Disqus Disqus offers the best add-on tools for site owners to power discussions, increase engagement, and earn revenue. Freemium Web Windows Phone Wordpress OAUTH Add a feature 85 Like
Isso Isso – Ich schrei sonst – is a lightweight commenting server written in Python and JavaScript. It aims to be a drop-in replacement for Disqus. It supports CRUD... Free Open Source Linux No features added Add a feature 14 Like
HashOver HashOver is a PHP comment system intended as a replacement for services like Disqus. HashOver is free and open source software, under the GNU Affero General Public... Free Open Source Self-Hosted No features added Add a feature 10 Like
talkatv talkatv is an open source comment service much like Disqus or IntenseDebate . Free Open Source Web JavaScript Embeddable Add a feature 12 Like Discontinued The last commit to the GitHub repo was on December 3rd, 2012.
coComment coComment is a service for managing, powering and researching conversations online. When using coComment, you can keep track of your comments across any site, share them... Free Open Source Mac OS X Windows Linux Firefox Firefox extension Add a feature 4 Like Discontinued Seems to be discontinued as of April 2 2013.
Commentics Commentics is an advanced PHP comment script with many features. Its main aims are to be integrable, customizable and secure. It is designed to be integrated into your... Free Open Source Mac OS X Windows Linux No features added Add a feature 4 Like
Commentar Commentar is a self hosted open source commenting system which can easily be integrated into any existing system. It is a modular system and some features that will be... Free Open Source Self-Hosted Modular System Add a feature 5 Like Discontinued The last commit to the GitHub repo was on Juky 27nd, 2014.
Juvia A commenting server similar to Disqus and IntenseDebate Licensed under AGPL: https://github.com/phusion/juvia/blob/master/LICENSE.TXT Free Open Source Web Self-Hosted No features added Add a feature 7 Like Discontinued Per project's README: Juvia is currently unmaintained. See https://github.com/phusion/juvia
Master Comments System Master Comments System is a very compact comments system with basic options: Comments can be accepted from all users or only registered users. Admin can... Free Open Source Self-Hosted No features added Add a feature 5 Like
jskomment jskomment is an open source commenting system that is built on javascript and AJAX. Free Open Source Linux BSD Self-Hosted No features added Add a feature 6 Like
Commento A lightweight, privacy-focused comment engine alternative to Disqus. Free Open Source Mac OS X Windows Linux Self-Hosted Go (Programming Language) No features added Add a feature 5 Like
Spirit-Project Spirit is a modern discussion platform. Notifications Receive an automatic notification everytime someone mentions your @name, quotes you or answers to your... Free Open Source Self-Hosted Django Add a feature 6 Like
RbComment RbComment - Zend Framework 2 module for drop-in, self-hosted comments, with email notifications, Akismet, ZfcUser and Gravatar integration. Free Open Source Self-Hosted No features added Add a feature 4 Like
JustComments Just Comments is a simple and reliable commenting system for any website. Its features include easy integration, custom authentication, multiple languages, Gravatar... Commercial Web No features added Add a feature 3 Like
Epoch by Postmatic A native WordPress Disqus alternative with a focus on speed and privacy: 100% realtime native comments in a tiny little package that is fully CDN and cache compatible. Free Self-Hosted Wordpress No features added Add a feature 1 Like
