
Remark42
Remark42 is a lightweight, privacy-focused self-hosted comment system with social/email login, moderation tools, notifications, and easy embedding for blogs and sites.

Remark42 is a lightweight, privacy-focused comment engine designed to be embedded into blogs, articles, and other websites where readers leave comments. It is built to minimize data collection, avoid third-party tracking, and remain simple to deploy and operate.
Key Features
- Embeddable comments widget with multi-level nested threads (tree or plain view)
- Authentication via multiple providers plus email login, with optional anonymous access
- Markdown formatting with a toolbar for writing comments
- Moderation tools including comment removal and user blocking
- Voting, pinning, comment verification, and sorting options
- Image uploads with drag-and-drop support
- RSS feeds for all comments and per-post comment streams
- Notifications for admins (email, Telegram, Slack, webhooks) and reply notifications for users
- Import tools for migrating from Disqus and WordPress
- Single-instance multi-site mode
- Data export to JSON with automatic backups; no external database required
Use Cases
- Add a privacy-respecting comment section to a personal blog or documentation site
- Replace hosted comment platforms while keeping control over data and retention
- Run a single commenting backend for multiple websites from one installation
Remark42 combines straightforward deployment with a feature-complete commenting experience, while emphasizing privacy and minimal data retention. It is well suited for site owners who want modern commenting without external trackers or complex infrastructure.






