YouTube channel scores plus AI tools in Studio: thumbnails, A/B tests, descriptions, titles, ad breaks, comment replies.
Users
287
−10 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
1
0 in 30 days
Store rank
#55K
#46K among extensions
Version
5.56.2
updated 14 Oct 2026
Users
monthly, 7 months
Latest, 16 Oct 2026:287 usersMove the mouse over the chart for any month
Ratings count
monthly, 7 months
Latest, 16 Oct 2026:1 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About Formatsight Extension
Formatsight Extension (formerly YTCI)
Research channels on YouTube and finish your own videos in YouTube Studio, without switching tabs.
★ ON YOUTUBE: CHANNEL SCORES
• Channel Score (0-100) with growth stage: Elite, Strong, Solid, Growing, New Channel
• Key metrics: subscribers, average views, uploads per week, views/subscriber ratio, viral rate, trend
• Niche classification and smart badges: Niche Dominator, Automation Ready, Viral Channel, Hidden Gem
• Side panel with the full breakdown, one click to the deep analysis on formatsight.com
★ IN YOUTUBE STUDIO: TOOLS FOR YOUR OWN VIDEOS
• Thumbnails: generate new thumbnails from your title and saved thumbnail style, or rework the current one
• Thumbnail analysis: a score out of 100 across clarity, curiosity, emotion, broad appeal and execution, with concrete improvements
• A/B tests: switch between thumbnail or title variants day by day, compare real click-through rates and set the winner
• Descriptions: SEO description from your channel profile and script, with your links and calls to action, inserted straight into the description field
• Titles: title suggestions and ratings based on your own best-performing videos
• Ad breaks: place mid-roll ad breaks at a fixed interval (every 10 to 60 seconds, starting after the intro) in one click
• Comment replies: AI reply drafts in your tone (thanks, humor, expert, question, de-escalate) that build on the video's content
★ YOU STAY IN CONTROL
Nothing is saved, published or posted automatically. The extension only fills in fields; you review and click Save in Studio yourself.
★ HOW TO START
1. Install the extension and sign in once on formatsight.com
2. Open the side panel and click "Enable" for the Studio tools
3. Open a video in YouTube Studio: the Formatsight buttons appear next to the fields they help with
AI features use your Formatsight credits or daily limits, shown before you click.
★ PRIVACY
Channel scores only need the channel you are viewing. AI features send the content of the request (e.g. video title, script, the comment you reply to) to Formatsight only when you click them. A/B test images and settings stay in your browser. No ads, no tracking, no sale of data. Details: formatsight.com/privacy-policy.html
★ ABOUT FORMATSIGHT
Formatsight (formerly YT Channel Insights) is an analytics and production platform for YouTube creators, agencies and strategists. Existing YTCI accounts keep working.