TidyTabs

Give every window a tabbed user interface

Screenshots

Hunter's comment

Now, you don't need to save several notepad or excel files, for example, on your desktop. You can organize all your files of the same type with this app. You can tabbify all your apps, just like you have tabs in google chrome. For example, if you are using MS paint, you can open different tabs in it and work on different projects at the same time. So TidyTabs is mainly used for tabbyfying the apps installed on your operating system.

Link

https://www.nurgo-software.com/products/tidytabs