YouTube Chapter Generator: Create Timestamps with AI (Free)

The fastest free way to generate YouTube chapters is to copy your video's timestamped transcript, paste it into ChatGPT, Claude or Gemini with a chaptering prompt, and paste the result into your description. YouTube only turns that list into chapters if it starts at 00:00, has at least three timestamps in ascending order, and every chapter lasts at least 10 seconds. YouTube can also add automatic chapters, but not every video is eligible, and any list you write replaces them.

Here is the full method, the rules, and how it compares with the other options.

YouTube's chapter rules

From YouTube's Help Center:

• Add timestamps and titles to the video description in YouTube Studio.
• The first timestamp must be 00:00.
• You need three or more timestamps, in ascending order.
• Each chapter must be at least 10 seconds long.
• Your own list overrides automatic chapters.
• Chapters require access to YouTube's advanced features, and aren't available if the channel has active strikes or the content may be inappropriate for some viewers.

Four ways to create chapters, compared

The transcript method wins for most people because the AI works from real timestamps in your transcript, and you keep full control over the titles.

Step-by-step: chapters from your transcript

Step 1: Get the timestamped transcript. Paste your video's URL into YTTranscript and copy the transcript with timestamps. For a new upload, give YouTube time to process auto-captions first. If a video has no captions, YTTranscript can AI-generate a transcript (about 10 credits), or see what to do when a video has no transcript.

Step 2: Prompt your AI. Paste the transcript into ChatGPT, Claude or Gemini with a prompt like this:

Here is the timestamped transcript of my YouTube video.
Create YouTube chapters for the description:
- Start with 00:00
- 5 to 10 chapters, each at least 60 seconds long
- Use the timestamp of the transcript line where each new topic starts
- Titles under 40 characters, specific, no clickbait
- Output only the list, one per line, as: 00:00 Title

YouTube's minimum is 10 seconds, but 60-second chapters are more useful to viewers. Very long transcripts may need splitting into halves.

Step 3: Check every timestamp. AI can shift a boundary or invent a time that isn't in the transcript. Click through each chapter in the video before publishing; it takes a minute.

Step 4: Paste into YouTube Studio. Open Content, select the video, add the list to the description and click Save.

Step 5: Reuse the outline. Chapters double as podcast show notes and a blog post structure; see YouTube video to blog post and transcripts for podcasters.

Write chapter titles that help search

Chapters can show up outside YouTube. Google Search may display timestamps from a YouTube description as key moments in results, and Google says it prefers timestamps creators mark explicitly. Its guidelines: put each timestamp on its own line, keep the label on the same line, list them in chronological order, and give every label at least one word.

So write titles for a searcher: "How to set up SSO" beats "Part 3". Put the key phrase first, keep titles short, and match the words your audience actually types. More in YouTube transcripts for SEO.

Chapters not showing? Check these

• The first timestamp isn't 00:00.
• There are fewer than three timestamps, or they're out of order.
• One chapter is shorter than 10 seconds.
• Your channel doesn't have advanced features enabled yet.
• The channel has an active strike, or the video may be inappropriate for some viewers.

The verdict

• Most creators: transcript + AI. It's free for a couple of videos a day, takes about two minutes, and gives you titles you chose.
• No time at all: leave automatic chapters on, and accept YouTube's titles when your video is eligible.
• Publishing daily at scale: a dedicated AI chapter tool may save the copy-paste step. Compare pricing first.
• Short videos with two or three obvious sections: write them by hand.

For the timestamps themselves, see our guide to YouTube transcripts with timestamps.

Frequently asked questions

What are the requirements for YouTube chapters? Add the timestamps to your video description. 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. A manual list overrides YouTube's automatic chapters.

Can ChatGPT create YouTube timestamps? Yes, if you give it the transcript. ChatGPT can't watch a YouTube video, so paste the video's timestamped transcript and ask for chapters that start at 00:00. Check each timestamp against the video before you publish.

Why are my YouTube chapters not showing? Usually the list breaks a rule: it doesn't start at 00:00, has fewer than three timestamps, isn't in ascending order, or has a chapter under 10 seconds. Chapters also require access to YouTube's advanced features and are unavailable if the channel has active strikes or the content may be inappropriate for some viewers.

Are YouTube automatic chapters good enough? They're free and take no work, but not every video is eligible, you can't edit their titles, and any list you add yourself replaces them. Most creators get clearer, more searchable titles by writing their own.

Do YouTube chapters help SEO? They can. Google Search may show timestamps from a YouTube description as key moments in search results, and Google says it prefers timestamps that creators mark explicitly, one per line, each with a label.

Chapters start with a transcript. Get yours free at YTTranscript.app →