frameworkbound

Frameworkbound is an open-source project that provides a binding layer designed to enable UI components to be authored once and reused across multiple frontend frameworks. It offers a framework-agnostic component model and adapters that translate the same component description into React, Vue, Angular, or other targets, reducing duplication when porting interfaces between ecosystems.

At its core, Frameworkbound defines a neutral component description language and a runtime that synchronizes state, events, and lifecycles with the host framework. Developers write components in the neutral model; the appropriate adapter handles rendering, event binding, and lifecycle hooks for the chosen framework.

Key architectural elements include a core runtime, a collection of framework adapters, and a build-time code generator that creates framework-specific bindings from the neutral description. The design emphasizes pluggability, so new adapters for additional frameworks or platforms can be added without changing the core.

Features include declarative state sharing, cross-framework event translation, accessibility-conscious rendering, and a hot-reload development loop. Frameworkbound also provides tooling to validate compatibility across targets and to measure performance across adapters, helping teams manage the trade-offs of cross-framework development.

Usage typically involves authoring components in the neutral model, selecting target frameworks in the project configuration, and building with a bundler that includes the chosen adapters. Projects use Frameworkbound to ship components to web apps, mobile wrappers, or hybrid environments with a single source of truth.

The project began as a collaborative effort within the open-source community in the early 2020s and remains under active development. Reception has been mixed: advocates praise reduced duplication and the potential for unified design systems, while critics point to added abstraction and potential performance overhead.