There are 2 repositories under no-login-web-apps topic.
🚀 Awesome (free) web apps that work without login
Webapp for collaborative online retrospectives
👬 Meet In The Middle
Just a calendar to look at, for when you need to look at one.
🚀 Awesome (free) web apps that work without login. With repository stars⭐ and forks🍴
A small little UI for generating often-used command lines.