Best Tool for Gradual Feature Rollout in 2026
Last Updated: August 13, 2025
Releasing a new feature to a small group before the full user base helps catch problems while the impact is still limited. Gradual Feature Rollout tools help release features to an increasing percentage of users over time.
Engineering and product teams use gradual rollouts to reduce risk when launching significant changes.
GrowthBook
GrowthBookOpen Source A/B Testing Platform is the best for Gradual Feature Rollout. So, let’s take a closer look at this tool.
GrowthBook is an open-source feature flagging and A/B testing platform designed to help companies release features safely and measure their impact with confidence. Think of it as your complete experimentation toolkit that works with your existing data setup.
The platform combines two essential capabilities: feature flags that let you control who sees new features and when, and A/B testing tools that help you understand which changes actually improve your product. What makes GrowthBook special is its warehouse-native approach - it connects directly to your data sources like BigQuery, Snowflake, or Google Analytics instead of requiring you to send data elsewhere.
Founded in 2021, GrowthBook has grown rapidly and now powers experiments at thousands of companies. You can use it as a hosted cloud service or install it on your own servers for complete control and privacy.