What is the difference between Redux and React Context?

Short answer

React Context is a built-in mechanism for passing data through the tree. Redux is a dedicated state container with predictable updates, middleware, and devtools.

Key differences

• Boilerplate: Context requires less setup; Redux (especially classic Redux) used to require more, though Redux Toolkit reduces this gap.
• Performance: Context re-renders all consumers when the value changes. Redux uses shallow equality checks and selector optimizations to limit re-renders.
• Tooling: Redux offers time-travel debugging, middleware, and structured patterns for large teams.

When to use each

• Use Context for low-frequency updates like themes, locales, or authenticated user objects.
• Use Redux for complex global state with many interactions, frequent updates, or requirements for undo/redo and state hydration.

Tips

• You can use both together: Redux for global app state, Context for localized dependency injection.