AI Summary
Understand long PDFs before you listen
Get the gist first, then decide whether to listen to the whole document.
Open a PDF and Lullula reads it aloud — research papers, textbooks, reports — with live sentence highlighting so your eyes never lose the line.
Free · No account needed · Works with selectable-text PDFs · Scanned PDFs need OCR first
Install Lullula, open a text-based PDF, and press play.
Add the free extension from the Chrome Web Store (Chrome, Edge) or Firefox Add-ons.
Use a PDF from the web or a local text-based PDF file.
Lullula reads the PDF aloud, highlights each sentence, and saves your place.
Lullula works best with PDFs that contain real, selectable text.
Research papers, reports, textbooks, manuals, and downloaded articles usually work well when you can select and copy the text.
If your PDF is just images of pages, Lullula needs an OCR text layer before it can read it aloud.
Get through journal articles and preprints by ear — and follow the highlight to stay with the argument.
Listen to chapters while you commute or review, and resume exactly where you stopped.
Turn long PDFs and whitepapers into audio you can absorb hands-free.
Hear natural pronunciation in 80+ languages while reading the page along.
Get the gist first, then decide whether to listen to the whole document.
Your browser can show a PDF, but it can't read it to you the way Lullula does.
Lullula reads PDFs that contain real, selectable text. Image-only scanned PDFs without an underlying text layer can't be read aloud until they've been run through OCR.
Yes. Lullula handles long documents like research papers, textbooks, and reports, and remembers where you stopped so you can pick up where you left off.
600+ natural neural voices across 80+ languages, with adjustable speed from 0.5× to 2×.
Lullula doesn't sell your data or track your browsing history. When you choose to generate audio or an AI summary, the selected PDF text is sent to our servers only to create the voice or summary. See our Privacy Policy for details.
Try selecting a sentence in the PDF with your mouse. If you can highlight and copy the text, Lullula can usually read it aloud. If you can only select the whole page as an image, the PDF likely needs OCR first.
Yes. Open a local PDF in your browser and Lullula reads text-based PDFs aloud. Some browsers need you to allow the extension access to local file URLs first.
Yes. Lullula is useful for journal articles, preprints, research papers, and technical PDFs, especially when you want to follow along with sentence highlighting.
Yes. Press play and listen hands-free while commuting, walking, cooking, or reviewing material away from the screen.
Lullula also reads web pages aloud and EPUB e-books aloud.
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