cdnjs - An open source community driven JS/CSS CDN.
CoralCDN - CoralCDN is a free and open content distribution network based around peer-to-peer technologies...
jsDelivr - A free, fast, and reliable Open Source CDN for npm and GitHub with the largest network and best performance from all OSS CDNs. Serving 100 billion requests per month.
CloudFlare - Cloudflare is a global network designed to make everything you connect to the Internet secure, private, fast, and reliable.
Google Hosted Libraries - A stable, reliable, high-speed, globally available content distribution network for the most popular open-source JavaScript libraries.
KeyCDN - KeyCDN is a high-performance Content Delivery Network (CDN). Lowest price globally at $0.04/GB with HTTP/2 Support and free Origin Shield.