Hi everybody,
there is a list of all hass icons.
Is there a website (or perhaps a jinja2 template to use in developer settings => templates) to see all those icons and their name? Something similar to this site (which is for material design icons)?
I know that I can just edit some entity in the UI and type hass:<icon> to preview it there. But it’d be nice to have an overview of all icons available when creating entities via yaml.
Thanks in advance for your ideas 
They are the same icons. As far as I know everything will eventually become mdi:.
You should only use mdi:<icon>
hass: is for internal use and uses the same icon names as mdi in nearly all cases.
The current version of mdi icons available for use in home assistant is listed here: frontend/package.json at c92eeb6bb78b699050d6e6d903afef513b433d6b · home-assistant/frontend · GitHub
You can see all the icons in this package here: Material Design Icons (update the URL to see other packages).
You can see all the mdi icons (even those not yet used by HA) here: https://materialdesignicons.com/
There’s also this but I have no idea if it is current: