Plain Text Editor allows you to edit plain text files with many options.
Using this application you will be able to open, edit and save plain text files, change foreground and background colors of the editor, select the default font and default font size of the editor, wrap and unwrap the text in the windows, perform spelling checking in English, French, German, Italian and Spanish, change the type and the creator of the documents, and more.
Edit, convert, and annotate PDF files.
Latexian is a handy LaTeX editor application for the Mac.
Create presentations using markdown text as the source of contents.
General use tool to open and edit data in text format on OS X, the most used way to distribute data organized by rows and columns.
ASCII/edit is an editor for tables, diagrams, or simple graphics.