functions as a toolkit for managing public-key infrastructure, allowing systems to verify user identity through hardware-backed cryptographic signatures rather than traditional passwords. The framework facilitates the entire credential lifecycle, from the initial registration of security keys and biometric devices to the ongoing validation of authentication attempts. It handles the generation and verification of challenge-response

Chainlink is a decentralized oracle network that connects smart contracts to off-chain data, computation, and real-world systems. It provides a secure and reliable infrastructure for blockchain applications to access external information, execute automated workflows, and interact with other blockchains. The network is secured by a staking-based model where node operators lock LINK tokens as collateral, which can be slashed for poor performance, incentivizing honest and accurate data delivery. The platform distinguishes itself through a comprehensive set of capabilities that extend beyond basi

This project is a high-level programming language and compiler toolchain designed for writing and deploying smart contracts on decentralized virtual machines. It provides a framework for creating self-executing code that operates within deterministic execution environments, ensuring that distributed nodes reach identical state transitions through stack-based machine execution. The language enables the development of complex decentralized logic by supporting state-machine-based contract structures and modular composition. It includes built-in capabilities for cryptographic signature verificati

Vyper is a security-focused, typed programming language and compiler designed for creating smart contracts that execute on the Ethereum Virtual Machine. It utilizes a Pythonic syntax to define contract logic and state, serving as a target for formal verification to allow for machine-checked proofs of correctness. The language distinguishes itself through strict architectural constraints that prioritize predictability and security. It enforces acyclic call graphs by prohibiting recursion and mandates bounded loops to ensure static gas prediction. Additionally, it features a native fixed-point

This project is a comprehensive educational curriculum for developing, deploying, and testing blockchain applications using the Solidity language. It serves as a technical resource for building decentralized applications on Ethereum and compatible networks using Python-based tools. The curriculum provides practical guides on creating fungible and non-fungible tokens that follow industry-standard specifications for interoperability. It includes a DeFi programming curriculum for interacting with decentralized finance protocols to manage collateral, as well as instructions for importing real-wor

This repository is a comprehensive educational curriculum and programming guide designed to teach Solidity development and smart contract testing. It provides a structured set of instructional materials and tutorials for writing, deploying, and auditing secure programmable contracts on the Ethereum Virtual Machine. The course focuses on the Foundry toolkit, providing an Ethereum tooling curriculum that covers compiling and testing smart contracts locally. It emphasizes a professional development workflow, moving from initial Solidity programming to the implementation of decentralized applicat

This project is a comprehensive educational curriculum designed to teach developers how to build, test, and deploy decentralized applications and smart contracts on Ethereum-compatible networks. It serves as a structured technical guide for mastering programmable logic, decentralized finance protocols, and the architecture required to create secure distributed systems. The course distinguishes itself by focusing on the integration of blockchain smart contracts with web frontends, enabling the creation of interactive applications that allow users to read and write data directly from distribute