# Grimmory

9 Hacker News commenters recommended Grimmory and 1 criticized it, November 2025 to November 2026. It was recommended in 4 of 13 months.

**Verdict:** Self-hosted ebook library that serves OPDS, Kobo and Kindle clients from a web app, seen as a Calibre alternative. Caveat: it is heavier than lighter options.

## Why people recommend it

- Covers nearly every use case (2 comments): "it's definitely not the lightweight simple solution, its the everything under the sun solution" ([source](https://news.ycombinator.com/item?id=49433365)) "Opds, kobo api, kindle email and web reader cover pretty much every use case." ([source](https://news.ycombinator.com/item?id=49428655))
- Works with OPDS and KOSync (2 comments): "Opds, kobo api, kindle email and web reader cover pretty much every use case." ([source](https://news.ycombinator.com/item?id=49428655)) "Works great with OPDS and KOSync." ([source](https://news.ycombinator.com/item?id=49097037))
- Web app suited to homelabs (2 comments): "Grimmory is a web application first which is what I want." ([source](https://news.ycombinator.com/item?id=49428962)) "Just added it to my homelab." ([source](https://news.ycombinator.com/item?id=49429682))

## What people warn about

- Not lightweight or simple (1 comments): "it's definitely not the lightweight simple solution, its the everything under the sun solution" ([source](https://news.ycombinator.com/item?id=49433365))

## Alternatives hackers recommend

- [Calibre](https://hackerapproved.com/p/calibre.md): 107 recommend
- [Calibre-Web](https://hackerapproved.com/p/calibre-web.md): 19 recommend
- [Kavita](https://hackerapproved.com/p/kavita.md): 5 recommend
- [Send to Kindle](https://hackerapproved.com/p/send-to-kindle.md): 5 recommend
- [Shelfmark](https://hackerapproved.com/p/shelfmark.md): 5 recommend

## Cite as

Hacker Approved, "Grimmory", https://hackerapproved.com/p/grimmory/ (counts from 1,795,640 Hacker News comments, November 2025 to November 2026).