Grammarly - Clear, effective, mistake-free writing everywhere you type.
Authorly - Read | Write | Explore - Connecting Authors
Linguix - AI-enabled writing tool for writers, editors, and businesses
Kludd.co - Everyone writes.
TabComplete - Secure Autocomplete for Chrome
Joplin - Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks. The notes are searchable, tagged and modified either from the applications directly or from your own text editor.