Head-to-Head: Effector vs Little State Machine Analysis


v22.8.7(5 days ago)

This package is actively maintained.Types definitions are bundled with the npm packageNumber of direct dependencies: 0Monthly npm downloads

Effector is a JavaScript library for building predictable and fast state machines and reactive applications. It provides a composable approach to handling state, where each state change is represented by an event, and each event corresponds to a specific set of state changes. Effector has a clear separation between logic and effects, making it easy to test and debug. It also has a built-in mechanism for handling subscriptions and side-effects.

Alternatives: redux, mobx, xstate

Tags: javascriptstate-managementreactive-programmingframework-agnostic


v4.8.0(about 1 year ago)

This package was last published over a year ago. It may not be actively maintained.Types definitions are bundled with the npm packageNumber of direct dependencies: 0Monthly npm downloads

little-state-machine is a lightweight state management library for JavaScript applications. It provides a simple and intuitive API for managing and sharing state across different components or modules in your application. With little-state-machine, you can easily create and update global state variables, subscribe to changes, and trigger actions based on state updates.

Alternatives: redux, mobx, vuex

Tags: javascriptstate-managementglobal-statelightweight



Both Effector and Little State Machine have gained popularity within the JavaScript community, but Effector has a more established presence. Effector is known for its usage in large-scale applications, while Little State Machine is often used for smaller projects.


Effector is a state management library that provides a powerful set of tools for managing the state of your application. It offers features like reactive primitives, middleware support, and easy integration with frameworks like React. Little State Machine, on the other hand, is a minimalistic state management library specifically designed for React applications. It focuses on providing a simple API for managing global state within a React component tree.

Developer Experience

Effector offers a comprehensive and well-documented API, making it relatively easy to work with. It provides advanced features like time travel debugging and thorough type safety with TypeScript. Little State Machine also has good documentation and is straightforward to use, particularly for developers familiar with React and React Hooks.


Effector is more flexible and can be used with different frameworks or even without a framework at all. It provides official integrations with React, React Native, and Vue.js. Little State Machine is primarily designed for React applications and is best suited for projects using React as the primary UI framework.


Effector focuses on performance optimization and provides efficient event handling and state updates. It utilizes reactive primitives and a declarative approach to achieve excellent performance. Little State Machine also performs well, but it may not be as optimized for extremely high-performance requirements as Effector.

Community Support

Effector has an active and growing community. It is backed by a large organization (Zero bias) and has good community support. Little State Machine, while smaller in scale, also has an active community and maintains a moderate level of support.