Free size finder for Shopify
Keep your size chart. Give shoppers the answer.
Paste in the chart you already have. Shoppers type a few measurements, or pick a bra size like 34C. They see one size to buy, for clothes, shapewear and bras.
Free: every feature, unlimited charts, no watermark, no credit card.
- Bras: band and cup
- Shapewear: waist, hips, chest
- Clothes: chest, waist, hips
Find your size
Example chart. On your store, SizeMind uses your own size chart.
- On the Shopify App Store
- Theme app block for Online Store 2.0 themes
- Measurements saved only in the shopper’s browser
- 4 widget languages
How it works
How SizeMind works
Three small steps for your shoppers. Three for you.
For shoppers
Enter your numbers.
Type a few measurements, like waist and hips. For a bra, pick your band and cup, like 34C. Not sure? Measure instead.
See the size to pick.
We look up your numbers in this product’s size chart. You see one clear size, like “M”. If your numbers fit two sizes, we pick the larger one and show which size each number fits.
We remember you.
The measurements you type are saved in your own browser. On the next product, you do not have to type them again.
For you, the store owner
Add your size chart.
Start from a template or paste the chart you already have.
Connect it to products.
All products, or pick by name, collection, tag or type.
Add the block to your theme.
One click opens your theme editor with the block added. Save, and you are done.
You do not write code.
Picture a helpful assistant in a shoe shop. She measures your foot once and writes it on a card. Next time she already knows your size, and she walks you to the right shelf. The card stays in your pocket, not in her filing cabinet.
Bras · Shapewear · Clothing
One finder, three kinds of products
Different clothes need different measurements. SizeMind looks at the right ones.

For bras, SizeMind uses band and cup, or under-bust and bust.
On the product page
Turn on the band and cup picker in the block settings. It then sits next to your sizes.

Pick band and cup
The shopper picks 34 and C. The picker shows M, the size to buy.

Or measure instead
Under-bust and bust give a bra size. Between sizes, a sister size is shown too.


For shapewear, shoppers enter chest, waist and hips. You can set waist and hips to count the most.
Enter measurements
Chest, waist and hips, in centimetres or inches. Pictures show where to measure.

See one size
The size is marked on the size buttons, with a short note on why.

On collection pages too
With the badge turned on, shoppers see their size before they click.


For clothing, SizeMind reads chest, waist and hips from your own chart.
On the product page
A “Find your size” card sits on the product page, where you put it.

Enter three numbers
Chest, waist and hips, plus a preferred fit.

See the size to pick
M is marked on the size buttons, with the reason in the card below.

Screenshots from our demo store, with example charts.
For merchants
Set up in five short steps. No code.
Pick what you sell for a ready chart, or paste the chart you already have. Choose which products use it: all of them, or by name, collection, tag or type. Then add the block in your theme editor.
- Analytics compare the size SizeMind suggested with the size shoppers bought.
- Works with Online Store 2.0 themes.


Features
Everything the finder does
Bra sizes in the shopper’s system, cm or inches, in the language you pick, on a chart you control.
US, UK or EU bra sizes
Bra band and cup show in US, UK or EU sizes, and cm or inches follow the shopper’s country. They can switch any time.
Centimetres or inches
The same goes for measurements. Metric for most places, inches for the US and UK.
“Your size” badges
Shoppers see their size on collection pages, with one switch in the app embeds.

4 widget languages
English, Spanish, German, and Bosnian/Croatian/Serbian. You choose the language in the block settings.
Size chart only
Turn the finder off for any chart you want and show just the chart.
Chart vs finder
A chart gives shoppers a table. SizeMind gives them a size.
Your chart is still there. SizeMind does not replace your chart. It reads it.
The shopper
With a plain size chart:
Reads a table and guesses.With SizeMind: Sees one size to pick.
Bras
With a plain size chart:
Does the cup maths alone.With SizeMind: Picks band and cup, or measures.
Another country
With a plain size chart:
Reads sizes from another system.With SizeMind: Sees cm or inches, and bra sizes in US, UK or EU.
You, the merchant
With a plain size chart:
Update an image or a table by hand.With SizeMind: Update your chart once.
Free
Free. Every feature.
SizeMind costs nothing today. No trial, no tiers, no credit card.
- Unlimited size charts
- Clothes, shapewear and bras: measurements, or band and cup
- US, UK and EU bra sizes, cm and inches
- Collection-page size badges
- Analytics
- 4 widget languages
- No watermark
If we ever add paid extras, you’ll hear about it first.
What is SizeMind?
It is an app for Shopify stores. It adds a size finder to your product page. Shoppers type a few measurements, or pick their bra size. Then they see the size to buy, for clothes, shapewear and bras.
Is it really free?
It is free today. You get every feature. There is no trial and no watermark. If we ever add paid extras, we will tell you before anything changes.
Does it work for shapewear and bras? My bras are S/M/L.
Yes. For shapewear, shoppers type their measurements, and you can set waist and hips to count the most. For bras, shoppers can pick band and cup, like 34C, or measure instead. If your chart maps band and cup to S, M or L, they see S, M or L.
Will it break my theme?
It should not. SizeMind is an app block, so it does not change your theme code. You add it in the theme editor, and you can remove it the same way. It works with Online Store 2.0 themes. It does not work with older themes.
What happens to my shoppers' measurements?
Their measurements are saved in their own browser. To work out a size, the widget sends them to our server, and we do not save them there. We do keep a few things for your Analytics page: anonymous usage events and the order details Shopify sends us. Our privacy page lists them all.
Does it use AI? Will it be right?
No AI. SizeMind compares a shopper's measurements with the size chart you give it. The same measurements give the same answer. It is only as good as your chart, so we do not promise fewer returns.
Does it work in other countries and languages?
Yes, in many. SizeMind shows cm or inches based on the shopper's country, and bra sizes in US, UK or EU. Shoppers can switch. The widget comes in English, Spanish, German, and Bosnian/Croatian/Serbian. You pick the language for your store.
How do I set it up? Do I need to retype my charts?
Add a chart, connect it to your products, and add the block in your theme editor. You can start from a template or paste the chart you have. SizeMind reads simple tables, including band-by-cup charts. You can email support@getsizemind.com if you get stuck. We aim to reply within 1–2 business days.
Show your shoppers their size.
Add SizeMind to your store. It is free, and it takes your size chart from a table to an answer.
Install freeNo credit card. Remove it any time.