pm2
Production process manager for Node.JS applications with a built-in load balancer.
ts-node-dev
Compiles your TS app and restarts when files are modified.
pmx
PM2/Keymetrics advanced API
node-dev
Restarts your app when files are modified
spica
Supervisor, Coroutine, Channel, select, AtomicPromise, Cancellation, Cache, List, Queue, Stack, and some utils.