Chapter & Timestamp Generator
Paste one chapter per line as 0:00 Title. We'll validate it against YouTube's rules (starts at 0:00, at least 3 chapters, 10s minimum per chapter) and format it for your description.
Why chapters sometimes don't show up
YouTube's chapter bar only appears when all three of its own rules are met: the first timestamp must be exactly 0:00, there must be at least 3 timestamps total, and each chapter needs to run at least 10 seconds before the next one starts. A description with perfectly formatted timestamps that skips just one of these — say, starting at 0:05 instead of 0:00 — will still render as plain text links rather than the visual scrubber bar.
Format matters, not just content
Each line needs to match "0:00 Title" — a timestamp, then a space, then the label. Longer videos can use hour-formatted timestamps like 1:23:45, and this tool normalizes shorter ones (like a lone 0:5) to the two-digit format YouTube expects before validating them.