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http://youtube.com/all_comments?v= stopped working and redirects to watch?v=.... A Reddit thread states that AJAX populator also does not allow to show all the comments when there are multiple thousands of them.

How do I workaround this restriction and view & search all the comments of the particular video?

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    The official and maybe the only way is using YouTube API. You need to know the basics of programming. I would choose Python.
    – Vasikos
    Mar 11 '16 at 8:12
  • You can use this tool I made to download all comments as json youtuberandomcomment.com
    – Mihai
    Jan 13 '20 at 9:00
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There's a site that gets all the YouTube comments of a video for you and shows them in a similar format to YouTube. http://youtubextras.com. It also has a chat box to chat with others and a Top Useful Comments list that comes in handy.

You can use it by adding "xtras" after YouTube in the video url, https://www.youtubextras.com/watch?v=something and it loads it for you.

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    Please disclose in your answer if you are affiliated with the product in any way.
    – jonsca
    Nov 10 '17 at 1:35
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    That site gives an error if there are more than 4000 comments on a video. Jan 20 '18 at 17:39
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    This site cannot process unicode text (non-English text)
    – John Pang
    Jun 21 '18 at 20:03
  • When I tried, the site says "Comments are disabled for this video," even though there are comments below the video on Youtube.
    – schulwitz
    Oct 6 at 19:54
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Youtube Comments Suite is excellent and can do what you are asking, though if a channel is large it will take a while to pull all of its comments.

Note that you may have to install Java 8 in order to get the program to run.

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  • oh good grief, Java?!
    – Michael
    May 22 '20 at 3:26
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https://youtuberandomcomment.com/

It will download all comments as json,it might take a while for many comments.

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