Flipt

Flipt is a high-performance, lightweight feature flag solution built with Go that supports multiple data backends. Designed for flexibility and speed, it provides a robust alternative to LaunchDarkly with the benefits of self-hosting and the ability to choose your preferred data storage backend.

Key Features

• Comprehensive Feature Flag Management:

  • Intuitive feature flag creation and management
  • Flag variants for A/B testing and experimentation
  • Advanced targeting rules and conditions
  • Percentage-based rollouts and distributions
  • Multi-environment support and isolation
  • Flag lifecycle management

• Multiple Data Backend Support:

  • SQLite for simple deployments
  • PostgreSQL for enterprise scalability
  • MySQL for existing infrastructure
  • File-based storage for GitOps workflows
  • In-memory storage for testing
  • Pluggable backend architecture

• Advanced Targeting & Rules:

  • User-based targeting with attributes
  • Segment targeting for user groups
  • Custom constraint evaluation
  • Rule-based flag evaluation
  • Distribution rules for variants
  • Real-time rule updates

• Developer-Friendly Integration:

  • RESTful API for all operations
  • gRPC API for high-performance access
  • SDKs for multiple programming languages
  • Command-line interface (CLI) tool
  • Local development and testing support
  • OpenAPI specification

• High Performance Architecture:

  • Built with Go for maximum performance
  • Low-latency flag evaluation
  • Efficient rule processing
  • Built-in caching mechanisms
  • Horizontal scaling support
  • Minimal resource footprint

• Operational Excellence:

  • Clean web UI dashboard
  • Metrics and monitoring integration
  • Health check endpoints
  • Comprehensive audit logging
  • Import/export capabilities
  • Backup and restore features

• Deployment Flexibility:

  • Single binary deployment
  • Docker container support
  • Kubernetes deployment
  • Cloud-native architecture
  • Multiple deployment patterns
  • Easy configuration management

Technical Specifications

• Language: Go
• License: GPL-3.0
• Deployment: Docker, Kubernetes, Binary
• Platforms: Cross-platform
• Backends: SQLite, PostgreSQL, MySQL, File, Memory
• APIs: REST, gRPC

Use Cases

• Microservices: Feature flag management across distributed systems
• Product Development: Feature rollouts and experimentation
• DevOps Teams: Deployment risk mitigation and canary releases
• High-Performance Applications: Applications requiring low-latency flag evaluation
• GitOps Workflows: File-based configuration with version control
• Multi-Environment Deployments: Complex deployment scenarios

Unique Advantages

• Backend Flexibility: Choose from multiple data storage backends
• High Performance: Go-based architecture for maximum speed
• Lightweight: Minimal resource usage and fast startup
• LaunchDarkly Alternative: Feature-complete alternative with self-hosting
• Simple Deployment: Single binary with easy configuration
• Open Source: Transparent, customizable, and community-driven

Based on the Flipt GitHub repository, this tool provides development teams with a fast, flexible, and lightweight feature flag solution that offers the performance benefits of Go with the flexibility of multiple data backends, making it ideal for teams that need high-performance feature flag management with deployment flexibility.