allTags was developed to manage large file sets efficiently. Time-consuming actions, like naming files and choosing folders, are replaced by fast tagging operations.
With built-in support functions, allTags avoids inconsistencies and speeds up file description and retrieval. allTags is 100% free to use.
DiskCatalogMaker - Simple, smart and fast disc management tool.
TagSpaces - TagSpaces is an open source platform for personal data management. With TagSpaces you can manage and organize the files on your laptop, tablet or smart phone.
abeMeda - abeMeda is a powerful and very fast disk cataloging tool, reading metadata like EXIF, IPTC, JPG, TIFF, MP3, AAC (iTunes)
TMSU - TMSU is a tool for tagging your files.
Virtual Volumes View - VVV uses a relational database to store its data.
Tabbles - Tabbles use tags to organize and find files along with your colleagues.