Contraponto

What it does

Blog analytics

Yeschecked 22 Sep 2026

Community

Users can follow blogs, subscribe by email, receive in-app notifications, and exchange direct messages.checked 12 Oct 2026

Content formats

Posts support Markdown and AsciiDoc, plus tags, series, and custom pages.checked 12 Oct 2026

Custom domain

Yeschecked 22 Sep 2026

Data storage

Uploaded image bytes are stored in PostgreSQL, and the deployment guide says to size backups accordingly because there is no external object store.checked 12 Oct 2026

Deployment requirements

The deployment guide lists Java 25 or Docker, PostgreSQL 14+, HTTPS termination, and an SMTP server as prerequisites.checked 12 Oct 2026

Editorial tools

The platform supports draft and publish workflows, publication snapshots, version history, and an editor-curated homepage.checked 12 Oct 2026

Editorial workflow

Editors can curate featured content on the homepage and administer tags.checked 12 Oct 2026

Federation

Authors can opt in to syndicate posts to Mastodon and compatible servers using ActivityPub.checked 12 Oct 2026

Federation security

When ActivityPub is enabled, the guide requires an encryption secret for actor private keys at rest and advises against enabling unsigned requests in production.checked 12 Oct 2026

Fediverse

Authors can opt in to syndicate posts through ActivityPub to Mastodon and compatible servers.checked 12 Oct 2026

Git integration

Optional Git and Jekyll sync supports Jekyll-shaped repositories for each blog.checked 12 Oct 2026

Integrations

Optional Git and Jekyll synchronization keeps a Git-backed archive for each blog.checked 12 Oct 2026

Intended audience

The platform is built for authors and editors publishing independent blogs on a multi-author site.checked 12 Oct 2026

License

The project is licensed under GNU General Public License version 2.0.checked 12 Oct 2026

Live instance

The repository identifies blogs.commit-mestre.dev as a production instance of the codebase.checked 12 Oct 2026

Operational limits

Git/Jekyll sync and ActivityPub are disabled by default in production, and the default in-memory session store is described as suitable for one node.checked 12 Oct 2026

Product

Contraponto is a self-hostable, multi-author blogging platform.checked 12 Oct 2026

Publishing

Authors can run a main blog and secondary blogs, publish in Markdown or AsciiDoc, and organize posts with tags and series.checked 12 Oct 2026

Reader features

Readers can search, use RSS feeds, save posts to a reading list, add highlights and notes, and comment on posts.checked 12 Oct 2026

Security configuration

The production guide calls for HTTPS, secret storage for database and SMTP credentials, and changing the seeded admin password after first login.checked 12 Oct 2026

Server-rendered

It uses Quarkus, Qute, and HTMX and has no React, Vue, or SPA build step.checked 12 Oct 2026

What it does

Contraponto is a self-hostable, multi-author blogging platform with server-rendered pages.checked 12 Oct 2026