Folio

A SPACE TO THINK

A little more
understanding.

Your books, your questions, and a canvas to explore them. Read closely. Make an idea visible. Keep what clicks.

Download FolioTake a closer look ↓

v1.0.0-beta.4 · Windows / macOS / Linux · Beta

Folio reading workspace and interactive canvas.
Your reading, with room to explore.Actual app · Illustrative document

THE READING WORKSPACE

Stay with the idea.

From the page to the picture, and back again.

01 / READ

A home for your books.

Connect a local folder or import PDFs and text. Find your place with a library, favorites, and recent reading.

02 / EXPLORE

Give an idea a shape.

Bring a passage into the canvas. Explore explanations, concept maps, and supported group-theory and 3D experiments.

123

1, 2, 3

03 / KEEP

Keep the connection.

Highlight, underline, and leave a comment. Save an explanation with its book and page, then return to the source.

LOCAL FIRST. YOUR CHOICE.

Your library.
Your space.

Your books and notes live on your device. Connect your own model service when you want AI alongside you.

  • No Folio account needed to start reading.
  • API keys stay in memory, or are encrypted locally when you choose to save them.
  • AI requests send the question and relevant source context to your chosen service.
  • Automatic conversation notes are optional and off by default.

AI needs your own API key. Model usage is billed by your provider. This website uses no analytics or advertising cookies.

Folio app icon

FOLIO FOR YOUR DESKTOP

Make room for
your next idea.

Beta releases; no automatic updates. Windows is unsigned. macOS is not Apple-notarized and Gatekeeper may block first launch. The Linux package has passed installation and launch checks on Ubuntu 22.04 x64.

Release notes & checksums ↗

A FEW THINGS TO KNOW

Before you begin.

How do I get started?

Windows: run the EXE and choose an installation folder and optional desktop shortcut. macOS: open the DMG for your chip and drag Folio into Applications. Linux: open the DEB with your software installer, or run sudo apt install ./Folio-1.0.0-beta.4-linux-x64.deb. Connect your document folder, then paste your own API key in Settings if you want AI.

Can I use it without AI?

Yes. Reading, the local library, annotations and notes work without a model key. AI explanations and generated concept maps need your own model service.

What does this beta support?

PDF, TXT and Markdown, with Chinese and English interfaces. Text-based PDFs support passage selection; scanned pages do not have OCR yet. The 3D experiment covers tetrahedral rotations, not arbitrary generated scenes. Windows, macOS and Linux betas are available. Zotero sync is not available yet.

How do I update or send feedback?

Close Folio before updating: run the new Windows installer, replace the macOS app in Applications, or install the newer Linux DEB. Removing the application keeps personal documents, notes and settings. Export important notes regularly. For problems or suggestions, open an issue on GitHub. Avoid posting private documents or API keys.