ExpressJS - Sinatra inspired web development framework for node.js -- insanely fast, flexible, and simple
Hevy - Simple workout logging, insightful analytics, and a growing community of gym athletes.
Famous Engine - The Famous Engine is a free and open source JavaScript rendering engine.
HeroSnatch - User-friendly workout tracker for CrossFit athletes
FeathersJS - Wow your users. Build incredible real-time applications in record time.
Strong.app - Strenght training logger.