Flagsmith
Dashboard, API and SDKs for adding Feature Flags to your applications (alternative to LaunchDarkly).
- Developer Tools
- Python
- BSD-3-Clause
- Docker
- Actively maintained
GitHub stats
- GitHub stars
- 6,587
- Forks
- 579
- Open issues
- 603
- Commits, last 12 months
- 1,296
- Last commit
- Oct 5, 2026
- Latest release
- v2.280.0Oct 5, 2026
- Created
- Jun 5, 2018
Data from the GitHub API, refreshed daily.
About Flagsmith
Dashboard, API and SDKs for adding Feature Flags to your applications (alternative to LaunchDarkly). Flagsmith is open source under the BSD-3-Clause license and written mainly in Python, so you can read the code, run it on your own hardware and keep full control of your data.
The project has 6,587 stars and 579 forks on GitHub, with 1,296 commits over the last year. It ships a Docker image, which makes it a good fit for a small VPS or a home server running Docker Compose.
Topics
- feature-flags
- continuous-integration
- remote-control
- ci
- cd
- feature-toggles
- feature-flag
- remote-config
- python
- feature-flagging
Repository preview
Similar apps
More apps like Flagsmith
Other projects in Developer Tools, ranked by GitHub stars.
OpenHands
OpenHands/OpenHands
Platform for AI software development agents that write code and run commands.
AI & LLM ToolsTypeScriptDockercode-server
coder/code-server
VS Code in the browser, hosted on a remote server.
Developer ToolsTypeScriptDockerSentry Self-Hosted
getsentry/sentry
Powerful error tracking platform with wide language support and a robust API.
Developer ToolsPythonPostHog
PostHog/posthog
Product analytics, session recording, feature flagging and a/b testing that you can self-host (alternative to Mixpanel, Amplitude, Heap, HotJar, Optimizely).
AnalyticsPythonPortainer
portainer/portainer
Web UI for managing Docker, Swarm and Kubernetes environments.
Self-hosting PlatformsTypeScriptDockerLangfuse
langfuse/langfuse
LLM engineering platform for model tracing, prompt management, and application evaluation. Langfuse helps teams collaboratively debug, analyze, and iterate on their LLM applications such as chatbots…
Developer ToolsTypeScriptDocker
What is Flagsmith?
Flagsmith is a free, open-source app you can host on your own server, listed in our Developer Tools category. Dashboard, API and SDKs for adding Feature Flags to your applications (alternative to LaunchDarkly). The source code lives at github.com/Flagsmith/flagsmith, where it has 6,587 stars.
Is Flagsmith free and open source?
Yes. Flagsmith is open-source software released under the BSD-3-Clause license, so you can self-host it at no cost. You only pay for the server it runs on, and some projects also offer an optional paid cloud plan.
Can I run Flagsmith with Docker?
Yes. Flagsmith provides a Docker image, so you can run it on any Linux server with Docker and Docker Compose installed. The project README lists the image name and the environment variables to set.
What are the best alternatives to Flagsmith?
Popular open-source alternatives to Flagsmith include OpenHands, code-server and Sentry Self-Hosted.
Is Flagsmith actively maintained?
The most recent commit to Flagsmith was on Oct 5, 2026 with 1,296 commits in the past twelve months. The latest release is v2.280.0, published Oct 5, 2026. Check the open issues on GitHub to gauge how quickly maintainers respond.