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Unleash avatar

Unleash/unleash

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13,589 stars·863 forks·TypeScript·AGPL-3.0·17 viewswww.getunleash.io↗

Unleash

Unleash is an open-source feature management platform designed to decouple feature releases from code deployments. It provides a centralized system for orchestrating software releases, enabling teams to control application behavior in real-time through segmented user targeting and automated lifecycle management.

The platform distinguishes itself by utilizing a client-side evaluation engine that executes flag logic locally within the application process, ensuring sub-millisecond decision latency without requiring network round-trips. It supports infrastructure-as-code patterns by allowing feature state to be defined and managed through version-controlled configurations, ensuring consistency across development and production environments.

The system covers a broad range of operational capabilities, including gradual feature rollouts, instant kill switches, and A/B testing experimentation. It integrates with external services via an event-driven webhook architecture and enforces security through granular role-based access control and detailed audit logging.

The project is available as a self-hosted solution, with documentation and installation guides provided to support deployment across cloud or edge environments.

Features

  • Feature Flag Management - Provides a centralized platform for managing the lifecycle of application features through toggles.
  • Feature Flagging Platforms - Provides a centralized platform for managing feature rollouts, A/B testing, and real-time configuration changes across distributed application environments.
  • Feature Flagging Services - Offers a self-hosted, open-source solution for decoupling feature releases from code deployments to enable safer software delivery cycles.
  • Evaluation Engines - Executes flag logic locally within the application process to eliminate network round-trips and ensure sub-millisecond latency.

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Feature Flags - Enables instant disabling of problematic features across an application without requiring code redeployment.
  • Automated Rollout Managers - Releases new application capabilities to specific user segments incrementally to minimize risk.
  • Distributed Evaluators - Deploys high-availability services to evaluate feature flags at the edge for low-latency performance.
  • Declarative Configuration Management - Maintains feature state through version-controlled definitions to ensure consistent environment deployments.
  • Feature Orchestration - Enables real-time control of application behavior and feature availability through segmented user targeting and automated lifecycle management.
  • Rule Evaluators - Determines feature availability by processing complex user segments and constraints against dynamic flag definitions.
  • Feature Management - Manages feature flags and remote configuration.
  • Backend and Infrastructure - Feature management and flag system.
  • Configuration and Policy - Manages feature releases to decouple deployment from activation.
  • Feature Flags - Enterprise-ready feature management solution.
  • Feature Management - Feature flag management platform.
  • Configuration as Code - Manages feature flag settings through version-controlled code to ensure consistent environment configurations.
  • Role-Based Access Control - Enforces granular permission boundaries at the API layer to restrict configuration modifications.
  • A/B Testing - Routes specific user groups to different versions of a feature to measure performance and impact.
  • Event Webhooks - Broadcasts state changes to external services via webhooks to automate operational workflows.
  • Distributed State Synchronizers - Synchronizes feature flag configurations across distributed application instances using persistent streaming connections.
  • Self-Hosted Deployment Infrastructure - Supports self-hosted deployment of flag evaluation services across cloud or edge environments.
  • Administrative Change Auditing - Records administrative configuration updates to maintain a verifiable history of management actions.

    • Star history

    Star history chart for unleash/unleashStar history chart for unleash/unleash

    Open-source alternatives to Unleash

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    • tompave/fun_with_flagstompave avatar

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      This project is a feature flag library for Elixir applications, designed to manage and toggle application functionality at runtime. It provides a distributed system for controlling code paths without requiring new deployments, allowing developers to enable or disable features globally, for specific users, or for defined groups. The library distinguishes itself through a pluggable persistence framework that supports various storage backends, ensuring that flag configurations remain consistent across application restarts. It maintains state synchronization across distributed nodes using messagi

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    Frequently asked questions

    What does unleash/unleash do?

    Unleash is an open-source feature management platform designed to decouple feature releases from code deployments. It provides a centralized system for orchestrating software releases, enabling teams to control application behavior in real-time through segmented user targeting and automated lifecycle management.

    What are the main features of unleash/unleash?

    The main features of unleash/unleash are: Feature Flag Management, Feature Flagging Platforms, Feature Flagging Services, Evaluation Engines, Feature Flags, Automated Rollout Managers, Distributed Evaluators, Declarative Configuration Management.

    What are some open-source alternatives to unleash/unleash?

    Open-source alternatives to unleash/unleash include: growthbook/growthbook — GrowthBook is a feature flagging and experimentation platform that utilizes a warehouse-native approach to data… flagsmith/flagsmith — Flagsmith is an open-source platform for managing feature flags and remote configuration across web, mobile, and… posthog/posthog — PostHog is a comprehensive product analytics and feature management platform designed to capture, process, and… tompave/fun_with_flags — This project is a feature flag library for Elixir applications, designed to manage and toggle application… dubinc/dub — This project is a comprehensive link management and marketing attribution platform designed for creating, tracking,… awesome-selfhosted/awesome-selfhosted — This project is a community-curated directory of open-source software designed for deployment in private server…