See the full list: https://github.com/topics/comment-system?o=desc&s=stars Another list: https://lisakov.com/projects/open-source-comments/ - https://remark42.com/demo/  - https://valine.js.org/  - https://twikoo.js.org/  - https://giscus.app/  - https://artalk.js.org/ 
