I just love. It's easy to use and share
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.
OnlineNotepad.org - Free browser-based text editor
MyPost - A quick, user-friendly single webpage creation platform without having to deal with hosting or...
Shrib - Take notes online. 'Free and no login' or 'AI assistant, visitor stats, privacy and productivity': super simple, with publishing and markdown, share to all devices.
JustNotepad.com - A free online notepad allows you to create any text or notes in your web browser.
HTML-Notepad - HTML WYSIWYG editor for structured documents