We have 4 streaming services at home: Netflix, Disney+, Prime Video, and Apple TV+. Try finding which films and series are actually available with Dutch audio.
Netflix has an audio browser at /browse/audio. Disney+, Prime Video, and Apple TV+? Nothing. You either click into every title individually to check the language options, or you guess from the cover art and pray.
With young kids, this gets old fast. You want to quickly put something on in Dutch, not spend ten minutes auditioning titles. With 4 platforms, you don’t even know where to start.
So I built streaming.ma.ttias.be : a single page that lists every movie and series with Dutch audio, across Netflix, Disney+, Prime Video, and Apple TV+. Plus VRT MAX and GoPlay, since this is for Belgium.
You can filter by platform, toggle between movies and series, and search by title. Click a poster, get a direct deeplink to the right streaming service.
How it works#
Data comes from three places:
- JustWatch ’s GraphQL API for the major platforms (including VRT MAX). No key needed.
- The Streaming Availability API on RapidAPI to fill in audio language gaps where JustWatch’s data is incomplete.
- GoPlay ’s public REST API for free Belgian content.
Titles are filtered for Dutch audio, deduplicated across sources, and stored in SQLite. A daily cron job refreshes the catalog. The frontend is a single HTML file. No framework, no bundler, no toolchain. Just HTML, CSS, and a bit of JavaScript.
The backend is Python + FastAPI. The whole repo fits in your head.
Vibe coded with Claude#
Full disclosure: this was mostly vibe coded with Claude over an evening. The goal was a useful browsing tool, not production-grade software.
The APIs have limitations, so the catalog isn’t perfect. Some titles slip through, others get false positives. But at a glance, it’s still much quicker than digging through four apps to figure out what’s watchable in Dutch.
There may already be something similar out there, I just couldn’t find it. This is aimed at the Belgian market specifically, the NL catalog likely differs per platform.
Fork it for your country#
The app filters by country + audio language. The README has a step-by-step for adapting it to, say, German audio in Germany or French audio in Switzerland. ISO codes, provider lists, country code in two places. Mostly search-and-replace.
Code is on GitHub , MIT licensed.