Best Feature Flags in 2025

Flagsmith lets you manage feature flags and remote config across web, mobile and server side applications. Deliver true Continuous Integration. Get builds out faster. Control who has access to new features. We're Open Source.

Key Flagsmith features:

Feature Flags Remote Config A/B/X Testing & Optimization Organization Management

Try for free Open Source freemium

Unimus is a Network Automation and Configuration management (NCM) solution designed for fast deployment network-wide and ease of use. Unimus does not require learning any abstraction or templating languages, and does not require any coding skills.

Key Unimus features:

Network Automation Configuration Backup Change management Configuration Auditing

Try for free freemium

LaunchDarkly is a powerful development tool which allows software developers to roll out updates and new features.

Key LaunchDarkly features:

Comprehensive Feature Flag Management Real-time Feature Control Scalability Team Collaboration

ConfigCat is a developer-centric feature flag service with unlimited team size, awesome support, and a reasonable price tag.

Key ConfigCat features:

Integrations

freemium

Unleash is an open-source feature management platform. We are private, secure, and ready for the most complex setups out of the box.

Key Unleash features:

Flexibility Open Source Multiple Environment Support Strong Community

Open Source freemium $75.0 / Monthly ("Enterprise Pay-as-you-go", "5 users")

In a world where product development teams are pressured to do more with less, Split’s Feature Data Platform™ gives you the confidence to move fast without breaking things.

Key Split.io features:

Feature Flagging Data-Driven Decisions Integration Capabilities Scalability

Open Source

Feature Flag as a Service - Separate code deployments from feature releases to speed up development cycles, mitigate risks and release safely.

Key Flagship.io features:

API SDKs Targeting Segments Dashboards

freemium

A/B testing you'll actually use.

Key Optimizely features:

Comprehensive A/B Testing User-Friendly Interface Personalization Comprehensive Analytics

Type-safe feature flags, A/B testing, analytics and app configuration, with Git-style version control and local, synchronous, in-memory flag evaluation.

freemium

The Open Source A/B Testing Platform.

Key Growth Book features:

Flexibility Feature Flags Open Source Integrations

Open Source

DevCycle helps modern product engineering teams release code faster and safer.

Key DevCycle features:

Feature Management Real-time Analytics User Targeting Integration Capabilities

A modern and intuitive product experimentation platform.

Key Statsig features:

Feature Management Experimentation Real-time Analytics Ease of Integration

Fix or prevent critical bugs while your app is live.

Key Rollout features:

Feature Flagging Remote Configuration Experimentation Segmentation

Open Source

Enhance your product or website with QP widget. Gather feedback, report bugs, request features, and rate user experiences effortlessly. Sign up today to streamline your process and improve your project with real-time insights.

Key Qatchup features:

Feedback Bug report Feature Request Rate Experience

freemium $10.0 / Monthly