LittlefoldGet early access

A little place for big books. See the whole book, then dive in.

Littlefold is a calm PDF reader with a visual book map, notes beside the page, and a small cat who keeps you company.

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Find your way through any book, and keep your thoughts beside the page.

The book map for “The Art of Paying Attention”: the contents page, then chapter 1, Making room, pages 3 to 7, and chapter 2, Following a thread, pages 8 to 12. Read pages are checked and page 4 is selected.

Pages sit under their chapter titles, and the ones you’ve read are checked off. Zoom into a page, then back out again.

Meet Mocha. One more page, a little more home.

A small cat keeps you company while you read. Reading fills Mocha’s bowl and earns coins for food and furnishings, so the room becomes a little more yours over time. The companion is optional: Littlefold is a complete reader without it.

The same room at night, with Mocha asleep in the cushioned bed and a lantern-lit garden outside.
Mocha sitting on a leaf-patterned rug in a daylight room with a cat tree, a cushioned bed, plants, a bookshelf, and food bowls.
Mocha’s room, by day and by night. Drag to compare.

Built for the books that take more than one sitting.

Book map

Book map of “The Art of Paying Attention”: chapter 1, Making room, pages 3 to 7, and chapter 2, Following a thread, pages 8 to 12. Read pages are checked, highlighted passages show in yellow and green, and page 4 is selected.

Reference peek

Preview of page 3, “A place to begin”, opened from a link on page 4.

Highlightsgrouped by chapter

Highlights panel listing a passage from page 4 under “1. Making room”, with one highlight each under chapters 2 and 3.

Notesbeside the page

Page 4, “A little space to think”, with its first passage highlighted in yellow. Beside it, a book note titled “Small things to remember”.

Mocha at play

Pick up where you left off

Continue reading card for “The Art of Paying Attention”: chapter 1, Making room, page 4 of 22, 18 percent read, with a “Resume at p. 4” button. Below, four books in the library.

The small things, taken care of.

  • Made for PDFs

    From long nonfiction to technical manuals.

  • Bring your own books

    Add PDFs from your computer, then search and map them.

  • Stays on your computer

    Books, highlights, notes, and progress stay with the app.

  • Company, if you like

    Mocha is optional. Littlefold is a complete reader without it.

Questions, answered.

Which file formats are supported?

PDF. Littlefold is built around PDFs, from long nonfiction to technical manuals. Other formats, such as EPUB, are not supported.

Which operating systems and Macs are supported?

Littlefold is a desktop app. We’ll list the supported macOS versions, and whether builds cover Apple silicon and Intel Macs, as soon as each build has been tested.

Can I bring my own PDFs?

Yes. Add PDFs from your computer to your library, then search them, map them, and read them in Littlefold.

Is the cat companion optional?

Yes. Mocha is there if you’d like a little company. Littlefold works as a complete reader without it.

Where are my books and reading data stored?

Littlefold doesn’t offer cloud sync. Your books, highlights, notes, and progress stay with the app on your computer.

What does it cost, and how does early access work?

Pricing hasn’t been decided yet, and we’ll publish it here first. To join early access, send us a note using the button on this page and we’ll get in touch when a build is ready for you.

Make a little room for your next book.

Send us a short note and we'll write back when there's a build for you to try.

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