Best Free Development Frameworks of 2025

Flutter is a user interface toolkit developed by Google that enables the creation of stunning, natively compiled applications for mobile, web, and desktop platforms from a single codebase. With its Stateful Hot Reload feature, you can bring your app to life in mere milliseconds. The toolkit offers a vast array of fully-customizable widgets that allow developers to construct native interfaces in just minutes. This swift development process emphasizes delivering features that enhance the native user experience. Its layered architecture provides extensive customization options, leading to rapid rendering and designs that are both expressive and adaptable. Flutter’s widgets are designed to accommodate essential platform-specific variations, including scrolling, navigation, icons, and fonts, while the Flutter code is compiled into native ARM machine code using Dart's native compilers. The hot reload capability significantly streamlines workflows, enabling developers to experiment, create user interfaces, introduce new features, and resolve bugs more efficiently. With Flutter, you can enjoy sub-second reload times without losing the state of your application, whether you're working on emulators, simulators, or physical devices. This seamless experience fosters a more agile development process, making it easier to innovate and iterate on app designs.

Ionic Framework is an open-source UI toolkit that allows you to build high-quality, performant mobile and desktop apps with web technologies HTML, CSS and JavaScript. It also integrates with popular frameworks such as React and Angular. Install Ionic to get started or follow our First App Tutorial for the core concepts. Installation Guide. Guides that will guide you through the installation of the framework and setting it up. UI Components. Explore Ionic Framework's beautiful UI component library. Native Functionality. Integrate native device plugins like Bluetooth, Maps and HealthKit. Theming. Learn how to modify and customize the visual design of your Ionic app to suit your brand. Overview. Overview. Ionic Framework focuses primarily on the frontend UX of an app's UI interaction -- UI controls and interactions, gestures, animations. It is easy to use and integrates well with other libraries or frameworks such as Vue, React, and Angular.

React Native merges the advantages of native app development with the capabilities of React, an exceptional JavaScript library designed for crafting user interfaces. You have the flexibility to integrate it into your current Android and iOS projects, or you can opt to build an entirely new application from the ground up. The fundamental building blocks of React translate into native UI components, ensuring that your application interacts with the same native APIs utilized by other applications on the platform. With the ability to create platform-specific versions of components, a single codebase can efficiently operate across different platforms. This capability allows one development team to manage applications on both platforms while leveraging the unified technology of React. Not only does React Native empower developers to build fully native applications, but it also ensures an uncompromised experience for users. By offering a core collection of platform-agnostic native components such as View, Text, and Image, it directly corresponds to the native UI elements of the platform, simplifying the development process. Ultimately, React Native fosters innovation by enabling developers to create high-quality applications that feel right at home on any platform.

A JavaScript UI library and framework designed to enhance web development efficiency, the JS Framework facilitates the creation of cross-platform web applications with an impressive collection of 102 UI widgets alongside feature-rich CSS and HTML5 JavaScript controls. By utilizing these pre-built widgets and UI components, developers can save over 3000 hours in development time, allowing them to build web user interfaces 30% faster. Our team has curated the finest design concepts, thoughtfully evaluating the user experience of each Webix component across five distinct conceptual designs. Additionally, our knowledgeable support service team is well-versed in the intricacies of our library and is ready to assist with any challenges you may encounter. For further engagement, we offer an official support forum where users can interact and troubleshoot alongside our developers. Employing the Webix JS framework ensures that your project benefits from clean and lightweight code grounded in object-oriented programming principles, while also allowing seamless integration with the jQuery library, MVC frameworks such as AngularJS, React, Vue.js, and Backbone.js, as well as third-party UI extensions, enriching the overall development experience. This comprehensive solution not only accelerates the development process but also enhances the functionality and design of your web applications.

Getcss is an intuitive CSS framework. Create responsive web applications with getcss. It's easy to use, open source, and free. Features: * Accelerate your development - Write less, get more * Zero dependencies * Latest technologies - Supports latest browsers, HTML5, CSS3 * Easy to learn, easy to use - as easy as 1-2-3 * Free and Open Source - Develop for yourself or your client * Responsive User Interface - Developed with mobile first approach * Media queries and Flexbox based.

Gatsby serves as a contemporary, open-source framework for website development, optimizing site performance through cutting-edge web technologies like React and GraphQL. This allows developers to create incredibly fast applications and websites without needing to possess in-depth knowledge of performance optimization. The Preview feature acts as a secure environment for developers, designers, and content creators, offering a temporary URL to instantly view and assess changes in context—ensuring that new elements integrate seamlessly with existing content prior to publication. Additionally, Gatsby Builds offers a remarkably swift continuous deployment service for Gatsby projects, boasting build times that are up to 20 times quicker than competing solutions, and achieving up to 1000 times faster performance with the introduction of Incremental Builds in beta. Automated Lighthouse performance audits and deployment previews enable users to identify and rectify errors before finalizing their work. By choosing Gatsby, you gain the flexibility to deploy your site to any preferred content delivery network (CDN), enhancing accessibility and reach. Embrace the ease of building and deploying with Gatsby, and watch your digital creations thrive.

React simplifies the process of building interactive user interfaces by allowing developers to design straightforward views for each state of their application. When your data changes, React intelligently updates and renders only the components that need to be altered, ensuring efficiency. The use of declarative views contributes to a more predictable coding experience and facilitates debugging. You can create self-contained components that maintain their own state and combine them to construct intricate UIs. Since the logic for these components is implemented in JavaScript rather than templates, it allows for seamless data transfer throughout the application while keeping the state separate from the DOM. React does not impose restrictions on your technology stack, enabling you to introduce new features in React without the necessity of overhauling your existing codebase. Each React component features a render() method that accepts input data and determines what should be displayed. This particular example employs an XML-like syntax known as JSX, and the input data provided to the component can be accessed through this.props within the render() method. Overall, this flexibility makes React a powerful tool for modern web development.

Titanium allows developers to create cross-platform native mobile apps using JavaScript, which can run seamlessly on various platforms. By leveraging a comprehensive set of native UI and non-visual components, including those for networking and media, developers can craft exceptional mobile experiences. The framework simplifies the integration of third-party modules, thanks to its extensive library of community-developed and premium support options. With the Titanium SDK, you can build mobile applications that utilize JavaScript while interacting with the underlying native APIs of different platforms. This capability enables you to create rich, feature-packed applications that can share over 80% of their codebase across different mobile environments. TiDev distributes Titanium under the Apache Public License (Version 2), making it available for both personal projects and commercial ventures at no cost. Additionally, developers can easily create a fundamental user interface, handle events effectively, and explore various aspects of mobile design, such as animations, gestures, and orientation adjustments, thus enhancing user engagement. Overall, Titanium serves as a powerful tool for those aiming to maximize their reach in the mobile application market.

Mithril.js is a contemporary framework for client-side JavaScript, specifically designed for creating Single Page Applications (SPAs). Its lightweight nature, being under 10kb when gzipped, allows for rapid performance while offering built-in routing and XHR functionalities. Notable companies such as Vimeo and Nike, along with open-source projects like Lichess, have adopted Mithril.js. For seasoned developers interested in understanding how Mithril.js stacks up against other frameworks, a dedicated framework comparison page is available. A straightforward approach to experiment with Mithril.js is to load it via a CDN and follow a brief tutorial. This tutorial will guide you through most of the API features, including both routing and XHR, and can be completed in just ten minutes. With Mithril.js, you can easily update the button's label with a click, and thanks to the m.mount function, there is no need for you to manually invoke m.render; Mithril.js automatically handles the reflection of changes in the count variable within the HTML. This seamless integration enhances the developer experience, making Mithril.js a compelling choice for SPAs.

.NET Multiplatform App UI (.NET MAUI), is a framework that allows you to build modern, multi-platform natively compiled iOS and Android apps using C# or XAML in a single source codebase. .NET MAUI utilizes the most recent technologies to build native apps on Android, iOS and macOS. It abstracts them into a single framework that is built on .NET 6. Native apps are designed to look and feel exactly like the operating system they belong to by default. Layouts can be automatically adjusted to each device with no additional code. Platform APIs can be accessed directly from C#. They allow you to access over 60 platform features, including isolated storage, sensors and geolocation.

Expo is a versatile open-source platform that allows developers to craft universal native applications using React. It encompasses an extensive suite of tools and services aimed at simplifying the processes of development, review, and deployment. With Expo, developers can either start fresh with new projects or incorporate existing React Native applications, taking advantage of features such as file-based routing and TypeScript support to create stack and modal screens with minimal setup. Its fast refresh functionality enables real-time updates on devices through the Expo Go app, enhancing the development experience. Additionally, developers have the option to utilize any library, SDK, or write custom native code, providing unrestricted access to device APIs. Furthermore, Expo promotes collaboration among team members by allowing role-based access, generating QR codes for feature previews, and integrating seamlessly with GitHub to facilitate efficient pull request reviews. This combination of features not only accelerates the development workflow but also enhances communication and productivity within teams.

DotConnect is an enhanced data connectivity solution that uses ADO.NET architecture. It also includes a development framework that incorporates a variety of innovative technologies. dotConnect offers a complete solution to developing data-related web sites and applications. It includes high-performance data providers for major cloud applications and databases. dotConnect can be used for all aspects of modern application development, including web applications and services, enterprise development, and windows forms applications. Providers of dotConnect support such ORMs Entity Framework, Entity Framework core, NHibernate, and LinqConnect. Entity Developer is the visual designer that comes with each provider. dotConnect ADO.NET providers of cloud applications and databases, such as Salesforce, PostgreSQL SQLite, SQLite, SQLite, Salesforce CRM, SugarCRM. Zoho CRM. QuickBooks, FreshBooks. MailChimp.

We want to help your team grow using the best tools and practices. We offer a wide range of training plans for Symfony and PHP, with different support methods. Symfony's creators offer many intelligent solutions that will help your business grow during every stage of your web project development. You or your team can benefit from a variety of pre-packaged and custom-made services. Our Symfony / PHP applications are created by our development teams in compliance with the current state-of-the-art and the best practices. We can validate your complementary profiles, Front-end or Back-End, according to your requirements. Our 50+ international partners network is an expert in the most recent web development tools and methods.

More than 1,600 components and frameworks are included for Windows Forms (WPF, ASP.NET Core), UWP and WinUI (Web Forms MVC, Core), UWP and WinUI (Xamarin and Flutter), Angular, Blazor and Vue, and React. You will find the most requested components like charts, grids and schedulers, diagrams maps gauges docking, ribbons and more! To streamline your business, we work with the best and brightest minds in the industry.

Django is an advanced web framework for Python that promotes swift development and emphasizes straightforward, practical design. Created by skilled developers, it alleviates many of the complexities associated with web development, allowing you to concentrate on building your application without the need to start from scratch. The framework was crafted to enable developers to transform their ideas into fully functioning applications in the shortest time possible. Prioritizing security, Django assists developers in sidestepping numerous prevalent security pitfalls. Many of the most active websites utilize Django's capability to scale rapidly and adapt flexibly to varying demands. The framework comes equipped with numerous built-in features designed to tackle various common web development challenges. Moreover, Django efficiently manages essential tasks such as user authentication, content administration, site maps, RSS feeds, and much more — all available right from the start, making it a powerful tool for developers. Its comprehensive toolset ensures that developers can implement various functionalities with minimal effort, enhancing productivity and project turnaround time.

In the last twenty years, Rails has propelled numerous businesses to reach millions of users and achieve valuations in the billions. More than six thousand contributors have written code for Rails, while countless others have played vital roles in community engagement through advocacy, documentation, and reporting issues. It handles a variety of tasks such as rendering HTML templates, updating databases, managing email communications, maintaining real-time pages with WebSockets, queuing jobs for asynchronous execution, and storing uploads in the cloud, all while ensuring robust security against common vulnerabilities. Databases become dynamic with business logic encapsulated in intricate objects, which model associations between tables, trigger callbacks upon saving, encrypt sensitive information effortlessly, and articulate SQL queries in a clear manner. Controllers serve as the bridge between the domain model and the web, processing incoming parameters, managing caching headers, and rendering templates, ultimately responding with either HTML or JSON formats. This seamless integration of features makes Rails a powerful framework for modern web development.

Laravel is an innovative web application framework known for its expressive and elegant syntax. We've established a solid foundation that allows you to focus on creativity without getting bogged down by trivial details. Our passion for clean code mirrors your own, and the simple yet powerful syntax places incredible capabilities right at your fingertips. Every feature has been meticulously designed to ensure a delightful developer experience. You can easily dispatch background jobs for lengthy operations such as sending emails and generating reports, all while keeping response times incredibly fast. Eliminate the hassle of authentication; Laravel offers built-in scaffolding for secure, session-based authentication, and with Laravel Sanctum, implementing authentication for APIs and mobile apps becomes a breeze. Furthermore, Laravel is dedicated to providing an unparalleled testing experience that you will truly appreciate. Say goodbye to fragile tests that are difficult to manage; instead, enjoy beautiful testing APIs, efficient database seeding, and seamless browser testing, empowering you to deploy your applications with complete confidence. This comprehensive approach aims to enhance both productivity and satisfaction for developers in every project.

Discover an effective method for creating applications using Angular that allows you to leverage your code and skills for multiple deployment platforms, including web, mobile web, native mobile, and native desktop. Experience optimal performance on the Web Platform today and enhance it further through the use of Web Workers and server-side rendering techniques. Angular empowers you to manage scalability effectively, enabling you to meet substantial data needs by constructing data models with tools like RxJS, Immutable.js, or other push-based frameworks. Quickly develop features using straightforward, declarative templates, while also having the ability to expand the template language by incorporating your own components alongside a diverse selection of pre-existing ones. Gain immediate Angular-specific assistance and feedback across nearly all integrated development environments and text editors. This cohesive approach ensures that you can prioritize crafting exceptional applications instead of grappling with code issues. Ultimately, from initial prototype to widespread deployment, Angular provides the productivity and scalable framework necessary to support some of Google's largest applications, ensuring your projects can grow seamlessly.

jQuery Mobile is a user interface framework based on HTML5, crafted to create responsive websites and applications that function seamlessly across smartphones, tablets, and desktop computers. It elevates the "write less, do more" philosophy by allowing developers to create a single, cohesive, and brand-focused responsive website or app instead of needing to develop separate versions for various mobile devices or operating systems. We emphasize that a website or app should embody your brand identity rather than conforming to the characteristics of any specific OS. To facilitate the creation of highly personalized themes, we offer ThemeRoller for mobile, which simplifies the process of customizing colors and downloading tailored themes through a user-friendly drag-and-drop interface. Additionally, we utilize CSS3 properties to achieve visually appealing designs without unnecessary excess. For optimal performance and efficiency, we suggest using our tool to create a bespoke bundle that includes only the components essential for your project, ensuring a streamlined experience. This way, developers can maintain focus on their unique branding while providing a versatile user experience.

Mobile Angular UI functions as a mobile user interface framework, similar to Sencha Touch and jQuery Mobile. If you are familiar with AngularJS and Twitter Bootstrap, then you are already equipped to use it! This framework offers crucial mobile components that Bootstrap 3 lacks, including switches, overlays, sidebars, scrollable regions, and fixed top and bottom navigation bars that remain stable during scrolling. It utilizes powerful libraries such as fastclick.js and overthrow.js to enhance the mobile user experience. With no reliance on jQuery and minimal additional Bootstrap JavaScript, you can easily learn a handful of AngularJS directives to create your layouts. Mobile Angular UI closely follows Bootstrap 3 syntax, making it quite simple to adapt an existing desktop web application for mobile use. Furthermore, a compact CSS file is available to facilitate the reverse process, allowing you to create a fully responsive and touch-friendly interface applicable in various environments. Additionally, FontAwesome Icons replace Glyphicons by default, enhancing the visual appeal of your applications. Overall, this makes Mobile Angular UI a versatile choice for developers aiming to bridge the gap between mobile and desktop platforms seamlessly.

An incredibly powerful, adaptable, and comprehensive frontend toolkit awaits you. With Bootstrap, you can create and tailor your projects using Sass, take advantage of its prebuilt grid system and various components, and enhance your work with dynamic JavaScript plugins. Get started with Bootstrap by either using the CDN, installing it through a package manager, or downloading the source code directly. The framework employs Sass to deliver a modular and customizable structure, allowing you to import only the components you require, set global options like gradients and shadows, and craft your own CSS using our extensive variables, maps, functions, and mixins. By importing just one stylesheet, you gain immediate access to the full range of features within our CSS. This provides the simplest method for customizing Bootstrap while ensuring you only include the necessary CSS for your project. As Bootstrap 5 continues to advance with each new release, it increasingly leverages CSS variables for global theme styles, specific components, and even utility classes. Additionally, we offer a wide array of variables for colors, typography, and more, which can be utilized throughout your project, making customization both efficient and straightforward. Embrace the evolution of web design with Bootstrap, and unlock the potential for creating stunning, responsive, and unique user experiences.

Svelte Native is an innovative framework for mobile applications that utilizes Svelte, allowing developers to create mobile apps with the familiar web framework they already use. With Svelte Native, you can develop cross-platform applications for both iOS and Android without relying on web views, ensuring that your apps deliver genuinely native user interfaces and performance. This approach enables the sharing of skills and code between web and mobile platforms seamlessly. It leverages the full potential of Svelte, including features like transitions, stores, and reactivity, providing one of the most enjoyable development experiences in the mobile space. By utilizing NativeScript, Svelte Native offers a fresh perspective on mobile app development. Unlike other JavaScript frameworks such as React Native and NativeScript-Vue, which perform most of their operations directly on the mobile device, Svelte Native optimizes the process by moving significant work into a compilation step that occurs during app building. This means that instead of employing methods like virtual DOM diffing, Svelte generates code that directly updates the native view components as the application's state changes. This results in faster performance and a more efficient development process for mobile applications. Additionally, Svelte Native's unique architecture allows developers to focus more on building features rather than dealing with complex rendering mechanisms.

Ember.js stands out as a highly efficient and robust JavaScript framework designed for developing contemporary web applications. It offers a comprehensive suite of tools necessary for crafting dynamic user interfaces compatible with any device. Many of the world's leading development teams have relied on Ember for years, continuously refining their products. With an inherent scalable UI architecture, you will follow the same best practices employed by these elite organizations throughout your project. The framework’s seamless out-of-the-box experience ensures that you can start building immediately and maintain a steady release schedule over the years. Leverage our extensive expertise to enhance your team's productivity at an accelerated pace. Additionally, Ember CLI serves as the backbone for modern Ember applications, equipping developers with code generators that effortlessly create new components and organize files correctly. Furthermore, Ember applications come equipped with an integrated development environment, featuring quick rebuilds, automatic reloading, and a built-in test runner to streamline the development process even more!

Framework7 is an open-source framework that enables the development of mobile, desktop, and web applications that possess a native appearance. It serves as a crucial prototyping tool, allowing developers to present a functional app prototype swiftly when needed. With an impressive array of UI components readily available, Framework7 facilitates the creation of web apps, progressive web apps (PWAs), and native applications for both iOS and Android platforms. When combined with additional tools such as Electron and NW.js, it also supports the development of native desktop applications. Users have the flexibility to utilize their preferred tools while working with Framework7, as it only requires basic HTML, CSS, and JavaScript without imposing any additional frameworks. The process of app development with Framework7 is as straightforward as building a website. Moreover, in addition to its core JavaScript library, Framework7 offers components specifically designed for Vue.js, React, and Svelte, enhancing the development experience with structured data, data bindings, and the benefits of these popular frameworks. This versatility makes Framework7 a compelling choice for developers seeking to build robust applications across various platforms.

NW.js, which was formerly referred to as node-webkit, allows users to directly access all Node.js modules from the DOM, offering an innovative approach to building applications using web technologies. This framework enables the creation of native applications by utilizing HTML5, CSS3, and WebGL, providing full compatibility with browser features. It seamlessly integrates Node.js APIs and third-party modules, allowing for direct calls to Node.js modules from both the DOM and web workers. Compatible with Linux, Mac OS X, and Windows, NW.js is built on the foundation of Chromium and Node.js. Additionally, it simplifies the process of converting a web application into a native one, opening up limitless opportunities for app development. With its user-friendly native UI library, frameless window options, easy packaging and distribution, npm compatibility, debugging features, comprehensive documentation, kiosk mode, file dialogs, and media support, NW.js enhances the developer experience. Furthermore, it supports advanced functionalities like web components, drag & drop, WebGL, WebRTC, datalist, and CSS3, while also ensuring data persistence for applications. This combination of features makes NW.js a versatile choice for developers looking to leverage web technologies in native app creation.