Open Source Feature Flagging and Remote Config Service. Host on-prem or use our hosted version at https://flagsmith.com/



Feature Flag, Remote Config and A/B Testing platform, Flagsmith

Stars Docker Pulls Docker Image Size Join the Discord chat Coverage Built with Depot

Flagsmith is an open source, fully featured, Feature Flag and Remote Config 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.

Get up and running in less than a minute:

curl -o docker-compose.yml https://raw.githubusercontent.com/Flagsmith/flagsmith/main/docker-compose.yml
docker-compose -f docker-compose.yml up

The application will bootstrap an admin user, organisation, and project for you. You'll find a link to set your password in your Compose logs:

Superuser "admin@example.com" created successfully.
Please go to the following page and choose a password: http://localhost:8000/password-reset/confirm/.../...

Note: This setup uses http:// for local development. If you've configured SSL for your local environment, you may use https:// instead. For any production deployment, always use https://.

Flagsmith Screenshot


  • Feature flags. Release features with confidence through phased roll-outs.
  • 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.

Trying Flagsmith

Flagsmith hosted SaaS

You can try our hosted version for free at https://flagsmith.com/

Flagsmith Open Source

The Flagsmith API is built using Python 3, Django 2, and DjangoRestFramework 3. You can try the application out using:

We also have options for deploying to AWS, GCP, Azure and On-Premise. If you need help getting up and running, please get in touch!


This repository is formed of 2 core components, the REST API (found in /api) and the web-based administrator dashboard (found in /frontend) that you can use to manage Flagsmith. Technical documentation for each component can be found at the API and Frontend pages within our Documentation

These two components run as separate applications. The web-based dashboard is a single page app that communicates via REST calls to the API.



Thank you to Uffizzi for providing ephemeral environments to preview pull requests.