Suwayomi-Server is a self-hosted manga server that serves content via OPDS feeds for use with compatible reader applications. It functions as a personal manga library server, allowing users to organize, browse, and read manga from any device with offline support and automatic chapter updates.
The server distinguishes itself through its extension-based source abstraction, which loads and executes third-party extensions at runtime to fetch content from various providers. It implements a bidirectional sync protocol using timestamped progress markers to reconcile reading positions across multiple client devices, and exports library metadata and reading progress into a portable JSON schema compatible with the Mihon ecosystem for disaster recovery and migration. The server also integrates with FlareSolverr to solve Cloudflare challenges automatically when accessing protected sources, and pushes reading progress updates to external tracking services via OAuth-authenticated webhook calls.
The project supports container deployment via Docker for isolated and portable hosting, and can be hosted remotely for access from any client or web browser. It provides library organization with categories, automated updates and downloads for new chapters, and offline reading capabilities through structured file caching.