Announcing Arianna 1.0

I’m happy to announce the initial release of Arianna. Arianna is a small ePub reader application I started with Niccolo a few months ago. Like most of my open source applications, it is built on top of Qt and Kirigami.

Arianna is both an ePub viewer and a library management app. Internally, Arianna uses Baloo to find your existing ePub files in your device and categorize them.

Library view
Library view

The library view will keep track of your reading progress and find new books as soon as you download them.

If your book library is particularly big, you can either use the internal search functionality, or look through the various categories and find books grouped by genre, publisher or author.

Library search popup showing a few search results
Library search popup showing a few search results

Library grouped by authors
Library grouped by authors

The actual reader is quite basic as its only function is to show the content of the book. That said, it does have features like a progress bar to keep track of your reading progress and also lets you navigate within the book.

It is also fully navigable with the keyboard.

Ebook reader showing the book content
Ebook reader showing the book content

Another feature allows you to search within a book for a specific word.

Ebook reader showing the book content
Ebook reader showing the book content

Get it

Arianna will soon be available in Flathub (once the submittion is accepted). Please also ask your distribution to package Arianna.


This application would have not been possible without the previous work carried out by Foliate, from whom I copied and adapted the epub.js integration, and Peruse from whom I copied and adapted the library management code. Finally I would like to thank Šimon Rataj who made numerous contribution and fixed multiple bugs.

Arianna is also translated in multiple languages, thanks to some wonderful translators. Here is the alphabethically sorted list: Basque, British English, Catalan, Czech, Dutsch, Finish, French, German, Georgian, Hungarian, Interlingua, Mandarin, Portuguese, Slovak, Spanish, Turkish, Ukrainian and Valencian.

Get Involved

If you are interested in helping, don’t hesitate to reach out in the Arianna matrix channel ( and I will be happy to guide you.

I also regularly post about my progress on Arianna (and other KDE apps) on my Mastodon account, so don’t hesitate to follow me there ;)

And in case, you missed it, as a member of KDE’s fundraising working group, I need to remind you that KDE e.V., the non-profit behind the KDE community accepts donations.

Packager section

You can find the package on and it has been signed with my GPG key.


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