Caderno is described by its author as

Caderno is a remake of the common program “notepad”

Another point the author likes to emphasis is that Caderno attempts to re-create a Firefox like experience. One important feature of Caderno that makes the aforementioned statement true, and the program very much Firefox-like, is that it comes with a ‘find as you type’ feature to search .txt or other files. It also features tabs for opening multiple documents. A session management console allows a user to work with a set number of documents and be able to reload them together. The revert feature – found under the file menu – can reload the last saved version of an open document. Caderno also supports PHP code completion, syntax highlighting for a growing number of languages and an improving though yet not full support for utf documents. A portable version is also in the works and should arrive after the author makes decisions on how to handle the program’s built-in crash recovery when working with a USB thumb drive.
Caderno is a relatively young project and a very interesting one, it should run on all more recent versions of Windows.