EStore Tools

Shopify Scripts to Functions Converter

Paste your deactivated Shopify Script and find out whether a native setting already replaces it, or which Function to build instead.

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Shopify Scripts is gone

Shopify deprecated the Script Editor on 30 June 2026. Every script that was still live was deactivated at that point and no longer runs at checkout, so if a discount, shipping rule or payment method your script controlled has quietly stopped working, this is why.

Check for a native setting before building anything

Script didCheck first
A simple percentage or fixed discountDiscounts in Shopify admin: automatic discounts, tiered/"Buy X get Y" discounts and discount combination settings cover a lot of what scripts used to do by hand
A shipping rate ruleSettings > Shipping and delivery: rate names, free-shipping thresholds and zone-based rates
Something those settings can't expressA Shopify Function (see below)

If you genuinely need a Function

  • Discount function: replaces a line item, cart or shipping discount script.
  • Delivery customization function: replaces a script that hid, reordered or renamed shipping rates.
  • Payment customization function: replaces a script that hid, reordered or renamed payment methods.

Functions are developer work: code written in JavaScript or Rust, built and deployed through an app with Shopify CLI, not pasted into admin. The tool gives you a labeled scaffold to start from, and the exact input/output shape for your chosen target lives at shopify.dev's Function API reference, which changes with the API version, so check it before you ship.

Questions people ask

When was Shopify Scripts deprecated?

30 June 2026. Every previously published script was deactivated then, so a checkout customization that's stopped working around that date is almost certainly this.

Do I need a developer to replace my script?

Only if it needs a Function. Many scripts turn out to be replaceable by a native Discounts or Shipping setting, which any store owner can set up without code.

Can I paste a Function's code straight into Shopify admin?

No. Functions are built and deployed as an app extension through Shopify CLI, unlike the old Script Editor which ran code pasted directly into checkout settings.

What language are Functions written in?

JavaScript or Rust are the common choices, compiled to WebAssembly; Rust is Shopify's recommendation for performance-sensitive logic.

The scaffold has comments instead of real code in places. Why?

The exact input and output field names for each Function target can change between API versions, so the tool marks those parts for you to confirm against the current reference rather than guessing and shipping something wrong.

Related tools

Shopify Discount Combination CheckerEnter your discounts and a sample cart to see which ones Shopify applies, why the others don't, and what the shopper pays.Shopify GraphQL Query GeneratorDescribe what data you need in plain English and get an Admin API query or mutation, with pagination and cost notes.Why Isn't My Shopify Store on Google?Find what's keeping your Shopify store out of Google: password page, noindex, robots.txt, sitemap, domain setup and Search Console.EU Withdrawal Button for ShopifyAdd the EU's two-step “withdraw from contract here” function to Shopify: a page section, a footer link and the acknowledgement email.

Want this builtinto your store?

I'm Emmanuel, a Shopify and WooCommerce developer. If this tool pointed at something you'd rather have fixed for you (a faster store, cleaner product data, a migration, a custom feature), send me a note.

Emmanuel Asika

Emmanuel Asika

Shopify & WooCommerce developer, Dublin

I build and fix online stores: new builds, migrations, speed, SEO and the custom bits apps can't do.

hello@emmanuelasika.com
See my work

Last reviewed 30 September 2026.

Sources: Shopify Help: Script Editor (deprecated) · Shopify.dev: Function APIs · Shopify.dev: Build discount functions