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Size charts that convert browsers into buyers

Transform uncertain shoppers into confident buyers with size charts built for performance, accessibility, and results. Fewer returns, happier customers, better business.

Get started for free

14 days trial. No card reqd. Free plan.

CommerceGurus Size Guides

There are already lots of size guide apps. So why build another?

Frankly, the quality of many existing Shopify apps falls well short of best practices. They often don't use semantic HTML markup, with triggers that aren’t “button” elements.

Modern, native approaches such as “dialog” for modals were not used, replaced with unnecessary clunky, slow JS.

Worst of all? Many can’t be used with a keyboard — an accessibility failure that’s simply unacceptable.

With accessibility laws such as the ADA and EEA in force, we knew merchants needed something better.

So we built the size charts app we wished existed from the start: fast, accessible, feature-rich, and crafted with the kind of code quality that won’t slow down your store or cause headaches down the road.

Key features

A simple yet powerful Shopify app that helps merchants build intuitive, customizable size charts, comparison tables, and size guides. It transforms the way your customers interact with your products and reduces returns.
AI-powered importer
01
AI-powered importer

Skip the tedious manual data entry with our intelligent size guide converter. Simply upload an image of your existing size chart, and our AI automatically extracts the measurements and transforms them into a fully editable table in your admin area.

Show real fits
02
Show real fits

Nothing beats seeing how products actually look in real situations. Whether it's "Sarah, 5'4", wears a size S," "Perfect for small apartments," or "Jack uses this for his morning workouts." Go beyond generic product shots to show authentic, relatable scenarios.

Unit conversion
03
Unit conversion

Stop losing international customers over confusing measurements. Our unit conversion feature lets you create your size charts once in either centimeters or inches, then provides a simple toggle for customers to switch between units instantly.

Easy editing
04
Easy editing

Building and maintaining size charts shouldn't feel like wrestling with a spreadsheet. Our intuitive table editor makes it simple to create the perfect size guide for your products. Add or delete rows and columns with a single click, and just drag and drop to reorder them.

Design options
05
Design options

Your size charts should feel like a natural part of your store. Styling options come with live preview, so you can see changes instantly as you customize. Control every detail: colors, typography, padding, borders and more, to seamlessly blend with your store's design.

See how it works

Play

A walkthrough of our core features (plus we've added even more since filming this!)

Getting started is easy

Creating a CommerceGurus Size Guide is so simple, you'll have your custom size chart ready on your store in minutes.

01
Create a size chart

Create a size chart

Begin with our ready-to-use default size chart that you can customize to your needs.

02
Assign the size chart to products

Assign the size chart to products

Create rules to automatically apply the right size charts to the right products.

03
Add the app widget to your template

Add the app widget to your template

You can drop our Shopify App 2.0 widget anywhere within your product page template.

Frequently asked questions

A lightweight, accessible Shopify app creating mobile-friendly size charts that reduce returns and boost conversions through clear, customer-friendly sizing information.

By providing clear and accurate sizing information, customers can make more informed purchasing decisions. This reduces the likelihood of returns due to sizing issues, which are one of the most common reasons for eCommerce returns.

CommerceGurus Size Guides is fully compliant with WCAG 2.2 AA standards, ensuring that your size guides are accessible to all customers, including those using assistive technologies.

We write extensively about accessibility on the CommerceGurus blog, including the Americans with Disabilities Act (ADA) and the European Accessibility Act (EEA).

Our app is compatible with most modern Shopify themes. If you encounter any compatibility issues, our team makes it a top priority to resolve them promptly.

Yes, we offer both Free and Professional Plans. Professional Plan: $4.99/month with unlimited size guides and a 14-day free trial.

Yes, you can easily switch between plans as your business needs change. The change takes effect immediately, and your billing will be automatically adjusted on your next payment cycle.

Try CommerceGurus Size Guides

Boost conversions and cut costly returns with CommerceGurus Size Guides. Fast, accessible, and built to the highest code standards, they enhance your store’s UX and your bottom line.

Get started for free

14 days trial. No card reqd. Free plan.

CommerceGurus Size Guides app