Hikara vs LibraryThing: connecting books vs cataloguing them
LibraryThing is a free cataloguing site that pulls book records from Amazon, the Library of Congress and thousands of other libraries, with a powerful tagging system. Hikara is a reading tracker that uses AI to find how the books in your library connect. One catalogues a collection; the other maps its ideas.
LibraryThing is built for cataloguing a collection in depth. Hikara is built for seeing how the books you read connect.
Updated LibraryThing details checked By Hikara Team
Side-by-side comparison
| Criterion | Hikara | LibraryThing | Edge |
|---|---|---|---|
| Connections between your books | Found by AI, labelled echo, challenge or bridge, scored 0–100 | No equivalent | |
| Catalogue records | Google Books and Open Library | Amazon, the Library of Congress and thousands of other libraries | |
| Organising | Statuses, ratings and custom shelves, including rule-based smart shelves | Free-form tags and collections | |
| Reading habit tools | Session log, streaks with freeze credits, goals, pace insights | Not its focus | |
| Import from Goodreads | Yes, from the Goodreads export | Yes, matched by ISBN | |
| Price | Free plan; Basic $3.49/mo; Premium $6.99/mo | Free, with no book limit and no ads |
Where Hikara wins
- Finds connections between your books, which a catalogue doesn't try to do.
- Reading habit tools: sessions, streaks with freeze credits, goals and pace.
- Vibe search, the gap finder and Dialogues.
- Highlights from a photo of the page, with one resurfaced each day.
Where LibraryThing wins
- Library-grade records from the Library of Congress and thousands of other libraries.
- A deep tagging system and collections.
- Free, with no limit on books.
- A long-established community of cataloguers.
When LibraryThing is the right choice
We're biased — Hikara is our product. Here's an honest list of when LibraryThing is genuinely the better fit, and you should pick it instead.
- You want a detailed catalogue of a physical collection.
- You organise with many precise tags.
- You want everything free, with no paid tiers at all.
Frequently asked questions
Is LibraryThing free?
Yes. LibraryThing dropped its membership fees and its book limit in March 2020, and says it won't add ads.
Can I use Hikara alongside LibraryThing?
Yes. Keep LibraryThing as your detailed catalogue and use Hikara for tracking reading and seeing connections. Hikara's importer reads the Goodreads export format, so the easiest route is a Goodreads export; otherwise add books by search or from a screenshot.
Does Hikara have tags like LibraryThing?
Not in the same way. Hikara organises with statuses, ratings, custom shelves (including smart shelves that fill themselves from rules) and the themes it detects, rather than free-form tags.
What are echoes, challenges and bridges?
They're the three kinds of connection Hikara's AI finds between two books. An echo is two books that reinforce the same idea; a challenge is two books that disagree or pull against each other; a bridge links books from different fields. Each connection also gets a strength score from 0 to 100.
See how your own books connect
Import your Goodreads export or add books one by one, and Hikara starts finding the echoes, challenges and bridges between them. The free plan needs no card.