Abby

Provides type-safe feature flags and flexible remote configuration to manage feature rollouts, environment-based testing, and A/B experiments without redeploying code. Sells to developers and engineering teams at startups and enterprises building applications with React, Next.js and similar frameworks. Delivered as open source software via SaaS with an option to self-host, including typed SDKs, devtools, and a CLI for debugging and deployment.

Key features

• Type-safe feature flags
• Flexible remote config
• A/B testing and split tests
• SDKs for React and Next.js
• Support for SSR and SSG
• Environment-based testing
• SDKs with built-in fallbacks
• Self-hosting option
• DevTools for debugging
• First-party CLI