Best Split-testing tools and stacks in 2026

Hand-picked split-testing stacks for founders, indie makers, and small teams. Each stack lists the exact tools, maps the integrations, and walks through setup step by step. Pick one and start shipping.

Run A/B tests on your site

Stop guessing what works. Test it with real users and let the data decide.

View setup guide

Tools used across split-testing stacks

PostHog Mixpanel Vercel

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