Tap any word in whatever you're reading, whether it's a fantasy novel, a light novel, a classic or a textbook, and see what it means in that sentence. Save the ones you want to keep and review them later as flashcards.
Example lookups, written in advance to show the idea. In the reader, Claude explains words from your own text.
We sat on the of the river and watched the water slide by.
She went to the before it closed.
Her words a hope he thought was long dead.
If it's in English and you can open it as an EPUB or text file, or paste it in, it works. No special library, no limits on what you read.
English-language text only for now. Copy-protected (DRM) files can't be opened.
Choose an EPUB or text file, or paste a chapter. Your book stays on your device.
Get its meaning in that sentence, with a pronunciation button and a plain-English explanation of the whole sentence if you want it.
Save words with their sentence, then review them as flashcards that come back just before you'd forget.
Enjoy novels, light novels and nonfiction without leaving the page. Meanings fit the sentence, so figurative language and old-fashioned words make sense.
Choose your own language and get a translation of the word as used in the sentence, plus simpler or more detailed explanations.
Books you open stay in your browser on your device. Only the word you tap and a short passage around it are sent to get an explanation.
Any English-language text: novels, light novels, classics, nonfiction, textbooks, articles, or a chapter you paste in. You bring the book, and it stays on your device.
EPUB and plain text files, or text you paste in. Files with copy protection (DRM) can't be opened.
No. They come from an AI model and can be wrong, especially for rare words, names, or unusual wording. Treat them as a helpful guide.
Not yet. Saved words and progress live in this browser, so clearing your browser data will erase them. Export your words as a CSV to keep a copy.
It's a free beta with a daily lookup limit. Paid plans may come later; nothing is charged now.
No account needed. Open a book and tap your first word.
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