grav-plugin-mathjaxThis plugin allows you to include math formulas in your web pages, either using TeX and LaTeX notation, and/or as MathML.
grav-plugin-external-linksThis plugin adds small icons to external and mailto links, informing users the link will take them to a new site or open their email client.
grav-plugin-tocThis plugin automagically generates a (minified) Table of Contents based on special markers in the document and adds it into the resulting HTML document.
grav-plugin-jscommentsJSComments is a Grav (http://github.com/getgrav/grav) plugin which allows to integrate comments into individual pages from Discourse / Disqus / Facebook / Google+ / HyperComments / IntenseDebate / Isso, and Muut comment systems.
grav-plugin-themerThis plugin enables you use different themes on one site individual set per page or collection.