Submit a link to video and get it metadata:

Snippet (the exact date and time of publication, description, thumbnails links)/Statistics/Geolocation/Status/Content details

(also it’s possible to get channel and playlist metadata)

https://mattw.io/youtube-metadata/

Download Comments:

Submit a “video id”

(you can find it here – – https://commentpicker.com/youtube-video-id.php) 

and download comments to it as a table (html file).

https://tools.digitalmethods.net/netvizz/youtube/mod_video_info.php

You don’t have to download the comments to research them. You can simply use the tool to search for keywords in comments on a video or channel.

https://ytcomment.kmcat.uk

Music in Video:

Submit link to a video and get a list of the music that plays in it.

(often this list is in the video description, but may not be present in older videos)

https://audiotag.info

Video Cutter:

If the video is too long to upload to the site from the last tweet, cut a small section from it.

https://ytcutter.net

Frame by Frame:

To closely examine all the fine details in the video, use the frame by frame viewer

https://anilyzer.com

Screenshot: 

Screenshot YouTube Chrome extension will help you download individual frames from the video as pictures.

And with the help of iloveimg.com/crop-image you can cut them into individual interesting parts

https://chrome.google.com/webstore/detail/screenshot-youtube/gjoijpfmdhbjkkgnmahganhoinjjpohk/related?hl=en

Use Yandex.Images to identify people’s faces in frames and recognize text

yandex.ru/images/

SocialBlade:

Get information about channels uploads, subscribers, video views dynamics and estimated monthly earnings

https://socialblade.com/youtube/

[ Open channel description and request access to the email address for business requests.. Investigate Email from there ]

Other tools for YouTube videos and channels investigation you may find ‘ciphers’ collection (505 tools):

https://cipher387.github.io/osint_stuff_tool_collection/

Source for more Info:

https://threadreaderapp.com/user/cyb_detective