A size guide fewer questions and returns
Sizer lets you build reusable size charts and show them on your WooCommerce products — in an accessible pop-up modal or as a product tab. Build a chart once, assign it per product or per category, and the guide appears automatically on the product page.
Works with
Size uncertainty ends in a return
A shopper is not sure the size will fit, so they either ask before buying or buy and return. Without a clear size chart, questions and returns climb and conversion drops.
- ✗ No size chart on the product page
- ✗ Shoppers do not know which size to pick
- ✗ More pre-sale questions and more returns
- ✗ Size charts that are not keyboard or screen-reader accessible
Sizer shows a clear size guide
- ✓ Reusable size charts built once and used everywhere
- ✓ Per-product assignment or a default per category
- ✓ An accessible native dialog modal, or a product tab
- ✓ No-layout-shift rendering, with reduced-motion and dark mode
What you get in the free version
Everything you need to show a size guide on the product page.
Reusable size charts
Build a labelled table of rows and columns once and reuse it everywhere.
Per product or per category
Assign a chart to a product or set a default chart for a whole category.
Accessible modal
A native dialog element that is keyboard operable, focus-managed and screen-reader friendly.
Or a product tab
Show the chart inline as a product tab instead of a modal.
Configurable trigger
A button or text link, placed where you choose on the product page.
Themeable and responsive
No-layout-shift rendering that respects reduced-motion and dark mode.
Graceful by design
Nothing renders when a product has no chart assigned.
Template overrides
Override templates from your theme under a sizer/ folder; CSS exposes custom properties.
Up and running in three steps
Create a chart and show the first guide on a product page.
Install
Activate Sizer alongside WooCommerce.
Create a chart
In WooCommerce → Size Guides build a chart and pick the display style and placement.
Assign it
Assign the chart on a product or a category and open the product page.
Who it is for
When size is uncertain — a clear chart that cuts questions and returns.
Fashion and apparel
A clear size chart on every product page.
- ✓ Modal or tab
- ✓ Per product
- ✓ Per category
Stores with many categories
A default chart per category, overridden per product.
- ✓ Category defaults
- ✓ Per-product overrides
- ✓ One chart reused
Accessibility-minded stores
An accessible dialog modal operable by keyboard and screen readers.
- ✓ Native dialog
- ✓ Focus management
- ✓ Reduced-motion
Need more? Sizer PRO
FREE covers reusable charts and per-product/category assignment. Sizer PRO will add per-variation charts, unit switching, a find-my-size calculator and import/export.
- ✓ Per-variation charts (planned)
- ✓ Unit switching cm/inch (planned)
- ✓ Find-my-size calculator and import/export (planned)
Support and resources
Every plugin has its own documentation with setup walkthroughs. Bugs and questions go to the public GitHub repository for that plugin — we answer in the open.
Frequently asked questions
Does it require WooCommerce?
Yes. Sizer extends WooCommerce single product pages.
Where does the size guide appear?
On the single product page. You choose the placement under WooCommerce → Size Guides — after or before the add-to-cart button, in the product summary or meta area, or as a product tab.
Can I use one chart for a whole category?
Yes. Assign a chart to a product category and every product in it inherits the chart, unless the product has its own assignment.
Can I override the styling?
Yes. Templates can be overridden from your theme under a sizer/ folder, and the storefront CSS exposes custom properties you can re-theme.
Is the modal accessible?
Yes. Sizer uses a native dialog element that is keyboard operable, focus-managed and screen-reader friendly.
What happens when a product has no chart?
Nothing renders. Sizer is graceful by design.
Can I show the chart without a modal?
Yes. Instead of a modal you can show the chart inline as a product tab.
Does Sizer pair with Swatch and Shortlist?
Yes. Swatch shows variations as swatches and Shortlist adds a wishlist. Sizer complements the product page with a size guide.
Add a size guide
Reusable charts, an accessible modal or tab, per product and per category. The full FREE edition under GPL.
Read the docsFREE is a complete size guide — PRO adds per-variation charts and unit switching.