An open source, self-hosted, enterprise-ready, feature management solution

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Flipt is an open-source, self-hosted feature flag application that allows you to run experiments across services in your environment.

Flipt can be deployed within your existing infrastructure so that you don't have to worry about your information being sent to a third party or the latency required to communicate across the internet.

With our GitOps friendly functionality, you can easily integrate Flipt into your Platform Engineering, DevOps, and CI/CD workflows to enable continuous configuration and deployment.

 

Managed Services

Don't want to manage your own Flipt instance? We've got you covered! Check out our in-progress managed offerings.

• Bring Your Own Cloud - Run Flipt in your own cloud account, managed by us
• Flipt Hybrid Cloud - Combine the benefits of self-hosted and fully-managed Flipt

Interested? Let us know by filling out this form and help us build the future of Flipt!

Usecases

Flipt supports use cases such as:

• Enabling trunk-based development workflows
• Testing new features internally during development before releasing them fully in production
• Ensuring overall system safety by guarding new releases with an emergency kill switch
• Gating certain features for different permission levels allowing you to control who sees what
• Enabling continuous configuration by changing values during runtime without additional deployments

Features

• Fast. Written in Go. Optimized for performance
• Stand alone, single binary that's easy to run and configure
• Ability to create advanced distribution rules to target segments of users
• Native GRPC client SDKs to integrate with your existing GRPC architecture
• Powerful REST API with native SDKs for easy integration
• Modern, mobile-friendly 📱 UI and debug console with dark mode 🌙
• Supports multiple databases: Postgres, MySQL, SQLite, libSQL, and CockroachDB
• Import and export to allow storing your data as code
• Cloud-ready. Runs anywhere: bare metal, PaaS, K8s, with Docker or without
• Works with Prometheus and OpenTelemetry out of the box 🔋
• Filesystem, Object, Git, and OCI declarative storage backends to support GitOps workflows and more.
• Audit logging with webhooks support to track changes to your data

Are we missing a feature that you'd like to see? Let us know!

Contributing

We would love your help! Before submitting a PR, please read over the Contributing guide.

No contribution is too small, whether it be bug reports/fixes, feature requests, documentation updates, or anything else that can help drive the project forward.

Check out our public roadmap to see what we're working on and where you can help.

Not sure how to get started? You can:

• Book a free, non-pressure pairing session/code walkthrough with one of our teammates!
• Join our Discord, and ask any questions there
• Dive into any of the open issues, here are some examples:
  • Good First Issues
  • Backend
  • Frontend

Review the Architecture and Development documentation for more information on how Flipt works.

Community

For help and discussion around Flipt, feature flag best practices, and more, join us on Discord.

Values

• 🔒 Security - HTTPS support. OIDC and Static Token authentication. Auditing. No data leaves your servers and you don't have to open your systems to the outside world to communicate with Flipt. It all runs within your existing infrastructure.
• 🚀 Speed - Since Flipt is co-located with your existing services, you do not have to communicate across the internet which can add excessive latency and slow down your applications.
• ✅ Simplicity - Flipt is a single binary with no external dependencies by default.
• 👍 Compatibility - REST, GRPC, MySQL, Postgres, CockroachDB, SQLite, LibSQL, Redis... Flipt supports it all.
• 👀 Observability - Flipt integrates with Prometheus and OpenTelemetry to provide metrics and tracing. We support sending trace data to Jaeger, Zipkin, and OpenTelemetry Protocol (OTLP) backends.

Try It

Try the latest version of Flipt for yourself.

Deploy

 

Sandbox

Try Flipt in a deployed environment!

Note: The database gets cleared every 30 minutes in this sandbox environment!

Homebrew 🍺

brew install flipt-io/brew/flipt
brew services start flipt

# or run in the foreground
flipt

Flipt UI will now be reachable at http://127.0.0.1:8080/.

Docker 🐳

docker run --rm -p 8080:8080 -p 9000:9000 -t docker.flipt.io/flipt/flipt:latest

Flipt UI will now be reachable at http://127.0.0.1:8080/.

For more permanent methods of running Flipt, see the Installation section.

Nightly Build

Like to live on the edge? Can't wait for the next release? Our nightly builds include the latest changes on main and are built.. well.. nightly.

docker run --rm -p 8080:8080 -p 9000:9000 -t docker.flipt.io/flipt/flipt:nightly

Supports

Integration

Check out the integration documentation for more info on how to integrate Flipt into your existing applications.

REST API

Flipt is equipped with a fully functional REST API. In fact, the Flipt UI is completely backed by this same API. This means that anything that can be done in the Flipt UI can also be done via the REST API.

The Flipt REST API can also be used with any language that can make HTTP requests.

REST Client Libraries

Language	Version	Status
Go
Node/TypeScript
Java
Python
Rust
PHP

GRPC Client Libraries

Language	Version	Status
Go
Ruby
.NET

Generate Your Own

If a client in your language is not available for download, you can easily generate one yourself using the existing protobuf definition.

Our integration documentation has more information on how to generate your own Flipt clients in your language of choice.

Release Cadence

Flipt follows semantic versioning for versioning.

We aim to release a new minor version of Flipt every 2-3 weeks. This allows us to quickly iterate on new features. Bug fixes and security patches (patch versions) will be released as needed.

Development

Development documentation is available for those interested in contributing to Flipt.

We welcome contributions of any kind, including but not limited to bug fixes, feature requests, documentation improvements, and more. Just open an issue or pull request and we'll be happy to help out!

Examples

Check out the examples to see how Flipt works in different use cases.

Licensing

There are currently two types of licenses in place for Flipt:

1. Client License
2. Server License

Client License

All of the code required to generate GRPC clients in other languages as well as the Go SDK are licensed under the MIT License.

This code exists in the rpc/ directory.

The client code is the code that you would integrate into your applications, which is why a more permissive license is used.

Server License

The server code is licensed under the GPL 3.0 License.

See LICENSE.

Contributors ✨

Thanks goes to these wonderful people (emoji key):

Aaron Raff 💻	Rodrigo Chacon 💻	Christopher Diehl 💻	Andrew Z Allen 📖	Sebastien Armand 💻	Dat Tran 💻	Jon Perl ⚠️ 💻
Or Elimelech 💻	giddel 💻	Eduardo 📖 💻	Itai Schwartz 💻	Ikko Ashimine 📖	Márk Sági-Kazár 💻	Dan Piet 💻
Amay Shah 💻	kevin-ip 💻	albertchae 💻	Thomas Sickert 📖	Jameel Al-Aziz 📦	George 💻	Chase Pierce 💻
ITO Shogo ⚠️	Yoofi Quansah 💻	Darin McLain 💻	Adam Weiss 💡	Yuval Goihberg 🎨	David Stotijn 💻	Matthew Notarangelo 💻
Charles OConor 📖	Andrew Hobson 💻	Rudinei Goi Roecker 💻	guangwu 💻	Collin Driscoll 💻	James 💻	legoheld 💻
Akshay Nair 💻	Roman Dmytrenko 💻	Mattia Forcellese 💻	Mohammed El Amine Rhazzar 💻

This project follows the all-contributors specification. Contributions of any kind welcome!