Is it safe to run multiple instances of Puppeteer at the same time?

Question

Is it safe/supported to run multiple instances of Puppeteer at the same time, either at

1. the process level (multiple node screenshot.js at the same ti

Answer 1

Both will work but second one doesn't really make a sense. Reason for that is because nodeJS i single threaded. So even if process will work it won't be faster of easier to use multiple instances of browser in one process rather than in multiple processes. Best option is to run (1) as you did before, only thing you need to remember is to keep tests self contained.