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.

Typora - A minimal Markdown reading & writing app.

Google Keep - Capture notes, share them with others, and access them from your computer, phone or tablet. Free with a Google account.

Hemingway - Hemingway App makes your writing bold and clear.

Obsidian.md - A second brain, for you, forever. Obsidian is a powerful knowledge base that works on top of a local folder of plain text Markdown files.

MarkNote - A simple markdown note management app.