1of10 Chrome Extension: Features, Pricing & Free Alternative (2026)
What is the 1of10 Chrome extension? It is a browser extension that overlays outlier performance data directly on YouTube while you browse — flagging 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, but all core features require an active paid 1of10 account starting at $49/mo monthly or $29/mo billed annually. It holds a 4.1/5 rating on the Chrome Web Store.
How to 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. Without an active paid account, core features will be locked.
- 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 the 1of10 Extension Shows on YouTube
When browsing YouTube with an active 1of10 subscription, the extension activates on channel pages, search results, and the homepage. Here is a breakdown of every overlay it adds.
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.
Free vs Paid Features
1of10 does not offer a meaningful free tier. The table below clarifies what you get without a paid account versus what unlocks with each subscription level.
| Feature | No Account | Basic ($29–$49/mo) | Pro ($69–$89/mo) |
|---|---|---|---|
| Extension installs | ✓ | ✓ | ✓ |
| Outlier flags on video cards | − | ✓ | ✓ |
| View growth spike detection | − | ✓ | ✓ |
| Performance tags | − | ✓ | ✓ |
| Bookmark to library | − | ✓ | ✓ |
| Competitor tracking | − | ✓ | ✓ |
| Advanced filters | − | ✓ | ✓ |
| Thumbnail Generator | − | − | ✓ |
| Title Generator (100+ ideas) | − | − | ✓ |
| Creator Trackers | − | − | ✓ |
| Video Packaging Strategy Engine | − | − | ✓ |
1of10 Pricing (2026)
1of10 offers two subscription tiers. Annual billing reduces the monthly cost significantly. There is no free trial mentioned on the Chrome Web Store listing.
Basic
Or $49/mo month-to-month
- ✓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
- ✓Thumbnail Generator
- ✓Title Generator (100+ ideas per prompt)
- ✓Creator Trackers
- ✓Video Packaging Strategy Engine
- ✓Priority support
For serious creators
Pricing summary: Basic plan is $29/mo annual or $49/mo monthly. Pro plan is $69/mo annual or $89/mo monthly. No free trial is publicly advertised. For a full tool comparison including pricing, see our OutlierKit vs 1of10 comparison.
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 4.1/5 from real users
Drawbacks
- −Core features require a paid account — no meaningful free tier
- −Basic plan starts at $49/mo monthly, expensive for casual researchers
- −UI bugs reported after Chrome and macOS updates
- −Limited data coverage on newer or smaller channels
- −No standalone extension pricing — must purchase a full 1of10 subscription
- −Power features (Thumbnail Generator, Title Generator) locked behind $89/mo Pro
- −No privacy detail on what data the extension collects
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.
Requires paid account for core features
Unlike most Chrome extensions that offer some free functionality, the 1of10 extension is essentially a UI layer on top of a paid subscription. Installing it without an active paid account gives you almost no useful output.
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 given that the extension is part of a $49/mo paid tool.
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 paying $49/mo — the OutlierKit Chrome extension does exactly that for free.
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
- ✓Requires $29–$49/mo paid subscription
- ✓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
1of10 Chrome Extension: Overall Rating
4.1
Chrome Web Store
Based on Chrome Web Store reviews
Our take: The 1of10 Chrome extension delivers on its core promise — surfacing outlier videos while you browse YouTube. The visual overlay is genuinely useful for quick channel research. However, the requirement for a $49/mo subscription to access any meaningful feature, combined with reliability issues after Chrome updates and opaque data practices, limits its appeal compared to free alternatives.
Frequently Asked Questions
Is the 1of10 Chrome extension free?
The extension itself can be installed from the Chrome Web Store for free, but it requires an active paid 1of10 account to unlock its core features. Without a subscription, you will see the extension icon but no outlier flags, performance tags, or filters. The cheapest plan is $29/mo billed annually ($49/mo monthly).
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.
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 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 requires a $29–$49/mo paid subscription for the same core functionality. 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 starting from $16.6/mo annual for deeper research.
Related Guides
Get outlier scoring on YouTube — for free
The OutlierKit Chrome extension shows color-coded outlier multipliers on every YouTube video card. No account needed, no subscription required. Install in 30 seconds.
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