If you quickly want to lookup some code in a GitHub repository or edit it, then this is a good trick to know.

All you need to do is add "box" between the "github" and ".com" and it will redirect to codeSandBox

Steps, incase the gif is not clear

1. Open any public GitHub repo
2. Add "box" in-between "github" and ".com"

Here is an example

Change

https://github.com/httpie/httpie

to

https://githubbox.com/httpie/httpie