Auto-format video timestamps into YouTube-compliant chapters (00:00 start required).

Cleaning up 2:15, 7:48 and 1h2m3s into real chapters

The YouTube Chapter Generator turns messy timestamps into a clean, YouTube-compliant chapter list that starts at 0:00 and is ready to paste into your description. Feed it something like "2:15 intro, 7:48 gear talk, 1h2m3s Q&A" and it normalizes that last entry to 1:02:03 — 3,723 seconds — adds the 0:00 opener YouTube requires, and checks every row ascends. Mixed styles like 2:15 and 02:15 are read as the same 135 seconds. Everything happens locally in the tab, so nothing about your description gets uploaded anywhere.

Chapters can surface in search results, so the titles you put next to each timestamp do real SEO work: "7:48 Microphone and camera gear I used" earns more clicks than "7:48 part 2." Space the markers sensibly — three chapters stacked inside the first minute gives viewers nothing to navigate. Rename anything before copying, since the generator formats the timestamps but you know your video's language best. Viewers click chapters far more than you'd think, especially on tutorials and podcasts — the timeline becomes a table of contents people actually use. One last habit: paste the block near the top of the description, where it's visible without the "more" click.