✳ CAPTIONS · LINKEDIN
WebVTT captions for LinkedIn
Caption QA + LinkedIn compatibility. Drop a WebVTT file to validate it against LinkedIn's caption rules. Stays on your device.
LinkedIn · accepts WebVTT directly · has closed-caption support · post-text limit 700 characters
Sidecar .vtt file with timestamps; required by HTML5 <track>.
Source: https://www.linkedin.com/help/linkedin/answer/a548372/video-sharing-troubleshooting?lang=en · Verified 2026-09-12
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
- LinkedIn post-text character limit (700)
- Closed-caption support: YES
After validating, create all platform versions in the Creator: /tools/pack
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