Hyperledger Fabric vs BigchainDB: What are the differences?
What is Hyperledger Fabric? An open source initiative to advance blockchain technology. It is a collaborative effort created to advance blockchain technology by identifying and addressing important features and currently missing requirements. It leverages container technology to host smart contracts called “chaincode” that comprise the application logic of the system.
What is BigchainDB? A database with blockchain characteristics. It is designed to merge the best of two worlds: the “traditional” distributed database world and the “traditional” blockchain world. With high throughput, low latency, powerful query functionality, decentralized control, immutable data storage and built-in asset support.
Hyperledger Fabric and BigchainDB can be primarily classified as "Blockchain" tools.
Hyperledger Fabric is an open source tool with 8.73K GitHub stars and 4.97K GitHub forks. Here's a link to Hyperledger Fabric's open source repository on GitHub.