Analyze the results of A/B tests
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What is this?

IsValid automates statistical tests for A/B experiments. It will calculate significance and confidence intervials.

In short, you can use it to figure out what, if anything, the result of an A/B test means.

How can I use it?

I host this exact code at If you want, you can host it yourself.

There is also an API (which you could host yourself!) that you can read about here.