timeago
jQuery plugin that makes it easy to support automatically updating fuzzy timestamps (e.g. "4 minutes ago" or "about 1 day ago").
metascraper
A library to easily scrape metadata from an article on the web using Open Graph, JSON+LD, regular HTML metadata, and series of fallbacks.
epoch-timeago
Convert Unix time to a relative time string e.g., "4 hours ago".
rel-payment
Discover a rel="payment" donations URL given a URL for the containing page.