Kapowarr is a free, self-hosted comic book manager in the *arr suite. See features, setup, pros, cons, FAQs, and top alternatives for 2026.
Kapowarr is a self-hosted, open-source application that automates the collection, organization, and file management of digital comic books. It follows the same design philosophy as the well-known *arr media automation tools, such as Sonarr and Radarr, applying the same search-download-rename-organize workflow to comic volumes and issues instead of TV shows or movies.
The project is maintained by a developer under the GitHub handle Casvt and is released under the GPL-3.0 open-source license with no company or commercial tier behind it. It runs as a Docker container or manual Python install, making it a natural addition to existing home-lab and self-hosted media server stacks.
Kapowarr matches comics against metadata providers like ComicVine to correctly identify series, issue numbers, and publishers before searching indexers and download clients for available files, then renames and moves the results into an organized library folder structure ready for reading apps like Komga or Kavita.
Core functionality includes automatic and manual issue searching, metadata matching via ComicVine, and support for single issues, trade paperbacks, one-shots, and hardcovers. Once a match is found, Kapowarr automates the full pipeline from download client handoff to renaming, format conversion, and moving files into a consistent folder structure.
The web-based dashboard mirrors the familiar Sonarr/Radarr layout, covering media management settings, download client configuration, metadata preferences, and general application options, all accessible without needing to touch configuration files directly.
Kapowarr integrates with popular self-hosted comic readers such as Komga and Kavita, and exposes a REST API for scripting and third-party integration, letting advanced users tie it into broader home automation and media-management workflows.
Kapowarr is completely free and open source, with no paid tier, license key, or feature restrictions of any kind. The full source code is available on GitHub, and the project accepts voluntary donations through Ko-fi to support ongoing development.
Users who prefer not to self-host can use a managed provider such as ElfHosted, which sells pre-configured Kapowarr instances (often bundled with Komga or Kavita) for a monthly hosting fee, though the underlying Kapowarr software itself remains free regardless of how it is deployed.
Yes. Kapowarr is fully open source under the GPL-3.0 license with no paid tiers or feature restrictions; the developer accepts optional donations via Ko-fi.
The *arr suite refers to a family of self-hosted media automation tools like Sonarr (TV), Radarr (movies), and Lidarr (music). Kapowarr applies the same search-download-organize workflow to comic books.
Yes. Kapowarr focuses on acquiring and organizing comics, and it is commonly paired with reader servers such as Komga or Kavita for browsing and reading the resulting library.
The recommended method is Docker, using the official image published on the project's GitHub repository. A manual Python installation is also supported for users who prefer running it directly on a host machine.
Kapowarr primarily uses ComicVine to match and identify volumes, issues, and publishers for accurate library organization.
Kapowarr itself is self-hosted only, but third-party managed hosting providers such as ElfHosted sell pre-configured Kapowarr instances, often bundled with a comic reader like Komga or Kavita.