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Foliole

Make reading actually complete.
An approachable incremental reading app.

Alpha builds are available for macOS, Windows, and Linux (experimental).
Android and iOS builds are expected in August.
You can also try Foliole with the online demo.

Online Demo

Open the online demo

An interactive local browser demo for trying Foliole without installation.

Demo Clip

Watch the demo clip on YouTube

Design Principles

Open Source

The code is open source. Anyone can review the implementation, build it from source, or contribute improvements.

Open Data

Uses a SQLite database and provides a Markdown mirror, making materials easier to read, migrate, and reuse.

Local First

No account system. No central cloud sync. All data stays on your personal devices; devices sync over the local network.

Core Features

Native Incremental Reading

Built around Piotr Woźniak’s incremental reading ideas, with a native workflow for extracting passages, creating cloze deletions, and refining materials without leaving the reading flow.

Integrated FSRS Scheduling

Integrates FSRS (Free Spaced Repetition Scheduler), an open and efficient review scheduling algorithm.

Bring Reading Materials Together

Handles reading materials from different sources, whether local files, web documents, notes managed in Obsidian, materials exported from Readwise Reader, or selected text captured from other apps.

Index External Documents

Indexes other local folders on your computer without copying or moving the original files, creating an external document library that can be searched, viewed, and used across supported clients.

Complex Content Support

Supports Markdown, PDF, EPUB, LaTeX math, code blocks, and other content rendering needs.

Command-Line and Agent Workflows

Lets Terminal and local agents read, write, and organize materials in Foliole, while Foliole Aide brings Codex directly into the app using the allowance included in your ChatGPT plan.

Publish Evolving Topics

Turns evolving Topics into content you can continue to update on your own site, WordPress, or Discourse.

Building from Source

See the build guide for macOS, Windows, Linux, Android, and iOS. For everyday use, start from a published release tag; dev contains unreleased changes that may affect normal use.

Acknowledgements

Special thanks to Piotr Woźniak and Jarrett Ye. Without SuperMemo, incremental reading, and FSRS, Foliole would not exist.

Many thanks to the following open-source projects, components, and communities:

• better-sqlite3
• Capacitor
• CodeMirror 6
• Drizzle ORM
• Electron
• Linux.do
• React
• SQLite
• TypeScript
• Vite