✳ CAPTIONS · YOUTUBE (LONG-FORM)
Burned-in captions captions for YouTube (long-form)
Caption QA + YouTube (long-form) compatibility. Drop a Burned-in captions file to validate it against YouTube (long-form)'s caption rules. Stays on your device.
YouTube (long-form) · accepts Burned-in captions directly · has closed-caption support
Text rendered directly into the video frames - never falls off, cannot be turned off by the viewer.
What this checks
- Format auto-detection (SRT vs WebVTT) and parse errors
- Per-cue reading speed (warnings above 21 chars/sec)
- Negative timestamps and zero-duration cues
- Cue overlap and ordering
- Closed-caption support: YES
After validating, create all platform versions in the Creator: /tools/pack
Automate this in Koldflux