Shopping Cart & Checkout Software Market Share & Usage Statistics (2026)
Code Black Belt runs on 16,455 live websites, 21.4% of the 76,822 sites we detect using shopping cart & checkout software. Below, all 33 tools we detect in this category, ranked by live websites, with market share and 30-day adoption momentum.
Data updated Oct 19, 2026
- #1
Code Black Belt
Companies that use Code Black Belt: our October 2026 crawl finds the Zaragoza developer's Shopify apps on 16,455 live domains, including Goya Foods, Daniel Wellington and HarperCollins UK.
Live websites (cleaned)16,455Market Share21.42%Top CountryUnited States - #2
CartBot
Companies that use CartBot: our October 2026 crawl finds the gift-with-purchase app on 8,297 domains, including Supergoop!, OLLY, Fauchon and the Milwaukee Bucks' Pro Shop. 2nd of 33 in Cart & Checkout.
Live websites8,297Market Share10.8%Top CountryUnited States - #3
GoKwik
Companies that use GoKwik: its checkout and login scripts load on 6,926 domains in our October 2026 crawl, including boAt, Sugar Cosmetics and TVS Motor's online store. 96.56% of matched companies with a known country are Indian.
Live websites6,926Market Share9.02%Top CountryIndia AOV.ai
Companies that use AOV.ai: our October 2026 crawl finds the Hanoi-based upsell suite's Shopify scripts on 6,351 live domains, including Golden Screen Cinemas, WWF Netherlands and Spikeball.
Live websites6,351Market Share8.27%Top CountryUnited StatesProduct Customizer
Companies that use Product Customizer: our October 2026 crawl finds the Shopify product options app on 5,398 domains, including Dreame, Gabriela Hearst and the UK Parliament shop. 5th of 33 in Cart & Checkout.
Live websites5,398Market Share7.03%Top CountryUnited StatesFastrr
Companies that use Fastrr: Shiprocket's one-click checkout loads on 5,320 domains in our October 2026 crawl, including Haldiram's, Bikanervala and Blackberrys. 97.5% of matched companies are in India.
Live websites5,320Market Share6.93%Top CountryIndiaKaktusApps
Companies that use KaktusApps: our October 2026 crawl finds the Moldovan developer's Shopify app scripts on 4,407 live domains, including the New York Post's shop, Assouline and Frogg Toggs.
Live websites4,407Market Share5.74%Top CountryUnited StatesEffective Apps Terms and Conditions Checkbox
Companies that use Effective Apps Terms and Conditions Checkbox: our October 2026 crawl finds the Shopify app on 3,932 domains, including Big Boy, Babymoov and EOTECH. 8th of 33 in Cart & Checkout.
Live websites3,932Market Share5.12%Top CountryUnited StatesCartStack
Companies that use CartStack: 1,470 live domains in our October 2026 crawl, led by US hotels, resorts and attractions such as Loews Hotels, Sandestin and City Experiences, after removing its Brazilian edition.
Live websites (cleaned)1,470Market Share1.91%Top CountryUnited StatesCartPops
Companies that use CartPops: our October 2026 crawl finds the WooCommerce side cart on 1,045 live domains, including Seymour Duncan, Chesterfield FC's club superstore and Christensen Arms.
Live websites1,045Market Share1.36%Top CountryUnited States
Cart & Checkout Market Data
Adoption and 30-day momentum across 33 cart & checkout technologies, measured from our live detection crawl.
Biggest Movers
Market Share
- CCode Black Belt21.42%
CartBot10.8%
GoKwik9.02%
- AAOV.ai8.27%
- PProduct Customizer7.03%
- FFastrr6.93%
- …Others36.5%
Cart & Checkout
FAQ.
What is Cart & Checkout software?
Cart & Checkout covers the tools a site can load or configure to handle this part of its stack. We detect one of the 33 cart & checkout tools in this category on 76,822 live sites. A detection means we found the technology on the site, which is not the same as a paid account.
What are the most popular cart & checkout platforms?
Across 76,822 detected sites, the most widely found cart & checkout tools are: Code Black Belt (21.42% share, 16,455 sites), CartBot (10.8% share, 8,297 sites), GoKwik (9.02% share, 6,926 sites). Others we see regularly include AOV.ai and Product Customizer.
Which cart & checkout tool has the largest market share?
Code Black Belt is the most widely detected cart & checkout tool at 21.42% share, on 16,455 sites. The largest share of those sites belongs to Retail companies, and to businesses in the 1-10 employee band.
Which industries use cart & checkout software the most?
The industries with the most detected sites in this category are Retail, Retail Apparel and Fashion, Personal Care Product Manufacturing, Manufacturing, Wellness and Fitness Services. Industry mix follows where these tools get installed, so a category carried by website builders or agency templates will lean toward the verticals those platforms serve rather than the vendor's target buyer.
Which countries have the highest adoption of cart & checkout tools?
We detect the most cart & checkout sites in United States, India, United Kingdom, Australia, Canada. Country here is the company's registered location in our enriched data rather than where the site is served from, so read it as a ranking of markets rather than a measure of any single one.
How do I choose the right cart & checkout platform?
Start from your own size, industry and primary use case rather than from share. Code Black Belt, CartBot and GoKwik are the three we detect most often in this category, which tells you what is common, not what fits you. Compare their integrations, pricing tiers and support commitments against the workflow you actually run, and check each vendor's own documentation for current capabilities.
How many companies use cart & checkout software?
TechnologyChecker.io detects cart & checkout tools on 76,822 live sites. That is a count of sites carrying the technology, not a count of paying customers, and a site running two tools in this category is counted under each. We crawl 2 billion+ URLs across 29.9M live business domains each sweep.
What is the source of this data?
TechnologyChecker.io's web crawling and technology detection platform. We've logged 2.12 billion total detections over 20+ years, covering 40,000+ technologies across the 29.9M live business domains we successfully crawl each sweep. Detection methods include JavaScript analysis, HTTP headers, HTML patterns, DNS records, and certificate transparency logs.