Open Source with permissive license (Apache License 2.0) Same window for all your documents Tabs and docking system to show documents Dark mode available written in Java You can change of skin of the application, including some dark themes. Run the application inside your Java IDE using Applet Runner plug-in. Save your preferences in different .ini files. Keep the application window always on top
![Joeffice](https://cdn-ak-scissors.b.st-hatena.com/image/square/b0ccc75ba84dd2a257d42167c3cd7bfa477e53e6/height=288;version=1;width=512/https%3A%2F%2Fwww.joeffice.com%2Fimages%2F4square.png)