The best open source alternative to Disqus is Isso. If that doesn't suit you, our users have ranked more than 50 alternatives to Disqus and many of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Disqus are Commento, giscus, utterances and Zoomment.
Isso – Ich schrei sonst – is a lightweight commenting server written in Python and JavaScript. It aims to be a drop-in replacement for Disqus.
its basically like diquis commenting posting viewing and more
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 privacy and does not include third-party trackers and advertisements, unlike alternatives such as Disqus.
Can be self-hosted or not. Free if you've contributed.
Because is really fast, and I see a bright future, as Mozilla and Digital Ocean are sponsoring it.
It's open source and it's lightweight.
A comments system powered by GitHub Discussions. Let visitors leave comments and reactions on your website via GitHub!
Github code discussions don't have much in common with a generalised Disqus
A lightweight comments widget built on GitHub issues. Use GitHub issues for blog comments, wiki pages and more!
Probably better but only if you want your site to use GitHub issues as a way of storing comments. Beneficial for Jekyll / GitHub Pages websites, though.
Zoomment is an open-source commenting platform that allows websites to embed a modern, interactive comments section with minimal setup. It’s fully customizable with themes, languages, Gravatar styles, and emoji reactions, enabling creators to foster engagement and community...
Chirpy is an open-source, privacy-friendly and customizable Disqus (comment system) alternate, you can embed a comment widget on a blog, a news article or any place where you want your readers to add comments.
Coral is an open source commenting tool from Vox Media, helping publishers of all sizes build better communities. It runs the comments on the Wall Street Journal, the Washington Post, the Globe and Mail, and dozens of other websites around the world.
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 License. HashOver adds a "comment section" to any website, by placing a few simple lines of JavaScript or...
The latest code of Hashover Next (2.0) works under PHP 8.2. Latest updates from November 2022. I’m not sure if the development has stopped since then or not.
Remark42 is a self-hosted, lightweight, and simple (yet functional) comment engine, which doesn't spy on users. It can be embedded into blogs, articles or any other place where readers add comments.
Cactus Comments is a federated comment system for the web, based on the Matrix protocol. The system is easily embedded, respects you and your users privacy and is completely free and open source.
You need to run your own Matrix homeserver.
PostgreSQL needed for self-hosting.
Cusdis is one of the easiest solutions to implement and customize that I've tried. There's a free (limited) hosted version and you can easily self-host. Only downside is that it lacks the fancier features of Disqus and a spam filter.
ommentics 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.
Should run on every standard webhosting plan, but needs MySQL database.
Germany
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Indonesia
Docker or Python only, easy to install (when you know how), cheap admin interface, but easy to free-self-host on any Raspeberry server ! Without data tracking or ads.