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.
X1 Search - X1's Lightning-Fast Search Software. Premium Alternative to Windows Desktop and Outlook Search.
Tabbles - Tabbles use tags to organize and find files along with your colleagues.
Everything by Voidtools - Everything. Locate files and folders by name instantly. Everything. Small installation file. Clean and simple user interface.
allTags - allTags is a free, tag based file management application.
Agent Ransack - Agent Ransack is a tool for finding files and information on your hard drive fast and efficiently.