wp5.qsandbox.com — Try WordPress 5 for free in the cloud in seconds

Features:

* WordPress admin access so you can install plugins and themes or edit plugin or theme files

* No registration required

* Free service

* Each user gets their own private WordPress installation and database

* Quick set up (under 10 seconds)

* SSL for the test sites

* Fast server

video: demo https://youtu.be/_E4KPeGwyOA