YouTube chapters generator

How to use the youtube chapters generator

1. 01List each chapter as a time and a title, one per line.
2. 02Add the video length if you have it, so the last chapter's length gets checked too.
3. 03Fix any rule flagged below.
4. 04Copy the formatted list into your video's description.

YouTube chapter rules

YouTube builds chapters from a plain list of timestamps and titles typed directly into the video description, one per line: there is no separate file to upload. YouTube's own chapters help page sets four conditions for that list to be recognised as chapters rather than just being ordinary text: the first timestamp must start at 0:00, the timestamps must be listed in ascending order, the video needs at least three timestamps in total, and each individual chapter must run for at least 10 seconds. (Verified against support.google.com/youtube/answer/9884579, 22 September 2026.)

This generator checks a list against exactly those rules as you type it, and it never changes the wording of a chapter title, only the time format at the start of each line. Passing every check here does not guarantee YouTube will show chapters, since the description text also has to be saved with those exact timestamps in it, but a list that fails one of these rules is one YouTube's own help page states will not be turned into chapters, so it is worth fixing before you publish.

Why chapters are not showing

When chapters do not appear on a published video, it is almost always one of the same four conditions the tool above checks for: a first chapter that starts after 0:00, chapters listed out of time order, fewer than three chapters in the list, or one chapter that runs shorter than 10 seconds before the next one starts. Any one of these on its own is enough to stop the whole list being read as chapters, even though the text is still visible in the description.

If a list passes all four checks here but chapters still are not showing on the live video, the next thing worth checking is whether the description was actually saved with the timestamps in it, exactly as typed. It is also worth rechecking the list against the four rules on YouTube's own chapters help page (support.google.com/youtube/answer/9884579) directly, since that page is the one that states what a set of timestamps has to meet to be read as chapters.

Writing chapter titles people click

A chapter list works as navigation, so a title that names the specific thing covered in that section ("Setting up the microphone", not "Part 2") lets a viewer find what they are looking for at a glance. Generic labels save time when writing them but cost a viewer time when reading them, which defeats the point of adding chapters at all.

Keeping titles roughly consistent in length and tense across the same list also makes the chapter menu easier to scan: a mix of full sentences and single words in the same list reads as unfinished, even when every individual title is clear on its own.

It is worth writing titles after the edit is locked rather than while planning it, since the actual content of a section can shift during editing in a way a title written in advance will not reflect.

How the numbers are worked out

This checker runs the four rules stated on YouTube's own chapters help page: the first timestamp must be 0:00, timestamps must be ascending, at least 3 timestamps are required, and each chapter must be at least 10 seconds long. (support.google.com/youtube/answer/9884579, verified 22 September 2026.) That page does not state a maximum number of chapters or any limit on title length, so this tool does not check for either.

Questions about the youtube chapters generator

How do I add chapters to a YouTube video?

Add a list of timestamps and titles to the video's description, one chapter per line, with the first one starting at 0:00. Use this tool to check the list first: paste or type your chapters, fix anything flagged, then copy the formatted list into the description and save it.

Why are my YouTube chapters not showing?

The usual causes are the four rules YouTube states for chapters: a first chapter that does not start at 0:00, timestamps listed out of order, fewer than three chapters, or one chapter running shorter than 10 seconds. Check your list against those with this tool, fix whatever is flagged, and re-save the description.

How many chapters can a video have?

YouTube's chapters help page states the minimum, at least three timestamps, each at least 10 seconds long, but does not state a maximum. In practice the video's own length is the limit: since each chapter must be at least 10 seconds, a longer video can fit more of them.

Do chapters help with search?

YouTube can surface your chapter timestamps as key moments, clickable jump points shown directly in Google Search results for the video, using the same timestamps from the description. Google's documentation describes key moments as a way for people to navigate a video's segments; it says nothing about search rankings either way, so treat chapters as a navigation and discovery feature, not a way to rank higher in search. (developers.google.com/search/docs/appearance/structured-data/video, verified 22 September 2026.)

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Updated 22 September 2026 · All free tools