About A/B Test Calculator
Compare A/B test conversion rates, lift, estimated confidence, and practical winner guidance. It runs entirely in your browser using client-side processing — your data never leaves your device. No signup, no ads, no watermarks.
Whether on desktop, tablet, or mobile, A/B Test Calculator works instantly with real-time results.
Key Features
Compare A/B test conversion rates, lift, estimated confidence, and practical winner guidance.
100% client-side processing — your data stays in your browser.
No signup, no ads, no watermarks — completely free.
How to Use A/B Test Calculator
1
Enter your visitors
2
Enter your conversions
Why Use This Tool
Works Everywhere
Fully responsive on desktop, tablet, and mobile — no app installation needed.
No Usage Limits
Use as many times as you need. No daily caps, throttling, or forced waits.
Frequently Asked Questions
What is A/B Test Calculator?
A/B Test Calculator is a free online tool from ToolsJungle that runs entirely in your browser. No signup required, no data uploaded.
Is A/B Test Calculator really free?
Yes — 100% free with no hidden costs, premium versions, or usage limits. ToolsJungle is committed to free tools for everyone.
Is my data safe?
Absolutely. All processing is client-side — your data stays in your browser and is never uploaded to any server.
Do I need an account?
No account, email, or registration needed. Open the tool and start using it immediately.
Use A/B Test Calculator Now — Free
No signup · No ads · Instant results · 100% private