Software Alternatives, Accelerators & Startups

Preact.js

Preact is a fast 3kB alternative to React with the same modern API. Components & Virtual DOM.

Preact.js Reviews and details

Screenshots and images

  • Preact.js Landing page
    Landing page //
    2023-05-11

Features & Specs

  1. 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.

  2. 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.

  3. 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.

  4. Ecosystem

    Preact can work with many tools and libraries that are designed for React, giving developers access to a rich ecosystem of resources.

  5. 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.

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Videos

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Social recommendations and mentions

We have tracked the following product recommendations or mentions on various public social media platforms and blogs. They can help you see what people think about Preact.js and what they use it for.
  • Stop Using React
    There's so many articles, tools, and frameworks that help you develop for these users - but developers scorn them. Within the JavaScript subreddit, web workers are hated, even though they are one of the best tools we have for effectively developing apps on feature phones - scratch that, for all users! - Source: dev.to / 13 days ago
  • Dependency management fatigue, or why I forever ditched React for Go+Htmx+Templ
    > React is a small rendering library Sorry, can't agree. React is a state management library that also attaches efficient rendering on top of the DOM diff it computes as it propagates the state changes. This allows React apps to remain so simple (one function per component) and so composable without turning into an unmanageable dish of callback / future spaghetti. There is a number of other VDOM... - Source: Hacker News / about 1 month ago
  • Preact vs React: Which Framework is Right for Your Next Project?
    Performance and user experience have become the lifeline of modern web development. Two libraries that have gained immense popularity among developers for developing interactive user interfaces are React and Preact. - Source: dev.to / 3 months ago
  • Build Web Apps Absurdly Fast with Vite
    This command creates a new Vite project with React. Feel free to replace “react” with “vue” or “vanilla” if that’s more your jam. Svelte, Preact, Qwik, and others are supported, too! - Source: dev.to / 4 months ago
  • Mitosis - Using Astro.js as the dev server to preview the component with hot-reload
    Note: Astro supports a variety of popular frameworks including React, Preact, Svelte, Vue, SolidJS, AlpineJS and Lit with official integrations. While for other frameworks e.g. Angular and Qwik, you may still benefit from this tutorial and you would need to further set up the community maintained framework integrations. - Source: dev.to / 5 months ago
  • Preact vs React: A Comparative Guide
    In this post, we get to know more about Preact, one of this year's trending libraries. And we'll compare it to React to see which one suits better for our projects. - Source: dev.to / 9 months ago
  • Episode 24/13: Native Signals, Details on Angular/Wiz, Alan Agius on the Angular CLI
    Similarly to Promises/A+, this effort focuses on aligning the JavaScript ecosystem. If this alignment is successful, then a standard could emerge, based on that experience. Several framework authors are collaborating here on a common model which could back their reactivity core. The current draft is based on design input from the authors/maintainers of Angular, Bubble, Ember, FAST, MobX, Preact, Qwik, RxJS, Solid,... - Source: dev.to / 9 months ago
  • How I built a cross-framework frontend library
    At the very bottom of the image, there are 3 blocks that I chose to call application components. If you are building a cross-framework library, these can be built with whatever tools you want! Only catch is, all the tools you use to build it, will be needed by everyone consuming it. So choose wisely, and be mindful of how many kilobytes of third party code you will need in order to ship. In Schedule-X, I chose to... - Source: dev.to / about 1 year ago
  • React Jam just started, making a game in 13 days with React
    >> React is not traditionally used for making games, but that's part of the fun and the challenge. R > MS Flight Simulator cockpits are built with MSFS Avionics Framework which is React-like and MIT licensed: https://github.com/microsoft/msfs-avionics-mirror/tree/main/src/sdk/components Million.js is faster than preact, and lists a number of references under Acknowledgements: ... - Source: Hacker News / about 1 year ago
  • HTML Data Attributes: One of the Original State Management Libraries
    DEV is a Rails monolith, which uses Preact in the front-end using islands architecture. The reason why I mention all this is that it's not a full-stack JavaScript application, and there is no state management library like Redux or Zustand in use. The data store, for the most part on the front end, is all data attributes. - Source: dev.to / about 1 year ago
  • Hacktoberfest 2023 Recap
    Along the way, I not only got the oppurtunity to revise old concepts that had blurred in my memory, but also learnt about new technologies like Fresh.js, a framework from Deno (a js runtime engine) that uses Preact, a React Routing library and used Chakra UI for the first time. - Source: dev.to / about 1 year ago
  • Framework Interoperable Component Libraries Using Lit Web Components.
    I've thought about this a lot while using other frameworks like Deno Fresh which uses Preact under the hood, mainly for JSX templating, but also for islands functionality. Within that framework you can't really use React component libraries. You start to think more about generating static HTML like this example from the Deno blog [A Whole Website in a Single JavaScript File,... - Source: dev.to / over 1 year ago
  • Nue: A React/Vue/Vite/Astro Alternative
    A truly reactive Preact [1] is merely 3 kb of JS. OTOH the need for really simple bits of interactivity does occur in real life. If the htmx [2] approach does not cu it, a micro-library like this could. [1]: https://preactjs.com/ [2]: https://htmx.org/. - Source: Hacker News / over 1 year ago
  • How are folks feeling about the React team's push toward server components?
    Is Preact in that general vein? I've never used it, I only know it's "lightweight React.". Source: over 1 year ago
  • How do I get honest feedback? (developer tool, Python)
    I would suggest putting that’s it’s a streamlit alternative in the front page with benefits over streamlit as front and center. Basically take a look at the preact homepage and how they are doing it. Source: over 1 year ago
  • Is it possible to build a “framework agnostic” library like tanstack table?
    If it's just a component library, you just need to use a tiny library that cat target the web component standard such as Preact or Lit (both libraries weight around 3kb). Web components can be used somewhat easily in any framework. Here's an example. Source: over 1 year ago
  • Supercharging Autocomplete and Typechecking for JSX Components with Generics!
    In this article, we're going to use Preact as our JSX library to render components, and we'll build a table rendering component that will infer and typecheck its props based on whatever data we give it. - Source: dev.to / almost 2 years ago
  • Am I missing something with React?
    On the other hand, if your app does need to update live but you want to keep things a bit closer to the metal than React, I highly recommend Mithril. It is a great everything-you-need-nothing-you-don't framework with a similar design philosophy to React but a much smaller and easier to learn API. I think Preact falls into a similar category though I have not used it personally. Source: almost 2 years ago
  • The best Next.js starter templates
    One of the key features of this starter template is its use of Preact, a lightweight and fast alternative to React that can help improve the performance of your application. Additionally, the template is configured to use TypeScript, a popular typed superset of JavaScript that can help catch errors early and improve the overall quality of your code. - Source: dev.to / almost 2 years ago
  • Tauri vs Iced vs egui: Rust GUI framework performance comparison (including startup time, input lag, resize tests)
    I’ll give you a simple example out of many. You may know about Preact, it uses exactly the same API as React while greatly improving performance AND reducing the core bundle size by about half on average. Source: almost 2 years ago
  • Ejs rekindled my passion
    Bloated? Is it the filesize? Try Preact. https://preactjs.com. Source: almost 2 years ago

External sources with reviews and comparisons of Preact.js

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.
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 production. Many major companies like Tencent,...
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.
The Best JavaScript Frameworks You’re Not Using
One thing you may be wondering…if Preact is faster on page load, what are some of the trade-offs Ben Halpern mentioned in his quote above? There is a great discussion thread started by Dan Abramov of the React team that addresses this. Responding to a question asking for his thoughts on Preact, Dan has this to say:

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