This website searches for keywords or sentences in youtube videos or all videos of a channel or playlist. You get a list of all occurrences of the searched keywords with the timestamp and a video clips of the occurrence in the video.
The website also shows the entire video transcript and allows you to search through it and start the video at a specific sentence
How to use
Write a channel,playlist or video url into the upper and a search query into the lower field and press search to find all instances of the seach query in videos of the given channel/playlist/video
Keep in mind that:
Only the first 250 videos will be searched
Only videos with subtitles will be searched
After your first seach all following searches for the same url will be nearly instantaneous
You can use "?", "+" or "*" as wildcards to match words.
"?" matches one or none words e.g. "hello ? and welcome" matches "hello and welcome" and "hello guys and welcome".
"+" matches one or more words e.g. "hello + and welcome" matches "hello guys and welcome" and "hello my friends and welcome".
"*" matches no, one or many words e.g. "hello * and welcome" matches "hello and welcome", "hello guys and welcome" and "hello my friends and welcome"
Use "&" to only find matches in videos where both sides are included e.g. "sunhine & rainbows" only will show clips containing either "sunshine" or "rainbows" but only for videos containing both