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Title: Open source cloud file system. Posix, HDFS and S3 compatible
Site: juicefs.com

 Why JuiceFS 
 JuiceFS is designed to bring back the gold-old memories and experience of file systems in local disks to the cloud. 
 
 
 
 Familiar tool chain and  easier data access 
 JuiceFS is POSIX compliant and is fully compatible with HDFS and S3. Cloud app building or migrating, file sharing cross-geo and cross-cloud has become easier than ever before. 
 
 
 
 
 Designed for the cloud multi-cloud and cross-cloud 
 Whether it's public cloud, private cloud, or hybrid cloud, JuiceFS is available on any cloud of your choice and delivers the flexibility, availability, scalability and strong consistency for your data intensive applications. 
 
 
 
 
 Tens of billions of files  management made easier 
 Purposely built to serve big data scenarios such as self-driving model training, recommendation engine, Next-generation Gene Sequencing, JuiceFS specializes in high performance and easier management of tens of billion of files management.