Apache Superset is a Data Visualization and Data Exploration Platform
🐯 visx | visualization components
Appwrite - The Open Source Firebase alternative introduces iOS support . Appwrite is an open source backend server that helps you build native iOS applications much faster with realtime APIs for authentication, databases, files storage, cloud functions and much more!
A data visualization and analytics component, especially well-suited for large and/or streaming datasets.
graphics framework for sveltejs
Library for animated data visualizations and data stories.
Simple HTML5 Charts using the <canvas> tag
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6 projects | news.ycombinator.com | 12 Dec 2022
Thanks for the great summary. It's been years since I was in this field so very helpful to hear what's now available.
What would you use to plot (or downsample and plot) data that updates every second or more frequently? E.g. IoT data streaming in?
I used dygraphs (I think) a decade ago and recently found Lightning JS and this comparison  to other libraries, but the LightningJS license costs are prohibitive outside of well-to-do project domains. And I don't have data that updates that fast - just don't want it badly sampled or drawn.