Best Configuration Management Products in 2025

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

Key ConfigCat features:

Integrations

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

As the only API powered by the Prince HTML-to-PDF engine, DocRaptor provides the best support for complex PDFs with powerful support for headers, page breaks, page numbers, flexbox, watermarks, accessible PDFs, and much more.

Key DocRaptor features:

Ease of Use Customizable High-Quality Rendering Compliance

Try for free paid Free Trial $15.0 / Monthly (125+ Documents)

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

A non-repetitive alternative to YAML.

Key Dhall Configuration Language features:

Deterministic Type-Safe Total Programming Language Interoperability

Open Source

YAML 1.2 --- YAML: YAML Ain't Markup Language.

Key YAML features:

Human readability Hierarchical data representation Data interchange format Simplicity

Open Source

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

freemium

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

A/B testing you'll actually use.

Key Optimizely features:

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

Protocol buffers are a language-neutral, platform-neutral extensible mechanism for serializing structured data.

Key Protobuf features:

Efficient Serialization Language Support Versioning Support Type Safety

Open Source

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")

A powerful DSL for elegant description of JSON data.

Key Jsonnet features:

Configurability Extensibility JSON Compatibility Reduce Repetition

Open Source

Protect API keys and credentials. Keep configuration in sync everywhere.

Key EnvKey features:

Centralized Management Security Real-Time Updates Audit and Logging

Open Source

The Open Source A/B Testing Platform.

Key Growth Book features:

Flexibility Feature Flags Open Source Integrations

Open Source