ReactJS is one of the most popular tools and a top choice among developers for building modern web applications. In 2025, it is used by startups, enterprises, and open-source projects to create highly responsive frontends. However, there is still ongoing debate about whether React is a library or a framework. It is a fair question to ask, because React apps completely look like they are built with a full-fledged framework like Angular or Vue. And knowing the difference is important to make better decisions for your next React project.
In this blog, we’ll study the key differences between libraries and frameworks and understand why React is often taken as a framework, especially with its latest features in 2025. We’ll also discuss when to hire dedicated ReactJS developers for your next project.
Library vs Framework: What’s the Difference?
Understanding the fundamental difference between a library and a framework is important to make it clear where React stands:
The library offers tools and utilities to use in code. The developer controls the flow and structure by selecting the tools of their choice.
The framework provides the structure and asks developers to follow the rules to apply the wide set of features.
React is technically a library because it allows developers to build the User Interface (UI) of the application with the help of declarative code. But in real-world cases, developers often integrate React with other tools like React Router, Redux, or Next.js and build full-fledged applications. Businesses also hire dedicated ReactJS developers to build scalable and user-friendly websites and apps.
Why React Is Often Compared to Frameworks
The way developers use React makes it doubtful that it is a framework. By means of the following reasons:
1- Rich Ecosystem
React has no built-in tools for navigation, state management, or API calls. But it has a very vast ecosystem that makes it possible with all the following helpful tools:
- React Router is for navigation
- Redux, Recoil, or Zustand are for state management
- Axios or Fetch is used to make API calls
- React Hook Form is for handling forms
React developers can easily integrate these tools with React to build an application that feels like a framework.
2- Meta-Frameworks Like Next.js
Meta frameworks like Next.js, Remix, and Gatsby are made to work with React. Developers can easily integrate and use them to add extra features. React applications can add the following features with the help of these tools:
- File-based routing
- Server-Side Rendering (SSR)
- Built-in API handling
- Efficient performance
With these tools, React becomes more powerful. In case you are building a web app with SSR, you have the option to use React with Python for a complete web solution.
3- Project Structure
React doesn’t force you to follow any specific structure, but eventually developers have standard architectural styles. This helps them to identify project types easily. The folder structures that are now often used are as follows:
- components/ – for UI pieces
- pages/ – for different screens
- hooks/ – for custom logic
- utils/ – for helper functions
Moreover, developers also made ready-to-use parts like buttons and cards to bring consistency and cleanliness to the project.
4- Enterprise-Scale Usage
Large firms like Facebook (Meta), Netflix, and Shopify use React to build their complex and large platforms. So, to build complex apps, they don’t just rely on React, but they integrate it with:
- Performance tools to enhance the performance of apps
- TypeScript to improve code quality and catch bugs
- Developer coding guidelines so that scaling teams can work easily
After adding these tools, guidelines, and features, React acts like a framework, not just a front-end library. These companies also often hire dedicated PHP developers to fully leverage the features of React.
What Sets React Apart from Frameworks?
If React feels like a framework, we can see some factors that differ from other platforms. Let’s make a comparison table for React (library) and Angular (framework) to understand the differences better:
| Feature | React | Angular |
| Type | Library (frontend) | Full framework |
| Routing | Via other libraries | Built-in |
| State Management | External (Redux, Zustand, Recoil) | Built-in (RxJS) |
| Pre-defined Structure | No | Yes |
| Rendering Model | Flexible (CSR/SSR/Streaming) | SSR + CSR |
| Language | JavaScript, JSX | TypeScript by default |
| Testing Tools | External (Jest or Cypress) | Built-in (Karma or Jasmine) |
React offers flexibility, and it demands that developers put in extra effort if they want to add additional features. However, Angular is already a full-fledged framework.
React’s Strengths in 2025
React is not outdated yet; its new features and updates have enhanced its development. Here are the new features that were introduced in React 16.8 and above:
Hooks and Functions
React now depends excessively on hooks and functional components. Basically, hooks are special functions in React that allow developers to use features like state and side effects in functional components. The common hooks are useState, useEffect, and useContext. Functional components are a way to write components in React with JavaScript functions. In simple words, hooks and functional components let the developer:
- Write less code
- Share logic effortlessly
- Simplify testing
Moreover, developers can build advanced React apps without using classes.
Concurrent Mode
With the help of concurrent mode React apps, they bring smart rendering by handling different tasks at the same time. This allows React to:
- Pause and resume work and rendering
- Rank urgent updates
- Keeps UI rapid, smooth, and highly interactive even during heavy loads
This is extremely useful for complex user interfaces and dashboards.
Server Components
This allows some parts of React applications to run on the server side rather than on the browser. Which means the page will load rapidly and improve SEO and overall performance.
Streaming & Hydration
The new features of HTML streaming and selective hydration make content visible in no time and provide a better user experience by loading only user-interactive parts first. This feature is important for content-heavy sites and e-commerce stores.
Many companies choose to hire dedicated ReactJS developers to benefit from these recent features.
When to Choose React?
React is a great option in the cases mentioned below:
- Need flexibility and control for building your app
- Want to build a custom and component-based UI
- Prefer to choose different libraries
- Planning to work with meta-frameworks
- Looking for support of the developer community and ecosystem
React is best for single-page applications (SPAs), e-commerce frontends, dashboards, and admin panels. If you are planning to build any of these, hire dedicated PHP developers from Devace Technologies to get started within 48 hours.
Final Verdict
React is not a framework; it is a JavaScript library used to build frontends. But by means of its rich ecosystem, meta frameworks, and enterprise-scale usage, it feels like a framework. It lacks all the features that other frameworks have; however, React developers can implement those features with the help of other libraries and tools. That is the reason companies often hire dedicated PHP developers to build high-performance applications by using the best tools in the React ecosystem.
