Free comment tools or service for developers

Cactus Comments

Cactus Comments is a federated comment system for the web, based on the Matrix protocol.

Tags: comment

Commentbox

Hosted commenting thats painless to embed, a pleasure to use, and a breeze to moderate

Tags: comment

Commentics

Commentics is a free, advanced PHP comment script with many features. Professionally written and with open source code, its main aims are to be integrable, customizable and secure. It is designed to be integrated into existing pages.

Tags: comment

Disqus

Disqus offers the best add-on tools for websites to increase engagement. We help publishers power online discussions with comments and earn revenue with native advertising

Tags: comment

Giscus

A comment system powered by GitHub Discussions. 💬 💎

Tags: comment

Hashover

A free and open source PHP comment system designed to allow completely anonymous comments and easy theming

Tags: comment

Isso

A commenting server similar to Disqus

Tags: comment

utterances

A lightweight commenting system using GitHub issues.

Tags: comment

Webmention.io

Webmention.io is a hosted service created to easily receive webmentions on any web page.

Tags: comment, webmention