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YouTube Chapter Formatter
Marketing & SEO
Turn rough timestamp notes into YouTube-ready chapters that always start at 00:00.
Rough notes
YouTube chapters (6)
00:00 Start 00:15 Intro 01:20 Gameplay 04:05 Boss fight 07:42 Final thoughts 10:30 Outro & thanks
Ready to paste into your video description.
What is the YouTube Chapter Formatter?
The YouTube Chapter Formatter turns messy timestamp notes into the exact format YouTube needs to show chapters on your video's progress bar. Write notes however you like — '1:20 gameplay', 'intro at 15s', '2m30s outro' — and it extracts the times, sorts them, pads them to MM:SS or H:MM:SS and adds the required 00:00 first chapter.
How to use this tool
- Paste your rough notes, one chapter per line.
- Check the formatted chapters and any warnings.
- Click Copy Chapters and paste them into your YouTube video description.
Frequently Asked Questions
The first timestamp must be 00:00, you need at least three timestamps in ascending order, and each chapter must be at least 10 seconds long. This tool always adds 00:00 and warns you about the other two rules.
Clock formats like 1:20 or 1:02:30, and written forms like 15s, 90 sec, 2m30s, 1h 5m or '3 min'.
A '00:00 Intro' chapter is added automatically. If your first note is already at zero, its title is used instead.
No. Everything runs in your browser, so nothing is uploaded to a server.