This looks like a really nice UI kit to include search if you’re using React and already have Elasticsearch. Lots of useful components that you can use (or not use) such as Toggle, Select, ItemList, CheckboxItemList, ItemHistogramList, Tabs and TagCloud. The full announcement can be found here. I’m not exactly clear on how customizable the UI is as far as custom styling but it’s a pretty nice start. I also like how you can extend the results list view to basically show whatever you want. And the RangerFilter component is also pretty nice. I’m curious how it handles more than a couple hundred results. I’ll definitely play around with this and put up a quick demo when I have time. If you can’t wait and want to give it a try yourself, go check out the documentation.