surge.sh - Static website hosting for front-end developers.
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.
GitLab Pages - GitLab Pages you can create static websites for your GitLab projects, groups, or user accounts.
Statically - The free optimization & CDN for images, CSS, JavaScript, and open source.
GitHub Pages - A free, static web host for open-source projects on GitHub
raw.githack.com - raw.githack.com serves raw files from github.com with proper Content-Type headers (like rawgit.