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.

Monkkee - Keep a private journal securely on the Internet – to provide a convenient user experience your...

Tabbles - Tabbles use tags to organize and find files along with your colleagues.

Scrapbox - A new style of note-taking that lets you create, discuss, and learn together in one self-organizing space.

allTags - allTags is a free, tag based file management application.

Idea Notebook - Idea Notebook is an app that allows you to keep track of your logs business ideas and track as well as organize them.