Hypertune

About Hypertune

Hypertune is a feature flag and app configuration platform built around a type-safe TypeScript SDK, optimized for React and Next.js applications. It provides a single SDK for browser, server, and mobile JavaScript environments, with support for serverless and edge deployments, including a Vercel Edge Config integration. Targeting rules are built with Hyperlang, a functional, statically-typed configuration language that supports variables, enums, and object structures for organizing related flags, along with a debugger and real-time analytics on flag evaluation.

The platform includes experimentation and analytics capabilities, letting teams embed experiments in flag logic, log events with typed custom payloads, and use AI loops to optimize funnels. Flag logic, experiments, analytics events, and configuration are versioned together in a Git-based system with commits, diffs, branches, pull requests, and team roles (viewers, contributors, editors). Local flag evaluation is designed to avoid added network latency and frontend flicker, with build-time snapshots for SDK initialization.

Beyond feature flags, Hypertune is positioned for broader app configuration use cases, including AI model/prompt settings, in-app content, landing page structure, pricing and entitlements, and business rules. It integrates with tools like Segment and GA4, and holds SOC 2 Type II and ISO 27001 certifications. The service is intended for engineering, product, and marketing teams at startups and enterprises; as of the page content, Hypertune has announced it is shutting down, no longer accepting new sign-ups, with the service scheduled to close on 10 August 2026.

Key features

• Type-safe feature flags with auto-generated TypeScript SDK for full end-to-end type safety
• Custom targeting rules via Hyperlang, a functional, statically-typed configuration language
• Git-based version control for flags with commits, diffs, branches, and pull requests
• Local flag evaluation with zero network latency and build-time snapshots
• Built-in experimentation, analytics, and AI loops to optimize funnels
• Single TypeScript SDK that works across browser, server, mobile, and edge environments

Frequently asked questions