The best ebook managers, according to hackers
6 ebook managers were recommended on Hacker News between November 2025 and November 2026. We rank them by how many separate people recommend each one, and 2 earn the Hacker Approved badge.
Top picks
The two most recommended ebook managers with the badge. Each figure is 10 people. RecommendsCriticizes One comment
Converts between ebook formats
Free, open-source ebook manager that converts formats and loads books onto Kindles and Kobos, keeping old e-readers useful; its clunky, unfriendly interface is the common complaint.
Syncs with Kobo e-readers
Free self-hosted web app that gives a Calibre library a multiuser browser interface and syncs with Kobo e-readers.
All 6 ebook managers, ranked
Select a column heading to sort. Approval share is recommenders out of everyone who gave an opinion; the tick on each bar marks the 2 to 1 line the badge needs. Months counts the months, out of 13, in which someone recommended it.
| Rank | |||||||
|---|---|---|---|---|---|---|---|
| 1 | Calibre | 107 | 15 | 88% | 13 | 10 yrs4 owners | Approved |
| 2 | Calibre-Web | 19 | 0 | 100% | 9 | — | Approved |
| 3 | Grimmory | 9 | 1 | 90% | 4 | — | — |
| Tied 4 | Kavita | 5 | 0 | 100% | 7 | — | — |
| Tied 4 | Send to Kindle | 5 | 5 | 50% | 5 | — | — |
| Tied 4 | Shelfmark | 5 | 0 | 100% | 4 | — | — |
How we rank
Rank is the number of separate people who recommend a product in a Hacker News comment over the past year. Someone who praises the same ebook manager in five threads counts once.
The badge goes to ebook managers that at least 10 people recommend, with recommenders outnumbering critics at least 2 to 1, recommended in at least 4 of the 13 months.
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