Size chart app and fit finder for Shopify Four taps to the right size.

Sizely turns your size chart into a size recommendation on every product page. Shoppers answer four quick questions, with no tape measure, then see their size and how it fits on a body like theirs. Fewer wrong sizes, fewer returns.

Free plan · 14-day trial on paid plans

Fit previewRelaxed striped tee
Relaxed striped tee, drawn flat, shown on a mannequin in the size recommended for a sample shopper: MM · Loose, as the brand intends
Sample shopper: 176 cm, 72 kg, likes a regular fit

How it works

From size chart to the right size

  1. 1Merchant

    Paste your size chart

    Paste the table you already have. On Fit and Fit Pro a photo or PDF of the chart works too. You check the sizes before anything goes live.

  2. 2Shopper

    Four tap-only questions

    Height and weight, body shape, tummy, and how they like clothes to fit. Pictures, not numbers. No tape measure and no sign-up.

  3. 3Shopper

    A size and a fit preview

    Their size with how sure Sizely is, the size picked in your product form, and your garment drawn on a body like theirs.

  4. 4Sizely

    It learns from orders

    Orders keep the answers. When something comes back for size, Sizely adjusts that chart so the next shopper gets a better call.

Live demo

Try it on a sample store

This is the real Sizely widget, the same code your shoppers get. Pick a product, tap Find my size and answer the questions.

Show the plan

Fit: the recommendation and a fit preview on a mannequin.

Sample store
Relaxed striped tee: Flat-lay drawing of the product

Relaxed striped tee

$38

Size

The garments are drawn for this demo. Your answers stay in this browser.

Learning

Gets sharper with every return

A size chart is a guess about how clothes fit. Your orders show how they really fit. Sizely connects the two, product by product.

On Fit Pro, Results shows the returns Sizely saves, how often shoppers take the recommended size, and which products run small or large.

  1. 1

    Order

    The shopper's answers and size travel with the order line.

  2. 2

    Return or exchange

    Returns and exchanges for size are matched to that line.

  3. 3

    Adjust

    The chart's fit is recalibrated and the next recommendation moves with it.

Built for your store

Fits in without a developer

  • Works with your theme

    A theme app block. Put it under the price, the options or Add to cart, and match your theme's colours and font or choose your own.

  • Arabic size guide, right to left

    Arabic and English built in. Arabic shoppers get the whole size guide in Arabic, laid out right to left.

  • Your sizes, your stock

    Recommends only the sizes the product is made in, uses your size names, and says when a size is sold out.

  • Fabric aware

    Reads stretch from the fabric in your product description, so a stretchy knit and stiff denim are judged differently.

  • Nothing to measure

    No tape measure, no photos of the shopper and no account. Four questions, then the answer.

  • Six garment types

    Tops, long sleeves, trousers and jeans, skirts, dresses and outerwear.

Pricing

Start free. Upgrade when it pays.

Paid plans start with a 14-day free trial. Billing runs through Shopify.

Free

$0 / month

Try Sizely on one product line.

  • 1 size guide
  • Size recommendations
  • English and Arabic
Add to Shopify
14-day trial

Fit

$15 / month

For stores selling across many charts.

  • Unlimited size guides
  • Fit preview on a mannequin
  • Read charts from a photo or PDF
  • Learns from orders and returns
Add to Shopify
14-day trial

Fit Pro

$25 / month

The full picture, for you and your shoppers.

  • Everything in Fit
  • Fit preview on a photographic model in a studio
  • Skin tones the shopper can choose
  • Results: returns saved, sizes taken, products running small or large
Add to Shopify

Questions

Before you install

How do I reduce clothing returns from wrong sizes?

Most size returns start with a guess against a chart the shopper can't measure against. Sizely asks four quick questions instead, recommends a size from your own chart, shows how it will fit, and then learns from the orders and returns that follow, product by product.

Is Sizely a size chart app for Shopify?

Yes. Sizely is a Shopify app that turns your size chart into a fit finder: a size recommendation and a fit preview on each product page. You install it from the Shopify App Store and place it with your theme editor.

Do shoppers need a tape measure?

No. They answer four questions by tapping: height and weight, body shape, tummy, and how they like clothes to fit. Shoppers who know their measurements can enter them instead.

How does Sizely choose a size?

It estimates the shopper's measurements from their answers, compares them with your chart and how the garment is meant to fit, and shows how confident it is. As orders and returns come in, it adjusts each chart.

What do I need to set it up?

Your size chart. Paste it, check it, and choose which products it applies to. Then add the Sizely block in your theme editor, or let it appear automatically.

Does it match my store's design?

By default it takes your theme's font and colours. You can set your own colours, button style and position from the app.

Can I offer an Arabic size guide?

Yes. The size finder is fully translated into Arabic with right-to-left layout, and it follows your store's language, so Arabic and English shoppers each see their own.

What happens after the trial?

Paid plans bill monthly through Shopify after 14 days. You can move to the Free plan or uninstall at any time.

Give every shopper their size.

Install Sizely, paste one chart, and see it on your own product page in minutes.