MiniSearch is a tiny but powerful in-memory fulltext search engine written in JavaScript. It is respectful of resources, and it can comfortably run both in Node and in the browser.

Halfmoon is a front-end framework with a built-in dark mode and full customizability using CSS variables; great for building dashboards and tools.

Maizzle is an email framework that helps you quickly build emails with utility-first CSS and advanced, email-specific post-processing.