Duplo

Your unified digital bookshelf, where you can upload your highlights and notes across Kindle and Kobo devices, including any side-loaded content.

Switching from Kindle to Kobo, I wanted to have my own repository of highlights & notes made while reading.

I tried some available alternatives out there, but none really checked all my boxes: they either couldn´t handle side loaded content, or couldn´t set up the bookshelf by drag & dropping the order of the books like my actual bookshelf at home, or simply were too expensive for me.

So I built this webapp exactly for that. It is free to use, the only locked feature behind a (quite cheap) subscription is the option to upload cover images for the book cards, but the core value of searching across devices is free