In addition to http://youmightnotneedjquery.com/ this is a list of commonly used plugins without dependencies
created at April 20, 2015, 7:29 a.m.
TransitionEnd is an agnostic and cross-browser library to work with transitionend event.
created at Dec. 24, 2012, 11:47 a.m.
A responsive slider jQuery plugin with CSS animations
created at June 25, 2015, 2:30 p.m.
Add a super simple rotating text to your website with little to no markup
created at Aug. 13, 2013, 12:57 p.m.
jQuery plugin for responsive and accessible modal windows and tooltips
created at Jan. 21, 2013, 3:02 p.m.
Lightweight, vanilla javascript parallax library
created at Feb. 29, 2016, 11:12 p.m.
One property, two values, endless possiblities
created at Oct. 30, 2011, 6:49 a.m.
Sanitize untrusted HTML (to prevent XSS) with a configuration specified by a Whitelist
created at Sept. 18, 2012, 2:05 p.m.
jQuery contextMenu plugin & polyfill
created at July 6, 2011, 8:29 p.m.
Progressive <svg> pie, donut, bar and line charts
created at Nov. 20, 2009, 1:49 p.m.