I have built a Web App for testing, inspecting and analyzing fonts. It's called Typestudio and you can check it out on typestudio.app
My main motivation was to build a Google Fonts like Type Tester, while allowing uploading a font of my choice.
I also wanted to provide an offline experience. So, type designers can test their commercial or proprietary fonts without having to upload them anywhere.
I also wanted the app to support multiple color palette themes to enable how the font would look on real-world web/apps.
The web app is installable
on any device. And like I mentioned before, it can work 100% offline
. It was built for Opentype
fonts and supports all features and variation settings.
And very importantly, the web app is totally accessible
Please check out typestudio.app
and provide your feedback. Thanks. And a happy new year!