# A/B testing, built on your feature flags

Canonical: https://brew.new/templates/flagsmith/a-b-testing-built-on-your-feature-flags

Brand: flagsmith.com
Category: product-launch

![Preview of A/B testing, built on your feature flags](https://cdn.brew.new/email-preview-169244b9b14082bc-tracking_r57h2k59yh4c8vs7zz3hz30rk58gpahf-1792570855601.png)

## Email content

Articles App GitHub Our story

Hi there,

You’ve split traffic with a multivariate flag. Now you need to know whether the change worked, which means tracking exposure and conversion events in other tools, then piecing the results together yourself.

Today we launched Flagsmith Experiments, which puts A/B testing on the same flags you use to release.

You start with a flag, pick a metric from events you already track, and get a clear read on which variant is winning.

Then you roll out the winner or roll back from the same place.

It's in public beta, free in open source, and included in every Flagsmith Cloud plan, even Free. SDKs for JavaScript, React, Python, Java, Node.js, Go, and Flutter.

Self-host it, use our managed warehouse, or connect your own ClickHouse or Databricks.

See how it works →

We're on Product Hunt today too, answering questions all day.

Asaph

Head of Product, Flagsmith

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Flagsmith, 86-90 Paul St, London, United Kingdom EC2A 4NE

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