SRT To Text Online Converter

SRT To Text Online Converter is a useful tool for those who want to take advantage of the closed caption information provided by YouTube to create a transcript of a video. This free online converter does not require any software installations.

To create a transcript for your video, you need to download closed caption information from YouTube and then follow these easy steps

• Copy the URL of your video in YouTube  and follow this link to create and download the raw SRT file of your video.
• Open your downloaded SRT file in Notepad and copy its entire contents to clipboard (maximum character size: 5000)
• Follow this link to create transcript. 
• Once you have finished, you can fine tune your transcript file. Transcript stripped of stopwords can be useful to make a list of keywords to optimize your video for search engines or in the "Description" field on Youtube Video Manager page or video webpage on your website.
• You can also create a list of most frequent words that occur in your transcript  for search engines optimization.

And this is free online tool to extract keywords from a webpage:

Page Keyword Extraction Tool