Stackless

Best WooCommerce Checkout Plugins

Which WooCommerce checkout plugin fits your store? Picks by job, with current prices, renewal costs, Checkout block support and the catch for each one.

I get why choosing a WooCommerce checkout plugin feels confusing. Most lists put 20 plugins side by side but these plugins do different jobs. So you can end up paying every year for a funnel builder when your store only needed 1 extra field.

My advice is simple. I'd name the job first and then pick the plugin that does that job at the lowest yearly cost. If you want better layouts and order bumps without a yearly bill, my pick is Stackless. If you need abandoned cart emails or A/B tests today, I'd pick CheckoutWC instead.

I lead development of Stackless at Gatilab, so weigh that first pick with that in mind. It is a WooCommerce plugin that puts checkout layouts, order bumps and custom fields under one license, along with subscriptions and payment gateways. The CartFlows links below are affiliate links, and the other product links aren't.

What to Pick

The best WooCommerce checkout plugin depends on what your checkout is missing. These are my picks for each job:

Quick Comparisons

The prices below come from each product's pricing page on November 2, 2026. I've used the cheapest paid plan, and the renewal price is what you should budget for.

Plugin

First year

Renewal

Sites

Checkout support

Stackless

$99 once, or $39 a year

None on the $99 license

Unlimited

Block and classic

CheckoutWC

$249, or $899 once

$249 a year

1

Replaces the checkout with its own templates

CartFlows Starter

$99

$149 a year

1

Uses its own checkout step in a funnel

FunnelKit Basic

$99.50

$129 a year

1

Uses its own store checkout

Fluid Checkout PRO+

€99

Check at renewal

1

Block support not stated

Checkout Field Editor

Free

None

Not limited

Block and classic

Flexible Checkout Fields

Free

None

Not limited

Classic, with a separate plugin for block

The Stackless prices are launch prices. They rise to $399 once or $69 a year when the launch deal ends.

Check Your Checkout Type First

WooCommerce has 2 checkouts, and your choice of plugin depends on which one your store runs:

  • Checkout block: this is the current default. A new WooCommerce 11.2.1 store creates its Checkout page with this block.
  • Classic checkout: this is the older [woocommerce_checkout] shortcode, which older stores may still use.

WooCommerce's own $49 Checkout Field Editor shows why this matters. Its product page says it "works with the legacy checkout only", so it won't change the default checkout on a new store. It is wise to check this for any plugin before you pay.

My guide to customizing the WooCommerce checkout page shows how to find out which checkout you have.

Best WooCommerce Checkout Plugins

I've ordered these by the job they do, because a funnel builder and a field editor aren't really competing with each other.

Stackless

Stackless is my pick for a store that wants a better checkout without another yearly bill for each site. It gives you 5 checkout layouts, order bumps with take rate and revenue for each offer, paid checkout fields and a popup checkout. You can also put the checkout on any page. All of it works on both the block and classic checkouts.

Stackless Checkout Builder settings with a gallery of checkout layouts and previews
  • Price: $99 once or $39 a year for unlimited sites at launch prices, with a 14-day refund.
  • After a license ends: every module keeps working, and only updates and support stop.
  • Free version: Stackless Lite includes checkout consents and buy links but no layouts or order bumps.
  • The catch: it has no abandoned cart emails, A/B tests, side cart, thank-you page upsells or multi-step layout.
  • Track record: it is at version 1.8.0, with far less history than CheckoutWC.

CheckoutWC

CheckoutWC is my pick when you need conversion tools that Stackless doesn't have. Every paid plan includes abandoned cart emails, order bump A/B testing and a side cart with a free shipping bar. You also get thank-you page upsells and address autocomplete, which needs your own Google or Fetchify key.

  • Price: $249 a year for 1 site, $349 for 3 sites or $899 once for 1 site. Agency plans start at $499 a year for 10 sites.
  • Free version: CheckoutWC Lite has 1 template and a multi-step checkout.
  • The catch: it costs the most here for one store, and its templates turn off when a yearly license expires.

I've put the two side by side in my CheckoutWC vs Stackless comparison.

CartFlows

CartFlows is a funnel builder, and it is my pick when the checkout is one step in a longer sales path. The free plugin has 200,000+ active installs on WordPress.org. If you only want a cleaner checkout page, a funnel builder is more than your store needs.

  • Starter: $99 for the first year, renewing at $149, for 1 site.
  • Pro: $199 for the first year, renewing at $299, or $699 once, for 3 sites.
  • Suite: $299 for the first year, renewing at $449, or $999 once, for 30 sites. This plan also bundles cart recovery and a cart plugin.
  • The catch: the renewal is about 50% higher than the first-year price on each yearly plan.

FunnelKit

FunnelKit suits a store that wants funnels and email automation from one vendor. The Basic plan already includes a store checkout, multi-step templates, a field editor and abandoned cart recovery. The free plugin has 30,000+ active installs.

  • Basic: $99.50 for the first year, normally $129, for 1 site.
  • Plus: $149.50 for the first year, normally $299, for 2 sites. One-click upsells and A/B testing start here.
  • Professional: $199.50 for the first year, normally $399, for 3 sites. Automations start here.
  • The catch: all renewals are at full price, so the Plus plan doubles in its second year.

Fluid Checkout

Fluid Checkout is my pick for trying a multi-step checkout for free. The Lite plugin has 20,000+ active installs, and the paid PRO+ bundle adds more templates, an edit-cart option at checkout and express checkout buttons.

  • Price: Lite is free. PRO+ is listed at €99 a year for 1 site, down from €129, plus taxes where they apply.
  • The catch: its plugin page doesn't state Checkout block support, so you should test it first if your store uses the block.

Checkout Field Editor (Checkout Manager)

This free plugin is my pick when you only need to add or edit fields. It has 400,000+ active installs and works on both checkouts, with 10 field types on the Checkout block. The paid version adds types such as a date picker and file upload.

  • Price: the plugin is free, and the Pro version is paid.
  • The catch: it only handles fields, so your checkout layout stays the same.

Flexible Checkout Fields

Flexible Checkout Fields is a second free option to compare. It has 80,000+ active installs, and it is built for the classic checkout. A store on the Checkout block needs the vendor's separate Flexible Checkout Fields for Blocks plugin, so you should install the one that matches your checkout.

What These Plugins Cost Over 3 Years

First-year discounts make these plugins look closer in price than they are. This example uses 1 store on the cheapest paid plan for 3 years.

Plugin

Year 1

Year 2

Year 3

3-year total

Stackless, one-time license

$99

$0

$0

$99

FunnelKit Basic

$99.50

$129

$129

$357.50

CartFlows Starter

$99

$149

$149

$397

CheckoutWC 1 Site

$249

$249

$249

$747

I left Fluid Checkout out of the table because it lists euro prices and doesn't state a separate renewal price. It would come to €297 if the €99 rate holds.

The gap grows with more stores. CheckoutWC's 10-site plan comes to $1,497 over 3 years, and the same Stackless license covers every site. A store that recovers a lot of lost carts may still earn that money back, so compare these totals against what the extra tools can bring in.

Do You Need a Checkout Plugin?

You may not need one at all. The Checkout block already lets you show or hide the Company, Address line 2 and Phone fields, and it can require a terms checkbox. If that covers your list, you should stay on the default checkout and avoid one more plugin.

I'd add a plugin when you can name the missing thing, such as a paid field or an order bump. Buying one because a checklist says every store needs it isn't a good idea, because the checkout is the last page where you want a plugin conflict.

How to Test a Checkout Plugin

A checkout plugin touches every order, so I'd never try one on a live store first. These steps cover the failures that cost you sales:

  1. Copy your store to a staging site.
  2. Install the plugin and turn on only the feature you need.
  3. Place a test order with each payment method you offer, including express buttons.
  4. Try a coupon and a failed payment.
  5. Refund the test order.
  6. Check the order screen and customer emails for any new fields.
  7. Repeat the checkout on a phone.

FAQs on WooCommerce Checkout Plugins

What is the best WooCommerce checkout plugin?

It depends on the job. I'd pick Stackless for layouts and order bumps without a yearly bill, CheckoutWC for abandoned cart emails and A/B tests, and CartFlows for sales funnels. I lead Stackless, so compare it against the catches listed above.

Is there a free WooCommerce checkout plugin?

Yes. CheckoutWC Lite and Fluid Checkout Lite offer free multi-step checkouts, and Checkout Field Editor (Checkout Manager) is free for custom fields. Stackless Lite is free too, but it doesn't include checkout layouts or order bumps.

Do all checkout plugins work with the Checkout block?

No. Support varies by plugin, and WooCommerce's own Checkout Field Editor works with the legacy checkout only. You should confirm block support on the plugin's own page before you buy.

Final Remarks

If you're still unsure, I'd write down the one thing your checkout can't do today. If it is a layout, a few offers or some extra fields, I'd try the Stackless demo store first and see whether it does enough. If it is lost carts, I'd go straight to CheckoutWC.

One plugin instead of the add-on stack.

Stackless for WooCommerce and EDD. Every module, unlimited sites, from $99 once.