Hypertune

Type-safe, Git-based platform for feature flags, experimentation, analytics, and app configuration. Delivers full end-to-end type safety with auto-generated clients, local flag evaluation with zero network latency, and a single TypeScript SDK that works across browser, server, mobile, serverless, and edge environments.

Trusted by teams at Retool and Beyond Menu for production feature flags and A/B testing. Hypertune stands out for its fit with modern TypeScript stacks: optimized for Next.js and Vercel with SSR-friendly setup, build-time snapshots for reliable initialization, and Vercel Edge Config integration. Compared to generic flag tools, it avoids runtime errors through static typing, code generation, and Hyperlang, a functional configuration language for targeting rules.

Key capabilities:

• Auto-generated type-safe client with lifecycle annotations and IDE integration
• Git-based version control with commits, diffs, branches, pull requests, and team roles
• Hyperlang targeting with variables, debugger, and real-time analytics per rule branch
• Local evaluation, build-time snapshots, and no frontend flicker on first render
• Experimentation with embedded A/B tests, type-safe analytics events, and AI loops for funnel optimization
• Extensible beyond flags: AI config, in-app content, pricing, entitlements, business rules

Engineering teams use Hypertune for gradual rollouts, experimentation, and marketing personalization without adding latency. Product and ops teams configure prompts, pricing, and content without code changes. Monorepos share a single SDK setup across frontend and backend services.