flagd ☆
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Description:
Feature flag daemon with a Unix philosophy
Type: Formula  |  Latest Version: 0.13.0@0  |  Tracked Since: Dec 24, 2025
Links: Homepage  |  GitHub  |  Docs  |  formulae.brew.sh
Stars: 837  |  Forks: 97  |  Language: Go  |  Category: Developer tools
Tags: feature-flags openfeature devops developer-tools golang
Install: brew install flagd
About:
flagd is a feature flag daemon that provides a unified API for evaluating feature flags across various providers. It implements the OpenFeature specification, enabling consistent and vendor-agnostic feature management for cloud-native applications. The tool is designed to be lightweight and follows Unix philosophy principles.
Key Features:
  • OpenFeature-compliant implementation
  • Pluggable provider architecture (files, Kubernetes, etc.)
  • Multiple protocol support (gRPC, HTTP, JSON-RPC)
  • Declarative configuration via YAML/JSON
Use Cases:
  • Decoupling feature flag evaluation from application code
  • Centralizing feature flag management for microservices
  • Enabling progressive delivery and canary releases
Alternatives:
  • unleash – Unleash is a full-featured platform with a UI, while flagd focuses on being a lightweight, API-first daemon
  • launchdarkly – LaunchDarkly is a commercial SaaS platform, while flagd is an open-source alternative
Version History
Detected Version Rev Change Commit
Dec 25, 2025 5:34pm 0.13.0 0 VERSION_BUMP e7bdef46
Dec 24, 2025 5:03am 0.12.9 0 VERSION_BUMP c37ff288
Oct 10, 2025 1:08pm 0 VERSION_BUMP b630de46
Sep 13, 2025 6:38pm 0 VERSION_BUMP e7b9d504
Jan 16, 2025 11:13am 0 VERSION_BUMP 8a133649
Dec 18, 2024 11:06am 0 VERSION_BUMP 5255df58
Oct 28, 2024 3:45pm 0 VERSION_BUMP 576ae946
Sep 13, 2024 5:38am 0 VERSION_BUMP b47eedc5
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