Plotly is an Open Source Graphing Libraries and an interactive charts and maps for Python, R, Julia, Javascript, ggplot2, F# ...

htmx allows you to access AJAX, WebSockets and Server Sent Events directly in HTML, using attributes, so you can build modern user interfaces with the simplicity and power of hypertext

A tiny JavaScript library to easily toggle the state of any HTML element and its targets. Dropdown, navigation button, tooltip, collapsible panel, lightbox, tabs, switch like above… UI components made in minutes without worried about JavaScript. Only set a few HTML attributes, and code the rest with your CSS skills.