MathJax - MathJax is a cross-browser JavaScript library that displays mathematical notation in web browsers.

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.

AsciiMath - Easy-to-write markup language and JavaScript display engine for mathematics

aNotepad - anotepad.com is an online text editor that you can write notes and anotepad also has great stability

X (Twitter) - Connect with your friends and other fascinating people. Get in-the-moment updates on the things that interest you. And watch events unfold, in real time, from every angle.

notepad.pw - notepad.pw is a online notepad which allows you to save your text in the cloud with features like