Folio is a notebook and eReader for pen tablets. Write with brushes that answer to pressure, sketch on an infinite canvas, and mark up your PDFs and EPUBs. Everything stays on your device.
Free and open source for Android tablets. A Google Play release is on the way.
Twelve brushes, from ballpoint and fountain pen to 2H–6B pencils, chalk, spray and a bristle paint brush. Shape how pressure, speed and tilt change each stroke with curves you edit by hand.
Start a notebook with one of 35 page templates, from lined and Cornell to Kanban and music staff, or open an infinite canvas with pins and a minimap to find your way back.
Open PDFs and EPUBs next to your notes. Highlight, underline, write in the margins and keep a notebook beside the book in study view.
A few minutes after you close a note, Folio saves a verified copy to a folder you choose and keeps daily, weekly and monthly versions.
Deleted notebooks, folders and books wait in Trash for 7 or 30 days before they go.
Six colours and four folder styles, with drag and drop between them.
Search notebook names, typed text, tags, outlines, book titles and authors.
Export pages as PDF or PNG, or a whole notebook as an editable .folio file.
Pick an accent colour, corner style, grid or list, and the toolbox set you use most.
Folio has no account and no cloud. Your notes and books stay on your device, backups go to a folder you pick, and you can open them anywhere.
Folio is in active development. Build it from source today, or watch the repository for the first release.
Open the repository