Disqus

Disqus offers the best add-on tools for site owners to power discussions, increase engagement, and earn revenue.

Freemium $ $ $ Web Wordpress

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

Commento

Commento is a popular, fast, bloat-free commenting system that you can embed on your blog, news articles, and more. Open source at its core, Commento guarantees you...

Freemium Open Source Mac Windows Linux Web BSD ... Self-Hosted

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

talkatv

talkatv is an open source comment service much like Disqus or IntenseDebate .

• Discontinued The last commit to the GitHub repo was on December 3rd, 2012.

Free Open Source Web JavaScript

JustComments

Just Comments is a simple and reliable commenting system for any website. Its features include easy integration, custom authentication, multiple languages, Gravatar...

Commercial $ $ $ Open Source Web Self-Hosted Software as a Service (SaaS)

utterances

A lightweight comments widget built on GitHub issues. Use GitHub issues for blog comments, wiki pages and more!.

Free Open Source Self-Hosted GitHub

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...

• Discontinued Latest commit 39def28 on Jul 29, 2013

Free Open Source Self-Hosted

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...

• Discontinued The last commit to the GitHub repo was on Juky 27nd, 2014.

Free Open Source Self-Hosted

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

Joint Comments

An embeddable comment widget for websites, blogs, ecommerce & static pages. Joint Comments distributes JOINT tokens (erc-20 based cryptocurrency) to publishers...

Free Web Shopify Wordpress

Juvia

A commenting server similar to Disqus and IntenseDebate Licensed under AGPL: https://github.com/phusion/juvia/blob/master/LICENSE.TXT

• Discontinued Per project's README: Juvia is currently unmaintained. See https://github.com/phusion/juvia

Free Open Source Web Self-Hosted

Livefyre

Livefyre is an embeddable real-time commenting platform that turns comments on any site into live conversations, increases the quality of those conversations, and drives...

• Discontinued Livefyre was acquired by Adobe and integrated into the Adobe Experience Manager. The Community Comments feature is being discontinued: https://livefyre.zendesk.com/hc/en-us/articles/215571503-Details-and-important-dates

Free Web

IntenseDebate

IntenseDebate is a feature-rich comment system for WordPress, Blogger, Tumblr and many other blogging/CMS platforms.

Free Web TypePad Tumblr Blogger Wordpress

Facebook Comments Box

Comments Box is a social plugin that enables user commenting on your site. Features include moderation tools and distribution. Social Relevance: Comments Box uses...

Free Web