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Libyx
Read any book in your language — EPUB & PDF, 57 languages
Drop in an EPUB or PDF, pick a language, get a finished EPUB back. Libyx runs on your own machine with your own API key — no account, no upload, no subscription. What's different: a glossary pass reads the whole book first, so names, invented terms and the author's voice stay consistent to the last chapter. A cheap model scores every chapter, and only the weak ones go to an expensive one for polish. Batch mode halves the cost. 57 languages, Mac and Windows.
Hi Product Hunt 👋
I built Libyx because a book I wanted to read didn't exist in my language, and it probably never will. Machine translation of a whole book has been possible for a while now — it just wasn't packaged for readers.
So: you drop in an EPUB or a PDF, pick a language, pick a model, and get a proper EPUB back. It runs entirely on your own machine with your own API key. No account, no upload, no subscription — you pay your AI provider directly, and Libyx shows you the estimated cost before anything starts.
What took the longest wasn't the translating. It was everything around it:
- A glossary pass reads the whole book first, so character names, invented terms and the author's voice stay consistent from chapter one to the end.
- A cheap model scores every chapter, and only the weak ones get sent to an expensive model for polish. Same quality, roughly a third less cost.
- Batch mode uses the providers' batch APIs for a 50% discount. The app doesn't need to stay open.
- 57 target languages, including regional splits that actually matter — Simplified vs Traditional Chinese, Bokmål vs Nynorsk, pt-BR vs pt-PT, Serbian in both scripts.
Mac and Windows, free to use. I'd love to hear which books you throw at it — and where it breaks.
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About Libyx on Product Hunt
“Read any book in your language — EPUB & PDF, 57 languages”
Libyx was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #121 on the daily leaderboard. Drop in an EPUB or PDF, pick a language, get a finished EPUB back. Libyx runs on your own machine with your own API key — no account, no upload, no subscription. What's different: a glossary pass reads the whole book first, so names, invented terms and the author's voice stay consistent to the last chapter. A cheap model scores every chapter, and only the weak ones go to an expensive one for polish. Batch mode halves the cost. 57 languages, Mac and Windows.
Libyx was featured in eBook Reader (5.3k followers), Artificial Intelligence (478.1k followers) and Books (122.7k followers) on Product Hunt. Together, these topics include over 133.1k products, making this a competitive space to launch in.
Who hunted Libyx?
Libyx was hunted by S M. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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S M