HTML files are opened by default by Web browsers but contain plain text. If you work with HTML files in your small business, it might be easier to edit them if you first save them as text files.

With Markdown, writing HTML-formatted documents is as easy as writing plain text. Software developers use it, but so do many others. The Markdown text format makes it easy for people—not only ...

nvALT isn’t just a general-purpose plain-text editor like TextEdit or BBEdit. Sure, you can use it as you would one of those other apps, to compose long essays or assemble big chunks of code.