npm81Excellenthealth index
JavaScript★ 4↓ 12.1M/moAug 27, 2026
Packagist · npm80Excellenthealth index

Flagsmith/flagsmith-php-clientPHP Client for Flagsmith. Ship features with confidence using feature flags and remote config. Host yourself or use our hosted version at https://www.flagsmith.com/
PHP★ 18↓ 65.7K/moSep 13, 2026
Go80Excellenthealth index
Go★ 0Sep 21, 2026
npm80Excellenthealth index
JavaScript · Shell★ 9↓ 295.1K/moSep 14, 2026
crates.io80Excellenthealth index
Rust★ 18↓ 141.4K/moSep 12, 2026
RubyGems80Excellenthealth index
Ruby★ 27Sep 9, 2026
Python★ 18Sep 19, 2026
Erlang★ 39Sep 9, 2026
RubyGems78Goodhealth index
Ruby★ 62Sep 11, 2026
crates.io78Goodhealth index
Rust★ 0↓ 384K/moSep 17, 2026

MAIF/izanamiIzanami is a centralized versatile feature flag solution, well suited for micro service architectures.
Scala · TypeScript★ 206Oct 19, 2026
TypeScript★ 5↓ 41.5K/moOct 16, 2026
Go★ 12Sep 17, 2026
RubyGems77Goodhealth index
Ruby★ 3Aug 25, 2026
crates.io77Goodhealth index
Rust★ 113↓ 468.2K/moSep 17, 2026
Go★ 0Oct 19, 2026
Go★ 1Oct 20, 2026
TypeScript★ 37Sep 15, 2026
Packagist73Goodhealth index
PHP★ 1↓ 101.5K/moOct 21, 2026
C#★ 7Sep 17, 2026
Packagist71Goodhealth index
PHP★ 17↓ 8,008/moSep 13, 2026
C#★ 7Aug 25, 2026
TypeScript · JavaScript★ 4↓ 281/moSep 13, 2026
crates.io69Goodhealth index

configcat/rust-sdkConfigCat SDK for Rust. ConfigCat is a hosted feature flag service: https://configcat.com. Manage feature toggles across frontend, backend, mobile, desktop apps. Alternative to LaunchDarkly. Management app + feature flag SDKs.
Rust★ 10↓ 8,818/moSep 15, 2026
npm · Maven69Goodhealth index

sairam0424/TombstoneProduction intelligence layer for feature flags at scale — blast radius gating, circuit-breaker auto-rollback, Merkle-linked audit log, incident correlation, and Knight Capital–style tombstoning. Go + Python + TypeScript polyglot monorepo.
Go · TypeScript · Python★ 0↓ 27/moSep 14, 2026

vllnt/convex-flagsFeature flags as a Convex component — variants, targeting, percentage rollouts, and per-subject overrides, evaluated on the backend and streamed live to clients.
TypeScript★ 3↓ 4,206/moOct 8, 2026
Packagist69Goodhealth index
PHP★ 0↓ 4,191/moSep 23, 2026
TypeScript★ 5↓ 12.8K/moSep 16, 2026
Packagist67Goodhealth index
PHP★ 0↓ 4,136/moSep 23, 2026

configcat/elixir-sdkConfigCat SDK for Elixir. ConfigCat is a hosted feature flag service: https://configcat.com. Manage feature toggles across frontend, backend, mobile, desktop apps. Alternative to LaunchDarkly. Management app + feature flag SDKs.
Elixir★ 21↓ 6,951/moSep 9, 2026