- ST3 SublimeLinter plugin for Alex
- ST3 A Sublime Text plugin for proselint
- ST3 Urtext is a syntax and system for writing using plaintext. It is for prose writing, research, documentation, journaling, project organization, notetaking, and any other writing or information management that can be done in text form. For desktop use (PC/Mac/Linux) Urtext is implemented in Sublime Text.