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Grimmory

Ranked 3 of 6 ebook managers by recommenders

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.

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.

10 people gave an opinion

recommend it
9
criticize it
1
approval share
90%
Each figure is one person. RecommendsCriticizes

Recommended in 4 of 13 months

  1. November 2025: not recommended
  2. December 2025: not recommended
  3. January 2026: not recommended
  4. February 2026: not recommended
  5. March 2026: not recommended
  6. April 2026: recommended
  7. May 2026: not recommended
  8. June 2026: not recommended
  9. July 2026: recommended
  10. August 2026: recommended
  11. September 2026: recommended
  12. October 2026: not recommended
  13. November 2026: not recommended (month in progress)

Why it doesn’t carry the badge

  • 9 people recommend itNeeds 10 or more, not met.
  • 9 recommenders for every criticNeeds 2 to 1 or better, met.
  • Recommended in 4 of 13 monthsNeeds 4 or more, met.

The same three rules apply to every product, and the badge can’t be bought. How the badge works

What people say about it

The reasons people give, with the number of comments that give each one. Open a reason to read what they said.

Why people recommend it

Each mark is one comment

  • Covers nearly every use case

    “it's definitely not the lightweight simple solution, its the everything under the sun solution”

    Comment from 25 Aug 2026 in “Bookshelf – Self-hosted eBook library that runs on object storage”

    “Opds, kobo api, kindle email and web reader cover pretty much every use case.”

    Comment from 25 Aug 2026 in “Bookshelf – Self-hosted eBook library that runs on object storage”
  • Works with OPDS and KOSync

    “Opds, kobo api, kindle email and web reader cover pretty much every use case.”

    Comment from 25 Aug 2026 in “Bookshelf – Self-hosted eBook library that runs on object storage”

    “Works great with OPDS and KOSync.”

    Comment from 29 Jul 2026 in “KOReader”
  • Web app suited to homelabs

    “Grimmory is a web application first which is what I want.”

    Comment from 25 Aug 2026 in “Bookshelf – Self-hosted eBook library that runs on object storage”

    “Just added it to my homelab.”

    Comment from 25 Aug 2026 in “Bookshelf – Self-hosted eBook library that runs on object storage”

What people warn about

Each mark is one comment

  • Not lightweight or simple

    “it's definitely not the lightweight simple solution, its the everything under the sun solution”

    Comment from 25 Aug 2026 in “Bookshelf – Self-hosted eBook library that runs on object storage”

Other ebook managers people recommend

The four most recommended other ebook managers, with the same counts for each, so you can compare like for like. The tick on each bar marks the 2 to 1 line the badge needs.

Grimmory compared with 4 alternatives
ProductRecommendCriticizeApprovalMonthsOwnedBadge
Calibre1071588%1310 yrs4 ownersApproved
Calibre-Web190100%9—Approved
GrimmoryThis page9190%4——
Kavita50100%7——
Send to Kindle5550%5——
See all 6 ebook managers, ranked

What people said

10 of the 13 comments that mention it, newest first. Each links to the original comment.

“Shelfmark (+ Grimmory/Calibre) is magic.”

RecommendsComment from 7 Sep 2026 in “Tiny $70 Xteink X3 e-reader”

“I moved from Grimmory to BookOrbit due to the lower resource usage”

CriticizesComment from 25 Aug 2026 in “Bookshelf – Self-hosted eBook library that runs on object storage”

“it's definitely not the lightweight simple solution, its the everything under the sun solution”

MixedComment from 25 Aug 2026 in “Bookshelf – Self-hosted eBook library that runs on object storage”

“Just added it to my homelab.”

RecommendsComment from 25 Aug 2026 in “Bookshelf – Self-hosted eBook library that runs on object storage”

“Grimmory is a web application first which is what I want.”

RecommendsComment from 25 Aug 2026 in “Bookshelf – Self-hosted eBook library that runs on object storage”

“Opds, kobo api, kindle email and web reader cover pretty much every use case.”

RecommendsComment from 25 Aug 2026 in “Bookshelf – Self-hosted eBook library that runs on object storage”

“You can change the store URL to your own Calibre(-web) or Grimmory.”

RecommendsComment from 4 Aug 2026 in “Replacing the Kobo Libra H2O Battery”

“Grimmory is pretty good as a calibre alternative”

RecommendsComment from 30 Jul 2026 in “KOReader”

“Works great with OPDS and KOSync.”

RecommendsComment from 29 Jul 2026 in “KOReader”

“Grimmory is great imo and seems to be in good hands now.”

RecommendsComment from 19 Apr 2026 in “Amazon is discontinuing Kindle for PC on June 30th”

Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.