Experiments

The #1 Open-Source Feature Flag & Experimentation Platform

Analyze all your data, run unlimited experiments, and understand your product like never before.

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Get Experimenation Playbook

Run Unlimited New Experiments Simultaneously

Choose from three flexible experiment types, including two no-code options.

Linked Feature Flags

Modify source code from within GrowthBook for easy server-side A/B Testing.

Visual Editor

Optimize messaging, button colors and other UI elements without waiting on developers.

URL Redirects

Orchestrate seamless experiments across marketing touchpoints—without engaging your IT team.

Multi-Arm Bandits

Test multiple variants simultaneously and have traffic dynamically weighted to the winning variant.

Analyze Existing Experiments

Unlock hidden insights from your data

Connect to Your Data

GrowthBook is warehouse native—it works with your data where it already lives, allowing you to maintain control and avoid vendor lock-in. We're integrated with all major SQL data sources, plus tools like Mixpanel and Google Analytics.

Build Out Your Metric Library

GrowthBook takes the sting out of migrating hundreds of metrics to your new experimentation platform. With GrowthBook, a couple of lines of SQL is all it takes to write a metric to your exact specifications.

Add Metrics Retroactively

GrowthBook allows you to add metrics to past experiments. Now you can capture new insights without running a new experiment.

Manage the Experiment Lifecycle from a Centralized Hub

Ideate

Align your team's efforts around a clearly written hypothesis statement for each experiment. Easily reference statements as catalysts for new ideas.

Implement

Select your experiment type. Use existing feature flags or choose one of our no-code options, like the Visual Editor and URL Redirects. Free up developer time and empower your Product and Marketing teams to experiment independently.

Measure

Track key metrics and gain insights into user behavior with customizable dashboards and reports. Drill down for deeper analysis.

Automatically collect experiment results into a presentation format for easy sharing and viewing across your team. Highlight comparative views of variations, call out primary metrics and keep data effortlessly in sync.

Harness the Power of Granular Targeting

Target the Right Users

Define precise targeting rules based on various user attributes.

Build & Apply Complex Rules

Combine different attribute values using intuitive logic operators.

Organize & Reuse

Simplify experiment management with features like projects, namespaces and saved groups.

Prerequisite Targeting

Ensure specific conditions are met before users experience an experiment variation.

“We’ve seen clear improvements in conversion and satisfaction. Experimentation has shown what customers actually do rather than what we assume they’ll do.”

MAREK MACIUSOWICZ, Head of Engineering, Marketplace & Payments