Web3 Labs · Web3 Blockchain · Family web3j
Java and Android library for Ethereum blockchain interaction. Handles wallet creation, transaction signing, and smart contract calls. Lightweight enough for Android apps needing basic Web3 functionality.
Last analyzed
Every app FlyTrap has analyzed where Web3j was detected at runtime or via static analysis.
Common questions about the Web3j SDK.
Java and Android library for Ethereum blockchain interaction. Handles wallet creation, transaction signing, and smart contract calls. Lightweight enough for Android apps needing basic Web3 functionality.
Web3j is published by Web3 Labs. See every Web3 Labs SDK and adoption stats on the vendor profile.
8 apps in the FlyTrap catalog ship Web3j, including Binance: Buy Bitcoin & Crypto, Gate: Trade BTC & ETH and MAPS.ME: Offline maps GPS Nav. The complete list is on this page.
FlyTrap classifies Web3j under Web3 Blockchain.
FlyTrap looks for Web3j's fingerprints in the app binary, such as known package names, classes, and bundled libraries, across native, React Native, and Flutter builds. No SDK or source access is required.