How to add carbon-neutral checkout for Shopify, WooCommerce & BigCommerce?
Learn how to add carbon-neutral checkout on Shopify, WooCommerce, and BigCommerce, compare apps and funding models, and understand customer billing.
A carbon-neutral checkout option can be a customer contribution or merchant-funded offset; some options cover shipping rather than the whole order. Choose an app that supports your platform, decide who pays, then test how the amount appears in checkout, receipts, refunds, and offset records.
How can I add a carbon-neutral checkout option on Shopify, WooCommerce, and BigCommerce?
Install a platform-compatible app, configure who pays and how the contribution is calculated, then test a full order before launch. The options below differ in whether they offer customer opt-in, merchant-funded offsets, or additional services:
| Platform | Options | What they fit |
|---|---|---|
| Shopify | Shopify Planet, EcoCart, Coral Carbon Offset | Planet offers customer-paid, merchant-paid, or combined carbon-neutral shipping. EcoCart supports customer- or merchant-funded carbon-neutral orders. Coral describes product-footprint calculations and a customer offset option at checkout. |
| WooCommerce | DataFirefly Carbon Footprint + Offset Checkout, Checkout Contributions, CarbonGuru | DataFirefly adds an opt-in calculated offset to checkout. Checkout Contributions can collect a climate contribution, but you must choose and pay the cause yourself. CarbonGuru automatically offsets orders at the merchant’s expense, not the customer’s. |
| BigCommerce | EcoCart, Corso, CarbonGuru | EcoCart offers a customer-facing carbon-neutral order option. Corso combines a shipping-offset offer with shipping protection. CarbonGuru supports automatic, merchant-funded order offsetting rather than a customer checkout contribution. |
These are different trade-offs, not interchangeable features: Planet is focused on shipping, Corso bundles protection, and merchant-funded CarbonGuru does not add a customer payment option. On WooCommerce, Checkout Contributions is a flexible collection tool, not an offset provider; DataFirefly says its plugin records contributions but does not automatically buy credits. Check app compatibility with your theme and checkout type before installing, especially if your store uses WooCommerce Checkout blocks. (help.shopify.com)
Which apps support carbon-neutral checkout on each platform?
Shopify Planet, EcoCart, and Coral are options to investigate for Shopify; DataFirefly is a direct opt-in checkout plugin for WooCommerce; and EcoCart and Corso offer BigCommerce integrations. Features vary: for example, Shopify Planet’s customer contribution is specifically for shipping, while DataFirefly calculates product and transport footprint estimates. (help.shopify.com)
For WooCommerce, Checkout Contributions can display an environmental contribution but leaves fund management to the merchant. CarbonGuru is a better fit if you want to cover offsets yourself without asking shoppers to pay extra. On BigCommerce, Corso may suit stores that also want shipping protection; merchants seeking only a carbon option should compare its combined offer with EcoCart. (woocommerce.com)
How do I implement it on Shopify Plus (checkout extension)?
For Planet, install the app, activate a “Customers choose” or “Combined” subscription, then add its checkout block in Shopify admin under Settings → Checkout → Edit theme → Apps → Shopify Planet → Add to shipping. Shopify says this extension requires Shopify Plus and lets shoppers add $0.50 USD for carbon-neutral shipping, as checked November 13, 2026. (help.shopify.com)
For another app, confirm it specifically supports an extension in the checkout step where you want the option. In the checkout editor, add the installed app block to a supported placement, configure its wording and display, and test the flow on mobile and with Shop Pay if relevant. Shopify restricts UI extensions on the information, shipping, and payment steps to Plus; an app that only adds a cart-page widget is not the same as an in-checkout extension. (help.shopify.com)
How are carbon offsets billed and shown to customers?
Billing depends on the app and who pays. Shopify Planet bills monthly: customer contributions are billed to the merchant, while the “All shipments” plan charges the merchant for offsets; Shopify says it takes no cut and that 100% of funding goes to removal projects. EcoCart’s terms describe offset charges plus service transaction fees, with payment by the merchant or end customer depending on the arrangement. (help.shopify.com)
Customer-funded amounts should be clearly described before purchase and shown as a separate checkout line or fee, then carried into the order confirmation and refund handling. DataFirefly displays the estimated footprint and optional fee, but says merchants must purchase credits separately; WooCommerce Checkout Contributions likewise sends funds through the normal payment flow and leaves the merchant responsible for directing them. Don’t imply an order is fully carbon neutral unless your calculation, funding, and offset purchase support that claim. (datafirefly.com)
