giscus
giscus.appA comments widget built on GitHub Discussions
Dev Toolscommentsgithub-discussionsopen-sourceembeddableself-hostedoauthwebsite-widget

About
giscus is an open-source comments system that embeds GitHub Discussions as a comment widget on any website. Visitors can leave comments and reactions using their GitHub accounts via OAuth, and all data is stored directly in GitHub Discussions with no external database required. It supports custom themes, multiple languages, and can be self-hosted.
Problem
Adding a comment system to a website typically requires a database and third-party tracking services.
For
developers and website owners who want to add a comment system to their site
How it works
giscus embeds a script tag on your website that uses the GitHub Discussions API to load and post comments tied to each page, with visitors authenticating via GitHub OAuth.
Business model
free
Status
launched