Jarstak A/B Testing tool for E-commerce

Test anything on your store. No code, no agency, no cookies.

3 followers

Test anything on your store. No code, no agency, no cookies.

3 followers

Jarstak is a visual A/B testing editor for e-commerce teams. Point, click, and edit any element on your live store — headlines, buttons, prices — and turn it into a statistically valid test in minutes. No developer needed. No native module to install. Deploys via GTM on any stack — Shopify, WooCommerce, PrestaShop, SPA, SSR. Built GDPR-first: first-party variant assignment only, no third-party cookies. Available in 6 languages. Priced for small teams, not enterprises.

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Launch tags:Marketing•Developer Tools•E-Commerce

Launch Team / Built With

ShiftAI that works across your Mac.

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Maker

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Hey Product Hunt 👋 I'm Fabien, co-founder of Jarstak. We built this because we spent years running A/B tests for e-commerce clients and couldn't find a tool that was affordable, GDPR-compliant, and worked on any stack without a developer. So we built it ourselves — 14 months, two co-founders, zero VC. What I'd love you to try: install the GTM snippet, open the editor, and launch a headline test. Should take under 5 minutes. If it doesn't, tell me why — I read every comment. Happy to answer any questions on the technical side or the CRO side.

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4mo ago

How does the GTM deployment actually handle variant assignment on SSR pages without flashing the original content first?

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4mo ago

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