MetaFS is a metadata focused file system which has:

In essence the entire content of common file formats is analyzed and properly indexed, permitting instant flexible views of your data, making many third party programs absolete:

A "Proof of Concept" has been implemented for Linux (Ubuntu) providing a UNIX file system interface for test purposes.

  1. the current "Proof of Concept" implementation only the most significant 64 keys are indexed, but all metadata is searchable; MetaFS beta lifts this limit, release in 2016.