htmx
A small JavaScript library that lets web pages update in place without a heavy front end framework.
htmx is a small open-source JavaScript library for building websites. It lets a page update part of itself when you click something, without the developer writing much JavaScript and without one of the large front end frameworks like React. You add a few extra attributes to your HTML and the library handles the rest.
It matters here mostly as a cultural marker. htmx became a rallying point for developers who think web development got more complicated than it needed to be, and its creator, Carson Gross, writes and speaks in that spirit. That is the background to his 2026 No AI Fridays proposal, which asks teams to switch their AI coding assistants off one day a week.