Feature Flag Guides

Ship features safely in React with instant rollouts and zero redeployments

Server-side and client-side feature flags for Next.js applications

Feature flags for Django, Flask, FastAPI, and any Python application

Feature flags for Express, Fastify, NestJS, and any Node.js backend

Feature flags for Go services — simple HTTP API, no CGo, no SDK lock-in

Feature flags for Ruby on Rails — safe rollouts with simple HTTP integration

Feature flags for Laravel — Blade directives, middleware, and safe rollouts

Feature flags for Django — template tags, middleware, and safe rollouts without django-waffle

Feature flags for Vue 3 and Nuxt — composables, directives, and safe rollouts

Runtime feature flags for Rust — toggle features without recompiling

Feature flags for Spring Boot — annotations, AOP, and safe rollouts

Feature flags for Flutter — remote toggles for iOS, Android, and web apps

Feature flags for Angular — services, directives, and route guards

Feature flags for iOS and macOS — remote toggles without App Store updates

Feature flags for Android and Kotlin — coroutines, Compose, and safe rollouts

Feature flags for PHP — simple cURL integration for any PHP application

Feature flags for Phoenix and Elixir — GenServer caching and LiveView integration