Examples of ridiculously simple but useful web apps written in JavaScript? [closed]

Question

Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers.

---

Want to improve this question? Update the question so it's on-topic for Stack Overflow.

Closed 7 years ago.

Improve this question

I'm curious if anyone is using any web app that is extremely simple (very few lines of code). Something that helps you with something practical in your daily life? I'm learning JavaScript and I would like to see examples so that I can build my own, but I want it to be useful so I feel motivated enough to build it.

Answer 1

The d3 page has some awesome examples of really neat yet simple applications: http://mbostock.github.com/d3/