Find Open-Source Alternatives
Discover powerful open-source replacements for popular commercial software. Save on costs, gain transparency, and join a community of developers.
Discover powerful open-source replacements for popular commercial software. Save on costs, gain transparency, and join a community of developers.
Compare community-driven replacements for LaunchDarkly in feature flags workflows. We curate active, self-hostable options with transparent licensing so you can evaluate the right fit quickly.
These projects match the most common migration paths for teams replacing LaunchDarkly.
Why teams pick it
Self-host anywhere with Docker, Kubernetes, or Helm for full data control
Run on infrastructure you control
Recent commits in the last 6 months
MIT, Apache, and similar licenses
Counts reflect projects currently indexed as alternatives to LaunchDarkly.
Why teams pick it
Organizations needing GDPR‑compliant, privacy‑first flagging
Feature flag platform enabling safe, incremental releases
Why teams choose it
Watch for
Open‑source version requires own infrastructure to run
Migration highlight
Canary release of a new UI
Expose the UI to a small user segment, monitor performance, and roll back instantly if issues arise.
Beautiful, performant feature flags for Ruby and Rails
Dynamic runtime feature toggles for Java applications
Self-hosted feature flag platform for safe deployments
Open-Source Feature Flagging and Remote Config Platform
Git-native feature management platform for modern development teams
Deliver targeted experiences with feature flags and A/B testing
Lightweight, multi-language feature flag service with relay proxy
Feature flag management and A/B testing platform
Rack‑based A/B testing framework for Rails, Sinatra, and more
Cloud Native feature flags, A/B testing, and remote configuration platform
Open source feature management for confident, low-risk deployments
Redis-backed feature flags for Ruby with granular rollout control
Git-based feature flags and experimentation for developers
Progressive delivery automation for Kubernetes with canary deployments
Open Source Feature Flagging and A/B Testing Platform
Teams replacing LaunchDarkly in feature flags workflows typically weigh self-hosting needs, integration coverage, and licensing obligations.
Tip: shortlist one hosted and one self-hosted option so stakeholders can compare trade-offs before migrating away from LaunchDarkly.
Why teams choose it
Watch for
Advanced features like audit history and permissions require paid Cloud subscription
Migration highlight
Gradual Feature Rollout
Enable a new search feature for 2% of users, monitor performance, then gradually increase to 100% without redeploying.
Why teams choose it
Watch for
Limited to JVM languages; not applicable to non‑Java stacks
Migration highlight
Gradual rollout to 10% of users
Enable a new UI component for a subset of users, monitor performance, then increase exposure without redeploying.
Why teams choose it
Watch for
Self-hosting requires infrastructure management and maintenance
Migration highlight
Progressive Feature Rollout
Release new algorithms to 1% of users, monitor performance, then expand gradually to mitigate risk and enable instant rollback without redeployment
Why teams choose it
Watch for
Enterprise governance features require a commercial license
Migration highlight
Progressive Feature Rollout
Release new features to 10% of users, monitor performance, and gradually expand to 100% without redeployment
Why teams choose it
Watch for
Git-native approach requires teams comfortable with Git-based workflows
Migration highlight
Trunk-Based Development with Feature Flags
Merge incomplete features to main branch behind flags, enabling continuous integration without blocking releases or requiring long-lived feature branches
Why teams choose it
Watch for
Requires self-hosting and operational overhead
Migration highlight
Gradual rollout of new UI component
Enable the component for a subset of users, measure conversion, and roll back instantly if needed.
Why teams choose it
Watch for
Cross-language usage requires running a separate relay proxy
Migration highlight
Gradual rollout of a new API endpoint
20% of users receive the new endpoint, allowing safe validation before full release
Why teams choose it
Watch for
Documentation is still a work in progress
Migration highlight
Progressive Feature Rollout
Deploy new features to production behind flags, then gradually release to user segments while monitoring performance and rolling back instantly if issues arise.
Why teams choose it
Watch for
Requires a Redis server
Migration highlight
Landing page button color test
Identify which button image drives higher click‑through rates
Why teams choose it
Watch for
SaaS offering requires 30-day trial evaluation before commitment
Migration highlight
Progressive Feature Rollout
Release new features to 10% of users, monitor analytics, then gradually increase exposure while maintaining rollback capability through the admin console.
Why teams choose it
Watch for
Documentation primarily targets teams already familiar with feature management concepts
Migration highlight
Trunk-based development without branch chaos
Development teams merge to main continuously, using feature toggles to gate incomplete work and eliminate costly branch-merge cycles.
Why teams choose it
Watch for
Requires Redis infrastructure and operational knowledge
Migration highlight
Phased Feature Launch
Roll out new chat functionality to 5% of users, monitor error rates, then gradually increase to 20%, 50%, and 100% based on performance metrics.
Why teams choose it
Watch for
Requires CI/CD pipeline setup and CDN configuration
Migration highlight
Gradual Feature Rollout
Deploy a new checkout flow to 10% of users, monitor metrics, then ramp to 100% over two weeks—all via pull requests and automated datafile builds.
Why teams choose it
Watch for
Requires Kubernetes and familiarity with service mesh or ingress controller concepts
Migration highlight
Canary Deployment with Automated Rollback
Gradually shift 5% traffic increments to a new version, automatically rolling back if request success rate drops below 99% or latency exceeds thresholds
Why teams choose it
Watch for
Self-hosting requires Docker and MongoDB infrastructure management
Migration highlight
Gradual Feature Rollout
Release new features to 5% of users, monitor metrics in real-time, and scale to 100% with confidence using built-in targeting rules.