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Search a video's comments without an API key. Matches stay in YouTube's own comment boxes and are highlighted. YouTube has no way to search the comments on a video. This adds one. Type a word in the box above the comments. Everything that does not match is hidden, and your word is highlighted in yellow in everything that stays. It keeps YouTube's own comment boxes, so Like, Reply, hearts, "show replies" and YouTube's own "Sort by" all keep working exactly as before. WHAT MAKES IT DIFFERENT • No API key and no account. Nothing to sign up for, nothing to paste in. • No permissions at all. Look at the install prompt: it asks for nothing. • Nothing is collected and nothing is sent anywhere. There is no server. • Your page never scrolls or jumps while it searches. HOW IT WORKS YouTube only holds a few comments in the page at a time and fetches more as you scroll. This asks YouTube for the rest in the background, so a search covers far more than what is on screen. A busy video will load a couple of thousand comments in about a minute, and the count in the bar tells you how far it has got. You can press Stop at any time. ABOUT THE COUNT YouTube's own "1,234 comments" headline counts replies as well as top-level comments, so it is normally bigger than the number searched. The bar says so plainly, for example: "5 of 55 comments · YouTube lists 90, which counts replies". On a very busy video YouTube stops sending after roughly one to three thousand comments, whatever anyone does; the bar says that too, instead of pretending it found everything. REQUIREMENTS Chrome 111 or newer, or another browser built on Chromium: Edge, Brave, Opera or Vivaldi. Works on the desktop site and the phone site (m.youtube.com) on mobile browsers with extension support.
Sep 13, 2026
rating_count is the Chrome Web Store ratings count, not a written-review count.
Media assets
Screenshots and videos on the listing.
Has promo video
Whether the listing includes at least one video.
Languages
Declared language locales.
Developer website
Listing exposes a developer website URL.
Contact email
Listing exposes a contact email.
Keyword in name
Case-insensitive substring match in the name.
Keyword in description
Case-insensitive substring match in the description.
Keyword occurrences in description
Count of case-insensitive occurrences in the description.
Category user-count percentile
Share of same-category extensions with fewer users (null if unknown).
These are transparent listing completeness / keyword signals, not a prediction of Chrome Web Store search ranking.