✳ VALIDATOR · DISCORD
Subtitle validator for Discord
Pick a subtitle file. Koldflux reads metadata locally and reports PASS / WARNING / FAIL / UNKNOWN against Discord. 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 Discord accept this extension)
- File size vs. Discord max
- Aspect ratio vs. Discord recommended
- Caption character and duration limits
Convert a failing file in one click: /tools/convert
Automate this in Koldflux