What is Grimmory used for?

Grimmory is a self-hosted digital library for ebooks, comics and audiobooks, with smart shelves, metadata lookup, a built-in reader and device sync. It is a good fit for hosting a household ebook library, and reading and syncing comics across devices.

Is Grimmory open source?

Yes. Grimmory is open source under the AGPL-3.0 licence. Its source code is on GitHub at grimmory-tools/grimmory and is written mainly in Java.

Yes. Grimmory is open source, so the software itself is free to use.

Can I self-host Grimmory?

Yes. Grimmory can be self-hosted on your own server or infrastructure; there is no official hosted version.

What is Grimmory an alternative to?

Grimmory is an open-source alternative to Audible, Everand, Storytel and Libro.fm. Other open-source alternatives to Audible include Audiobookshelf.

Is Grimmory actively maintained?

Yes. The most recent commit to Grimmory was on 2 October 2026, and the latest release is v3.5.0, published on 21 September 2026. The project has 4.5k stars on GitHub.

Grimmory: open-source alternative to Audible, Everand

About Grimmory

Grimmory is a digital library you host yourself, built for avid readers. It organizes ebooks, comics and audiobooks on your own server, with a web interface for browsing, searching and reading, so your collection is not locked inside a single vendor's store or app.

Features include smart shelves that filter by rules and tags and support full-text search, and metadata lookup that pulls covers, descriptions, reviews and ratings from Google Books, Open Library and Amazon, all of which can be edited. A built-in reader displays PDF, EPUB and comic files inside the browser, with support for annotations, highlights and progress tracking. Devices can sync through Kobo, any OPDS-compatible app or KOReader, and multiple users can have separate shelves. Topics list many formats and OIDC sign-in.

Grimmory is built with Java and Angular, licensed under AGPL-3.0, and documented with a quick start guide and Discord community. It suits book collectors and households that want a private, shared reading library.

Key features

Smart shelves with rule-based filtering
Metadata lookup from Google Books and Open Library
In-browser reader with annotations
Kobo, OPDS and KOReader sync
Separate shelves per user
Support for EPUB, PDF and comic formats

Good fit for

→Hosting a household ebook library
→Reading and syncing comics across devices

Built with: Java; Angular
Tags: ebooks; library; comics; audiobooks; self-hosted; opds; epub; reader

Grimmory: questions and answers

What is Grimmory used for?: Grimmory is a self-hosted digital library for ebooks, comics and audiobooks, with smart shelves, metadata lookup, a built-in reader and device sync. It is a good fit for hosting a household ebook library, and reading and syncing comics across devices.
Is Grimmory open source?: Yes. Grimmory is open source under the AGPL-3.0 licence. Its source code is on GitHub at grimmory-tools/grimmory and is written mainly in Java.
Is Grimmory free?: Yes. Grimmory is open source, so the software itself is free to use.
Can I self-host Grimmory?: Yes. Grimmory can be self-hosted on your own server or infrastructure; there is no official hosted version.
What is Grimmory an alternative to?: Grimmory is an open-source alternative to Audible, Everand, Storytel and Libro.fm. Other open-source alternatives to Audible include Audiobookshelf.
Is Grimmory actively maintained?: Yes. The most recent commit to Grimmory was on 2 October 2026, and the latest release is v3.5.0, published on 21 September 2026. The project has 4.5k stars on GitHub.