ookItLearn English by reading books
Open an English book, article or PDF right in your browser. Tap any word you don't know and LookItUp shows the meaning that fits your sentence, in simple English and in your language, so you keep reading instead of stopping to search.
Open a PDF and start readingFree · No account · Your file never leaves your browser
How it works
- Open your bookChoose a PDF, EPUB, Word or text file, or drop it on the page. It opens right in your browser.
- Tap a wordSee the meaning that fits the sentence, a simple English explanation, its level and how to say it.
- Keep readingChange the background, font and text size so long chapters stay easy on your eyes.
Why reading is the best way to learn vocabulary
- Words in contextYou learn what a word means in this sentence, not a list of ten possible translations.
- Real EnglishBooks and articles use the words people actually write, from everyday phrases to C1 vocabulary.
- Your level, your topicsRead what you enjoy: novels, textbooks, papers or work documents. Interest keeps you reading.
- No stoppingOne tap instead of switching to a dictionary app keeps you in the story.
What you can read
Text-based PDFs, EPUB e-books, Word (DOCX) and PowerPoint (PPTX) files, and plain text. Scanned pages need selectable text first. Your files are read on your device: LookItUp never uploads them.
Questions
Is LookItUp free?
Yes. The reader on lookitup.app is free and needs no account or sign-up.
Is my book uploaded anywhere?
No. Your file is opened inside your browser and stays on your device. Meanings come from LookItUp's own dictionary.
Which languages can I see meanings in?
Turkish, Spanish, French, German, Italian and Japanese, plus a simple English explanation for every word. Books should be in English.
Can it translate a whole book?
LookItUp helps you read the original: it explains each word where you meet it, which is how new words stick.
Does it work on my phone?
Yes, in your phone's browser. The LookItUp app for iPhone and iPad, with saved words and practice cards, is coming soon to the App Store.
Which level do I need?
Any level from about A2. Each meaning shows its level (A1 to C2), so you can see which words are worth learning first.
Looking up one word? Try the Simple English dictionary
Kitap okuyarak İngilizce öğrenAprende inglés leyendo librosApprendre l'anglais en lisantEnglisch lernen mit BüchernImparare l'inglese leggendo libri洋書を読んで英語を身につける