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Isso

Isso is a lightweight, self-hosted commenting system written in Python that works with static websites.

About Isso

Isso provides a simple way to add comments to a static site without relying on third-party services like Disqus. The whole thing runs as a Python backend you host yourself, using SQLite for storage. It loads fast, respects visitor privacy, and doesn't track anyone.

It supports Markdown formatting in comments, Gravatar integration, and threaded replies. The JavaScript frontend is small and works without jQuery. You can configure it with a single Python script or containerize it with Docker. Isso runs on any Linux server and integrates with nearly any static site generator like Jekyll, Hugo, or Pelican.

Isso is open source under the MIT license, maintained by a small community on GitHub. It is free to use and deploy. The project is mature and stable, with active bug fixes but no commercial backing. It is best for bloggers and developers who want comments without giving up control or user data.
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Quick Facts

Pricing
Free
License
Open Source
Platform
Linux
Version
0.12.6.5
Developer
Isso Community