Opuscule is a minimalist writing and note-taking application with a few twists. Its main goal is to help you write the smaller parts of bigger documents quickly, in any order, with as little clutter as possible, but you can also use it for simple notes or journaling. The workflow is optimized for keyboard-only use.
You can export your notes as HTML documents: browse them locally, share them online, or even link them together to build a static website.
Opuscule is developed with Godot and is available for Windows, macOS and Linux. It's free, and will probably go open source if I find enough time to release code I'm not ashamed of.
See Opuscule's website, generated with Opuscule.