1950 Open source projects that are alternatives of or similar to Web3j

A ethereum wallet like imToken

Directory of security contacts for blockchain companies

📚 区块链上的纸质书交易平台，为未来而构建！

JS library for building browser apps & NodeJS services that interact with Loom DAppChains

Python implementation of QuarkChain

Enterprise-ready blockchain platform

Symbolic execution tool

Ethereum smart contract transaction input data decoder

Elegant Web3js functionality in Swift. Native ABI parsing and smart contract interactions.

Main uPort library for front end developers

The Flint Programming Language for Smart Contracts

Curated collection of blockchain & cryptocurrency resources.

Armors-solidity is a framework to build secure smart contracts on Ethereum.

Arc is an operating system for DAOs.

The nOS Client

Ethermint is a scalable and interoperable Ethereum, built on Proof-of-Stake with fast-finality using the Cosmos SDK.

Create an ERC20 Token for FREE in less than a minute with the most used Smart Contract Generator for ERC20 Token. No login. No setup. No coding required.

Ʉnlock is a protocol for memberships built on a blockchain.

The Pact Smart Contract Language

An enterprise-grade Java-based, Apache 2.0 licensed Ethereum client

My personal study of blockchain related technology.

Smart Contract Weakness Classification and Test Cases

0xcert Framework - JavaScript framework for building decentralized applications - build something unique

Fluent RxJava JDBC extension functions for Kotlin

A permissioned implementation of Ethereum supporting data privacy

Enzyme Protocol Implementation

Programming examples from the book.

Write once, run forever. Deploy robust, scalable, decentralized WebAssembly applications on Wavelet.

swarm docs

Source code for Eat The Blocks, a screencast for Ethereum Dapp Developers

Go language implementation of the original/classic design of the Ethereum protocol

EthereumKit is a free, open-source Swift framework for easily interacting with the Ethereum.

Official Go implementation of the IOST blockchain

An integrated development environment and SDK for Ethereum-like ledgers

Skycoin Core and Wallet

ExchangeSharp is a powerful, fast and easy to use .NET/C# API for interfacing with many crypto currency exchanges. REST and web sockets are supported.

Kelp is a free and open-source trading bot for the Stellar DEX and 100+ centralized exchanges

The Status module that consumes go-ethereum

a blockchain private key management library on android

The Decentralized Application Security Project

A portfolio tracking, analytics, accounting and tax reporting application that protects your privacy

Ethereum on Tendermint using Cosmos-SDK!

Introduce blockchain related technologies, from theory to practice with bitcoin, ethereum and hyperledger.

An awesome curated list of Cryptoeconomic research and learning materials

An explorer for ERC20 based Ethereum tokens

Cross-platform, cross-blockchain wallet library.

<블록체인의 정석>, <하이퍼레저 블록체인 개발> 소스코드 및 참고자료 저장소

A tool for creating a local blockchain for fast Ethereum development.

ARCHIVE. CODE MOVED TO:

Decentralized Social Media Overlay

Ethereum-Tendermint token sending gateway

Blockchain Manchester Meetups, Talks and Reading List

Smart Contracts and web app for district0x contribution

Security issues in Ethereum demonstrated in mocha tests. The fix is also demonstrated

Solidity, the Smart Contract Programming Language

Flow is a fast, secure, and developer-friendly blockchain built to support the next generation of games, apps, and the digital assets that power them 🌊

The ICO calendar to end all ICO calendars

Sample web3j project using Gradle

💠 Upgradeable-first Solidity smart contract development library 💠

Machine learning models for time series analysis