AboutPreview HTML is a plug-in for Notepad++, which allows you to preview HTML files inside Notepad++.
Read the documentation on how to use the plugin.
DownloadsThe latest version of the plugin can be downloaded from this site:
The plugin is written in Delphi (currently Delphi 10.2 Tokyo), and the source code (as well as these accompanying web pages) is kept in this Fossil repository. You’re welcome to clone it, and play with it!