The best alternatives to UI95 are Bulma, Nucleus UI, and Mustard UI. If these 3 options don't work for you, we've listed a few more alternatives below.
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AssemblyAI— Speech-to-Text API with superhuman accuracy
Nucleus is a free UI component library that provides you the building blocks you need to design your next mobile app. More than 300 components and 30+ screens to help you protototype or create mockup in Figma at speed.
If the world is your oyster, then the web is your hotdog! Mustard UI was created first as a joke within a small web development team. It then grew to become not only a teaching tool but the starter code for many web projects. The aim is to create a CSS framework that actually looks good. It's still an early concept, but we'd love your thoughts.
A JavaScript/React clone of the Media Player app shipped in Windows 95. Classic UI & functionality to play your media on today's web! Wouldn't be possible without 2 major dependencies - React95 (http://react95.io) & Cassette (github.com/benwiley4000/cassette)