Commento++ is a free, open source, fast & lightweight comments box that you can embed in your static website instead of Disqus.
? FeaturesMarkdown support
Import from Disqus
Voting
Automated spam detection (Askimet integration)
Moderation tools
Sticky comments
Thread locking
OAuth login (Google, Github, Twitter) and single sign-on
Hot-reloading of comments
Email notifications.