Best Web App Development Platforms in the UK of 2025

GW Apps

GW Apps delivers responsive, cloud-based web applications without traditional coding. Build secure, data-driven apps featuring dashboards, forms, and automated workflows, all managed through a visual interface. Role-based permissions, audit trails, and scalable architecture make deployment and ongoing changes straightforward, helping organizations launch and evolve web apps quickly with minimal IT overhead.

37 Ratings

Starting Price: $99/month / 15 users & 3 apps

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Alpha Anywhere

Alpha Software Corporation

Alpha Anywhere is the only development platform with both low-code and no-code capabilities. Developers can rapidly create secure, cross-platform mobile and web business apps. Alpha leads in offline development, ensuring that data can be captured AND accessed (database lookups/media file retrieval) offline. A powerful bi-directional API can integrate with existing systems of record and workflows, tie into web services, and meet advanced security requirements. Offers: - pre-built templates - full-stack development - sophisticated analytics/dashboards - full-stack development - scale-able, secure, and reliable cloud deployment Professional developers and citizen developers can use the Alpha TransForm mobile forms builder to digitize paper forms in minutes. Offers offline operation, built-in analytics, and unmatched speed, power, and flexibility in the no-code segment.

8 Ratings

Starting Price: $0

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SpreadsheetWeb

Pagos

SpreadsheetWeb is a no-code platform developed for business users working with Microsoft Excel. It helps businesses translate their collective Excel expertise into robust web applications with limited reliance on IT resources. The SpreadsheetWeb platform empowers ordinary Excel users to create secure, responsive, database-driven applications directly from their Excel spreadsheets. By transforming the data collection mechanism from individual file-based spreadsheets into structured databases while maintaining the formula structure, the system provides a higher level of governance for critical information. Combined with built-in workflow and reporting capabilities, SpreadsheetWeb offers an end-to-end platform for business users seeking to create and manage their own web applications.

2 Ratings

Starting Price: $30.00/month

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DHTMLX

DHTMLX is a JavaScript UI library that provides a set of highly customizable and flexible components for building modern and responsive web applications. The library includes more than 30 UI components, such as Gantt, Scheduler, Kanban, diagrams, charts, grids, spreadsheets, calendars, trees, forms, and more. DHTMLX helps to advance web development and build feature-rich data-intensive applications of any complexity. One of the key advantages of DHTMLX is its compatibility with different web frameworks, including React, Angular, and Vue.js, which makes it a great choice for developers who are already working with these frameworks. DHTMLX is also designed with performance in mind. Its components are optimized for fast rendering. A comprehensive and rich API provides a straightforward way to manipulate JavaScript/HTML5 UI widgets. The library has detailed API documentation, tutorials, and examples that help developers quickly get up to speed and start building their apps.

Starting Price: $79

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Intellimas

Singletree Technologies

Intellimas is a highly configurable, no code/low code solution with spreadsheet features. This allows you to build a variety of web applications that end users will love. Intellimas is built for fast data entry, analytics, exception management, and easy retrieval of live data from other systems, if required. The grid UI allows for an easy transition from spreadsheets. This comprehensive view, along with our new form view, provide you with the flexibility to handle unlimited end uses. Intellimas is deployed on-premise or in the cloud. Companies typically implement Intellimas for one business application and usually find several others for it in a short period of time. Reach out to us for a demo and ask us about our free trial!

Starting Price: $38/Month

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Firebase

Google

Firebase helps you build and run successful apps. Backed by Google and loved by app development teams - from startups to global enterprises. Products and solutions you can rely on through your app's journey. Install pre-packaged, open-source bundles of code to automate common development tasks. Easily integrate Firebase with your team’s favorite tools. Use Firebase products together to solve complex challenges and optimize your app experience. Personalize your onboarding flow, grow user engagement, or add new functionality with Firebase. Firebase provides detailed documentation and cross-platform SDKs to help you build and ship apps on Android, iOS, the web, C++, and Unity. Learn how to create a Firebase project, register apps to it, and integrate the Firebase SDKs for your products and platform: iOS, Android and Web. Learn about Firebase projects, including concept overviews, deep-dives into topics like project permissions and project management tools, or preparing to launch your app.

39 Ratings

Starting Price: $24.99 per month

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RadSystems

RadSystems is a robust integrated development environment tool and Low-code software that facilitates rapid application development process by reducing redundant coding time. RadSystems applications can be generated through ASP.NET Core, Python Flask, PHP Laravel, Node Express.js, Vue.js, and Quasar Framework. You can also build traditional or classic web applications using Bootstrap, jQuery, and Laravel. RadSystems Studio is a robust Low-code software that facilitates a rapid application development process by reducing redundant coding time. Through its complex engine algorithm, it is possible for an application to be generated in several programming languages from a single code base. You can publish your application to Classic Application, Single Page Application, Progressive Web Application, and Mobile Application with a single click.

22 Ratings

Starting Price: $298

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Flutter

Google

Flutter is Google’s UI toolkit for building beautiful, natively compiled applications for mobile, web, and desktop from a single codebase. Paint your app to life in milliseconds with Stateful Hot Reload. Use a rich set of fully-customizable widgets to build native interfaces in minutes. Quickly ship features with a focus on native end-user experiences. Layered architecture allows for full customization, which results in incredibly fast rendering and expressive and flexible designs. Flutter’s widgets incorporate all critical platform differences such as scrolling, navigation, icons and fonts, and your Flutter code is compiled to native ARM machine code using Dart's native compilers. Flutter's hot reload helps you quickly and easily experiment, build UIs, add features, and fix bugs faster. Experience sub-second reload times without losing state on emulators, simulators, and hardware.

9 Ratings

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CaptainCasa Enterprise Client

CaptainCasa

Rapid development and cost-effective maintenance of web applications with server-side Java. The developer uses only this most widely used development language; no html, css or javascript knowledge is required for frontend programming. Unique clear separation of UI design and logical processing. Integration of Java business logic into the design through expression language and event control. Numerous and exceptional components serve a unique overall look; unlimited use of additional CSS or JavaScript on design side. Of course, the developed applications can also be hosted on Microsoft Azure or AWS (Amazon Web Services); the developed applications can also be used in-house with simple deployment. CaptainCasa Enterprise Client protects against hidden costs and provides long-term protection of your software development investment.

7 Ratings

Starting Price: Free

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Appery.io

Appery

Appery.io is a low-code app development platform that makes creating hybrid mobile apps, web apps, and progressive web apps (PWAs) easy. Creating a custom app UI has never been easier. Leverage the speed of drag-and-drop functionality and the power of JavaScript to turn your idea into a complete application in days instead of months. Appery.io is a web, PWA, and mobile app development platform. Cross-platform applications built with Appery.io will work smoothly and look great across all popular devices and operating systems. Submit mobile apps to the App Store and Google Play, or deploy them as web apps and PWAs, all with a single codebase. Our low-code app development platform is easy to master even for total beginners. Seasoned app developers, on the other hand, will continue working with the frameworks they love, such as Ionic and Angular, augmented with visual tools to boost their productivity.

5 Ratings

Starting Price: $30 per month

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Ionic

Drifty

The Ionic Platform allows you to bring your apps to market faster with an integrated app platform built on the leading cross-platform mobile SDK. Build, secure, and deliver new mobile apps—and transform existing ones—across iOS, Android, and Web platforms from a single codebase. Full scalability—Grow from prototype to production to enterprise-scale, without having to think about capacity, reliability, or performance. Better apps, everywhere—Slash your development time and costs with a platform that lets you write once and deploy anywhere—iOS, Android, and Web. The core of the Ionic development experience is Ionic Capacitor, a cross platform native runtime that runs equally well on native iOS and Android mobile devices, as well as any web browser. The big difference is that, unlike traditional native development or cross-platform approaches, the UI of a Capacitor app runs primarily in the browser.

5 Ratings

Starting Price: Free

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PerfectApps

PerfectApps puts the power to create completely customized no-code solutions in your hands. Subject matter experts can build enterprise-ready web apps, web forms and reports in days or weeks instead of months – without coding. Using a visual designer, simply drag & drop pre-coded elements on a canvas to build the entire application. The no-code approach removes coding as a barrier between ideas and solutions. With our no-code development platform, you can: • Build & deploy web apps, web forms and reports • Automate simple or complex workflows • Send automated notifications and escalations • Create impressive drill down reports with data grids, graphs, & charts • Get full visibility to your workflow processes • Integrate with LDAP, databases and other 3rd party apps • Host in the Cloud or on your servers

4 Ratings

Starting Price: $500 per month

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Kissflow

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. We help solve two main challenges in the enterprise: The first is the custom application backlog. Enterprise IT teams say “not now” to most custom application requests from business teams. While important to a department, they aren’t vital enough to engage limited IT bandwidth. Kissflow gives internal developers a hyper-fast platform to build various applications quickly. The second is starting a citizen development program. Process owners are scattered throughout the organization and need a standard, approved, and governed way to build automated applications that are a step up from spreadsheets. With its simple no-code design, patented rules engine, and comprehensive governance module,

2 Ratings

Starting Price: $1500 per month

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Claris FileMaker

Claris

Build apps like a boss. Take on digital transformation with Claris FileMaker. Quickly build custom apps that solve your business problems today — and tomorrow. Accelerate your business, unlock your team’s creative potential, and drive to better outcomes. Need an app to solve a really sticky business problem? Build it with FileMaker. It’s got all the tools you need to roll up your sleeves and DIY — or team up with pro developers for next-level expertise. And by today, we mean today. With built-in templates, drag-and-drop design, and an intuitive graphical UI, you’ll be app-building in no time. And your work goes live the second you’re ready, across every device — that’s the power of FileMaker. Need an app now but crunched for time? Odds are you’re not alone. Explore Marketplace to find the perfect jumping off point for your own custom app — from templates and components to fully-completed vertical market apps.

2 Ratings

Starting Price: $21 per user per month

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AppSheet

Google

A trusted and scalable platform for mobile apps. Here's the reality: too many apps need to be built and there are not enough IT resources to create them. Enter AppSheet, a no code development platform that anyone can use to build and deploy apps. Empower your business users, and anyone else in your company to build apps. But ensure that those apps remain under centralized management and control with AppSheet for the Enterprise. AppSheet for the Enterprise is a trusted platform for building, publishing and managing mobile apps. It promotes innovation, agility, and flexibility throughout your organization while enabling security and governance. Connect data and software to a unified platform that’s fully integrated with Google Workspace. Integrate with Google Workspace apps like Gmail, Sheets, and Spaces. Connect to third-party apps such as Office 365, Dropbox, and Salesforce.com. Integrate with SQL databases, Apigee, REST APIs, and OData.

2 Ratings

Starting Price: $5 per user per month

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Kendo UI

Progress Software

Kendo UI is the ultimate collection of JavaScript UI components with libraries for jQuery, Angular, React, and Vue. Quickly build eye-catching, high-performance, responsive web applications—regardless of your JavaScript framework choice. Easily add advanced JavaScript components into your existing or new designs. Kendo UI’s hundreds of components handle everything you need to satisfy your users’ requirements. Add advanced components such as data grids, charts, schedulers, and calendars with just a few lines of code. Each is crafted for performance and customizability. Switching frameworks and starting new projects won’t require a new license or a big learning curve. Everything is included and up-to-date, APIs are consistent and theming is easy. Our QA process coupled with world-class support teams and a large user community means that our components will always work the way they’re supposed to—guaranteed.

2 Ratings

Starting Price: $899

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Neptune DXP

Neptune Software

Neptune Software's leading low-code app development platform - Neptune DXP – digitizes and optimizes business processes and user interfaces – at scale and with ease. Neptune DXP offers enterprise mobility, as well as the best low-code app development for SAP customers with the choice of no-code/low-code app development. The platform gives IT departments the right tools to build the apps they need. Neptune DXP provides a fast, cost-effective, and future-proof way to industrialize the development of custom applications (especially SAP Fiori, SAP mobile applications), turning your IT organization into an app factory, saving time and money on enterprise app development, app integration, and enterprise app operations.

2 Ratings

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EASA

EASA has a unique approach to deploying existing, Excel spreadsheet-based tools as secure, custom web applications. These apps can be deployed within a web portal for use by internal or external staff, including partners, resellers, suppliers or customers as well as subscription based applications (SaaS). Unlike competing solutions, sophisticated spreadsheets with VBA, macros and add-ins can be deployed with EASA. Furthermore, EASA provides full database functionality, approvals and notifications and integration with CRM and ERP systems. Common use-cases include the deployment of spreadsheets used for CPQ (configure price quote), insurance raters, financial analytics, engineering calculations, and many more. Your existing spreadsheet becomes the “engine” for the web app, eliminating any need to extract the logic and reprogram in a separate solution. If your company has made a significant investment into critical spreadsheets, then learn why AIG, Voya, HP and others rely on EASA.

2 Ratings

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AWS Amplify

Amazon

Fastest, easiest way to develop mobile and web apps that scale. AWS Amplify is an end-to-end solution that enables mobile and front-end web developers to build and deploy secure, scalable full stack applications, powered by AWS. With Amplify, you can configure app backends in minutes, connect them to your app in just a few lines of code, and deploy static web apps in three steps. Get to market faster with AWS Amplify. Use the Amplify CLI guided workflows to set up best-in-class backends for authentication, storage, APIs, and other common use cases in minutes. With AWS, your app scales automatically and transparently, with built-in best practices for security, reliability, and global availability and access to the underlying resources in the AWS console. Use Amplify Libraries to connect new or existing cloud backends to your mobile and web app. Supports Android, iOS, React, Flutter and more. Add features such as auth (Amazon Cognito), storage (Amazon S3), data, AI/ML, and more.

2 Ratings

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GoodBarber

GoodBarber is an App Builder, developed in France, enabling users to create native mobile apps for iOS and Android and PWAs (Progressive Web App) without coding. By industrializing the creation process, GoodBarber can significantly reduce the cost of owning an app. With more than 40 million apps downloaded each year, GoodBarber receives ongoing feedback to maintain the quality, performance and robustness of its apps at the highest level. GoodBarber's offer is made up of 3 main products: - eCommerce apps: providing an impeccable shopping experience on smartphones has become an essential requirement for doing business online. - Content Management apps : for content editor, community manager or local business manager. your message must be accessible from several channels to reach your audience. Your readers will access it from a native mobile app for iOS and Android or a PWA. - Reseller program: generate income by creating and selling apps without coding

1 Rating

Starting Price: $25.00/month

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TSQL.APP

UX1 BV

TSQL.APP is a web-based SQL platform for building data-driven applications directly within SQL Server. Featuring a built-in IDE, it enables developers to create responsive web apps using SQL for backend logic and UI interactions. Key features include: Dynamic UI Components: Cards represent database records in list and form views, with customizable modals for inputs, alerts, tables, and real-time reports. Action Scripting: SQL-based action scripts define app behavior, enabling CRUD operations and complex workflows. Real-Time Interactivity: Reports auto-refresh, and audio/visual alerts provide instant user feedback. Security and Accessibility: Supports secure logins, cloud access, and file management through meta tables. Extensibility: Integrates with .NET CLR for advanced operations. TSQL.APP is ideal for building adaptable business apps with responsive data handling, streamlined workflows, and custom user interactions.

1 Rating

Starting Price: €220 5 Developers/Users

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OutSystems

OutSystems is the number one low-code platform that is specifically designed to help users build and deliver better apps faster. Combining the power of low-code development with advanced mobile and enterprise integration capabilities, OutSystems enables users to visually develop and manage their entire application portfolio, stage interdependent apps and components, seamlessly integrate with existing systems, and streamline DevOps processes.

1 Rating

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AppGini

BigProf Software

AppGini helps you develop responsive web database applications instantly. You do not need to have any programming background to use it. Just define your database, set some options, click the Generate button, and you're done! And because these improvements are all based on the valuable feedback of thousands of users, AppGini has become an outstanding data management product essential for small businesses, freelancers and database developers. Messages plugin allows your AppGini app users to easily and securely communicate without leaving the app, and without having to exchange emails/contact info. This is done through an intuitive webmail-like interface, except it doesn't have the annoying distractions of email ads and spam. And you have full control over which users/groups are allowed to communicate together. Mass update plugin makes it very easy to apply a change to multiple records at once. Update order statuses, invoice payments, task priorities.

1 Rating

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Adalo

Apto Labs

Turn Your Startup Idea Into Reality Without Coding! Gone are the days of searching for the perfect developer to bring your ideas to life. Automatically add interactions and database configuration without any code... or if you’ve already got your API, Adalo can integrate with that. Gone are the days of searching for the perfect developer to bring your ideas to life. Automatically add interactions and database configuration without any code... or if you’ve already got your API, Adalo can integrate with that. The best makers iterate the fastest. Now you can afford to. After hiring designers and developers, most entrepreneurs don’t have any money left to iterate on their products, so they cross their fingers and hope. With Adalo, you’re in complete control to add, adjust, or even build a new app. Our company is named after Ada Lovelace, widely considered to be the world’s first computer programmer.

1 Rating

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Webflow

Break the code barrier. Build better business websites, faster. Without coding. Build production-ready experiences without coding. Bring your design vision to life in clean, semantic HTML5, CSS, and JavaScript — with the Webflow Designer. Build completely custom databases for dynamic content types, including online stores. Easily create immersive interactions and animations. Go live on a fast, reliable, and hassle-free hosting network that scales with your business — with a click. Built to scale — on the same network as Netflix, Pinterest, Airbnb, Slack, and Adobe. So you don’t have to worry about your site going down. No updates to run, packages to install, or headaches to deal with. Create, launch, and iterate on new marketing campaigns without distracting your product team. Metadata controls, automatic XML sitemaps, easy 301 redirects, and canonical tags. Connect your marketing tools with built-in integrations and the flexibility of custom code.

3 Ratings

Starting Price: $12 per month

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Joget DX

Joget, Inc.

Joget offers an open-source, AI-powered platform that converges no-code/low-code development with AI to rapidly build and customize enterprise applications at scale. By combining AI with visual app builders—not raw code—Joget makes app generation faster, safer, and more accessible. With Generative AI and Agentic AI capabilities, Joget Intelligence enables organizations to automate and enhance processes while maintaining oversight and compliance. Unlike typical AI code generation, Joget's visual-first approach ensures applications are maintainable and governed within collaborative human workflows. As an Application and Integration Fabric, Joget connects legacy and modern systems seamlessly. Its extensible, open-source core and plugin architecture offer unmatched flexibility, and its White Label solution allows OEMs and digital solution providers to fully rebrand the platform. Trusted by startups, global enterprises, and government agencies across the globe.

Starting Price: $5/user/month

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UI Bakery

A low-code platform for creating internal tools visually. Allows people with basic web app development understanding to build beautiful UIs, connect data sources to it, publish & share apps securely. Have a customizable Design System under the hood. Have a variety of predefined widgets, UI components, free app templates and dashboards. Features: - Autogenerate UI components - Connect, read, write data - Create workflows & business logic - Add custom JavaScript code - Debug and test apps - Publish your web app

Starting Price: $10/user/month

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Stacker

Build custom software that empowers your partners, teammates and customers. Instantly create apps powered by your data. Allow customers, clients and partners to self-serve through a branded portal. Build it yourself, whatever you can imagine. Easily create powerful software interfaces for your business's data in minutes, without needing developers. Software that you control, not the other way around. Off-the-shelf software doesn't fit your business. It doesn't fit anyone. Gain unprecedented access control over who can view and edit your data, with customizability that scales with your business. Share your data with whoever needs it. Collaborate with colleagues, connect multiple data sources, and share your apps with teammates, customers, and partners.

Starting Price: $79 per month

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GeneXus

Globant

Simplify and Automate Software Development with GeneXus GeneXus is a Low-Code Platform powered by AI that simplifies and automates software creation. By modeling instead of coding, it generates complete solutions—from user interfaces to backends—faster and with less complexity. With 35+ years of experience, GeneXus helps enterprises build scalable, AI-driven systems, modernize legacy software, and adapt to new technologies without rework. It supports development across web, mobile, and desktop platforms, seamlessly integrating databases, APIs, and enterprise systems. Trusted in over 50 countries, GeneXus is a leader in the low-code market.

Starting Price: $0

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Ignite UI

Infragistics

Build modern, data-rich applications faster with Ignite UI - the most complete UI toolkit with 120+ enterprise-grade components for every major framework. Whether you're working in Angular, React, Blazor, Web Components, or desktop platforms like WPF and Windows Forms, Ignite UI delivers blazing-fast data grids, powerful charting, and responsive layouts built for performance and scalability. From advanced tools like Pivot Grid, Spreadsheet, and DockManager, to developer-friendly CLI support and global theming, everything is designed to streamline development and deliver sleek, high-performance experiences across devices.

Starting Price: $1355 per year

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Best Web App Development Platforms in the UK

Compare the Top Web App Development Platforms in the UK as of December 2025

What are Web App Development Platforms in the UK?

GW Apps

Alpha Anywhere

SpreadsheetWeb

DHTMLX

Intellimas

Firebase

RadSystems

Flutter

CaptainCasa Enterprise Client

Appery.io

Ionic

PerfectApps

Kissflow

Claris FileMaker

AppSheet

Kendo UI

Neptune DXP

EASA

AWS Amplify

GoodBarber

TSQL.APP

OutSystems

AppGini

Adalo

Webflow

Joget DX

UI Bakery

Stacker

GeneXus

Ignite UI

Best Web App Development Platforms in the UK

Compare the Top Web App Development Platforms in the UK as of December 2025

What are Web App Development Platforms in the UK?

GW Apps

Alpha Anywhere

SpreadsheetWeb

DHTMLX

Intellimas

Firebase

RadSystems

Flutter

CaptainCasa Enterprise Client

Appery.io

Ionic

PerfectApps

Kissflow

Claris FileMaker

AppSheet

Kendo UI

Neptune DXP

EASA

AWS Amplify

GoodBarber

TSQL.APP

OutSystems

AppGini

Adalo

Webflow

Joget DX

UI Bakery

Stacker

GeneXus

Ignite UI

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