Read Flow Read Flow Read Flow organizes and reads your e-book and PDF library across all your devices — locally, privately, and on your terms.
PDFs and EPUBs pile up across laptops, phones, and download folders — duplicated, untagged, and disconnected from whatever cloud reading app you tried last. Read Flow scans the folders you already have, fingerprints and de-duplicates what it finds, and gives you one library that follows you across every device — without sending your files anywhere.
Read Flow scans your document folders and fingerprints every file with SHA-256, so duplicates are caught even if they were renamed or copied.
Organize your library with tags, and define rules that tag documents automatically as they are discovered.
Mark documents Unread, Reading, or Read, and pick up exactly where you left off — kept in sync across your devices.
Aggregate libraries from more than one Read Flow server into a single view, from the PWA or the Cosmic desktop app, with reading progress synced across all of them.
A native PDF viewer renders your documents directly in the app — no external tools needed.
A native EPUB reader renders your e-books directly in the app — no external tools needed.
Search and pull public-domain titles straight from catalogs like Project Gutenberg and Standard Ebooks.
A native app for Linux and macOS. Browse, read, tag, and manage scan folders from a GUI.
Run the same app without a UI on a home server or NAS, so the web app can connect over your network.
A browser-based reader with fuzzy search and offline-capable reading, installable to any device. Can aggregate multiple Read Flow servers as sources.
Prebuilt binaries for Linux (deb, tarball, Flatpak) and macOS (Apple Silicon).