Give every book its own space, link ideas across everything you’ve read, and keep a shelf that maintains itself.
Highlights die in the app you made them in, and summaries never get written. Arythmatic Notes gives each book a home — quotes, chapter notes, and takeaways in one tidy tree — with backlinks that connect an idea in chapter 3 to one you met last year, and a reading tracker you’ll actually keep up.
Quotes, chapter notes, and takeaways in one tidy, nested tree.
Wiki links and backlinks tie this book’s ideas to every note you’ve ever taken.
Track your reading in a collection — table, board, gallery, or calendar view.
Select any passage and let AI summarize it, unpack it, or question you on it.
Turn your best highlights into a public website, or export a beautifully branded PDF.
Full-text search across every book you’ve ever taken notes on.
Yes — import Markdown, HTML, Word (DOCX), or text files directly, or a whole ZIP as a page tree. Clippings paste in cleanly too.
Use a collection as your shelf: table, board, gallery, or calendar views with status, rating, and any fields you like. Each row links to that book’s space.
Yes. Share individual pages with friends, publish favorite highlights as a public site, or export branded PDFs. Everything stays private until you choose otherwise.
Free to start, no credit card required. Bring your team when you're ready.
Free forever for individuals · No credit card required