7 Best Shopify Theme Detectors
We tested every major tool for identifying Shopify themes. Most give you a theme name and nothing else. Here are the 7 best, ranked by accuracy, extra intelligence, and actual usefulness for store research.
You see a Shopify store with a great design and want to know what theme it's running. Simple question, dozens of tools claiming to answer it. The reality: detecting a theme name is the easy part. Most tools do it the same way (reading `Shopify.theme` from the page source). The difference is what you get alongside that theme name. Some tools stop there. Others give you apps, pixels, traffic data, and contacts for the store owner. We tested 7 theme detectors, from single-purpose web tools to full store intelligence platforms. For a deeper look at theme detection methods, see our guide on how to detect what Shopify theme a store is using. You can also browse 100+ tracked Shopify themes in our database.
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7 Tools Compared
Pricing, features, and best use cases at a glance.
| # | Tool | Pricing | Best For | Verdict |
|---|---|---|---|---|
| 1 | StoreInspectUS | Free extension + Free web tier, Pro from $49/mo | Researchers who need theme data alongside apps, pixels, traffic, and store owner contacts | StoreInspect is the only theme detector that gives you the full picture. |
| 2 | Koala Inspector | Free plan, Pro from $17/mo, Unlimited $55/mo | Dropshippers and store owners who want theme + product + sales data in one extension | Koala Inspector is the most established Shopify spy extension. |
| 3 | WhatRuns | Free (paid plans for monitoring and lead lists) | Quick technology checks across any website, not just Shopify | WhatRuns is the best free general-purpose tech detector. |
| 4 | Wappalyzer | Free extension, paid plans from ~$250/mo for bulk lookups | Developers and analysts who need broad technology profiling beyond just Shopify | Wappalyzer is an excellent general technology profiler, but it's the wrong tool if your goal is identifying Shopify themes. |
| 5 | BuiltWith | Free single lookups, paid from $295/mo | Enterprise teams who need technology intelligence at scale across all platforms | BuiltWith is the broadest technology lookup tool on the web, but it's massive overkill for Shopify theme detection. |
| 6 | PageFly Theme Detector | 100% free, no limits | Quick, free theme identification when you have a store URL and just need a name | PageFly's detector is the best pure theme-identification tool for casual use. |
| 7 | ShopThemeDetector | Free | One-off theme lookups when you just want a quick answer | ShopThemeDetector does one thing: tells you what theme a Shopify store uses. |
Each Tool Reviewed
Pros, cons, pricing, and who each tool is best for.
StoreInspect
OUR PICKShopify theme detection with full store intelligence and contacts
- 144K+ Shopify stores with themes already detected and searchable in a database
- Theme detection is just the start: also shows apps, pixels, traffic tier, lead fit score, and contacts
- Free Chrome extension detects themes on any Shopify store in one click
- Browse 100+ tracked themes at /themes with store counts and examples
- Filter stores by theme to find every store running a specific theme
- Flat $49/mo Pro plan. No per-lookup fees or expiring credits.
- Shopify only. No WooCommerce, Magento, or other platforms.
- Database covers 144K+ stores, not every Shopify store in existence
- Chrome extension required for live detection on stores not in the database
- No theme version history or changelog tracking yet
Our verdict: StoreInspect is the only theme detector that gives you the full picture. You don't just learn a store runs Dawn, you see their apps, pixels, traffic tier, and the owner's email. The database approach means you can search by theme across 144K+ stores instead of checking one URL at a time. If you're doing serious store research, not just satisfying curiosity, nothing else comes close.
Koala Inspector
Popular Shopify spy tool with theme detection, app tracking, and sales estimates
- Solid theme detection accuracy, reliable for both free and premium themes
- Also detects installed apps and shows best-selling products
- Estimated sales data (take with a grain of salt, but directionally useful)
- Free plan covers basic theme detection without paying
- Large user base and regularly updated
- Sales estimates are rough approximations, not verified data
- No searchable database. You check stores one at a time via the extension.
- No store owner contacts. Theme detection only, no prospecting.
- Pro features locked behind $17-55/mo plans
- Focused on dropshipping use cases, not agency or B2B research
Our verdict: Koala Inspector is the most established Shopify spy extension. Theme detection is accurate, and the product/sales data is useful for dropshippers evaluating stores. The limitation is that it's a one-store-at-a-time tool with no database, no contacts, and no way to search by theme across stores. Good for quick checks, not for systematic research.
WhatRuns
Free browser extension that detects website technologies including Shopify themes
- Completely free for unlimited technology detection
- Detects Shopify themes plus frameworks, CDNs, analytics, fonts, and plugins
- Works on any website, not limited to Shopify stores
- Available on Chrome and Firefox
- Clean, simple interface with one-click results
- Not Shopify-specialized. Theme detection is less detailed than dedicated tools.
- May identify Shopify as the platform but miss the specific theme name on custom builds
- Catches ~85% of frontend technologies, misses some backend tools
- No app-level Shopify detection (Klaviyo, ReCharge, etc.)
- No store database or contacts
Our verdict: WhatRuns is the best free general-purpose tech detector. If you just want to know what technologies a site uses, including whether it's on Shopify and what theme it runs, WhatRuns handles it with zero cost and zero friction. But it's a generalist tool. For Shopify-specific depth like individual apps and pixels, you'll need a dedicated detector alongside it.
Wappalyzer
Technology profiler that identifies CMS, frameworks, and tools on any website
- Detects 1,000+ technologies across dozens of categories
- 94% accuracy for technology detection in independent testing
- Available on Chrome, Firefox, and Edge
- API access for programmatic lookups on paid plans
- Also offers lead lists and email verification on paid tiers
- Does not detect specific Shopify theme names. Only identifies Shopify as the platform.
- Free tier limited to 50 lookups/month
- Paid plans are expensive ($250/mo+) and geared toward enterprise
- No Shopify app or pixel detection
- Credits expire after 60 days on paid plans
Our verdict: Wappalyzer is an excellent general technology profiler, but it's the wrong tool if your goal is identifying Shopify themes. It'll tell you a site runs Shopify, but it won't tell you it's using Dawn v15 or Prestige. Pair it with a Shopify-specific detector if you need both broad tech profiling and theme identification.
BuiltWith
Deep technology lookup and lead generation platform with historical data
- Detects Shopify themes by name, including renamed and custom variants
- Historical technology data going back years
- Covers millions of websites across all platforms
- Free for individual site lookups, no account required
- List building and filtering on paid plans
- Paid plans start at $295/mo. Way too expensive for just theme detection.
- Free tier is single-lookup only. No lists, no API, no export.
- Interface feels dated and overwhelming for simple theme checks
- May misidentify highly customized themes due to pattern-matching approach
- No Shopify-specific features like app detection or pixel tracking
Our verdict: BuiltWith is the broadest technology lookup tool on the web, but it's massive overkill for Shopify theme detection. The free single-lookup works fine for a quick check. The paid plans ($295-995/mo) only make sense if you're doing enterprise-scale technology intelligence across thousands of sites. For Shopify-specific research, you're paying for a lot of capability you won't use.
PageFly Theme Detector
Free web-based Shopify theme detector backed by a 10,000+ theme database
- Completely free with no signup, no limits, no catches
- 10,000+ theme database including all official Shopify Theme Store themes
- Identifies custom and renamed themes with clear labeling
- Available as both a web tool and Chrome extension
- Fast results, typically under 2 seconds
- Theme name only. No apps, pixels, traffic, or contacts.
- Built by PageFly as a marketing tool for their page builder product
- No database of stores. One URL at a time only.
- No export or bulk detection features
- Web tool requires the store URL. No search or discovery.
Our verdict: PageFly's detector is the best pure theme-identification tool for casual use. Paste a URL, get a theme name, done. It's free, fast, and accurate for standard and custom themes. The trade-off is obvious: you get a theme name and absolutely nothing else. Fine for curiosity. Not enough for research.
ShopThemeDetector
Simple web tool for identifying Shopify themes from a store URL
- Free and requires no account or installation
- Simple interface: paste URL, get theme name
- Also detects some installed Shopify apps
- No browser extension needed, works from any device
- Minimal data beyond theme name
- No database, no search, no filtering by theme
- Detection accuracy can be inconsistent on custom or heavily modified themes
- No traffic data, contacts, or lead scoring
- Basic web tool with limited development and updates
Our verdict: ShopThemeDetector does one thing: tells you what theme a Shopify store uses. It's free and requires nothing but a URL. For a quick answer to 'what theme is that?', it works. For anything beyond that, you need a more capable tool.
How We Tested and Ranked These Tools
We tested each tool on 25 Shopify stores with known themes, including free themes, premium themes, and custom builds. We measured detection accuracy (did it get the theme name right?), additional data provided (apps, pixels, traffic, contacts), ease of use (how many clicks to get an answer?), and pricing transparency. Tools are ranked by overall value: what you get per dollar spent, or per minute of effort.
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