1of10 Chrome Extension: Features, Pricing & Free Alternative (2026)
The 1of10 Chrome extension overlays outlier performance flags on YouTube video cards. 1of10 has a capped Free plan, and paid plans start at $19/month ($15/month billed yearly).
| Feature | Rating | Key Insight |
|---|---|---|
| Outlier Detection | ⭐⭐⭐⭐ | Flags videos at 6x-100x channel average, a meaningful threshold |
| Free Tier | Capped | Free plan gives 60 credits a month and 5 results per search |
| Pricing | $19/mo ($15/mo yearly) | No standalone extension tier, so you must buy the full 1of10 subscription |
| Reliability | ⭐⭐⭐ | Breaks after Chrome updates, typically patched within 1-2 weeks |
| Best Alternative | OutlierKit | Free extension with no account required, same outlier scoring |
What is the 1of10 Chrome extension? It is a browser extension that overlays outlier performance data directly on YouTube while you browse. It flags videos that outperform their channel average by 6x-100x, adding performance tags to video cards, and enabling one-click bookmarking to your 1of10 research library. Is it free? No. The extension can be installed for free from the Chrome Web Store, and 1of10 has a capped Free plan. Paid plans start at $19/mo or $180/yr billed yearly. It holds a 3.9/5 rating on the Chrome Web Store. How often a video clears a 10x bar depends on the niche: our trending niches report found 16.7% of personal finance videos did, against 3.1% in faceless automation.
How do you install the 1of10 Chrome extension?
Installation is standard for any Chrome extension. The extension is listed under the name “1of10.com Optimization Tool” on the Chrome Web Store.
- 1
Go to the Chrome Web Store listing
Visit the 1of10 extension page and click “Add to Chrome.”
- 2
Confirm the browser prompt
Chrome will ask you to confirm the extension's permissions. Click 'Add extension' to proceed.
- 3
Sign in or create a 1of10 account
After installation, click the extension icon in your toolbar and sign in. On the Free plan, research results are capped at 5 per search.
- 4
Browse YouTube
Navigate to any YouTube channel's Videos tab or a search results page. The extension overlays will activate on the video cards if your account is paid and active.
What does the 1of10 extension show on YouTube?
When browsing YouTube with an active 1of10 subscription, the extension activates on channel pages, search results, and the homepage. It adds six overlays:
Outlier flags on video cards
Paid account requiredA badge appears on videos that are outperforming the channel average by 6x-100x. The flag signals that a piece of content has broken through relative to the channel's typical reach.
View growth spike detection
Paid account requiredCTR-based signals highlight videos that are gaining momentum faster than expected. Useful for spotting content in early breakout phases before it peaks.
Performance tags on video cards
Paid account requiredEach video card gets a tag showing its performance category (strong outlier, average, or underperformer) so you can scan a channel's Videos tab at a glance.
Bookmark thumbnails and titles to library
Paid account requiredOne-click bookmarking saves a video's thumbnail and title to your personal 1of10 library inside the web app for later reference and research.
Competitor and channel tracking
Paid account requiredTrack specific channels from within the extension. New uploads from tracked channels surface in your 1of10 dashboard.
Advanced filters
Paid account requiredFilter YouTube search results and channel pages by view count, subscriber count, upload date, and engagement rate directly from the extension UI.
Important: Every feature listed above requires an active paid subscription. The extension installs for free but is essentially inert without a 1of10 account. There is no meaningful free tier.
What is free and what is paid?
1of10 has a Free plan at $0 with 60 credits a month and research capped at 5 results per search. The table below shows what you get with no account versus each paid plan. AI tools are on every plan, metered by credits.
| Feature | No Account | Basic ($15 to $19/mo) | Pro ($69 to $89/mo) |
|---|---|---|---|
| Extension installs | ✓ | ✓ | ✓ |
| Outlier flags on video cards | − | ✓ | ✓ |
| View growth spike detection | − | ✓ | ✓ |
| Performance tags | − | ✓ | ✓ |
| Bookmark to library | − | ✓ | ✓ |
| Competitor tracking | − | ✓ | ✓ |
| Advanced filters | − | ✓ | ✓ |
| AI Thumbnail Generator (4 credits each) | − | ✓ | ✓ |
| AI Title and Idea Generator (8 credits a run) | − | ✓ | ✓ |
| Monthly credits | − | 150 | 1,000 |
| Creator Trackers | − | − | ✓ |
| Video Packaging Strategy Engine | − | − | ✓ |
How much does 1of10 cost?
1of10 Basic costs $19/mo or $180/yr, and Pro costs $89/mo or $828/yr. Yearly billing saves 20%. There is also a capped Free plan, a $4,999/yr Ultra tier, and a 7-day money-back guarantee.
Basic
Or $19/mo month-to-month
- ✓150 credits/month, up to 3 channels
- ✓Chrome extension with outlier flags
- ✓View growth spike detection
- ✓Performance tags on video cards
- ✓Bookmark library
- ✓Competitor channel tracking
- ✓Advanced filters
- ✓1of10 web platform access
Most common entry point
Pro
More featuresOr $89/mo month-to-month
- ✓Everything in Basic
- ✓1,000 credits/month
- ✓Unlimited channels and paid seats
- ✓Creator Trackers
- ✓Video Packaging Strategy Engine
- ✓Priority support
For serious creators
Pricing summary: Free is $0 with 60 credits a month. Basic is $15/mo yearly or $19/mo monthly. Pro is $69/mo yearly or $89/mo monthly. Ultra is $4,999/yr. AI tools are on every plan, metered by credits. Verified September 28, 2026. For a full tool comparison including pricing, see our OutlierKit vs 1of10 comparison.
What are the pros and cons?
What works well
- ✓Outlier flags load directly on YouTube without leaving the page
- ✓Visual performance tags let you scan a channel at a glance
- ✓Bookmark feature integrates with the 1of10 web library
- ✓Advanced filters are useful for narrowing competitor research
- ✓Detects outliers at 6x-100x channel average, a meaningful threshold
- ✓Chrome Web Store rating of 3.9/5 from real users
Drawbacks
- −The Free plan caps research at 5 results per search, so real use means paying
- −UI bugs reported after Chrome and macOS updates
- −Limited data coverage on newer or smaller channels
- −No standalone extension pricing, so you must purchase a full 1of10 subscription
- −AI tools run on shared credits; Basic's 150 a month covers about 37 thumbnails
- −No privacy detail on what data the extension collects
What are the known bugs and limitations?
Based on user reviews on the Chrome Web Store and community discussions, the following recurring issues have been reported with the 1of10 extension.
Post-Chrome-update display bugs
Several users have reported that performance tags and outlier flags stop rendering correctly after Chrome major version updates. The 1of10 team typically patches these within 1-2 weeks, but it creates gaps during the interim.
macOS-specific layout glitches
On macOS with Retina displays, the extension overlay occasionally renders at incorrect positions relative to video card elements, especially in YouTube grid view.
The Free plan is tightly capped
1of10 has a Free plan at $0, but it caps outlier search and thumbnail search at 5 results and trending formats at the top 3, with 60 credits a month for the AI tools. For daily research you need Basic at $19/mo or more.
Limited data on smaller channels
Outlier flags only appear on channels with enough data history for 1of10 to calculate a meaningful average. Newer channels with limited upload history often show no flags at all.
No bulk export
You can bookmark individual videos, but there is no way to export a batch of outlier data directly from the extension UI. You must go to the web app to work with your saved research.
Bottom line on reliability: The 1of10 extension works well under normal conditions, but it has a documented pattern of breaking after Chrome updates. If you rely on it daily for research, expect periodic downtime until patches are released. This is a meaningful concern if you pay for Basic at $19/mo or Pro at $89/mo mainly for the extension.
The Best Free Alternative: OutlierKit Chrome Extension
If the core thing you want from 1of10's extension is outlier scoring on YouTube video cards, without a 1of10 subscription, then the OutlierKit Chrome extension does exactly that for free. The extension pattern suits solo creators. If you run outlier research across many client channels each week (agency and brand-team work), scanning a whole niche from a dashboard beats flag-by-flag bookmarking, so the OutlierKit web platform is the better fit there.
OutlierKit extension: completely free, no account needed
Install once and get instant outlier scoring on every YouTube channel's Videos tab. No sign-up, no subscription, no tracking of personal data.
OutlierKit Extension
- ✓Completely free, no account required
- ✓Color-coded multipliers on every video card
- ✓Green: 2.0x+ (outlier), Neutral: 1.0x-2.0x, Red: below 1.0x
- ✓Works on any channel's Videos tab
- ✓Hover for detailed breakdown
- ✓One-click deeper analysis at OutlierKit.com
- ✓Lightweight, no browser slowdown
- ✓No personal data collected
- ✓Only activates on YouTube.com
1of10 Extension
- ✓Free plan capped; paid from $19/mo
- ✓Outlier flags (6x-100x channel average)
- ✓Performance tags on video cards
- ✓View growth spike detection
- ✓One-click bookmark to library
- ✓Advanced filters on YouTube
- ✓Competitor channel tracking
- −Known bugs after Chrome updates
- −No detail on data collection
How OutlierKit scores work
The OutlierKit extension calculates each video's performance relative to the channel's median view count and displays the result as a multiplier directly on the thumbnail.
2.0x+
Outlier: outperforming channel average
1.0x-2.0x
Neutral: performing near average
Below 1.0x
Underperforming relative to channel
How does the 1of10 extension rate overall?
Based on Chrome Web Store reviews
Also reviewed on
Our take: The 1of10 Chrome extension delivers on its core promise. It surfaces outlier videos while you browse YouTube. The visual overlay is useful for quick channel research. However, the 5-result cap on the Free plan, which pushes real use to a paid plan, combined with reliability issues after Chrome updates and opaque data practices, limits its appeal compared to free alternatives.
Frequently Asked Questions
What It Does
Is the 1of10 Chrome extension free?
The extension installs free from the Chrome Web Store, and 1of10 now has a Free plan at $0 with 60 credits a month. The Free plan caps research: outlier search and thumbnail search show 5 results, and trending formats shows the top 3. Paid plans start at Basic, $19/mo or $180/yr ($15/mo).
What does the 1of10 Chrome extension show on YouTube?
When you browse YouTube with an active 1of10 subscription, the extension overlays outlier flags on videos that outperform their channel average by 6x-100x, adds performance tags to each video card, highlights view growth spikes, and gives you one-click bookmarking to your 1of10 library. It also adds advanced filtering controls to YouTube search and channel pages.
Features & Pricing
How does 1of10 define an outlier video?
1of10 defines an outlier as a video that has received 6x to 100x more views than the creator's channel average. For example, if a channel typically gets 20,000 views per video, a video with 200,000 views (10x the average) would be flagged as an outlier.
What are the known bugs with the 1of10 extension?
The most commonly reported issues include display bugs after Chrome major version updates (outlier flags stop rendering correctly), layout glitches on macOS Retina displays, and missing flags on smaller channels with limited data history. These are generally patched within 1-2 weeks of a Chrome update.
Is It Worth It?
Is there a free alternative to the 1of10 Chrome extension?
Yes. The OutlierKit Chrome extension is completely free with no account required. It shows color-coded outlier multipliers directly on YouTube video cards: green for 2x+ (outlier), neutral for 1x-2x, and red for below 1x. You can hover any video for a detailed breakdown and click through to full analysis at OutlierKit.com. Install it from the Chrome Web Store.
How does the OutlierKit extension compare to 1of10 for outlier research?
Both extensions overlay outlier scores on YouTube video cards. The key differences: OutlierKit is completely free with no account needed; 1of10 has a Free plan capped at 5 results per search, with paid plans from $19/mo. OutlierKit uses color-coded multipliers (e.g., 3.2x) making scores immediately readable; 1of10 uses categorical flags. OutlierKit also integrates with a full web platform (plans start at $29/mo) for deeper research.
Related reading
1of10 Review 2026: Honest Verdict
Our full review of 1of10: the outlier database, AI generators, pros and cons.
OutlierKit vs 1of10: Full Platform Comparison
Beyond the extension. Compare features, pricing, and use cases for both platforms.
Best YouTube Analytics Tools in 2026
How 1of10 stacks up against VidIQ, TubeBuddy, and OutlierKit in a full comparison.
1of10 pricing, plan by plan
Free, Basic, Pro and Ultra, with what each includes.
1of10 alternatives
Other outlier tools, including free options.
How OutlierKit Helps You Find Viral Videos
How this review was made
The rating and rating count come from the Chrome Web Store listing on the update date shown, and prices from 1of10's pricing page. The bugs section summarizes public user reviews. The verdict weighs documented features and public reviews, not a paid test.
Sources
- 1of10 on the Chrome Web Store: rating, rating count and user reviews
- 1of10 reviews on Trustpilot
- 1of10 reviews on Product Hunt
- OutlierKit extension on the Chrome Web Store
- 1of10 pricing, plan by plan: our dated read of the 1of10 pricing page
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