Supra Size ChartOne size-chart system for your whole catalog.
Create charts once, assign them with rules, and show them inline, in an accordion, or in a modal — all managed in the app, never buried in theme settings. And your sizing data stays yours.
- ✓ CSV import & export
- ✓ Metaobject-backed, portable data
- ✓ Fast server-side rendering
Everything a size guide should be
Purpose-built for sizing — not a generic content manager bolted onto your product page.
Create charts once
Build size charts centrally in the app with a spreadsheet-style row & column editor, measurement notes, instruction images, and unit modes.
Show where to measure
Pair any chart with a labelled measurement guide — chest, waist, hip — so shoppers measure in the right places and order the right size.
Assign them with rules
Target by product, collection, product type, vendor, or tag. One rule can cover hundreds of products — deploy once and forget.
Show them inline or in a modal
Pick an inline table, an accordion, or a modal trigger per assignment. Rendered server-side in Liquid, so it stays fast.
Export anytime
Charts live in your store’s own metaobjects. Import and export as CSV or JSON. No lock-in, ever.
Free, fast by design
The entire size-chart system is free. Server-side Liquid rendering keeps your product pages quick.
Live in three steps
About two minutes from install to a size guide on your product page.
Create a chart
Add rows and columns, notes, and units — or import an existing CSV.
Assign with a rule
Map it to a collection, type, vendor, tag, or a single product.
Enable the block
Add the theme block to your product page. Done — it renders automatically.
100% free. No plans, no limits.
Unlimited charts, unlimited assignment rules, every display mode, and full CSV / JSON export — free. No trial timer, no credit card, no upsell.
Add to Shopify — freeFrequently asked questions
Is it really free?
Yes — completely. Unlimited charts, rules, and display modes, free. No trials, no tiers, no credit card.
Do I keep my data if I uninstall?
Yes. Charts are stored in your store’s own Shopify metaobjects, and you can export everything as CSV or JSON at any time. Nothing is locked inside the app.
Will it slow down my store?
No. The table shell renders server-side in Liquid; only a couple of kilobytes of JavaScript run for the modal and unit toggle.
Can one chart cover my whole collection?
Yes. Assign by collection, product type, vendor, or tag and it applies to every matching product at once. Rules are matched live on the product page, so products you add later are covered automatically — there is nothing to re-apply.
Which themes are supported?
Any Online Store 2.0 theme that supports app blocks. You place the block visually in the theme editor.
Stop losing sales to sizing questions.
Add Supra Size Chart free, and keep your data yours.
Add to Shopify