Best Free Web App Development Platforms of 2025

Hostinger Horizons is a no-code platform that empowers users to build and deploy web applications in minutes. Using AI, it allows entrepreneurs and businesses to turn their ideas into real applications without needing coding skills. Simply describe your app’s functionality, make adjustments using prompts, and deploy it with a single click. With responsive design and mobile-friendly features, apps created with Hostinger Horizons are ready for use on any device. The platform also includes web hosting and professional email services, helping users streamline the app development process and focus on growing their business. It’s an ideal solution for anyone looking to create a custom app quickly and cost-effectively.

DHTMLX is a powerful and easy-to-use JavaScript UI library that provides a wide range of customizable and flexible components for building modern and responsive web applications. It offers 30+ full-featured UI widgets, including grids, charts, diagrams, schedulers, gantt charts, calendars, trees, forms, and more. These components are optimized for fast rendering, ensuring that your application runs smoothly in all browsers and devices. DHTMLX is compatible with popular web frameworks such as React, Angular, and Vue.js. This makes it an excellent choice for developers who are already working with these frameworks and want to add a powerful UI library to their projects. Moreover, DHTMLX supports different data sources and formats, making it easy to integrate with various back-end technologies. DHTMLX provides extensive configuration and customization abilities for its UI components, allowing developers to tailor their appearance and behavior to meet specific application requirements and extend its functionality with custom features if needed. DHTMLX also has comprehensive documentation that covers every aspect of the library, including detailed API references, tutorials, and code examples, as well as an active community.

CaptainCasa Enterprise Client is a high-performance developer workbench for developing applications with Java on the server that run in the browser independent of the operating system. The interface itself is created with the usual means Html, Css, etc by a design specialist and is independent of the business application so that a change in the interface programming is independent of the business application. Due to the fast development, easy maintenance and long-term usability of the Java code of the business application, an excellent protection of the investment in the own software is achieved.

Alpha Anywhere offers the industry's only low-code/no-code app development platform to help users across organizations craft secure, data-driven business apps with outstanding user experiences.  Alpha Anywhere low-code software saves developers time building cross-platform apps that can integrate with existing systems of record and workflows, and work offline. Apps can validate data entries against offline and online databases, trigger email reports and SMS texts, generate custom reports, and include additional security or authentication to protect corporate data.  Key features include robust offline capabilities, rich data integration (API) and full-stack development. The platform includes pre-built app templates, a rich knowledge base, free videos, and tutorials for implementing advanced features. To speed digital transformation, the no-code app builder (Alpha TransForm) allows non-developers to digitize paper forms. The software crafts mobile forms in minutes, and includes a powerful data analytics engine. Develop and design unlimited apps for free. Only pay when you deploy your app.

Stadium allows you to quickly build and host web apps using a drag-and-drop interface. It is a versatile tool for developers that connects to APIs and databases to quickly create data-rich web apps.

Firebase is an invaluable resource for developing and managing successful applications, gaining popularity among development teams ranging from startups to large corporations, thanks to its robust backing by Google. It offers a suite of reliable products and solutions that accompany your app throughout its lifecycle. You can easily automate routine development tasks by installing pre-packaged, open-source code bundles. Furthermore, Firebase allows seamless integration with your team's preferred tools, enabling you to tackle intricate challenges and enhance the overall user experience of your app. Whether you want to personalize the onboarding process, boost user engagement, or introduce new features, Firebase has you covered. With comprehensive documentation and cross-platform SDKs, Firebase supports app building and deployment across Android, iOS, web platforms, C++, and Unity. You can discover how to initiate a Firebase project, register your applications, and incorporate the Firebase SDKs tailored to your specific platform—be it iOS, Android, or the web. Additionally, you can delve into Firebase project concepts, explore detailed insights into project permissions and management systems, and prepare your application for launch effectively, ensuring that you have all the tools necessary for a successful deployment. Overall, Firebase stands as a pivotal ally in the app development arena.

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.

Build enterprise apps 20x faster with 100x less code. Oracle Application Express (APEX) is a low-code development platform that enables you to build scalable, secure enterprise apps, with world-class features, that can be deployed anywhere. Using APEX, developers can quickly develop and deploy compelling apps that solve real problems and provide immediate value. You won’t need to be an expert in a vast array of technologies to deliver sophisticated solutions. Focus on solving the problem and let APEX take care of the rest. Oracle APEX is the world’s most popular low-code platform for enterprise apps. See how customers are using APEX, get started today, and become a part of the community. Did you know that if you have Oracle Database, you already have Oracle APEX? APEX is a fully supported no-cost feature of Oracle Database – the most complete, integrated, and secure data platform for any scale deployment. Using APEX, developers can quickly develop and deploy compelling apps that solve real problems and provide immediate value.

ServBay is an all-in-one development environment management tool designed to ease the burden of maintaining development environments. It allows developers to start coding within minutes without spending time installing and debugging the development environment. ServBay includes various development languages and database components, such as PHP, Nodejs, and relational databases like MariaDB (MySQL) and PostgreSQL. Additionally, it supports NoSQL databases like Redis and Memcached. It also includes Caddy for Web services, and dnsmasq for DNS services, along with essential developer suites like email services, storage services, and queue services. A significant feature of ServBay is its support for using nonexistent domains and TLDs in local development, and creating free SSL certificates for these domains. This enables developers to work in an encrypted HTTPS environment, enhancing the security of the development process while significantly saving on domain and SSL certificate costs.

Break through the coding limitations and develop superior business websites with increased efficiency. Create production-ready experiences without the need for coding, and transform your design aspirations into reality utilizing neat, semantic HTML5, CSS, and JavaScript through the Webflow Designer. Construct entirely bespoke databases tailored for dynamic content types, such as e-commerce platforms. Effortlessly design engaging interactions and animations, and launch your site on a robust, dependable hosting network that adapts to your business growth with just a click. This scalable infrastructure is shared with major platforms such as Netflix, Pinterest, Airbnb, Slack, and Adobe, ensuring your site remains online without interruption. Forget about managing updates, installing packages, or facing technical frustrations. You can effortlessly create, launch, and refine new marketing initiatives without pulling your product team away from their core tasks. Enjoy features like metadata controls, automatic XML sitemaps, straightforward 301 redirects, and canonical tags. Furthermore, seamlessly connect your marketing tools through built-in integrations while having the option for custom code flexibility to enhance your website’s functionality as needed. Embrace the future of web design where creativity meets practicality.

Kissflow is an easy-to-use, low-code platform for custom application development tailored to business operations. Kissflow empowers process owners and IT developers to automate and build processes and applications for internal business operations.

A reliable and flexible solution for developing mobile applications. The truth is, the demand for app creation is high, yet there is a scarcity of IT resources to fulfill that need. This is where AppSheet comes in, a no-code development tool that empowers anyone to create and launch applications. It enables your business users, along with various team members, to take charge of app creation. However, it's crucial to maintain centralized oversight and control through AppSheet for the Enterprise. This platform serves as a dependable resource for constructing, distributing, and overseeing mobile applications. It fosters innovation, adaptability, and responsiveness within your organization while ensuring robust security and governance measures are in place. By connecting data and applications, it offers a seamless platform that integrates fully with Google Workspace. You can also link with Google Workspace tools such as Gmail, Sheets, and Spaces, while connecting with external applications like Office 365, Dropbox, and Salesforce.com. Additionally, it allows for integration with SQL databases, Apigee, REST APIs, and OData, making it a comprehensive solution for all your app development needs. Ultimately, AppSheet not only simplifies the app creation process but also enhances collaboration across teams.

SpreadsheetWeb is a platform that does not require any code and is designed for users who work with Microsoft Excel. SpreadsheetWeb allows businesses to turn their Excel expertise into robust web apps with minimal reliance on IT resources. SpreadsheetWeb allows ordinary Excel users to create secure, responsive and database-driven applications from their Excel spreadsheets. The system transforms the data collection mechanism from individual spreadsheets into structured databases, while keeping the formula structure intact. This provides greater governance for important information. SpreadsheetWeb provides a complete platform for business users who want to create and manage web applications. It also has built-in workflows and reporting capabilities.

The Neptune DX Platform [Neptune DXP] is a rapid application development platform. This means we build on a low-code/no-code app development approach, enabling Neptune DXP to digitize and optimize business processes and user interfaces. At its core, our enterprise app development platform consists of two modules with comparable functionality and approaches: the Neptune DXP - SAP Edition (an SAP ABAP add-on) and Neptune DXP - Open Edition (Node.js-based edition). Both installation variants of Neptune DXP enable faster enterprise application development, code reusability and compact change management. Our approach is that Neptune DXP with our two editions offers both, the leading central platform for integrated and scalable app development and, thanks to our direct NetWeaver ABAP integration, the best interface available on the market to all SAP systems (incl. SAP S/4HANA and C/4HANA).

Experience a straightforward and accessible low-code platform that allows you to design business applications tailored to your specific requirements. You can develop your solutions swiftly and intuitively without making any compromises. Rather than spending valuable time building a business application from the ground up, leverage Tabidoo to craft your desired solution in a fraction of the time. With an array of features such as dashboards, data views, imports, exports, and integrations, Tabidoo provides you with a powerful tool for effective business management. Engaging with your data will become both simple and enjoyable. The platform offers app templates with pre-designed solutions that can be easily modified to suit your needs. Among the most sought-after solutions are those for digital companies, customer relationship management (CRM), e-commerce, and task management. At the core of Tabidoo lies data presented in clear and straightforward tables, enabling you to manage it seamlessly and intuitively, thus enhancing your overall productivity. Discover the ease of using Tabidoo and transform your approach to business application development.

sterlo, an Enterprise No-Code Platform, allows users to create Web and Mobile Apps in a code-free setting. Designed to empower companies of all sizes and across different industries, sterlo provides unparalleled freedom and flexibility in building fully-functional applications. sterlo has a variety of features including secure authentication, custom data connection, document management system and communication management. sterlo is a digital transformation platform that facilitates digital transformation in a meaningful way and changes the way applications are developed around the world.

With Microsoft Power Apps, everyone can now quickly create and share low-code applications. Rapidly build low-code apps to improve your organization's agility and solve difficult problems. Your team can build and launch apps immediately using pre-built templates. They can also be used for drag-and-drop simplicity and quick deployment. Then, roll out continuous improvements as necessary. Give everyone the power to build the apps they need with advanced functionality previously only available to professional developers--including pre-built AI components. Professional developers have the tools to seamlessly extend app capabilities using Azure Functions and custom connectors for proprietary or on-premises system. Connect your apps with hundreds of data sources using a collection of more than 260 connectors. The Common Data Service allows you to bring your data together as one source of truth. This will allow you to modernize processes and customize and extend Office 365, Dynamics 365, and other products.

Managing your tasks, projects, and team effectively is crucial, and with Amazon Honeycode, you have the opportunity to create an application that helps you meet your objectives without any programming skills. As your business evolves, your personalized Honeycode app can be modified to reflect these changes seamlessly. Any alterations made to your app or its data are immediately communicated to your team, ensuring everyone stays informed. You can customize your Honeycode application so that each member of your team only accesses the relevant information they require. Moreover, your tailored Honeycode app can be developed for both web browsers and mobile devices, allowing your team to collaborate from any location. Additionally, you can set your Honeycode app to automatically alert the team when updates occur or send reminders for tasks that require their attention, promoting a more organized workflow. This flexibility and functionality make Honeycode an invaluable tool for any team striving for efficiency.

A web-based solution that allows businesses to develop applications using component library, live testing, event blocks, etc. Thunkable allows you to create beautiful native apps that are easy to use without any programming. Your app can be published on Android, iOS, or the Web. Incubated at Google, MIT, and backed by YCombinator. No coding required. One project, three cross platform apps. With lottie animations, you can add motion and smooth transitions into your app. Every Thunkable app project can be automatically created as a native Android, native iOS, or mobile web app. It's quite magical. Start a new project or modify an existing sample app from our growing collection of open-sourced projects. Thunkable is home to an engaged and active community that can help you with any app-building questions. Live chat support is also available. You can create your own apps by simply dragging and dropping your favorite parts and connecting them with blocks.

OutSystems stands out as the leading low-code platform tailored to assist users in creating and deploying superior applications more efficiently. By merging the efficiency of low-code development with robust mobile and enterprise integration features, OutSystems empowers users to visually design and oversee their complete application portfolio, coordinate interconnected applications and components, integrate smoothly with current systems, and enhance DevOps workflows. This holistic approach significantly accelerates the app development lifecycle, ensuring that businesses can respond swiftly to changing market demands.

This platform allows you to create internal tools visually with minimal code. This platform allows people with basic knowledge of web app development to create beautiful UIs, connect data sources, and publish & share apps securely. Under the hood, a customizable Design system. A variety of pre-defined widgets, UI components and free app templates are available. Features - Autogenerate UI components - Connect, read, write data - Create workflows and business logic - Add custom JavaScript codes - Test and debug apps Publish your web app

You can build and distribute any type of web application. VIKTOR is the platform for the engineering, construction and construction industries. Your organisation can build and distribute scalable apps. Enter into a new era in engineering. Our digital building blocks allow you to quickly create web-based applications that are professional and easy to share with anyone. VIKTOR is the most popular application development platform in engineering and construction. It allows engineers to quickly create their own software solutions and share them easily with others. Engineers and other domain experts are the best people to know your business. You can empower your employees to adopt new technologies and quickly create, test, distribute and scale new software solutions to meet their needs. This leads to better solutions, higher adoption rates, and lower development cost.

Create flawless, single-codebase applications for Mobile, Web, and Desktop utilizing C#, XAML, and .NET, which is the pioneering C# & XAML platform that is free and open-source for developing genuine single-source, multi-platform applications. Achieve a remarkable 99% reuse of business logic and UI components across native mobile, web, and desktop environments, ensuring you maintain pixel-perfect precision in your design while having the flexibility to implement platform-specific features or a unique aesthetic for your application. Experience the familiarity and depth of C# and XAML, enhanced by productivity features such as hot reload, hot restart, and edit-and-continue capabilities. You can utilize well-known editors like Visual Studio, Visual Studio Code, or Rider to streamline your development process. Additionally, both community-driven and official support options are available, including chat, ticketing, and even screen-sharing assistance to help you troubleshoot and enhance your experience. Your development journey is backed by a vibrant community, ensuring you never feel alone in tackling challenges.

The first low-code cloud. Effortlessly create and deploy your backend in minutes, regardless of your experience in backend or devops. No more struggling with infrastructure provisioning, architecture planning, and complex CI/CD pipelines! Deskree offers a comprehensive suite of features, including database management, authentication, user roles and permissions, REST and GraphQL API, and more.