✳ VALIDATOR · APPLE PODCASTS
Subtitle validator for Apple Podcasts
Pick a subtitle file. Koldflux reads metadata locally and reports PASS / WARNING / FAIL / UNKNOWN against Apple Podcasts. Nothing uploaded.
Extension and MIME type are labels, not proof of the container. Dimensions and duration come from this browser's media reader. Files and measurements are not sent anywhere.
What this checks
- Container compatibility (does Apple Podcasts accept this extension)
- File size vs. Apple Podcasts max
- Aspect ratio vs. Apple Podcasts recommended
- Caption character and duration limits
Convert a failing file in one click: /tools/convert
Automate this in Koldflux