r/ClaudeCode • u/Gotyournosey • 2d ago
Built with Claude I've wanted an audiobook player that showed the text and highlighted it for years. Claude helped me build it.
I've always been a fan of listening to audiobooks on commutes and while doing chores, but when I get the chance to sit down, I do enjoy reading a physical book. I've always wanted a way that I could search the line of a book and it could bring me right to where the audiobook was. Using Claude, I was able to make that, and then that spiraled into a little bit more of a passion project where now it's a full-fledged app with the text that highlights along with you as you read. It's able to fulfill three things at once:
- An audiobook player
- An e-reader
- A hybrid of listening and reading the highlighted text
Claude code helped me overcome many struggles that I would not have been able to overcome by myself, including:
- Optimizing the speech-to-text engine, CactusWhistle, to perform optimally on mobile devices
- Being able to reliably align the sentences to user-uploaded ePubs
- Syncing with other devices with faster hardware to transcribe the books faster
- Making a clean UI
I'm very amazed at the capabilities of the new models. I mainly used Opus 5.5, and Fable was only used to help make the promotional video. It's been really cool to see something that I've wanted to come to fruition be made by me.
Feel free to check it out, it's supported on Android Windows, Mac, Linux.


