Open Source Alternatives to LaunchDarkly

Replane is an open-source configuration management platform designed to streamline how teams manage application settings, feature flags, and operational parameters. With Replane, you can update configurations, toggle features, and adjust rate limits in real time—without the need to redeploy your code or wait for CI/CD pipelines. It empowers both technical and non-technical team members to safely manage production settings, all while maintaining a complete audit trail and instant rollback capabilities.

Key product features include:

• Dynamic Configuration: Instantly update application settings, feature flags, and operational parameters without code deployments or restarts.
• Version History & Rollback: Every change creates an immutable snapshot, allowing you to roll back to any previous version instantly, complete with a full audit trail.
• Realtime Updates: Changes propagate to all connected clients within milliseconds via Server-Sent Events (SSE), ensuring your apps are always in sync.
• JSON Schema Validation: Attach schemas to configs to prevent invalid or out-of-range values from reaching production, reducing the risk of errors.
• Role-Based Access Control: Granular permissions for owners, editors, and viewers, plus SDK keys for programmatic access, ensure secure and controlled configuration management.
• Cloud or Self-Hosted: Choose between a managed cloud service or self-hosting on your own infrastructure with Docker—no vendor lock-in, same features and API.
• Developer-Friendly SDKs: Official SDKs for JavaScript, TypeScript, Python, and .NET, supporting real-time updates and zero external dependencies.
• Low Latency, Global Edge Delivery: Replane Cloud serves configs from edge locations across five regions for minimal latency.
• Comprehensive Use Cases: Supports feature flags, A/B testing, kill switches, incident response, operational tuning, multi-tenant settings, and more.

Replane addresses common pain points in configuration management, such as the need for deployments for every config change, lack of version history, scattered configuration sources, and missing audit trails. By centralizing and simplifying configuration, it enables teams to ship faster, respond to incidents instantly, and empower non-engineers to safely manage settings. Whether you need to gradually roll out features, instantly disable problematic code, or adjust operational parameters on the fly, Replane provides a robust, production-ready solution that integrates seamlessly with your stack and scales with your needs.