48 best Java Cryptocurrency libraries in 2024

Java Cryptocurrency libraries work with the Bitcoin protocol to maintain a wallet. They send/receive cryptocurrency transactions without storing a local copy.

One such library is bitcoinj. These open-source libraries have many advanced features implemented in Java and can be used by any JVM-compatible programming language, like Python. With these libraries, you can create components for building Bitcoin, Ethereum, Altcoin, Litecoin, and other such popular crypotocurrencies. You can also create and maintain the bitcoin wallet, integrate with popular crypto-exchanges, enable automated trading, and so on. You can use these to incorporate blockchain into a Java project, create wallets, and manage transactions between nodes, often without having to write your own integration code.

Below is our list of the 48 best Java cryptocurrency libraries that are open-source in 2021. XChange is a Java library of streamlined APIs for interaction with more than 60 Bitcoin and Altcoin exchanges. It has an MIT license and modular components with minimal dependency on third-party applications. Another library, bitcoin-wallet, is a wallet app for your Android device that works as a standalone Bitcoin payment platform with no centralized backend requirement. With this, you can integrate Bitcoin payments into your Android app. On the other hand, Best is an Apache 2.0 licensed enterprise-grade Ethereum client that is Java-based and MainNet compatible. Depending on your requirements, you can choose any of these open-source libraries for your project.

bitcoinj:  

• It is a Java library for working with the Bitcoin protocol.  
• This library provides functionality for creating and managing Bitcoin wallets.  
• It is a lightweight library. This makes it suitable for applications with resource constraints.

bisq:   

• It is a Java library used in Security, Cryptography, and Bitcoin applications.  
• It is a decentralized, open-source cryptocurrency exchange platform.  
• It allows users to trade various cryptocurrencies in a pop manner. It does not need central authority.

web3j:  

• Web3j is a Java library for working with the Ethereum blockchain.  
• It enables developers familiar with Java to take part in blockchain development.   
• It helps developers build secure and reliable apps. This handles the intricacies of blockchain interactions.

XChange:  

• Used in Financial Services, Fintech, Security, Cryptography, Ethereum, Bitcoin applications.  
• It provides a consistent API for interacting with a diverse set of exchanges.  
• It is crucial for facilitating exchanges, handling market data, and executing trading strategies.

bitcoin-wallet:  

• A Bitcoin wallet is crucial for managing and securing users' Bitcoin holdings.  
• The wallet stores private keys, allowing users to control and access their Bitcoin.  
• It generates and manages Bitcoin addresses for receiving payments.

BitHub:  

• BitHub is a Java Cryptocurrency library.  
• Used in Blockchain Bitcoin applications.  
• The BTC and BitHub are experiments in funding privacy OSS.

exchange-core:  

• It refers to the core functionality responsible for handling cryptocurrency exchange-related operations.  
• The exchange-core handles executing buy and sell orders on the cryptocurrency market.  
• It implements the logic for matching buy and sell orders. It is a fundamental aspect of any exchange.

besu:  

• It is compatible with the Ethereum protocol.  
• It facilitates the execution of smart contracts on the Ethereum Virtual Machine (EVM).  
• It supports interoperability between different blockchain networks.

subzero:  

• subzero is a Java library used in Security, Cryptography, Ethereum, Bitcoin applications.  
• It refers to a specific library feature, module, or concept.  
• It is Block's Bitcoin Cold Storage solution.

bxbot:  

• It is a Java library used in Blockchain, Cryptocurrency, Bitcoin applications.  
• It is a simple Bitcoin trading bot in Java for trading on cryptocurrency exchanges.  
• It addresses the needs of developers working with cryptocurrency-related tasks in Java.

wallet-android:  

• wallet-android in a Java cryptocurrency library. It refers to a component responsible for managing cryptocurrency wallets on Android devices.  
• It provides an interface for managing digital assets on a mobile platform.  
• It facilitates the creation, signing, and broadcasting of transactions on the Blockchain.

CoinExchange_CryptoExchange_Java:  

• CoinExchange_CryptoExchange_Java is a Java Cryptocurrency library.  
• It helps in Security, Cryptography, and Bitcoin applications.  
• It is the best Java open-source cryptocurrency exchange platform.

samourai-wallet-android:  

• samourai-wallet-android is a Java Cryptocurrency library.  
• It helps with Networking, Router, and Bitcoin applications.  
• It is a Bitcoin Wallet focused on privacy when transacting on the Bitcoin network.

DiabloMiner:  

• It is a Java-based open-source mining software.   
• It mines cryptocurrencies using the OpenCL framework.  
• It provides the necessary functions for mining cryptocurrencies.

thunder:  

• thunder is a Java library used in Blockchain, Ethereum, Bitcoin applications.  
• Wallet / Node implementation of the lightning.network P2P protocol.  
• The lightning.network enables Off-Chain Bitcoin Payment Channels using smart contracts.

presto-ethereum:  

• It is a Java library used in Big Data, Ethereum, and Oracle applications.  
• Presto is a powerful interactive querying engine that enables running SQL queries.  
• Ethereum blockchain analytics works without knowing how to play with JS API.

multibit:  

• multibit is a Java library used in Blockchain, Cryptocurrency, and Bitcoin applications.  
• This can be crucial for precision in financial transactions. It ensures accurate and flexible handling of various amounts.  
• Multibit support allows for more granular control over the transacted cryptocurrency amounts.

xchange-stream:  

• xchange-stream is a Java library used in Networking, Websocket, Bitcoin applications.  
• It provides a simple and consistent streaming API for interacting with Bitcoin.  
• It interacts with Bitcoin and other cryptocurrency exchanges.

bither-android:  

• bither-android is a Java Cryptocurrency library.  
• It helps with Blockchain, Cryptocurrency, Ethereum, Bitcoin, and Electron applications.  
• Bither is a secure Bitcoin wallet.

Upchain-wallet:  

• Upchain-wallet is a JavaScript Cryptocurrency library.  
• It helps with Blockchain, Cryptocurrency, and Ethereum applications.  
• It is a powerful Ethereum Android Wallet & DApp Browser.

teku:  

• teku is a Java Cryptocurrency library.  
• It helps with Blockchain and Ethereum applications.  
• It is a Java implementation of the Ethereum 2.0 Beacon Chain.

nuls:  

• It provides a modular architecture. It can be beneficial for developers building blockchain apps in Java.  
• It emphasizes interoperability, enabling communication and interaction between different blockchains.  
• It supports many consensus mechanisms, including PoC and PoS.

ta4j-origins:  

• ta4j-origins are a Java Cryptocurrency library.  
• It helps with Blockchain, Cryptocurrency, Ethereum, and Bitcoin applications.  
• It is a Java library for technical analysis.

cointrader:  

• It is a Java library used in Blockchain and cryptocurrency applications.  
• Coin Trader is a Java-based backend for trading cryptocurrencies. 
• It provides complex event processing and triggering, data collection & export, and backtesting.

Lunary-Ethereum-Wallet:  

• It helps with Blockchain, Cryptocurrency, Ethereum, and Bitcoin applications.  
• It is a designed, easy-to-use, secure, and open-source Ethereum Wallet for Android.  
• It provides developers with tools to integrate Ethereum functionality into their apps.

donations:  

• Donations in a Java cryptocurrency library. It helps in sustaining the development and maintenance of the library.  
• It can also foster a sense of community engagement. It encourages developers to contribute and collaborate.  
• It enables developers to deliver a robust and up-to-date tool for users.

alpha-wallet-android:  

• It provides an interface for users to manage their cryptocurrency wallets.  
• It facilitates the creation and signing of transactions.  
• It likely adheres to industry standards and Ethereum Improvement Proposals (EIPs).

BitcoinChecker:  

• It is a Java library used in Blockchain, Cryptocurrency, and Bitcoin applications.  
• It is a library, or a tool designed for checking Bitcoin-related information.  
• It allows developers to access real-time market data and check app transaction status.

lighthouse:  

• lighthouse refers to a beacon or a reference point for developers.  
• It helps maintain consistency in coding standards and design patterns across the library.  
• By establishing a lighthouse, the library encourages community collaboration.

eventeum:  

• It is a Java library used in Blockchain, Cryptocurrency, Ethereum, and Prometheus applications.  
• An Ethereum event listener that bridges your smart contract events and backend microservices.  
• its importance in a Java cryptocurrency context would likely revolve around event handling.

huobi_Java:  

• It is a Java library used in Web Services, REST applications.  
• It is a Java SDK for Huobi Spot API.  
• It might offer functionalities like accessing market data and placing trades.

bitcoin-android:  

• It provides functionality for working with Bitcoin transactions and blockchain-related tasks on apps.  
• Its importance lies in enabling developers to integrate Bitcoin functionality into Android apps.  
• It allows sending and receiving Bitcoin & check balances. Also, it performs other cryptocurrency-related operations.

ETHWallet:  

• An ETHWallet in a Java cryptocurrency library is important for managing Ethereum wallets.  
• It allows you to generate, import, and manage Ethereum addresses. Also allows us to generate public keys, and private keys.  
• It secures and controls access to Ethereum assets within a Java application.

multibit-hd:  

• It is a Java library used in Blockchain, Cryptocurrency, Bitcoin applications.  
• It was a Bitcoin wallet that aimed to enhance security and usability features.  
• It Supports external hardware wallets available through the MultiBit Hardware project.

bitcoin-transaction-explorer:  

• It provides a way to interact with the Bitcoin blockchain.
• It enables the exploration of address-related information.   
• It allows developers to retrieve information about transactions, addresses, and blocks.

blockchain-java:  

• It provides a decentralized and secure method for managing transactions.   
• It ensures transparency and immutability of the transaction history.  
• It enables programmable and automated execution of predefined rules within the blockchain network.

status-keycard:  

• status-keycard is a Java library used in Web Site, Ecommerce, Ethereum, and Bitcoin apps.  
• Keycard is an implementation of a BIP-32 HD wallet running on Javacard 3.0.4.  
• It supports both NFC and ISO7816 physical interfaces. It is compatible with any Android phone equipped with NFC and all USB Smartcard readers.

mercury:  

• mercury is a Java Cryptocurrency library.   
• It helps with Security, Cryptography, Ethereum, and Bitcoin applications.  
• It is a decentralized cryptocurrency exchange.

react-native-geth:  

• It is a package for React Native. It allows developers to integrate this library into their React Native apps.
• It is a popular implementation of the Ethereum protocol.  
• It allows developers to access functionalities such as creating wallets and sending transactions.

web3j-spring-boot-starter:  

• It is a Java library used in Security, Spring Boot, and Spring applications.  
• It is significant for integrating Web3j. It is a Java library for working with Ethereum in Spring Boot applications.  
• It simplifies the configuration and setup process. This makes it easier to interact with the Ethereum blockchain through Spring Boot.

erc20-rest-service:  

• It helps with Blockchain, Cryptocurrency, Ethereum, Spring Boot, Spring, JPA applications.  
• It provides a RESTful API for interacting with ERC-20 tokens.  
• It is an ERC-20 token standard RESTful service using Spring Boot and web3j.

okcoin-client:  

• okcoin-client is a Java cryptocurrency library.  
• It is a Java library used in Blockchain, Cryptocurrency, Bitcoin applications.  
• It acts as a OKCoin API Wrapper in Java.

erc20-rest-service:  

• erc20-rest-service is a Java Cryptocurrency library.  
• It helps with Blockchain, Cryptocurrency, Ethereum, Spring Boot, Spring, JPA applications.  
• It is an ERC-20 token standard RESTful service using Spring Boot and web3j.

teku:  

• It is a Java library used in Blockchain, and Ethereum applications.  
• It is a Java implementation of the Ethereum 2.0 Beacon Chain.  
• It is changing; hence the recommended building from the latest master.

BitcoinVisualizer:  

• It is a Java library used in Blockchain, Ethereum, and Bitcoin applications.  
• It helps users understand the flow of transactions on Blockchain. This makes it easier to track and analyze.  
• It can provide insights into trends, volatility, and potential trading opportunities.

iota-java:  

• It allows developers to interact with the IOTA Tangle. It is the underlying data structure of the IOTA cryptocurrency.  
• Developers can harness the benefits of the IOTA network within their Java projects.  
• It provides a convenient way for developers to integrate IOTA into their apps.

api-v1-client-java:  

• It refers to a client library. It interacts with a specific version (v1) of a cryptocurrency exchange's API.  
• It enforces a consistent structure for interacting with the exchange's API.  
• It abstracts away low-level details. It provides a more straightforward interface for developers to work with.

abcore:  

• It is a Java library used in Blockchain, Cryptocurrency, Bitcoin applications.  
• It is an Android app that fetches Bitcoin core daemon built for Android using NDK.  
• It makes it easier to run the Bitcoin Core daemon node on Android set-top box devices.

FAQ 

1: What is a Java cryptocurrency library?  

A Java cryptocurrency library is a set of tools, functions, and classes written in Java. It eases the integration of cryptocurrency-related functionalities into Java applications.  

2: Which cryptocurrencies does the Java library support?  

The supported cryptocurrencies depend on the specific library. Ensure that the library supports the cryptocurrencies you intend to work with. Those libraries are Bitcoin, Ethereum, and others.  

3: How do I integrate the Java cryptocurrency library into my project?  

This integration involves adding the library to your project's dependencies. Refer to the library documentation for detailed instructions on integration.  

4: Is the library compatible with blockchain protocols?  

Yes, most Java cryptocurrency libraries interact with specific blockchain protocols. It ensures compatibility with the Blockchain you plan to work on. The Blockchain is like Bitcoin's Blockchain or Ethereum's network.  

5: Does the library handle wallet functionalities?  

Many Java cryptocurrency libraries provide features for wallet management. It includes key generation, transaction signing, and balance inquiry. Check the documentation for details.