Software Alternatives, Accelerators & Startups

Preact.js VS Ionic Framework

Compare Preact.js VS Ionic Framework and see what are their differences

Preact.js logo Preact.js

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

Ionic Framework logo Ionic Framework

A front-end SDK to develop applications with HTML5 , CSS3 and JavaScript.
  • Preact.js Landing page
    Landing page //
    2023-05-11
  • Ionic Framework Landing page
    Landing page //
    2023-04-22

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.

Ionic Framework features and specs

  • Cross-Platform Development
    Ionic allows developers to create applications that work smoothly on both iOS and Android from a single codebase, reducing development time and costs.
  • Rich Pre-Built Components
    Ionic comes with a vast library of pre-built UI components that are customizable, enabling quicker development and a consistent user experience across different devices.
  • Integration with Popular Frameworks
    Ionic can be easily integrated with popular front-end frameworks such as Angular, React, and Vue, providing flexibility for developers to use the tools they are familiar with.
  • Active Community and Ecosystem
    Ionic has a strong and active community, along with extensive documentation and a variety of plugins and third-party extensions that can be utilized to extend app functionalities.
  • Performance Optimization
    Ionic has made significant improvements in performance, particularly with the use of tools like Capacitor, which helps achieve near-native performance for hybrid applications.

Possible disadvantages of Ionic Framework

  • Dependency on Web Technologies
    Since Ionic relies heavily on web technologies like HTML, CSS, and JavaScript, performance might not be as optimal as fully native apps, especially in graphics-intensive applications.
  • Learning Curve
    While Ionic is easier to pick up for web developers, those unfamiliar with Angular, React, or Vue might face a steep learning curve initially.
  • Limited Access to Native APIs
    Even though Ionic provides plugins through Capacitor and Cordova for accessing native APIs, there might be scenarios where certain native functionalities are not fully supported or require custom development.
  • Larger App Sizes
    Hybrid applications built with Ionic often have larger file sizes compared to native apps due to the overhead of web runtime and additional libraries.
  • Browser Compatibility Issues
    As Ionic apps run inside a WebView, inconsistencies across different browsers and versions can sometimes lead to unexpected behavior, requiring additional testing and debugging efforts.

Preact.js videos

JS frameworks are replaceable

Ionic Framework videos

Why You SHOULD Use the Ionic Framework

Category Popularity

0-100% (relative to Preact.js and Ionic Framework)
Javascript UI Libraries
58 58%
42% 42
Development Tools
0 0%
100% 100
JavaScript Framework
44 44%
56% 56
JavaScript
100 100%
0% 0

User comments

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Reviews

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

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

Ionic Framework Reviews

THE BEST 34 APP DEVELOPMENT SOFTWARE IN 2022 LIST
One codebase. Any platform. Now in React and Angular. Ionic Framework is an open-source mobile UI toolkit for building high-quality, cross-platform native and web app experiences. Move faster with a single codebase, running everywhere. Free and open-source, Ionic offers a library of mobile-optimized UI components, gestures, and tools for building fast highly interactive apps.
10 React Native Alternatives
Ionic Framework is a free, open-source mobile UI toolkit used for building high-quality cross-platform applications for Android, iOS, and from the web all from a single codebase.

Social recommendations and mentions

Preact.js might be a bit more popular than Ionic Framework. We know about 93 links to it since March 2021 and only 90 links to Ionic Framework. 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.

Preact.js mentions (93)

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Ionic Framework mentions (90)

  • Top 10 Essential Tools for Android Development
    Ionic is an open-source framework for building cross-platform mobile applications using web technologies such as HTML, CSS, and JavaScript. It allows developers to build apps for Android, iOS, and the web from a single codebase. Ionic is known for its flexibility and wide range of UI components, making it easy to build modern, responsive apps. - Source: dev.to / 7 months ago
  • Building a GenAI Fitness App with Gemini
    For the frontend, I chose Ionic and Angular, which enabled me to create a mobile-first app that could be deployed on the web right away while it could also be shipped as native for both iOS and Android. - Source: dev.to / 8 months ago
  • Design Systems with Web Components
    I was recently able to sit down with some of the core members of Ionic, who also created Stencil a toolchain for building Design Systems and Progressive Web Apps. We talked at great length how typically companies are approaching Ionic from a Design Team and need help building components. As a developer I wanted to talk about the Web Components that are used within the Design System first. There was a decent amount... - Source: dev.to / over 1 year ago
  • Turning HTML, CSS, JS project into an app
    Look into Ionic Framework https://ionicframework.com/ or Cordova. They might be overkill for what you’re trying to do, but they allow you to create cross-platform apps via html/css/js. Source: over 1 year ago
  • Getting Started with PayloadCMS & Vue JS
    Ionic Framework UI Components are used to build a website and then a mobile application is built using Ionic Capacitor. Ionic UI components are not required but are used for UX. The vue js code presented here will work fine in a separate application. - Source: dev.to / over 1 year ago
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What are some alternatives?

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

Svelte - Cybernetically enhanced web apps

React Native - A framework for building native apps with React

Vue.js - Reactive Components for Modern Web Interfaces

Flutter - Build beautiful native apps in record time 🚀

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

Apache Cordova - Platform for building native mobile applications using HTML, CSS and JavaScript