Why are my chapters not showing on the video?

The usual cause is one of the four rules failing: the list does not begin at 0:00, the times do not ascend, there are fewer than three entries, or a section runs under ten seconds. YouTube shows no error — a failed list simply appears as ordinary text in the description.

What is the minimum number of chapters and their length?

At least three chapters, and each must run for at least ten seconds. The first chapter must also start at exactly 0:00 — beginning at 0:05 makes the entire list be ignored.

Can chapters go in a comment instead?

No — chapters only form from the video description. Timestamps written in a comment still become clickable links, but they will not divide the player bar into sections.

Do chapters help a video get found in search?

Chapters let Google surface a specific part of your video as its own search result, so one video can appear for a question covered in just one section. Descriptive chapter titles serve that far better than generic ones like Part 1.

YouTube Tools

YouTube Chapters Generator

Paste your timestamp list to check whether YouTube will recognise it as chapters.

Timestamp list

Starts at 0:00

Ascending order

At least 3 chapters

Each ≥ 10 seconds

CHAPTER BLOCK

What this is

A YouTube chapters generator checks a timestamp list against the rules YouTube requires before it turns them into markers on the player bar. There are four rules and all are mandatory: the list must begin at 0:00, times must ascend, there must be at least three entries, and each section must run at least ten seconds. Break any one and the whole list is treated as ordinary text — with no error message, which is what makes the failure hard to diagnose.

How it works

The rule broken most often is the ten-second minimum. Creators mark short opening segments — a cold open, a greeting, a sponsor read — a few seconds apart, and that alone makes the whole list fail even when every other rule is satisfied.

Chapters go in the video description, one per line, with the timestamp at the start of the line followed by the title. A timestamp placed at the end of a line still becomes a clickable link, but it will not form a chapter. This tool outputs a block already formatted to paste in directly.

How to use it

Paste your timestamps One per line, with the time first — for example 0:00 Introduction.
Fix what gets flagged Each rule violation is flagged on its own line, with the reason it fails.
Copy the chapter block Paste the result into the video description, not a comment — chapters only form from the description.

Common questions

Why are my chapters not showing on the video?: The usual cause is one of the four rules failing: the list does not begin at 0:00, the times do not ascend, there are fewer than three entries, or a section runs under ten seconds. YouTube shows no error — a failed list simply appears as ordinary text in the description.
What is the minimum number of chapters and their length?: At least three chapters, and each must run for at least ten seconds. The first chapter must also start at exactly 0:00 — beginning at 0:05 makes the entire list be ignored.
Can chapters go in a comment instead?: No — chapters only form from the video description. Timestamps written in a comment still become clickable links, but they will not divide the player bar into sections.
Do chapters help a video get found in search?: Chapters let Google surface a specific part of your video as its own search result, so one video can appear for a question covered in just one section. Descriptive chapter titles serve that far better than generic ones like Part 1.

Notes

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EnSaveNet is not affiliated with YouTube. Chapter rules can change.