FileCenter is described as 'is easy-to-install, easy-to-use paperless office software which helps home and professional users scan, archive, organize, and find computer files. FileCenter is filled with time-saving features, giving you a complete solution within a single, simple interface' and is an app in the Office & Productivity category. There are more than 50 alternatives to FileCenter for a variety of platforms, including Windows, Online / Web-based, iPhone, iPad and Android. The best alternative is Joplin. It's not free, so if you're looking for a free alternative, you could try Standard Notes or Evernote. Other great apps like FileCenter are CherryTree (Free, Open Source), Cryptee (Freemium, Open Source), PDF Arranger (Free, Open Source) and DEVONthink (Paid).
This program is a structured notetaking application based on GTK+ 3. Write your notes in instantly-formatted Markdown, organise them in a tree of folders that can be instantly navigated from within the program, and add hand-drawn notes by mouse, touchscreen or digitiser.