kahoA tool to help you learn and to think.
Read your books, take notes that draw their own diagrams, and ask about the page you are on. Kaho answers beside the page and explains difficult ideas visually. Use your voice to ask questions or clarify doubts.
Read textbooks and Kaho Editions in your browser. Notes, Ask and voice are in the desktop app.
- Free to download and use
- No account needed to read and take notes
- Works offline with your own files
- Ask and voice send your question and the page to Google Gemini
- 1A textbook page
- 2Your question about its figure
- 3Kaho's answer, beside the page
Every page, sharp at every zoom.
Open a 500-page textbook or a whole shelf of novels. PDFs stay crisp at any zoom, and EPUBs are typeset by Kaho's own layout engine, with the book's fonts, illustrations and covers intact.
- Reader mode clears away every bar and button, leaving only the page.
- Split the window to keep the book and your notes side by side.
- Comics, scans and images open in the same reader.
Notes that draw.
Kaho is a Markdown editor where a fenced block becomes a picture. Sketch an idea as a Mermaid mind map, lay out a process with Graphviz, drop in hand-written SVG, and write the equation underneath. It renders as you type.
Never made a diagram like these? Don't worry. Ask Kaho's AI and it draws them for you.
Ask about the page you're on.
Stuck on a figure? Ask. Kaho's assistant reads what you are reading and answers right beside it, with the mathematics typeset properly, not flattened into plain text.
- Answers are grounded in the open document, page and figure.
- Replies are Markdown, so they can carry equations, tables and diagrams.
A library on the first launch.
Kaho ships with shelves you can open from the sidebar: NCERT's textbooks for every class from 1 to 12, Hindi literature in Kaho Editions, and public-domain classics from Standard Ebooks. One click and you are reading.
249 books, every class and every subject, in English and Hindi editions. Textbooks courtesy of NCERT, the National Council of Educational Research and Training.
Kaho Editions: Hindi classics by Premchand, Jaishankar Prasad, Nirala, Devaki Nandan Khatri and more.
Covers and editions by Standard Ebooks, dedicated to the public domain.
The Textbooks and Kaho Editions shelves also open in your browser. Open web library
Just say what you want.
Kaho means “say it” in Hindi. Press a shortcut and talk the way you would to a person beside you. Kaho opens the book, arranges the panes or answers the question, and shows you what it heard.
- Open the Sonnets I downloaded yesterday.open_document · Shakespeare_Sonnets.pdf
- Put my sonnet notes beside it.open_document · split right
- What is the volta in sonnet eighteen?answer · beside the page
Read. Write. Ask. Say it.
Kaho runs natively on macOS, Windows and Linux.
- Free to download and use
- No account needed to read and take notes
- Works offline with your own files
- Ask and voice send your question and the page to Google Gemini