AudiobookLoader

Frequently asked questions

Is this safe? Will it break my Yoto account?

AudiobookLoader uses Yoto's official OAuth API — the same one the official app uses. It can only create and manage content you upload through this tool. It cannot delete your existing cards or access your account details.

What audio formats are supported?

MP3, M4A, M4B, FLAC, OGG, and WAV. Yoto transcodes everything server-side, so you can upload in any format.

I bought an audiobook from Libro.fm. Can I use it here?

Yes! Libro.fm audiobooks come as DRM-free MP3 files. If your download includes one MP3 per chapter, just drag the folder in — each file becomes a track automatically. If it's a single MP3 of the whole book, use the Split button to chop it into chapters by silence detection.

Does my audio go through your servers?

No. Your files are uploaded directly from your browser to Yoto's servers. AudiobookLoader has no backend — it's a static web app. We never see your audio.

I have a single M4B file. How does that work?

M4B is a format used by some audiobook sources that bundles all chapters into a single file. Just drop the M4B onto AudiobookLoader — it automatically detects the embedded chapter markers and lets you split them into separate Yoto tracks with one click.

What is silence-based splitting?

If you have a single long audio file without chapter markers, AudiobookLoader can analyse the audio for silent gaps and suggest split points. This uses ffmpeg running entirely in your browser — no upload required. The resulting chapter titles will be generic ("Chapter 1", etc.) and can be renamed before sending to Yoto.

What are the Yoto limits?

Each track must be under 100 MB and under 60 minutes. A playlist can have up to 100 tracks, up to 500 MB total, and up to 5 hours total. AudiobookLoader shows warnings when you exceed these limits.

Can I use this on my phone?

The web app is optimised for laptop/desktop. Phone browsers often restrict local file access in ways that make drag-and-drop unreliable. If you need mobile support, use the official Yoto app.