Self-Hosted Comment Systems

Remark42 is a self-hosted, privacy-focused commenting engine designed for websites and blogs. It functions as a standalone application that can be deployed as a single binary or a containerized image across different operating systems. The system allows a single instance to host commenting services for multiple distinct domains through multi-site management. It utilizes an identity layer that verifies users via email, anonymous accounts, or social providers using OAuth authentication. The platform supports threaded conversations with Markdown formatting and provides administrative tools for

Commento is a self-hosted, privacy-focused commenting system used to embed lightweight discussion sections into websites. It provides a way for visitors to read and post comments while avoiding third-party tracking. The platform includes specialized utilities for migrating existing discussion history and user data from external commenting platforms. It also integrates identity provider support and single sign-on to verify the identity of users participating in discussions. Administrative capabilities cover community discussion moderation through spam filters and manual review tools. The syst

Gitalk is a comment system that uses GitHub Issues as a backend to store and manage discussions for websites. It provides a comment component built with Preact for embedding interactive discussion areas into web pages. The system utilizes GitHub OAuth for identity verification, allowing users to authenticate through their GitHub accounts to manage comment permissions. It also includes a multi-language widget that supports interface translation based on browser settings or manual configuration. The project covers broader capabilities for comment section management, including the ability to re

Isso is a self-hosted commenting system and WSGI comment server that allows users to manage decentralized discussion boards. It functions as a markdown discussion engine that transforms user-generated content into filtered HTML for secure display on webpages. The system is designed as a cross-domain comment host, enabling a single centralized server instance to serve unique comment sections across multiple distinct domains. It secures this integration using CORS hostname whitelisting to ensure comments are only embeddable on authorized websites. The platform provides a comprehensive moderati

Isso is a self-hosted commenting system that provides a server and client-side script for adding interactive discussion threads to websites. It functions as an independent platform for managing site-wide comment sections and user profiles on private infrastructure, utilizing a JSON API and a Markdown rendering engine to handle user-generated content. The system is designed to support multi-site comment management, allowing a single server installation to serve independent threads for multiple different domains. It includes a dedicated moderation tool featuring signed URLs and an administrativ

Utterances is an embedded commenting system that uses GitHub Issues as a backend to store and manage discussions for websites. It provides a web widget that integrates conversation threads directly into web pages, mapping individual URLs to specific GitHub issues to organize discussions by page. The system integrates third-party identity verification via OAuth to ensure that comments are linked to verified accounts. It automatically handles the creation of tracking tickets when a conversation starts on a page without an existing record, converting website feedback into structured issues. The

Giscus is an open-source discussion widget and website commenting system that uses GitHub Discussions as its backend for storing and managing conversations. It provides an embeddable web component that connects static or dynamic websites to the GitHub API, allowing users to authenticate and write responses using a Markdown-based commenting engine. The system operates by mapping specific website page paths to unique remote discussion threads. This integration enables community engagement and social interaction on websites without the requirement of hosting a private database or backend server.

Giscus is a comment system that enables websites to host interactive discussion sections by leveraging GitHub Discussions as a backend. It functions as a web component that maps specific page URLs or metadata to discussion threads, allowing visitor messages and reactions to be stored and retrieved directly from a linked repository. The system operates by injecting a sandboxed iframe into the host page, which isolates the interface from the parent website's styles while maintaining secure communication through browser messaging protocols. Configuration is handled declaratively via HTML data at

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