FolioThread

FolioThread is a private, offline-first reading workspace for people who want more from ebooks than a list of highlights. Import EPUB, PDF, TXT and Markdown files with Android's system file picker, then keep reading without an account or internet connection. FolioThread copies selected books into its private app storage so your library remains available offline. Read and remember • Resume from your latest reading position. • Highlight passages and add notes in EPUB, TXT and Markdown books. • Add page-level notes and bookmarks to PDFs. • Search readable text inside supported text-based books. • Adjust the reading appearance to suit your screen and preferences. Connect ideas with Threads Threads are FolioThread's defining feature. Create a topic, question or idea, then connect related annotations from different books. Open a linked note to jump back to its original source position. Instead of keeping isolated highlights in separate books, you can build a trail of ideas across your library. Designed for focused reading FolioThread uses a calm editorial interface, supports light and dark themes, adapts to phones and larger screens, and includes Reduce Motion and optional haptic feedback. Local-first by design • No account • No ads • No analytics • No cloud sync • No internet permission • No broad storage permission Your original files stay where they are. Removing a book from FolioThread deletes the app's private copy and its local reading data for that book.