Free browser tool

Free YouTube Chapters Checker

Check YouTube chapter timestamps, order and minimum duration, then copy a clean chapter list. Free, no AI and no video upload.

Quick answer

What youtube chapters checker does

YouTube’s manual chapter rules require the first timestamp at 00:00, at least three timestamps in ascending order and a minimum chapter length of ten seconds. This checker compares each start with the next one and uses your full duration to check the final chapter. It formats the titles you provide; it does not watch the video or generate chapter topics.

YouTube chapters checker with chapter timestamps, titles and timing checks – KnowledgePilot.

How to use this tool

Paste a timestamp and title on each line, starting at 0:00.
Enter the full video duration so the last chapter can be checked.
Review the rule messages, edit your list and copy the formatted chapters.

Worked example

The example starts at 0:00, 0:30 and 1:15 in a two-minute video. The chapters last 30, 45 and 45 seconds, so the timing rules pass. Replacing the second start with 0:05 reports that the opening chapter is too short.

What to check before using the result

Passing timestamp checks does not guarantee that chapters will appear. YouTube can apply channel access, eligibility and content restrictions. The entered video duration must be correct, and each title should describe what actually happens in that section. Keep the list in chronological order: the tool reports short or reversed intervals instead of silently moving your labels to different moments.

Good to know

Frequently asked questions

Is this tool free and does it use AI?

It is free without an account. It uses fixed parsing rules, formatting or arithmetic in your browser, without AI or paid API calls. KnowledgePilot’s AI summarizers are separate products.

Does my text or file leave this device?

Inputs and document files are processed locally. This tool does not upload your text or files to KnowledgePilot. Optional saved drafts stay in your browser, so download a copy before clearing its data.

Can I rely on the result without checking it?

Review the worked example and limits above. The output follows the information you enter; it does not verify the source or supply missing facts. Check important details against the original material.

Source guidance

YouTube Help: Video chapters

Go beyond basic document tools

Finding information is only the first step. KnowledgePilot helps you understand documents, ask questions, and verify every answer against the original source.

KnowledgePilot YouTube video summarizer with a summary and source timestamp references.

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