Software Alternatives, Accelerators & Startups

Deku VS Preact.js

Compare Deku VS Preact.js and see what are their differences

Deku logo Deku

Functional view library for building UI components as an alternative to React

Preact.js logo Preact.js

Preact is a fast 3kB alternative to React with the same modern API. Components & Virtual DOM.
  • Deku Landing page
    Landing page //
    2023-09-19
  • Preact.js Landing page
    Landing page //
    2023-05-11

Deku features and specs

  • Lightweight
    Deku is designed to be a lightweight alternative to other UI libraries, focusing on simplicity and performance by providing just the necessary features to build a component-based architecture.
  • Functional Components
    Deku emphasizes functional components over class-based ones, promoting a functional programming style that can lead to more predictable and testable code.
  • Virtual DOM
    Deku utilizes a Virtual DOM to efficiently manage and update the actual DOM, reducing the overhead of direct DOM manipulation and improving rendering performance.
  • State Management
    It handles state management internally in a minimalistic way, allowing developers to focus on the logic rather than the framework-specific state management patterns.
  • Minimal API
    The API of Deku is minimal and straightforward, which makes it easier to learn and integrate into projects compared to more complex frameworks.

Possible disadvantages of Deku

  • Smaller Community
    The size of Deku's user community is smaller compared to larger frameworks like React, which can result in fewer resources, community support, and third-party libraries.
  • Limited Features
    As a lightweight library, Deku comes with fewer built-in features, plugins, and tools, which might require developers to implement more custom solutions.
  • Less Frequent Updates
    Deku may not receive updates and new features as frequently as larger frameworks, potentially leading to concerns about long-term maintenance and security.
  • Not Mainstream
    Deku isn't as widely adopted in the industry, meaning there might be hesitancy in enterprise adoption due to its lack of mainstream status and potential risk factors.
  • Learning Curve for Reactive Paradigm
    Although Deku simplifies things with functional components, developers unfamiliar with a reactive programming paradigm might face a learning curve in transitioning from traditional UI development.

Preact.js features and specs

  • Size
    Preact is very small in size (about 3KB gzipped), which makes it easy to load and faster to execute, resulting in improved performance and quicker load times.
  • Compatibility
    Preact is largely compatible with React, allowing developers to switch to Preact with minimal code changes. This makes it easier to adopt for projects already using React.
  • Performance
    Due to its small size and efficient design, Preact offers excellent performance, especially on low-powered devices and in applications with heavy user interactions.
  • Ecosystem
    Preact can work with many tools and libraries that are designed for React, giving developers access to a rich ecosystem of resources.
  • Community
    Preact has an active and growing community that provides support, plugins, and third-party tools, making it easier for developers to find solutions and share knowledge.

Possible disadvantages of Preact.js

  • Feature Set
    While Preact covers most of the core React features, it lacks some of the advanced functionality present in React, which may require additional workarounds or third-party libraries.
  • Learning Curve
    For developers coming from a non-React background, learning Preact might involve a learning curve, particularly because of its similarities and subtle differences with React.
  • Tooling Compatibility
    Although many tools designed for React can work with Preact, some might not be directly compatible, requiring additional configuration or patches.
  • Community Size
    While Preact has a supportive community, it is smaller compared to the massive React community, which can result in fewer available resources and third-party packages.
  • Maturity
    Preact, being newer and less widely adopted than React, might not have the same level of battle-tested reliability for all use cases, especially for large scale applications.

Analysis of Preact.js

Overall verdict

  • Preact.js is a strong option for projects where performance and load time are critical, or where a light footprint is necessary. Its compatibility with React makes it a flexible and efficient alternative in scenarios where React may be overkill due to its larger size.

Why this product is good

  • Preact.js is known for its small size and high performance, making it an excellent choice for developers who need a lightweight alternative to React without sacrificing functionality. It offers a familiar API for React developers, ensuring an easy transition, and is highly efficient in terms of rendering performance. Preact also offers excellent compatibility with existing React tools and ecosystems, meaning many React packages work seamlessly with Preact.

Recommended for

    Preact.js is recommended for developers building applications with stringent performance requirements, those needing to optimize for fast loading times in environments with limited bandwidth or resources, or those looking to integrate React-like architecture in smaller projects without introducing the full weight of the React library.

Deku videos

Amazing Yamaguchi Midoriya Deku My Hero Academia Kaiyodo Revoltech Action Figure Review

More videos:

  • Review - Figma Izuku Midoriya / Deku My Hero Academia Unboxing & Review
  • Review - Unboxing: Revoltech Amazing Yamaguchi Izuku Midoriya Deku

Preact.js videos

JS frameworks are replaceable

Category Popularity

0-100% (relative to Deku and Preact.js)
Javascript UI Libraries
22 22%
78% 78
JavaScript Framework
28 28%
72% 72
Development
100 100%
0% 0
JavaScript
19 19%
81% 81

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Deku and Preact.js

Deku Reviews

We have no reviews of Deku yet.
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Preact.js Reviews

Top JavaScript Frameworks in 2025
PreactJS is a JavaScript library that is said to be the fast 3Kb alternative to ReactJS using the same modern API. It implements the fastest virtual DOM compared to other frameworks in the market. Moreover, it is one of the smallest libraries in terms of size.
Source: solguruz.com
20 Next.js Alternatives Worth Considering
Preact is like React’s little sibling, smaller in size but with the same familiar moves. It’s cutting down the fluff and zipping through tasks with less overhead. When performance budgets are tight, Preact wiggles in perfectly.
20 Best JavaScript Frameworks For 2023
Preact is built with the same core principle of React – A component-based approach with Virtual DOM while completely compatible with React. It can even use React packages without compromising on speed, performance, and leaner size. In instances where the full potential of React isn’t necessary, most developers even use React during development and switch to Preact for...
Top 15 jQuery Alternatives To Know
ReactJS is a powerful JavaScript library to create user interfaces. Developers can design easy views at each stage in the application and there is regular update and rendering for the actual components whenever there is any data alteration. It is component-driven and creates encapsulated components that manage their own state.
Top 5 JavaScript Frameworks To Learn in 2021
But according to the graph above, we can notice a decrease in interest in Preact. This might result from having many similar frameworks with the same specs, like react-lite, Inferno, etc. However, knowing a framework like Preact will be useful for your development journey.
Source: enlear.academy

Social recommendations and mentions

Based on our record, Preact.js seems to be more popular. It has been mentiond 93 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Deku mentions (0)

We have not tracked any mentions of Deku yet. Tracking of Deku recommendations started around Mar 2021.

Preact.js mentions (93)

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What are some alternatives?

When comparing Deku and Preact.js, you can also consider the following products

Inferno - An extremely fast React-like javascript library for building modern user interfaces.

Svelte - Cybernetically enhanced web apps

Blocks.js - Deprecated repository. Contribute to Tixit/blocks.js development by creating an account on GitHub.

Vue.js - Reactive Components for Modern Web Interfaces

Glimmer - Fast and light-weight UI components for the web

React - A JavaScript library for building user interfaces