Validate & auto-sort YouTube chapter timestamps for video descriptions.

YouTube chapter rules

  • Minimum 3 chapters
  • First chapter must start at 0:00
  • Each chapter at least 10 seconds long
  • Format: M:SS Title or HH:MM:SS Title

FAQ

Server upload?

No.

Auto-validate?

Yes, warns if 0:00 missing, 10s rule violated, wrong format.

Free?

Yes.

1 hour+ videos?

Use HH:MM:SS format (e.g., 1:23:45).