Isso

The software provides a self‑hosted commenting system that can replace Disqus on websites. It runs on Python 3.7+ with a SQLite database, storing comments in Markdown and allowing authors to edit or delete their own posts within a configurable time window. Moderated comments remain hidden until approved, and the system can import existing Disqus or WordPress comment archives.

A single configurable JavaScript client, about 65 KB (20 KB gzipped), is embedded in pages to handle display and interaction, supporting major browsers such as Firefox, Safari, Chrome, and Edge. The backend is lightweight, relying on SQLite because comment volumes are modest, and the project offers a Docker image for containerized deployment.

The code is released under the MIT license, is free of subscription or tiered pricing, and is maintained as a stable, open‑source project. Documentation, quick‑start guides, and community support are available through the website, GitHub, and Matrix/IRC channels.