Devpen is an online Markdown editor with GitHub style.
The all-in-one workspace - notes, tasks, wikis, & databases
Notion is the all-in-one workspace. From notes, tasks, wikis, to database, Notion is all you need. Works great for teams and individuals. Available in the browser, iOS, Mac, and Windows.
Make rich shareable notes within Telegram
Writt lets you make and share notes, right from Telegram.