You’ve probably heard of Dontpad before. It essentially implements an online notepad, in which you:

  • Don’t login, just use a URL
  • Don’t save, any changes you make are auto-saved
  • Don’t refresh the page, it happens automatically
  • Don’t pay or have to watch Ads

Well, Padn’t is a Dontpad clone, built as I was experimenting with Spring Boot and JDK 17.


Unlike Dontpad, however, it is open-source and very easy to self-host. Disclaimer: Padn’t does not handle concurrent editing as well as Dontpad, and it doesn’t even try to avoid making HTTP requests every few seconds to update or refresh the page.