A lightweight and modular front-end framework for developing fast and powerful web interfaces.
Well suited for website, landing pages etc.
Also, nice extra: Autocomplete plugins for both Atom and Sublime Text 3.
Stream Ui Kit
So, if you know bootstrap already, you will feel home very fast.
I haven’t take the time to play with this one but it looks nice.
Gotta love simplicity
Only 2kb gzipped
One of the best around.
Open source dashboard UI.
Light open source UI Kit
An open source UI kit from Portugal.
Exist with Rails flavour – or agnostic.
Google Material Design
Not made by Google though.
Also exist as an npm install flavour.
Nice webfrontend for app.
Go check it here: http://topcoat.io/
That’s a good choice to start with.
This doesn’t even include paid one or open source react / vue / angular frameworks.
Let me know if you know of an other one you think should make the list.
These are the one I have found by searching the web for stuff but maybe you know an other one worth mentioning. Hit me by email, in the comments or on social.