web3j

Lightweight Java and Android library for integration with Ethereum clients.

What is web3j?

Web3j enables developers to engage with Ethereum blockchains, without the additional work of having to create their own integration code for the platform. It is a lightweight, highly modular, reactive, type-safe Java and Android library for writing Smart Contracts and integrating them with Ethereum blockchains.

web3j Alternatives:

ethers.js

A compact JavaScript library with full functionality for interacting with the Ethereum blockchain.

Etherspot TransactionKit

TransactionKit is the world's first React library for fast and simple Web3 development.

light.js

A high-level reactive JS library optimized for light clients.

Web3.py

Web3.py is a Python library for interacting with Ethereum.

web3.js

A TypeScript/JavaScript library used to let DApps interact with the Ethereum blockchain.