GoodUI

Overview

GoodUI is a curated database of A/B tested user interface patterns and design experiments from leading companies like Amazon, Netflix, Airbnb, Etsy, Google, and Booking.com. It documents the results of real-world conversion optimization tests across landing pages, product pages, checkout flows, and signup forms.

The platform helps product designers and conversion rate optimization specialists avoid guesswork by learning directly from experiments that competing companies have already run. Users browse tested patterns organized by screen type (home, product listing, checkout, signup) and by design tags (forms, headlines, buttons, pricing, social proof).

Key Benefits

• Access to documented A/B test results from major e-commerce and SaaS companies with documented statistical power at 5% MDE.
• Patterns organized by screen type (landing pages, product listing, checkout, signup) and design element (forms, headlines, buttons, pricing).
• Discover "leaked" A/B test experiments showing both winning and losing variants side-by-side with implementation dates.
• Contribute your own A/B test results and join a community of conversion optimization professionals.
• Weekly email digest with up to one new pattern or test result delivered automatically.

How It Works

You browse the pattern library by screen type or design tag, review documented A/B tests run by named companies, and see which variant won and the date it was implemented. You can contribute your own test results through the platform and receive weekly emails featuring the newest tested patterns discovered by the community.

Use Cases

• E-commerce conversion specialists optimizing product pages, checkout flows, and add-to-cart buttons for higher transaction rates.
• SaaS product managers testing signup flows, onboarding callouts, and pricing page layouts to improve activation metrics.
• Landing page designers validating layout choices, headline variations, and social proof elements before running their own tests.
• Design researchers collecting evidence of UI patterns that improve specific metrics like sales, signups, or lead generation across industries.
• UX teams at companies avoiding failed design choices by reviewing documented losing variants alongside winning implementations.

Why Choose This Product

GoodUI is best suited for conversion rate optimization professionals, product designers, and marketing teams who want to learn from real experiments rather than design by intuition alone. The platform covers e-commerce, SaaS, and lead-generation contexts, though the focus is heavily skewed toward ecommerce and subscription product testing.