Open Source Feature Flag Management
Flagsmith is an open source feature flag and remote config service.
Feature flags
- 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.
- 1
Flag Analytics
Flag analytics helps you understand how your features are performing.
- 2
Control and security
The audit log allows you to see all the changes made, who made them, and when; so tracking is simple and there are no mysteries.
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Powerful Integrations
Integrate Flagsmith with the products you already use - Segment, Datadog, Mixpanel, and more.
Remote config
- With Flagsmith’s remote config capabilities, you can easily change or test out different feature properties without deploying new code.
- Configure different elements of your features – like the font size of a header or color of a CTA button – directly through Flagsmith and release the changes to users in just a few clicks.
Use cases
- 1
Decouple deploy and release
Achieve continuous deployment by deploying behind flags, and then only toggling them on when a release is scheduled.
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Canary Deployments
Using Flagsmith, you can release new features to a small percentage of your users initially, and then enable them for the rest of your users over time.
- 3
A/B/n Testing
Once you’ve integrated the Flagsmith SDK and gated a feature with a flag, you can then easily use that flag to power A/B/n tests.
Open source
- The vast majority of the platform is open source.
- Most of the platform is under the BSD-3-Clause license. A small number of repositories are under the MIT license.
The licensing for each repository is clearly
shown in GitHub.
Enterprise
- Several enterprise level features are not open source.
- They are source available, however to use them in production we require that you have a valid Flagsmith Enterprise license.
Use our hosted API, deploy to your own private cloud, or run on-premise







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