React Star Rating Libraries: Architecture, API, and Maintenance Compared

When adding user feedback mechanisms to a React application, developers often reach for star rating components. Three popular npm packages address this need: react-rating-stars-component, react-star-rating-component, and react-stars. While they all render stars, their underlying architectures, customization models, and maintenance statuses vary wildly. Let's break down how they handle rendering, state, and customization to help you make the right architectural choice.

🛑 Maintenance Status: Active vs. Legacy

Before looking at code, we must address the lifecycle of these libraries. This is often the most critical factor in architectural decisions.

react-stars is a legacy library. It has not seen significant updates in years and does not align with modern React best practices (such as strict mode compliance or modern hook patterns). Using it in new projects introduces unnecessary technical debt.

// react-stars: Legacy pattern
// No longer recommended for new development
import ReactStars from "react-stars";

const App = () => (
  <ReactStars count={5} size={24} activeColor="#ffd700" />
);

react-rating-stars-component and react-star-rating-component are actively maintained alternatives. They support modern React versions and offer better performance optimizations. If you are starting a new project, you should strictly choose between these two.

// Modern alternatives
import ReactRatingStars from "react-rating-stars-component";
import StarRating from "react-star-rating-component";

// Both are safe for modern React 18+ environments

🎨 Customization: Configuration vs. Composition

The biggest technical difference lies in how you customize the look of the stars. Do you pass props to configure a pre-built icon, or do you compose the icon yourself?

react-rating-stars-component uses a configuration-based approach. You pass props like char, color, or size to modify the appearance. It handles the rendering logic internally. This is faster to implement for standard use cases but limits you to text characters or simple SVG strings.

// react-rating-stars-component: Config-driven
import ReactRatingStars from "react-rating-stars-component";

const Rating = () => (
  <ReactRatingStars
    count={5}
    size={40}
    char="⭐" // Can be an emoji or simple char
    activeColor="#ffd700"
    emptyColor="#e4e5e9"
  />
);

react-star-rating-component uses a composition-based approach. It treats the star as a child component. You can pass any valid React node (SVG, Image, custom Component) as a child, and the library repeats it based on the count. This offers infinite flexibility for design systems.

// react-star-rating-component: Composition-driven
import StarRating from "react-star-rating-component";

const CustomStar = ({ filled }) => (
  <svg width="24" height="24" fill={filled ? "gold" : "gray"}>
    <path d="M12 2l3.09 6.26L22 9.27l-5 4.87 1.18 6.88L12 17.77l-6.18 3.25L7 14.14 2 9.27l6.91-1.01L12 2z" />
  </svg>
);

const Rating = () => (
  <StarRating count={5} name="rating">
    <CustomStar filled={true} />
  </StarRating>
);

react-stars also relies on configuration but is rigid. It primarily supports emoji characters or basic SVG paths via props, lacking the ability to inject complex React components as children.

// react-stars: Rigid configuration
import ReactStars from "react-stars";

const Rating = () => (
  <ReactStars
    count={5}
    char="★" // Limited to simple characters
    color1="#ffd700"
    color2="#ffd700"
  />
);

🔄 State Management: Callbacks vs. Controlled Inputs

How these libraries handle user interaction and state updates differs in developer experience.

react-rating-stars-component relies on a callback prop (onChange) to notify the parent of changes. It can function as a controlled or uncontrolled component, but the primary pattern is event-driven. You manage the state in your parent component.

// react-rating-stars-component: Callback pattern
import ReactRatingStars from "react-rating-stars-component";
import { useState } from "react";

const Form = () => {
  const [rating, setRating] = useState(0);

  return (
    <ReactRatingStars
      count={5}
      size={24}
      value={rating}
      onChange={(newRating) => setRating(newRating)}
    />
  );
};

react-star-rating-component is designed to work seamlessly as a controlled input. It exposes a value prop and an onChange handler, fitting naturally into standard React form patterns. It also supports the name attribute, making it easier to integrate with traditional form submissions if needed.

// react-star-rating-component: Controlled input pattern
import StarRating from "react-star-rating-component";
import { useState } from "react";

const Form = () => {
  const [rating, setRating] = useState(0);

  return (
    <StarRating
      count={5}
      name="user-rating"
      value={rating}
      onChange={(newRating) => setRating(newRating)}
    >
      <span>★</span>
    </StarRating>
  );
};

react-stars uses a similar callback pattern but with older naming conventions and less predictable behavior in strict mode environments due to its age.

// react-stars: Legacy callback
import ReactStars from "react-stars";

const Form = () => {
  const ratingChanged = (newRating) => {
    console.log(newRating);
  };

  return (
    <ReactStars
      count={5}
      onChange={ratingChanged}
      size={24}
      color1="#ffd700"
      color2="#ffd700"
    />
  );
};

👁️ Display Mode: Read-Only Ratings

Often, you need to show a rating without allowing user interaction (e.g., displaying an average score).

react-rating-stars-component provides a dedicated edit prop. Setting edit={false} instantly disables interaction and styling cues like hover effects.

// react-rating-stars-component: Display mode
<ReactRatingStars
  count={5}
  value={4.5}
  edit={false} // Disables interaction
  size={20}
/>

react-star-rating-component achieves this by omitting the onChange handler or using the readOnly concept implicitly. If no handler is provided, it often defaults to display mode, though explicit props vary by version. You can also pass editing={false} in some configurations.

// react-star-rating-component: Display mode
<StarRating count={5} value={4.5} editing={false}>
  <span>★</span>
</StarRating>

react-stars uses the edit prop similarly to the first library, but again, the implementation is older and may not handle fractional stars as smoothly in read-only mode without extra CSS tweaks.

// react-stars: Display mode
<ReactStars
  count={5}
  value={4.5}
  edit={false}
  size={24}
  color1="#ffd700"
  color2="#ffd700"
/>

📊 Summary of Technical Trade-offs

💡 Final Recommendation

For new projects, the choice is between react-rating-stars-component and react-star-rating-component.

• Pick react-rating-stars-component if you want a quick, zero-fuss implementation. It is perfect for internal dashboards, MVPs, or standard admin panels where default SVG stars are acceptable and you just need to wire up the state.

• Pick react-star-rating-component if you are building a consumer-facing product with a strict design system. Its ability to accept custom children means your designers can hand you a custom SVG or icon component, and you can drop it straight in without hacking CSS or overriding internal styles.

• Never start a new project with react-stars. It is a solved problem with better, safer, and more flexible modern alternatives available.