Feature-rich and lightning fast forums. Works standalone or as a Rails engine. Markdown by default, with plugins for code highlighting, KaTeX math, and BBCode. No JavaScript required. Easy deployment on Heroku or with Ansible.
Platforms
- Self-Hosted



Apps similar to GraphComment include Discourse, which is open source and free for personal use. Other options are Disqus, Viafoura, Spot.IM and Coral by Vox Media. Comment Platforms like GraphComment are a crowded field, with more than 25 alternatives for the web, self-hosting, Android and iPhone.
Feature-rich and lightning fast forums. Works standalone or as a Rails engine. Markdown by default, with plugins for code highlighting, KaTeX math, and BBCode. No JavaScript required. Easy deployment on Heroku or with Ansible.



DebateIsland.com is a leading online debate platform which uses A.I. to revolutionize online debating. The site features numerous debating formats including Casual, "Persuade Me," Formalish, Formal Traditional Debating, and Lincoln-Douglas Debating.
IntenseDebate is the premier commenting system available on the Internet for blogs and websites. IntenseDebate comments enhances and encourages conversation on your blog or website. With IntenseDebate you can give your blog readers the opportunity to better engage your blogs...
Open source, lightweight (~5kb gzip), privacy-friendly alternative to Disqus.




Livefyre was an embeddable real-time commenting platform that turned comments on any site into live conversations, increased the quality of those conversations, and drove traffic to content around the web.

It's basically a closed source self hosted new and re-thinked forum solution, which can also work as commenting system.




Previously, ChangeAView.com, now rebranded as Ceasefire, the website is based on the principles founded by the reddit community /r/ChangeMyView, and it aims to encourage insult-free discussions, and exploration of opposite points of view.
An embeddable comment widget for websites, blogs, ecommerce & static pages. Joint Comments distributes JOINT tokens (erc-20 based cryptocurrency) to publishers based on the value of traffic.
It is free to use up to 250k page views / month.

Whether you're a Blogger or a Small Business, a Comics app or a Video Aggregator, CrossTalk is for everyone




ForumFree allows you to create a forum or a blog in a few simple steps. You have a completely free site that also allows you to earn money with advertising. You can use one of the themes already created by our users, or you can customize your own.
ComBase is a modern community platform that helps businesses build branded customer communities, support hubs, internal communities, and partner portals.




An open-source framework for social features. Build social apps faster with powerful API and SDKs for JavaScript, React, and React Native.

