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Comment systems software

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Comment systems allow website visitors to leave comments and feedback on content, typically in the form of text. They’re usually associated with blog posts or news articles, but they can be used on any web page. Comment systems can be simple, allowing only plain text, or more advanced, allowing users to include multimedia content such as photos and videos.

This chart displays the market share of the top 10 Comment systems software in 2025, highlighting the most popular tools used by online merchants.1. Livefyre leads with a notable 85.77% share.2. In second place, Disqus at 14.14% share.3. Meanwhile, Vuukle at 0.07% share.
  1. Livefyre1K-10K installs
    Livefyre is a platform that integrates with the social web to boost social interaction.
  2. Disqus1K-10K installs
    Disqus is a worldwide blog comment hosting service for web sites and online communities that use a networked platform.
  3. Vuukle1-10 installs
    Vuukle is an audience engagement and commenting platform.
  4. IntenseDebate1-10 installs
    IntenseDebate is a blog commenting system that supports Typepad, Blogger and Wordpress blogs. The system allows blog owners to track and moderate comments from one place with features like threading, comment analytics, user reputation, and comment aggregation.
  5. Question2Answer
    Question2Answer (Q2A) is a popular open-source Q&A platform for PHP/MySQL.
  6. utterances
    Utterances is a lightweight comments widget built on GitHub issues.
  7. Twikoo
    Twikoo is a simple, safe, free comment system.
  8. Isso
    Isso is a lightweight commenting server written in Python and JavaScript, referred to as "Ich schrei sonst" in German.

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