Is KMReader compatible with Komga?
Yes. KMReader works with any Komga 1.20.0 or later server, including KMServer.
Frequently asked questions
Komga compatibility, migration, offline reading, and platforms.
Do I need to migrate my library?
No. Point KMServer at your existing library directories and it scans them in place. Your files stay where they are.
Can KMServer use my existing library?
Yes. KMServer reuses your existing library structure; there is nothing to reorganize or re-import.
Can KMServer use my existing database?
Yes. Point it at an existing komga data directory and it upgrades database.sqlite in place with byte-for-byte Flyway migrations. The Java version can still open the result, so you can switch back at any time.
Can I continue using other Komga clients?
Yes. KMServer speaks the same API: REST, OPDS v1.2/v2, SSE, Kobo and KOReader sync. Your existing clients reconnect without changes.
Does KMReader work offline?
Yes. Downloaded books stay fully readable offline: pages, covers, metadata and progress are stored locally.
Does reading progress sync?
Yes. Progress is tracked offline first and synced to your server when you reconnect, so it follows you across devices.
Does KMReader support EPUB?
Yes, on iOS and macOS, with themes, fonts, and layout controls.
Does KMReader support PDF?
Yes, on iOS and macOS.
Does KMReader support DIVINA?
Yes, on every platform: iOS, macOS, and tvOS.
Does KMReader work on Mac?
Yes. KMReader is a native macOS app (macOS 14.0 or later) with dedicated reader windows, menu bar actions, and keyboard-first controls.
Does KMReader work on Apple TV?
Yes. KMReader is a native tvOS app (tvOS 17.0 or later) with remote-first DIVINA reading.
Can KMReader connect to multiple servers?
Yes. Save several servers, switch between them at any time, and sign in with a password or an API key.
Is kmworks open source?
Yes. Every kmworks project is MIT licensed: KMServer, KMReader, and the web UI.
Is kmworks affiliated with Komga?
No. kmworks is built for the Komga ecosystem but is independent of it, and is not affiliated with the Komga project.
What is kmrs?
kmrs is the technical name of KMServer: the repository, the Docker image, and the binary are all called kmrs. The product is KMServer.