The text discusses 16 free tooltip plugins and libraries available on GitHub for creating interactive, animated, accessible, and touch-friendly tooltips in web applications and websites. These tools include Floating UI, Tippy.js, Tether, Hint.css, Balloon.css, Tooltipster, Tipsy, jBox, Microtip, Html5tooltips.js, Powertip, Grumble.js, Protip, Tooltipsy, Tipso, and Toolbar.js. The text also mentions no-code tooltip builders like Chameleon for those with little coding experience.