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22 best Java Blockchain libraries in 2025

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by meenakshi@openweaver.com dot icon Updated: Mar 15, 2023

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Java Blockchain Libraries Developing a blockchain in Java makes it portable across various devices because it uses plugin-architecture, which means it is possible to develop several blockchain-based components in parallel. Blockchain technologies are considered highly secure for the cryptocurrency universe because of their distributed ledger property. In the blockchain world, java is considered one of the best blockchain programming languages because of its reliable frameworks of Hyperledger Fabric and Web3j. In addition, the JIT and GC functionalities make the Java runtime environment highly time efficient, which is highly preferable for Java developers. Bitcoinj library allows the user to keep a Bitcoin wallet and a ledger of transactions that do not need a local copy. The bitcoin-wallet library is an exclusive code package meant for Android-based Bitcoin applications. The functionality to manage Hyperledger lifecycle is provided to the developer by the library fabric-sdk-java. Listed below are some interesting Java libraries for blockchain applications that provide handy code packages for ready implementation.

bitcoinjby bitcoinj

Java doticonstar image 4582 doticonVersion:v0.17-alpha1doticon
License: Permissive (Apache-2.0)

A library for working with Bitcoin

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            bitcoinjby bitcoinj

            Java doticon star image 4582 doticonVersion:v0.17-alpha1doticon License: Permissive (Apache-2.0)

            A library for working with Bitcoin
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                      web3jby web3j

                      Java doticonstar image 4656 doticonVersion:v4.10.0doticon
                      License: Others (Non-SPDX)

                      Lightweight Java and Android library for integration with Ethereum clients

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                                web3jby web3j

                                Java doticon star image 4656 doticonVersion:v4.10.0doticon License: Others (Non-SPDX)

                                Lightweight Java and Android library for integration with Ethereum clients
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                                          bitcoin-walletby bitcoin-wallet

                                          Java doticonstar image 3220 doticonVersion:v5.16doticon
                                          no licences License: No License (null)

                                          Bitcoin Wallet app for your Android device. Standalone Bitcoin node, no centralized backend required.

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                                                    bitcoin-walletby bitcoin-wallet

                                                    Java doticon star image 3220 doticonVersion:v5.16doticonno licences License: No License

                                                    Bitcoin Wallet app for your Android device. Standalone Bitcoin node, no centralized backend required.
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                                                              fabric-sdk-javaby hyperledger

                                                              Java doticonstar image 1094 doticonVersion:v2.2.21doticon
                                                              License: Permissive (Apache-2.0)

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                                                                        fabric-sdk-javaby hyperledger

                                                                        Java doticon star image 1094 doticonVersion:v2.2.21doticon License: Permissive (Apache-2.0)

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                                                                                  WeIdentityby WeBankFinTech

                                                                                  Java doticonstar image 989 doticonVersion:v1.8.1doticon
                                                                                  License: Weak Copyleft (LGPL-3.0)

                                                                                  基于区块链的符合W3C DID和Verifiable Credential规范的分布式身份解决方案

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                                                                                            WeIdentityby WeBankFinTech

                                                                                            Java doticon star image 989 doticonVersion:v1.8.1doticon License: Weak Copyleft (LGPL-3.0)

                                                                                            基于区块链的符合W3C DID和Verifiable Credential规范的分布式身份解决方案
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                                                                                                      token-core-androidby consenlabs

                                                                                                      Java doticonstar image 620 doticonVersion:Currentdoticon
                                                                                                      License: Permissive (Apache-2.0)

                                                                                                      a blockchain private key management library on android

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                                                                                                                token-core-androidby consenlabs

                                                                                                                Java doticon star image 620 doticonVersion:Currentdoticon License: Permissive (Apache-2.0)

                                                                                                                a blockchain private key management library on android
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                                                                                                                          WeEventby WeBankFinTech

                                                                                                                          Java doticonstar image 612 doticonVersion:v1.6.0doticon
                                                                                                                          License: Permissive (Apache-2.0)

                                                                                                                          Event-Driven Architecture Based on Blockchain.基于区块链的事件驱动架构

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                                                                                                                                    WeEventby WeBankFinTech

                                                                                                                                    Java doticon star image 612 doticonVersion:v1.6.0doticon License: Permissive (Apache-2.0)

                                                                                                                                    Event-Driven Architecture Based on Blockchain.基于区块链的事件驱动架构
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                                                                                                                                              thunderby blockchain

                                                                                                                                              Java doticonstar image 514 doticonVersion:v0.1.2-alphadoticon
                                                                                                                                              License: Strong Copyleft (AGPL-3.0)

                                                                                                                                              Off-Chain Bitcoin payments using smart contracts

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                                                                                                                                                        thunderby blockchain

                                                                                                                                                        Java doticon star image 514 doticonVersion:v0.1.2-alphadoticon License: Strong Copyleft (AGPL-3.0)

                                                                                                                                                        Off-Chain Bitcoin payments using smart contracts
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                                                                                                                                                                  presto-ethereumby xiaoyao1991

                                                                                                                                                                  Java doticonstar image 450 doticonVersion:Currentdoticon
                                                                                                                                                                  License: Permissive (Apache-2.0)

                                                                                                                                                                  Presto Ethereum Connector -- SQL on Ethereum

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                                                                                                                                                                            presto-ethereumby xiaoyao1991

                                                                                                                                                                            Java doticon star image 450 doticonVersion:Currentdoticon License: Permissive (Apache-2.0)

                                                                                                                                                                            Presto Ethereum Connector -- SQL on Ethereum
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                                                                                                                                                                                      fabric-net-serverby aberic

                                                                                                                                                                                      Java doticonstar image 426 doticonVersion:v0.2doticon
                                                                                                                                                                                      License: Permissive (Apache-2.0)

                                                                                                                                                                                      HyperLedger/Fabric Net Server

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                                                                                                                                                                                                fabric-net-serverby aberic

                                                                                                                                                                                                Java doticon star image 426 doticonVersion:v0.2doticon License: Permissive (Apache-2.0)

                                                                                                                                                                                                HyperLedger/Fabric Net Server
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                                                                                                                                                                                                          WeBASEby WeBankFinTech

                                                                                                                                                                                                          Java doticonstar image 408 doticonVersion:v1.5.1doticon
                                                                                                                                                                                                          License: Permissive (Apache-2.0)

                                                                                                                                                                                                          WeBank Blockchain Application Software Extension

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                                                                                                                                                                                                                    WeBASEby WeBankFinTech

                                                                                                                                                                                                                    Java doticon star image 408 doticonVersion:v1.5.1doticon License: Permissive (Apache-2.0)

                                                                                                                                                                                                                    WeBank Blockchain Application Software Extension
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                                                                                                                                                                                                                              waltzby wepay

                                                                                                                                                                                                                              Java doticonstar image 366 doticonVersion:0.12.1doticon
                                                                                                                                                                                                                              License: Permissive (Apache-2.0)

                                                                                                                                                                                                                              Waltz is a quorum-based distributed write-ahead log for replicating transactions

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                                                                                                                                                                                                                                        waltzby wepay

                                                                                                                                                                                                                                        Java doticon star image 366 doticonVersion:0.12.1doticon License: Permissive (Apache-2.0)

                                                                                                                                                                                                                                        Waltz is a quorum-based distributed write-ahead log for replicating transactions
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                                                                                                                                                                                                                                                  aionby aionnetwork

                                                                                                                                                                                                                                                  Java doticonstar image 337 doticonVersion:v1.6.2doticon
                                                                                                                                                                                                                                                  License: Permissive (MIT)

                                                                                                                                                                                                                                                  Aion Network - Java Implementation

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                                                                                                                                                                                                                                                            aionby aionnetwork

                                                                                                                                                                                                                                                            Java doticon star image 337 doticonVersion:v1.6.2doticon License: Permissive (MIT)

                                                                                                                                                                                                                                                            Aion Network - Java Implementation
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                                                                                                                                                                                                                                                                      blockchain-javaby longfeizheng

                                                                                                                                                                                                                                                                      Java doticonstar image 307 doticonVersion:Currentdoticon
                                                                                                                                                                                                                                                                      License: Permissive (Apache-2.0)

                                                                                                                                                                                                                                                                      🎉java简单实现区块链

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                                                                                                                                                                                                                                                                                blockchain-javaby longfeizheng

                                                                                                                                                                                                                                                                                Java doticon star image 307 doticonVersion:Currentdoticon License: Permissive (Apache-2.0)

                                                                                                                                                                                                                                                                                🎉java简单实现区块链
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                                                                                                                                                                                                                                                                                          eventeumby eventeum

                                                                                                                                                                                                                                                                                          Java doticonstar image 467 doticonVersion:v0.9.0doticon
                                                                                                                                                                                                                                                                                          License: Permissive (Apache-2.0)

                                                                                                                                                                                                                                                                                          A resilient Ethereum event listener that bridges your smart contract events and backend microservices

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                                                                                                                                                                                                                                                                                                    eventeumby eventeum

                                                                                                                                                                                                                                                                                                    Java doticon star image 467 doticonVersion:v0.9.0doticon License: Permissive (Apache-2.0)

                                                                                                                                                                                                                                                                                                    A resilient Ethereum event listener that bridges your smart contract events and backend microservices
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                                                                                                                                                                                                                                                                                                              NoobChain-Tutorial-Part-1by CryptoKass

                                                                                                                                                                                                                                                                                                              Java doticonstar image 302 doticonVersion:Currentdoticon
                                                                                                                                                                                                                                                                                                              License: Permissive (MIT)

                                                                                                                                                                                                                                                                                                              A Simple Java Blockchain for educational purposes.

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                                                                                                                                                                                                                                                                                                                        NoobChain-Tutorial-Part-1by CryptoKass

                                                                                                                                                                                                                                                                                                                        Java doticon star image 302 doticonVersion:Currentdoticon License: Permissive (MIT)

                                                                                                                                                                                                                                                                                                                        A Simple Java Blockchain for educational purposes.
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                                                                                                                                                                                                                                                                                                                                  naivechainby sunysen

                                                                                                                                                                                                                                                                                                                                  Java doticonstar image 263 doticonVersion:Currentdoticon
                                                                                                                                                                                                                                                                                                                                  no licences License: No License (null)

                                                                                                                                                                                                                                                                                                                                  a blockchain implementation in 200 lines of code.

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                                                                                                                                                                                                                                                                                                                                            naivechainby sunysen

                                                                                                                                                                                                                                                                                                                                            Java doticon star image 263 doticonVersion:Currentdoticonno licences License: No License

                                                                                                                                                                                                                                                                                                                                            a blockchain implementation in 200 lines of code.
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                                                                                                                                                                                                                                                                                                                                                      evt4jby everitoken

                                                                                                                                                                                                                                                                                                                                                      Java doticonstar image 248 doticonVersion:1.4.6doticon
                                                                                                                                                                                                                                                                                                                                                      License: Permissive (MIT)

                                                                                                                                                                                                                                                                                                                                                      Official Java SDK for everiToken public chain. https://www.everitoken.io

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                                                                                                                                                                                                                                                                                                                                                                evt4jby everitoken

                                                                                                                                                                                                                                                                                                                                                                Java doticon star image 248 doticonVersion:1.4.6doticon License: Permissive (MIT)

                                                                                                                                                                                                                                                                                                                                                                Official Java SDK for everiToken public chain. https://www.everitoken.io
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                                                                                                                                                                                                                                                                                                                                                                          blockchain-application-using-fabric-java-sdkby IBM

                                                                                                                                                                                                                                                                                                                                                                          Java doticonstar image 244 doticonVersion:Currentdoticon
                                                                                                                                                                                                                                                                                                                                                                          License: Permissive (Apache-2.0)

                                                                                                                                                                                                                                                                                                                                                                          Create and Deploy a Blockchain Network using Hyperledger Fabric SDK Java

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                                                                                                                                                                                                                                                                                                                                                                                    blockchain-application-using-fabric-java-sdkby IBM

                                                                                                                                                                                                                                                                                                                                                                                    Java doticon star image 244 doticonVersion:Currentdoticon License: Permissive (Apache-2.0)

                                                                                                                                                                                                                                                                                                                                                                                    Create and Deploy a Blockchain Network using Hyperledger Fabric SDK Java
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                                                                                                                                                                                                                                                                                                                                                                                              eventeumby ConsenSys

                                                                                                                                                                                                                                                                                                                                                                                              Java doticonstar image 239 doticonVersion:v0.9.0doticon
                                                                                                                                                                                                                                                                                                                                                                                              License: Permissive (Apache-2.0)

                                                                                                                                                                                                                                                                                                                                                                                              A resilient Ethereum event listener that bridges your smart contract events and backend microservices

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                                                                                                                                                                                                                                                                                                                                                                                                        eventeumby ConsenSys

                                                                                                                                                                                                                                                                                                                                                                                                        Java doticon star image 239 doticonVersion:v0.9.0doticon License: Permissive (Apache-2.0)

                                                                                                                                                                                                                                                                                                                                                                                                        A resilient Ethereum event listener that bridges your smart contract events and backend microservices
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                                                                                                                                                                                                                                                                                                                                                                                                                  quiltby hyperledger

                                                                                                                                                                                                                                                                                                                                                                                                                  Java doticonstar image 214 doticonVersion:v1.3.1doticon
                                                                                                                                                                                                                                                                                                                                                                                                                  License: Permissive (Apache-2.0)

                                                                                                                                                                                                                                                                                                                                                                                                                  Hyperledger Quilt - An implementation of the Interledger Protocol

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                                                                                                                                                                                                                                                                                                                                                                                                                            quiltby hyperledger

                                                                                                                                                                                                                                                                                                                                                                                                                            Java doticon star image 214 doticonVersion:v1.3.1doticon License: Permissive (Apache-2.0)

                                                                                                                                                                                                                                                                                                                                                                                                                            Hyperledger Quilt - An implementation of the Interledger Protocol
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                                                                                                                                                                                                                                                                                                                                                                                                                                      Blockchainby Will1229

                                                                                                                                                                                                                                                                                                                                                                                                                                      Java doticonstar image 286 doticonVersion:Currentdoticon
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                                                                                                                                                                                                                                                                                                                                                                                                                                      A simple implementation of blockchain in java

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                                                                                                                                                                                                                                                                                                                                                                                                                                                Blockchainby Will1229

                                                                                                                                                                                                                                                                                                                                                                                                                                                Java doticon star image 286 doticonVersion:Currentdoticon License: Permissive (Apache-2.0)

                                                                                                                                                                                                                                                                                                                                                                                                                                                A simple implementation of blockchain in java
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