What are some alternatives?
When comparing Instafeed.Js and Elfsight, you can also consider the following products
Behold.so - Easy Instagram feeds for busy devs
PromoRepublic - PromoRepublic is an online editorial calendar for social media marketers and library of custom designed templates and post ideas for social networks. The calendar is stuffed with content for latest trends, important events’ and holidays notifications
SociableKIT - SociableKIT is a website plugin that will help you display social media contents on your website. It allows you to customize the look & feel of your social media contents and display them on your website automatically.
Walls.io - Walls.io is an easy-to-use social wall that allows you to collect, curate and display content from multiple social media platforms such as Facebook, Twitter, Instagram, Youtube, Vimeo, Vkontakte, Pinterest and others.
Smash Balloon - Smash Balloon provides fully customizable social media feed plugins for WordPress.
Curator.io - Curator is a brandable social media aggregator.