Nute

Nute is a note taking app. It's a super minimal product that just lets you start typing whatever you want. Everything you type on Nute will remain there even if you close it. Nute is lightweight and it loads in an instant, even on slow connections. The app has no account system, so there's no user registration or login, and no syncing across devices. You can, however, download whatever you type in the app as a .txt file on your system.