Free CRO & A/B Testing Tools

Find out how many visitors you need before your test results are statistically reliable.

Estimate how long to run your experiment given your current traffic and conversion rate.

Check whether your A/B test results are statistically significant before calling a winner.

Check whether your traffic split is broken with a chi-square sample ratio mismatch test.

Find out in plain English whether your site has the traffic to support A/B testing.

Type your URL and get a Mida score, your tech stack, quick checks and 3 tests worth running on your homepage, each with its benchmark win rate.

Paste your page URL and MidaGX reads the live headline, then writes a stronger variant you can launch as a test.

Upload screenshots of your control and variant — the AI generates a structured experiment hypothesis for you.

Describe your test idea in plain text and get a well-structured hypothesis ready in under 10 seconds.

Optimize product photos, collection images, and banners before uploading to Shopify.

Compress PDP hero images, product galleries, and banners for faster ecommerce pages.

Shrink product photos for PDPs, marketplaces, ads, and email without killing quality.

Convert JPEG and PNG images to smaller WebP files for faster websites and product pages.

Resize and compress product photos for Amazon listings, ads, and A+ content workflows.

Create eye-catching social proof notifications in minutes — no coding required.

Build customizable notification banners that drive urgency and showcase offers — no code required.

146+ interactive checks across homepage, collections, product pages, cart, checkout, and trust — with examples for every item.

Turn your A/B test results into clean, shareable images — perfect for reports, social media, and client decks.

Organize campaign attribution with a dynamic UTM template that keeps your analytics clean and consistent.

A step-by-step ecommerce experimentation playbook with test ideas, frameworks, and prioritization guidance.