Stump

Website: stumpapp.dev

Stump is a free and open-source comics, manga and e-book server that you host yourself. Point it at folders of archives and books, let it scan them, and you get a browsable library of covers and series with reading progress kept per user — read it in the browser or through an OPDS reader app. The server is written in Rust (Axum and SeaORM) with a React front end and runs from Docker, a prebuilt binary or a source build.

Key Features

• Mixed formats: EPUB, PDF, CBZ/ZIP and CBR/RAR in one library, each with a reader built into the web interface.
• OPDS v1.2 and v2.0: including OPDS Page Streaming (PSE), so OPDS clients such as KOReader and Panels can browse the catalogue and stream pages rather than downloading whole books.
• Annotations and highlights: EPUB reading keeps highlights and annotations in the library.
• Multi-user access control: accounts with permissions, per-library access and age restrictions, plus OIDC sign-in so you can reuse an existing identity provider.
• Device sync: Kobo and KOReader integrations are documented step by step in the project’s guides.
• Themes and translations: several built-in themes and community translations managed through Weblate.
• Companion apps: the repository also carries a mobile client (icons for connecting to Komga, Kavita and Stump servers are in its assets).

Licence

MIT — the server code is free and open source with no account and no telemetry. One honest caveat: the companion mobile app in apps/expo is licensed GPL-3.0, and one native module it borrowed from Streamyfin is MPL-2.0, so the repository is not uniformly MIT. If you are looking for something more established, Kavita (GPL-3.0) is further along and Komga (MIT) covers comics and manga with a stable API.