FlexOptions

Custom product options for Shopify — swatches, text fields, file uploads and calculated pricing — without creating a product variant for every combination.

Open FlexOptions from your Shopify admin under Apps.

• No variant explosion. Selections travel as cart line item properties, so your products keep the variants you actually sell.
• Priced at checkout, not in the browser. Option surcharges are applied server-side by a Shopify Function, so what a customer is shown is what they are charged.
• Clean removal. Uninstalling deletes the app’s metafields, its cart transform and any customer uploads it was holding.