Civilizer

Civiilzer is a Dedicated Personal Knowledge Management Tool built by Java. You can use it for purposes such as a high level note application, document store, information hub, etc.
With Civilzer's Markdown editor, you can edit text in Markdown format, but the editor provides a lot more additional features, so you can edit your content in a more stylish fashion.
You can structure and organize your data with tagging, relating, bookmarking.
Civilizer's full text search functionality is simple but powerful. You can search with simple space separated keywords as other tools, but unique Civilizer Search Operators can boost your search ability a lot further. Your search phrase can be fine-tuned as far as you can go.
Another useful feature is its multi-panel view. It helps you view multiple data in the same screen eliminating
the need to jump across separate pages.
Also Civilizer has its own file system. You can store any file with Civilizer and link files to Civilizer's regular data.