Make every step to purchase work harder

Your checkout should remove friction, not introduce it. We use Shopify Checkout Extensibility to create tailored checkout experiences that support your brand, improve usability, and help customers move confidently toward purchase.

“Our sales have increased significantly, 50% increase in conversions after getting services from the Bigfolio hit the ground running.”
Hear from Joden

Trusted by ambitious Shopify Plus brands

Our Checkout
Extensibility Process

Effective checkout optimization starts with understanding where customers encounter friction. We combine UX strategy, Shopify Plus expertise, extensibility, development, and rigorous testing to improve the experience without compromising the checkout foundation.

Discovery, Audit & Checkout Strategy

We begin by reviewing the existing checkout, customer journey, and conversion opportunities. This gives us a clear foundation for the right extensibility strategy.

Checkout Audit: Review the existing checkout, customer journey, functionality, performance, and areas creating unnecessary friction.
Requirements Gathering: Identify brand, business, customer, compliance, and legal requirements for the checkout experience.
Extensibility Strategy: Define the right approach for checkout customization while keeping the implementation scalable and maintainable.

Checkout Customization & Development

We turn the approved strategy into tailored checkout experiences that stay within Shopify's extensibility framework.

Checkout Customization: Extend the Shopify checkout experience with functionality designed around your business and customer requirements.
Custom Checkout UI: Create thoughtful interface experiences that make critical checkout information and actions clearer for customers.
Shopify Plus Development: Build checkout functionality within the Shopify ecosystem while maintaining a flexible technical foundation.

Extensions, Integrations & Functionality

Checkout becomes more effective when it connects to the systems and functionality your business already uses.

Checkout App Extensions: Develop tailored extensions that add useful functionality without creating unnecessary checkout friction.
Third-party Integrations: Connect checkout requirements with relevant payments, subscriptions, loyalty, analytics, and other commerce systems.
Custom Functionality: Build targeted solutions for business requirements that cannot be addressed through standard checkout capabilities.

QA, Launch & Continuous Optimization

Before launch, we rigorously test checkout flows and extensions. After launch, we keep optimizing the experience as requirements evolve.

Checkout QA: Test functionality, extensions, responsive experiences, checkout flows, browsers, devices, and critical edge cases.
Tracking & Validation: Coordinate deployment, tracking, analytics, final validation, and live checkout testing before release.
Ongoing Optimization: Monitor the checkout experience, identify conversion opportunities, resolve issues, and continuously improve performance.

Is this the right fit ?

Our Checkout Extensibility service isn't for everyone. Here's who it's built for.

Who it's for

Shopify Plus brands looking to improve checkout usability, functionality, and conversion opportunities.
Brands with checkout requirements that need more flexibility than standard Shopify functionality provides.
Brands that want a branded checkout experience without compromising Shopify's underlying commerce infrastructure.
Brands looking to introduce custom checkout functionality through a scalable extensibility approach.
Brands that value conversion-focused UX and technical expertise throughout the checkout journey.

Who it's not for

Brands looking for the cheapest checkout customization option or a quick workaround.
Brands that only need standard Shopify checkout functionality with no custom requirements.
Brands looking for checkout changes without considering UX, conversion, performance, or maintainability.
Brands expecting unrestricted checkout customization without working within Shopify's extensibility framework.
Brands looking for a one-off developer without strategic guidance, testing, or ongoing support.

Bigfolio has been an outstanding technology partner for Fandiem. They led our migration to Hydrogen and built the custom platform behind our charity campaigns, auctions, fundraising operations, and complex commerce workflows.

What sets Bigfolio apart is their ability to understand complex business requirements and turn them into fast, scalable, well-engineered solutions. Their technical expertise, problem-solving, communication, and attention to detail have been exceptional throughout our partnership.

I highly recommend Bigfolio to any company looking for a trusted Shopify Plus and custom commerce partner.

+28%

Campaign Participation

+42%

Donation Revenue

90+

Auction Engagement

90+

Platform Performance

Ross Gassman

Co-Founder, Fandiem Inc.

Fandiem Shopify Plus storefront built by Bigfolio

We're a full service
shopify plus agency

Bigfolio partners with growth-focused ecommerce brands to design, build, and scale high-performing Shopify Plus storefronts. From Shopify Plus development to Hydrogen headless commerce, we bring the technical depth needed to move complex projects forward.

Tight deadlines, evolving priorities, complex requirements. We have handled them all. Our approach combines Shopify CRO, thoughtful UX design, and technical expertise with no-nonsense project management to keep every build focused, efficient, and built to perform.

We are not a build-and-disappear agency. Once your storefront is live, our team stays on for ongoing optimization, new feature rollouts, and the kind of long-term support that keeps performance improving quarter after quarter, year after year.

750+

Designed Shopify storefronts

1.2B+

Revenue generated in 2025

5 Star

Registered in Shopify Partner Directory

Frequently
Asked Questions ?

Get clear answers about Checkout Extensibility, checkout customization, Shopify Plus development, app extensions, conversion, and ongoing optimization.

Explore More
shopify plus services

We partner with ambitious Shopify Plus brands that want every part of the commerce journey working harder. From checkout experiences to broader ecommerce development, we combine strategy, UX, and technical execution to support growth.

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Make every step to purchase work harder