Free tool

YouTube chapters generator and checker

Paste your timestamps or type your sections. We fix the format, check YouTube’s rules and tell you why chapters aren’t showing.

  • Free
  • No sign-up
  • Runs in your browser

Add a chapter

2 things to fix

YouTube won’t show chapters until these are fixed.

  • The first chapter must start at 0:00. Yours starts at 0:08.
  • “A quick note” lasts 4 seconds. Each chapter needs at least 10.

6 chapters

Copy into your description With the fixes applied

0:00 Welcome
2:09 Why most podcasts stay small
7:30 The 3 shorts that grew my show
14:45 What to post first
21:10 Your questions

How to use it

  1. Paste your timestamps Or add them one at a time. Any common format works.
  2. See what’s wrong Every problem is explained in plain words.
  3. Fix and copy One click fixes it. Paste the result into your description.

Add the video’s length if you know it: then the last chapter gets checked too. Lines without a time (like “Thanks for watching!”) are pointed out, since they won’t become chapters.

YouTube’s rules for chapters

YouTube turns the timestamps in your description into chapters only when they follow a few simple rules.

2:05 · Why podcasts stay small
0:002:057:3014:4521:10
  1. 1The first one starts at 0:00
  2. 2Three chapters or more
  3. 3Each lasts 10 seconds or longer
  4. 4In time order, in the description
Chapters split the progress bar into named parts. Four rules make them appear.

Times can be written as 0:00 or 00:00, and with hours past the first hour, like 1:02:03. Put one chapter on each line: the time, then a short title people would want to tap. Chapters you write yourself take the place of any automatic ones.

Why aren’t my chapters showing?

Go down this list. Almost every time, one of these is the reason:

  • The first time is 0:00, not 0:01 or 0:05
  • There are at least three timestamps
  • Every chapter lasts at least 10 seconds
  • The times go up from top to bottom
  • They’re in the description, and you pressed Save
  • Times use colons (1:05), not dots (1.05)

Every chapter holds a short

Chapters mark where each topic starts. That’s also where the moments worth a short tend to sit: a story, a strong opinion, a clear tip. Most chapters hold at least one part that works on its own, so a list of chapters is already a list of shorts to make.

Free · Tool Subtitle converter Have subtitles for the video? Convert them to SRT, VTT or plain text, and fix their timing.

For the whole process, from chapters to finished shorts, read how to turn a long video into shorts.

Sources

  1. YouTube Help: Video chapters

Questions people ask

How do I add chapters to a YouTube video?

In YouTube Studio, open the video, add a list of timestamps and titles to the description (the first at 0:00), and click Save.

Why are my YouTube chapters not showing?

Usually one rule is broken: the first time isn’t 0:00, there are fewer than three timestamps, a chapter is shorter than 10 seconds, or the times are out of order. Paste them into the checker to see which.

What format should YouTube timestamps be in?

Minutes and seconds with a colon, like 0:00 or 12:30, with hours past the first hour, like 1:02:03. One chapter per line: the time, then the title.

How long does each chapter need to be?

At least 10 seconds. One chapter that’s too short keeps them all from showing, so fold it into the chapter before it.

Do my own chapters replace YouTube’s automatic ones?

Yes. Chapters you write in the description take the place of automatic chapters.

Got a long video? Turn it into shorts today.

Drop a podcast, lecture or interview. Our AI finds its best moments and makes them vertical shorts with captions. Free to start, no watermark.

  1. Drop the video
  2. AI picks the moments
  3. Shorts with captions
Make shorts free No card needed