1250 Open source projects that are alternatives of or similar to Blockchain

A collection about awesome blockchains - open distributed public databases w/ crypto hashes incl. git ;-). Blockchains are the new tulips 🌷🌷🌷. Distributed is the new centralized.

Catena is a distributed database based on a blockchain, accessible using SQL.

Blockchain abstraction layer

Iroha - A simple, enterprise-grade decentralized ledger

SHA256 PL/SQL Implementation for Oracle 10g,11g.

Specifications for Interledger and related protocols

A permissioned implementation of Ethereum supporting data privacy

A new distributed web protocol for smart contracts and decentralized applications.

Simple and pure block explorer you can run on top of a full node

An e-voting system based on blockchain using ring signature

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

A distributed, transactional key-value store.

Enterprise-ready blockchain platform

node of the decentralized oracle network, bridging on and off-chain computation

Ledger Explorer for the Stellar Network 🚀

BandChain - Decentralized Data Delivery Network

An integrated development environment and SDK for Ethereum-like ledgers

Easily connect your applications to blockchains

JavaScript client for Exonum blockchain

Official Go implementation of the Vite protocol

Conceal Core - Daemon & Wallets (CLI)

Web-Scale Blockchain for fast, secure, scalable, decentralized apps and marketplaces.

An advanced Ethereum mobile wallet

Blockchain Books

Muta is a high-performance blockchain framework.

A Rust Bitcoin blockchain parser with clustering capabilities, allowing to group together addresses in ownership clusters. Please contact @mikispag if interested in using BitIodine for any real-world use case.

The Open Digital Innovation Marketplace

Distributed cache and in-memory key/value data store. It can be used both as an embedded Go library and as a language-independent service.

Rust implementation of Zcash protocol

👮🏻🛰 Ethereum identity proxy contract that bounces meta transactions of etherless accounts.

A curated list of previous asked Interview Question at Big Companies and Startups 🤲 🏆

An advanced Ethereum mobile wallet

Common PL/SQL utility scripts

Oracle Database & APEX Developer Docker Image

An IDE to develop smart contracts on the Conflux blockchain

EOS.io Kylin Testnet by cryptokylin.io

🥑 ArangoDB is a native multi-model database with flexible data models for documents, graphs, and key-values. Build high performance applications using a convenient SQL-like query language or JavaScript extensions.

Tessera - Enterprise Implementation of Quorum's transaction manager

A reliable, user-friendly Plain Text Accounting tool with command line, terminal and web interfaces.

Tools for building browser applications on Flow 🌊

Blockchain2graph extracts blockchain data (bitcoin) and insert them into a graph database (neo4j).

Spring Boot Starter for web3j

⚠️ ⚠️ ⚠️ Hyperledger Composer has been deprecated ⚠️ ⚠️ ⚠️

LinDB is a scalable, high performance, high availability distributed time series database.

Ulord is a P2P value transfer public blockchain. Through building its blockchain underlying architecture and digital resource distribution protocols, it enables third-party developers to explore their own applications over open-source agreements to form a complete ecology of blockchain technology and applications.

EKT basic blockchain, the main purpose are token transfers and token related smart contracts.

This repository demonstrates the eosio platform running a blockchain as a local single node test net with a simple DApp, NoteChain.

Full Bitcoin library for iOS, implemented on Swift. SPV wallet implementation for Bitcoin, Bitcoin Cash and Dash blockchains.

Fast. Scalable. Powerful. The Blockchain for Web 3.0

arcbit - iOS bitcoin wallet http://arcbit.io

📈Track token prices of your favorite exchanges in terminal!

The Elemental Battles Tutorial is divided into easy to follow lessons that take you through the process of creating your own fully-functional blockchain-based dApp.

通用区块链平台tendermint源码分析

Pure go oracle client

🛠️ A smart contract UI for your Ethereum dapp project

are we decentralized yet? an analysis of how truly decentralized cryptocurrency networks are

Yearn Vault smart contracts

An open-source Crypto-Currency exchange. Peatio v3.0 Coming Soon !

Smart Contracts for the Status Contribution Period, along with Genesis and Network Tokens

The Blockstack website