Ready to Read Smarter?
Join thousands of readers who've transformed how they study. Free forever. No credit card needed.
Everything You Need to Read & Study
A complete suite of reading, annotation, translation, and study tools — all free, all beautiful.
PDF Canvas Engine
Butter-smooth rendering with zoom, continuous scroll, and dual-page book view.
Smart Highlights
Multi-color highlights with auto-export. Organize by color, tag, or chapter.
Instant Translation
Tap any word for English & Hindi meanings with native pronunciation audio.
3D Flashcards
Spaced repetition with SM-2 algorithm. 3D flip cards that make vocabulary stick.
Margin Notes & Pen
Write directly on PDF pages with pen, marker, sticky notes, and text tools.
Natural Read-Aloud
Human voice read-aloud with speed control. Listen to books while multitasking.
Document Conversions
Convert between PDF, DOCX, EPUB, and plain TXT with layout fidelity.
Reading Analytics
Track pages read, time spent, vocabulary growth, and daily reading streaks.
Offline Library
Download books for offline study. Annotations sync seamlessly when reconnected.
READ
Dive deep into any book or PDF with distraction-free clarity, natural page turns, and crystal-clear typography.
“A reader lives a thousand lives before he dies.” — George R.R. Martin
LEARN
Highlight meaningful passages, make margin notes directly on PDF pages, and organize ideas into your personal knowledge bank.
“Knowledge becomes wisdom only when put into your own words.”
REMEMBER
Listen with natural read-aloud audio, review your study notes, and master what you read forever.
Active Readers Around the World
Try the Word Meaning & Flashcard Tools
Hear natural word pronunciation, explore English & Hindi meanings, and practice with 3D memory flashcards.
Pronunciation & Meanings
Natural Voice Audio • English & Hindi
Ephemeral
/ɪˈfem.ər.əl/Lasting for a very short time; transitory; fleeting.
3D Memory Flashcard
Spaced Repetition • SM-2 Algorithm
Ephemeral
/ɪˈfem.ər.əl/ • adjective
Lasting for a very short time; transitory; fleeting.
Click to flip back • Rate your memory below
Frequently Asked Questions
Learn how Granthiva helps you read PDF and EPUB books online, take study notes, and build vocabulary.
What is Granthiva?
Granthiva is an online book reader and study workspace. You can read PDF and EPUB books, save your files in a digital library, make notes, look up words, and study with flashcards.
How can I read a PDF online for free?
Open Granthiva in your browser and add your PDF to the library to start reading online. The PDF reader works on your device, and you can use reading tools such as highlights and notes.
Is Granthiva free to use?
Yes. You can use Granthiva to read and study for free. Some optional account or Pro features may have separate requirements, which are shown in the app.
Can I read EPUB books online with Granthiva?
Yes. Granthiva supports EPUB books as well as PDF files, so you can keep your ebooks together in one online reading library.
Can I highlight a PDF and take notes while I read?
Yes. Granthiva lets you highlight useful passages and add notes to your reading. These PDF study tools help you keep important ideas easy to find later.
How can I find a word meaning while reading?
Look up a word in Granthiva to see its meaning while you read. English and Hindi meaning details are available for supported words. Save useful words to your vocabulary list to review them later.
Can I study English words with flashcards?
Yes. Save new words to your Granthiva word bank, then practice them with vocabulary flashcards. Review sessions help you revisit words over time.
Can I listen to a book while reading?
Yes. Granthiva includes read-aloud tools for supported reading content, so you can listen while following along on the page.
Can I use Granthiva on my phone or tablet?
Yes. Granthiva runs in a web browser and its reading tools are designed for desktop, tablet, and mobile screens. Sign in to use supported syncing features across devices.
Loved by thousands of daily readers
From medical students and researchers to book lovers and polyglots — see why readers love Granthiva.
“Comparing 3 NCERT history and polity PDFs side-by-side with split screen saved my preparation. Being able to highlight and directly export key definitions to flashcards is a lifesaver.”
“Reviewing research papers with LaTeX math formula rendering and side-by-side cross analysis is flawless. It completely replaced Adobe Acrobat and Mendeley for my daily paper readings.”
“I read 40+ programming & system design e-books a year. The instant continuous scroll with zero canvas lag even on 1,200-page O'Reilly PDFs makes this the best reader on the web.”
“Built my 900-word GRE vocabulary directly while reading classic novels. The spaced-repetition flashcards pop up right when I'm about to forget a word. My verbal score jumped 8 points!”
“Comparing 3 NCERT history and polity PDFs side-by-side with split screen saved my preparation. Being able to highlight and directly export key definitions to flashcards is a lifesaver.”
“Reviewing research papers with LaTeX math formula rendering and side-by-side cross analysis is flawless. It completely replaced Adobe Acrobat and Mendeley for my daily paper readings.”
“I read 40+ programming & system design e-books a year. The instant continuous scroll with zero canvas lag even on 1,200-page O'Reilly PDFs makes this the best reader on the web.”
“Built my 900-word GRE vocabulary directly while reading classic novels. The spaced-repetition flashcards pop up right when I'm about to forget a word. My verbal score jumped 8 points!”
“Medical textbooks are 1,500+ pages. Granthiva loads them in a second without crashing. The instant Hindi & English medical definitions without switching browser tabs keeps my focus intact.”
“Annotating supreme court opinions on my tablet in the morning and having everything synced to my laptop in seminars is seamless. The freehand pen toolbar feels completely natural.”
“The Two-Page book view with warm sepia mode feels just like opening a physical hardcover novel. Reading dual-language translations side by side has cut my analysis time in half.”
“Studying 6 massive CFA curriculum books requires serious note-taking. The true OLED black theme is a blessing for 3-hour late night study sprints. Zero eye fatigue.”
“Medical textbooks are 1,500+ pages. Granthiva loads them in a second without crashing. The instant Hindi & English medical definitions without switching browser tabs keeps my focus intact.”
“Annotating supreme court opinions on my tablet in the morning and having everything synced to my laptop in seminars is seamless. The freehand pen toolbar feels completely natural.”
“The Two-Page book view with warm sepia mode feels just like opening a physical hardcover novel. Reading dual-language translations side by side has cut my analysis time in half.”
“Studying 6 massive CFA curriculum books requires serious note-taking. The true OLED black theme is a blessing for 3-hour late night study sprints. Zero eye fatigue.”
“I read literature in Spanish, French, and English. The natural audio text-to-speech pronunciation is astonishingly human. I listen while walking and switch back to reading seamlessly.”
“Cross-referencing Income Tax Acts with GST circulars was a nightmare of 10 open tabs. Now I pin 4 PDFs side-by-side in one window and search across all of them together.”
“I create primary-source reading packets for my students. The ability to annotate directly on historical documents and export clean study decks has transformed my classroom lessons.”
“All my books and notes stay private in my own browser — no mandatory cloud lock-in. Granthiva combines the power of Anki, Kindle, and Acrobat into one clean web app.”
“I read literature in Spanish, French, and English. The natural audio text-to-speech pronunciation is astonishingly human. I listen while walking and switch back to reading seamlessly.”
“Cross-referencing Income Tax Acts with GST circulars was a nightmare of 10 open tabs. Now I pin 4 PDFs side-by-side in one window and search across all of them together.”
“I create primary-source reading packets for my students. The ability to annotate directly on historical documents and export clean study decks has transformed my classroom lessons.”
“All my books and notes stay private in my own browser — no mandatory cloud lock-in. Granthiva combines the power of Anki, Kindle, and Acrobat into one clean web app.”
PDF BOOK READER & NOTES MAKER
Read PDF books effortlessly, highlight key points, and make notes directly on any page. A clean, distraction-free book reader for students, researchers, and book lovers.