Building Custom Checkout Experiences That Convert

Realistic photo of a user interacting with a sleek online checkout form on a laptop, highlighting the impact of good UX on conversion rates.

Your checkout page is more than just the final step—it’s where interest turns into income. A poorly designed checkout experience can lead to cart abandonment, while a smooth, trustworthy flow can significantly increase conversion rates.

If you’re still using a generic, third-party hosted checkout page that redirects users away from your site, you’re missing out on both control and credibility.

Why Checkout UX Directly Impacts Conversions

Infographic funnel chart illustrating increasing drop-off rates during checkout stages, with 80% drop-off at the review step.

Studies show up to 70% of online carts are abandoned—often due to friction during checkout. Things like multiple form fields, unexpected fees, forced account creation, or redirection to unfamiliar payment pages can all deter a customer from completing their purchase.

A custom checkout flow solves this by keeping users engaged, informed, and confident throughout the transaction process.

Benefits of a Custom Checkout Flow

Here’s what you gain by building a checkout tailored to your business:

Brand Control: No redirection to third-party domains. Your brand stays front and centre from cart to confirmation.
Streamlined Forms: Collect only the data you need—faster for the customer, better for your conversions.
Flexible Layout: Rearrange components to fit your buyer journey. Add loyalty rewards, donation options, or discount codes.
Improved Mobile Experience: Mobile-first design ensures a smooth purchase on any device.
Increased Trust: Display trust badges, refund policies, or customer support info—right when buyers need reassurance.

Knarkz Payment Gateway gives you full control over the checkout layer—offering powerful APIs and SDKs that let you build fast, secure, and on-brand payment experiences.

How to Implement a Custom Checkout

Photograph of a developer and designer reviewing checkout wireframes on a desktop screen, discussing the custom build process.

You don’t need to reinvent the wheel. A modern custom checkout can be built quickly using pre-integrated tools and hosted securely on your infrastructure.

Use Hosted Fields or Embedded Elements: Avoid redirecting customers off-site.
Optimise for Speed and Simplicity: Limit fields, use auto-fill, and offer express options like Apple Pay or Google Pay.
Test and Improve: A/B test layouts, button placements, and field orders to reduce friction.