Jottit is described as 'makes getting a website as easy as filling out a textbox' and is a Note-taking tool in the office & productivity category. There are more than 100 alternatives to Jottit, not only websites but also apps for a variety of platforms, including Windows, Mac, iPhone, Android and iPad. The best alternative is Joplin. It's not free, so if you're looking for a free alternative, you could try Standard Notes or Microsoft OneNote. Other great sites and apps similar to Jottit are Evernote, Simplenote, CherryTree and NoteLedge.
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, can be copied, tagged and modified either from the applications directly or from your own text editor.