SummifyYT Extension
Reads through a YouTube video's comments so you get the highlights instead of the scroll.
At a glance
Starts at
Free
No paid plan found on the Chrome Web Store, September 2026.
Free tier
Yes
Platforms
Chrome
Best for
People checking video reactions without reading replies
Not for
Anyone wanting the video itself summarized
3.9 out of 5
Scored by a Toolio reviewer after real useOur verdict
This extension pulls in a YouTube video's comments and hands back a condensed overview, aimed at people who want to know how an audience reacted without scrolling through the thread by hand. Settings let you turn on GPT-4, pick a summary language, or stop it from auto-starting on every video you open. You need an active ChatGPT login for it to function, and its 2.8-out-of-5 average from a handful of reviews points to an uneven experience.
✓What it does well
Quick comment overviewsTurns a long comment thread into a short, readable overview.
Configurable AI modelLets you switch on GPT-4 for potentially better summaries.
Adjustable auto-startCan be set to stop summarizing automatically on every video.
✕Where it falls short
Needs a ChatGPT loginIt only functions while you are logged into ChatGPT.
Below-average ratingsIts rating sits at a poor 2.8 out of 5, signaling an inconsistent experience.
Comments, not the videoIt summarizes comments only, leaving the video's own content untouched.
Key features
Comment thread summarizationSummarizes the comment thread beneath a YouTube video.
GPT-4 toggleIncludes a setting to summarize using GPT-4.
Language selectionLets you choose which language the summary is written in.
Auto-start toggleLets you turn off automatic summarization per video.