A simple and modern GTK eBook viewer, built with GJS and Epub.js.

Website: https://johnfactotum.github.io/foliate/

• View EPUB and Kindle files in two-page view or scrolled view
• Customize font, line-spacing, margins, and brightness
• Light, sepia, dark, and invert mode, or add your own custom themes
• Reading progress slider with chapter marks
• Bookmarks and annotations
• Find in book
• Quick dictionary lookup with Wiktionary, Wikipedia, and dictd, or translate text with Google Translate
• Touchpad gestures—use two-finger swipe to turn the page
• Basic text-to-speech support with eSpeak NG and Festival

• Arch Linux (AUR): foliate, foliate-git
• Fedora: sudo dnf install foliate
• Void Linux: xbps-install -S foliate

Auto-hyphenation is done using CSS hyphenation. To enable CSS hyphenation in WebKitGTK, you will need to install the hyphenation rules, e.g., hyphen-en for English, hyphen-fr for French, etc.

For offline dictionary support, install dictd.

For text-to-speech support, install espeak-ng, or festival, and packages for the individual voices.

For Mobipocket (.mobi) and Kindle File Format (.azw, .azw3) support, you would need Python (2.7 or >= 3.4).

The following dependencies are required for building:

• meson (>= 0.40)
• gettext

The following are runtime requirements:

• gjs (>= 1.52)
• webkit2gtk

To install, run the following commands:

meson build --prefix=/usr
ninja -C build
sudo ninja -C build install

To uninstall, run

sudo ninja -C build uninstall

The following commands will build Foliate and install it inside a directory:

meson build --prefix=$PWD/run
ninja -C build
ninja -C build install

To run the application, you'll need to set the schema directory for GSettings:

GSETTINGS_SCHEMA_DIR=$PWD/run/share/glib-2.0/schemas ./run/bin/com.github.johnfactotum.Foliate

sudo apt install build-essential debhelper meson gettext
dpkg-buildpackage -us -uc -nc

Foliate is available on Flathub.

Open Gnome Builder, choose "Clone Repository…", and follow the instructions. After cloning the project, hit Ctrl+F5 to build and run Foliate.

flatpak-builder --force-clean --install --user build com.github.johnfactotum.Foliate.json

Dictionary:

Annotations:

Find in book:

Dark mode:

Book metadata display:

Optional sidebar layout, with popup footnote:

Note: three JavaScript libraries are bundled in this software:

• Epub.js, which is licensed under FreeBSD. The included file is patched to fix #76 and futurepress/epub.js#942
• The minified version of JSZip, which is dual-licensed. You may use it under the MIT license or the GPLv3 license. See LICENSE.markdown
• A browserified version of Cheerio, which is licensed under MIT. The browserified version is produced by

npm install -g browserify
npm install cheerio
echo "window.cheerio = require('cheerio')" > index.js
browserify index.js > cheerio.js