GrowthBook
GrowthBook is an open source feature-flagging and experimentation platform built to help teams release code confidently and measure the impact of product changes using their own data. It enables the creation and management of feature flags of various types (Boolean, number, string, JSON) with targeting rules, percentage roll-outs, safe ramp-ups, and experiment assignment. The platform is warehouse-native, allowing you to connect your data where it already lives (SQL data warehouses, Mixpanel, Google Analytics, and more) and run experiments and analyses without sending raw user-level PII to a third-party service. It supports modular usage; you can adopt just feature flagging, just experiment analysis, or both together. Key capabilities include: high-performance lightweight SDKs (enabling billions of feature lookups per day), a visual editor for no-code AB tests, and experiment reporting with advanced statistical methods.
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Flagship.io
Flagship.io is a feature flagging platform for modern engineering and product teams that eliminates the risks of future releases by separating code deployments from these releases. With Flagship, you can accelerate development cycles and ship anywhere anytime, even on Friday nights.
With Flagship, we push the concept of feature flags to the next level giving you full control over the release process. With Flagship, you can:
- Switch features on or off through remote config.
- Separate code deployments from future releases, allowing engineering teams to deploy code at their pace while enabling product teams to release these features when they’re ready.
- Automatically roll-out your features gradually to monitor performance in line with their associated KPIs and gather feedback from your most relevant users.
- Roll back any feature should any issues arise while testing in production while your team analyzes the problem.
- Segment users by granting access to a feature
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Flags SDK
Flags SDK is an open source library designed for integrating feature flags into Next.js and SvelteKit applications. It allows developers to manage and implement feature flags, providing flexibility with integrations for any flag provider. The SDK supports AB testing, controlled rollouts, and experimentation, helping developers ship features faster and more efficiently. It features a simple, declarative API to define and use flags, making integration effortless. With Flags SDK, developers can release new features strategically, test them in production without breaking apps, and experiment with confidence. The toolkit ensures the website remains fast while following best practices for feature flag usage.
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Flagsmith
Flagsmith is a fully supported open source Feature Flag, Remote Config, and A/B testing service. Use our hosted API, deploy to your own private cloud, or run on-premise.
Flagsmith makes it easy to create and manage features flags across web, mobile, and server side applications. Just wrap a section of code with a flag, and then use Flagsmith to toggle that feature on or off for different environments, users or user segments.
Feature flags - Release features with confidence through phased rollouts.
Remote config - Easily toggle individual features on and off, and make changes without deploying new code.
A/B and Multivariate Testing - Use segments to run A/B and multivariate tests on new features. With segments, you can also introduce beta programs to get early user feedback.
Organization Management - Organizations, projects, and roles for team members help keep your deployment organized.
Integrations - Easily enhance Flagsmith with your favourite tools.
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