JetBrains editors - Expensive, but they come with pretty incredible code intelligence and refactoring tools. Lots of stuff you'd have to configure yourself or use plugins for in other editors "just works" in JetBrains.
Visual Studio Code - Pretty good out of the box, configurable, versatile, and free.
GitHub Pages - Mostly painless hosting for static sites. Works well with Git, obviously. But it was bizarrely difficult to set up a custom domain; the process is riddled with errors and footguns.
Neocities - Freemium, indie, social web hosting. A spiritual successor to Geocities. Much easier to add a custom domain to than GitHub Pages.
My go-to JavaScript tools and libraries
TypeScript - Statically-typed superset of JavaScript. Owned by Microsoft.
Vite - Fast, easy-to-use dev server for single-page apps. Built-in hot-reloading and TypeScript compilation, among other features.
Bun - blazing fast, but somewhat crash-prone replacement for node and npm that also implements some web APIs (but no DOM). I use Bun to run mdsite and Taste tests.
Prettier - On many of my older projects, I use Prettier for code formatting.