Best Size Recommendation Tools

Compare the Top Size Recommendation Tools as of December 2025

What are Size Recommendation Tools?

Size recommendation tools, also known as size advisors, are software tools that help users determine the most suitable size of clothing, footwear, or accessories when shopping online or in-store. These tools use various inputs, such as the customer's measurements, body shape, past purchases, or preferences, to provide accurate sizing recommendations. Many incorporate technologies like AI, machine learning, and data analytics to analyze trends and optimize results. Some advanced systems even allow users to visualize the fit through virtual try-ons or 3D modeling. By reducing uncertainty, these tools enhance customer satisfaction, minimize returns, and boost confidence in online shopping. Compare and read user reviews of the best Size Recommendation tools currently available using the table below. This list is updated regularly.

  • 1
    Faslet Size Me Up
    Faslet's Size Me Up widget helps your retail customers find the perfect size in just a few easy steps. No measuring tape is required! The size recommendation widget is tailored to your online fashion brand or multi-brand store, both in function and design. Our innovative algorithm ensures your customers will be recommended the right size. The widget itself is easy to integrate and customize, making it the perfect addition to your online retail shop. Faslet provides integrations for several platforms, as well as the ability to integrate our widget into whatever custom platform you have. Is your webshop built in Shopify, Magento, Commerce Cloud, WooCommerce, Shopware, Lightspeed, Shopmaster or BigCommerce? Then you can seamless use our code snippet or plugins. Download this via the App Store of the relevant website, register as a merchant at Faslet and start today!
    Starting Price: $199 per month
  • 2
    MySizeID

    MySizeID

    MySizeID

    We know online merchandise returns are a challenge for your store. MySizeID helps retailers every step of the way with a full 360°solution. Give your customers an easy and simple tool to quickly generate their size ID and find their ideal size. When customers know their perfect size in your store, they’ll look forward to every parcel, and love every item they buy, increasing brand loyalty. When every item fits perfectly, customers buy more and return less. Optimize your customer database, get to know your client, and maintain inventory on relevant items accordingly. MySizeID Widget is integrated into your store’s product pages and displays a personal size recommendation to shoppers, making it easier than ever to improve your customers’ online shopping experience while increasing sales and reducing return costs. MySize is among the only sizing solutions to offer SDK integration to perfectly fit your needs.
    Starting Price: $49 per month
  • 3
    Aimirr

    Aimirr

    Aimirr

    Aimirr is an AI-powered platform designed to enhance the online shopping experience by providing precise body measurements, intelligent size recommendations, and virtual try-on capabilities. Its body scanning technology operates seamlessly across any device without the need for additional applications, generating 3D models with up to 99% accuracy in under 60 seconds. By analyzing individual body measurements against specific product dimensions, Aimirr offers personalized size guides, eliminating the uncertainty associated with online apparel purchases. The virtual fitting room feature allows customers to visualize how garments will appear in real time, utilizing their exact measurements to reduce hesitation and increase satisfaction. Integration with ecommerce platforms is straightforward, enabling retailers to implement these features swiftly, thereby minimizing returns and boosting customer confidence.
    Starting Price: $29 per month
  • 4
    Prime AI

    Prime AI

    Prime AI

    Prime AI specializes in artificial intelligence and machine learning technologies to address real-world challenges, enhancing business efficiency and environmental sustainability. Their proprietary neural networks and image analysis tools are tailored for specific applications, delivering unique, fast, and accurate solutions that are cost-effective and add value to businesses. Prime AI's offerings include features designed to improve the online shopping experience by providing personalized size recommendations and enabling customers to find visually similar items effortlessly. These tools help reduce return rates, increase customer satisfaction, and boost conversions for fashion retailers. Additionally, Prime AI provides custom artificial intelligence development services across various industries, including renewable energy, aeronautics, automotive, engineering, medical, security, retail, manufacturing, telemarketing, law, and logistics.
    Starting Price: $38.23 per month
  • 5
    Robosize

    Robosize

    Robosize

    RoboSize offers a virtual fitting room solution that enhances the online shopping experience by providing personalized size recommendations and realistic garment visualizations. By asking customers a few simple questions, such as height and weight, RoboSize determines the exact size and fit, displaying how the garment will appear on the customer's body. This approach eliminates customer dissatisfaction and reduces sizing-related returns due to its accurate, customer-exclusive sizing solution. The integration process is straightforward, taking less than 10 minutes on any website platform, including Shopify and non-Shopify ecommerce businesses. RoboSize's virtual fitting room is optimized for mobile devices, ensuring a seamless experience across all platforms. By implementing this solution, retailers can expect increased conversions, higher average order values, and lower return rates, while providing an engaging and inclusive shopping experience for customers of diverse sizes.
    Starting Price: $49.99 per month
  • 6
    True Fit

    True Fit

    True Fit

    True Fit is a data-driven personalization platform for footwear and apparel retailers that decodes personal style, fit, and size for every consumer, every shoe, and every piece of clothing. Its Fashion Genome is the industry’s most comprehensive data set and collective in the nearly $2 trillion global apparel and footwear industry. By connecting manufacturing design data from thousands of leading apparel and footwear brands, anonymized consumer order data from hundreds of top retailers, personal preference data from millions of registered True Fit users, and hundreds of millions of anonymous shoppers, it maps the detailed style, fit, size and other technical attributes from clothes and shoes to the detailed style preferences and buying behaviors of millions of individual shoppers. True up your entire personalization stack with APIs, software, and intelligence powered by the world’s best data set for fashion, giving retailers and their other software providers new intelligence.
  • 7
    Goodsize

    Goodsize

    Goodsize

    Help your customer find the perfect fit every time. We help your customers find clothes that fit. Designed for all bodies, sizes, and brands. Fewer returns, more happy customers. Integrate Goodsize with your store effortlessly in just a few minutes using the Goodsize Shopify App or Goodsize APIs. Get your fit recommendations as you shop and browse for garments online. Our app will automatically show you the brands we are partnered with and provide you with a size recommendation. Get a recommendation based on your actual body shape and fit preferences. Just like a skilled tailor, our app helps you craft the perfect fit and curate ideal garment recommendations for you. Discover us on our partners websites. A Universal App for Every Body and Gender. Discover your unique style, regardless of your preferences or identity. Let us guide you to find your perfect fit.
  • 8
    Bold Metrics

    Bold Metrics

    Bold Metrics

    Bold Metrics is the leading AI solution for apparel retailers and brands looking to boost conversion, reduce returns and elevate the retail experience around sizing. Bold Metrics technology enables brands to build a scalable library of shopper digital twins, unlocking the power of body data to meet the demands of today's increasingly personalized world by empowering data-led technical design while improving sustainability efforts. Our robust SaaS solutions provide a scalable way for brands to connect customers to clothing in their best fit, style-by-style, for accurate size recommendations based on actual customer body measurements. Bold Metrics offers a range of AI sizing solutions tailored to your needs—whether you are a DTC custom clothier or multi-brand retailer with physical storefronts and a significant online presence. Bold Metrics powers fit at Vuori, Canada Goose, Men’s Wearhouse, Burton, UpWest, along with many more trusted brands.
  • 9
    Sizekick

    Sizekick

    Sizekick

    Leading fashion brands and multi-brand retailers use Sizekick's AI-based size recommendation solution in their e-commerce stores to put an end to unnecessary size-related returns. The web-based solution of the Gemany-based company (located in Munich) can provide the most accurate results with its two computer vision based user journeys: 1) BodyFinder 2) BodyScanner With Sizekick online shoppers receive a product-specific and accurate size recommendation based on their individual body measurements. The integration of Sizekick in a fashion e-commerce store only lasts few minutes on shop's side. Shops get access to exclusive real-time user insights (shopping behavior and demographics).
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