Page 3 | Best Application Development Software in the UK of 2025

CSS HTML Validator

AI Internet Solutions LLC

CSS HTML Validator for Windows, Mac, and Linux is a fast, powerful, highly user configurable, and easy to use web development tool that checks HTML, CSS, SEO, spelling, accessibility (including WCAG 2.0/2.1/2.2), PHP, XHTML, JavaScript, htmx, and links. CSS HTML Validator includes batch processing (in the Pro edition), integrated HTML/CSS editing, and much more. It works offline so it's super-fast and your privacy is protected because your documents are not uploaded to a server for checking. CSS HTML Validator Pro has superior customization features so you can configure the validation to your liking. You can even add your own validator messages, recognize your own HTML elements and attributes, and much more. Try CSS HTML Validator Pro for Windows free for 200 validations or 30 days, whichever comes first. A FREE limited version of htmlval for Mac and Linux is also available.

4 Ratings

Starting Price: $60 (one time)

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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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Chameleon

Chameleon is the deepest digital adoption platform for product success, empowering SaaS teams to build no-code, self-service user onboarding, feature adoption, and feedback collection. • PMs, PMMs, and CSMs can build, manage and improve product experiences for your web application without writing code. • Using Chameleon you can show new users key functionalities, highlight product changes, improve feature discoverability, and reduce confusion and support requests. • Deploy NPS, CSAT, CES and custom surveys to users, triggered at the right time and to the right audience. • Add self-serve help and user onboarding launchers to guide users without interrupting their workflow. • Chameleon automatically collects the data on tour performance that can be used to optimize tours. • Variations can be shown to different users and all tours can be A/B tested. • Connect to one of the hundreds of integrations Chameleon supports

8 Ratings

Starting Price: $279 per month

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Hevo

Hevo Data

Hevo Data is a no-code, bi-directional data pipeline platform specially built for modern ETL, ELT, and Reverse ETL Needs. It helps data teams streamline and automate org-wide data flows that result in a saving of ~10 hours of engineering time/week and 10x faster reporting, analytics, and decision making. The platform supports 100+ ready-to-use integrations across Databases, SaaS Applications, Cloud Storage, SDKs, and Streaming Services. Over 500 data-driven companies spread across 35+ countries trust Hevo for their data integration needs. Try Hevo today and get your fully managed data pipelines up and running in just a few minutes.

3 Ratings

Starting Price: $249/month

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Hackrate

Check us out at hckrt.com! 🔐 Hackrate Ethical Hacking Platform is a crowdsourced security testing platform that connects businesses with ethical hackers to find and fix security vulnerabilities. Hackrate's platform is designed to be easy to use for both businesses and ethical hackers. Hackrate's platform is a valuable tool for businesses of all sizes. By crowdsourcing their security testing, businesses can gain access to a large pool of experienced ethical hackers who can help them find and fix security vulnerabilities quickly and efficiently. If you are looking for a way to improve the security of your business's systems and applications, then Hackrate Ethical Hacking Platform is a great option to consider.

2 Ratings

Starting Price: €250/month

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Peekdata

Consume data from any database, organize it into consistent metrics, and use it with every app. Build your Data and Reporting APIs faster with automated SQL generation, query optimization, access control, consistent metrics definitions, and API design. It takes only days to wrap any data source with a single reference Data API and simplify access to reporting and analytics data across your teams. Make it easy for data engineers and application developers to access the data from any source in a streamlined manner. - The single schema-less Data API endpoint - Review and configure metrics and dimensions in one place via UI - Data model visualization to make faster decisions - Data Export management scheduling AP Ready-to-use Report Builder and JavaScript components for charting libraries (Highcharts, BizCharts, Chart.js, etc.) makes it easy to embed data-rich functionality into your products. And you will not have to make custom report queries anymore!

2 Ratings

Starting Price: $349 per month

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Appenate

Reduce Paper-Based Work With Our Drag-n-Drop App Builder. Create Data-Driven Apps That Empower Your Business. Mobile & Desktop. No Coding Required. A no-code platform for creating data-driven apps to replace paper forms across all industries. Use our versatile drag-n-drop software to schedule, dispatch, track & manage jobs. “Appenate allowed our company to go paperless in the field & gave us the ability to move towards other paperless operations. Within a month we had a department of 12 technicians & one dispatcher using Appenate daily” – Junetta, Commercial Service Department – Total Group Create quotes, checklists or reports & easily integrate with existing systems. Enforce accountability, cost-saving & efficiency via our dashboard overview. FREE trial offered to test GPS, barcode scanning, signature & drawing, media & attachment upload, formulas, push notifications, white label & offline capabilities. Create online forms and apps in under 5 minutes.

2 Ratings

Starting Price: $11.90/month/user

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Aware IM

AwareSoft Pty Ltd

AwareIM is a low code web application builder, designed for rapid, robust and scalable development. It comes pre-packed with most, if not all, of what you’ll need to build enterprise-level business management applications, uses a non-procedural, rule-based approach, which makes development as simple and intuitive as it gets, is based on Java, so you get to “build once, run anywhere”, and is fully customizable, so nothing will hinder your creativity. AwareIM innately takes care of the full stack and includes all key components of a full fledged app, so you get to begin as close as possible to the finish line, right from the start. AwareIM uses a non-procedural, rule-based approach to development, which means, simply put, that you only need to specify what you want, the how is taken care of automatically. Development doesn’t get much simpler than that. AwareIM consists of Java code under the hood, so it will run in exactly the same way on any popular operating system.

1 Rating

Starting Price: $150/month

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DoveRunner

DoveRunner - the AI-powered next-gen AppShielding solution crafted to enable organizations to prevent mobile app attacks and deal with sophisticated threat landscapes with perfect precision in just 3 simple steps. DoveRunner brings the benefits of DevSecOps to Mobile Apps with a ZERO-FRICTION, ZERO-CODING Approach. Get the best of Defense-in-depth security and regulatory compliance in a single solution for mobile apps DoveRunner is trusted by industries like Fintech/Banking, O2O, Movie Apps, Gaming, Healthcare, Public apps, E-commerce, and others globally.

1 Rating

Starting Price: $129/app/month

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Qorus Integration Engine

Qore Technologies

Qorus Integration Engine® is the only No-Code for Coders solution, enabling software engineers to rapidly create and maintain enterprise apps through a combination of building block construction, configuration, and custom coding in a highly flexible, open-source platform. Qorus includes AI automation, fault tolerant workflows, native Python - Java language integration, and a data provider API that automatically introspects and interfaces with any system independently of the underlying API or integration technology. Qorus is available as a paid enterprise edition, and a FREE, fully functional community edition.

1 Rating

Starting Price: $250 per month

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Zuar Runner

Zuar, Inc.

Utilizing the data that's spread across your organization shouldn't be so difficult! With Zuar Runner you can automate the flow of data from hundreds of potential sources into a single destination. Collect, transform, model, warehouse, report, monitor and distribute: it's all managed by Zuar Runner. Pull data from Amazon/AWS products, Google products, Microsoft products, Avionte, Backblaze, BioTrackTHC, Box, Centro, Citrix, Coupa, DigitalOcean, Dropbox, CSV, Eventbrite, Facebook Ads, FTP, Firebase, Fullstory, GitHub, Hadoop, Hubic, Hubspot, IMAP, Jenzabar, Jira, JSON, Koofr, LeafLogix, Mailchimp, MariaDB, Marketo, MEGA, Metrc, OneDrive, MongoDB, MySQL, Netsuite, OpenDrive, Oracle, Paycom, pCloud, Pipedrive, PostgreSQL, put.io, Quickbooks, RingCentral, Salesforce, Seafile, Shopify, Skybox, Snowflake, Sugar CRM, SugarSync, Tableau, Tamarac, Tardigrade, Treez, Wurk, XML Tables, Yandex Disk, Zendesk, Zoho, and more!

1 Rating

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APIWORX

APIWORX, LLC helps eCommerce businesses scale faster automating their back-office systems and processes. Our Integration Platform as a Service (IPAAS) is specifically designed for the unique needs of eCommerce businesses. Our platform automates complex with: 1. eCommerce platforms like Shopify, BigCommerce and WooCommerce and more 2. Marketplaces like Amazon, eBay, Etsy, and more 3. 3PLs like Shipbob, Amazon FBA and other third party logistics providers 4. Business Networks like SPS Commerce, Coupa, Ariba and EDI 5. Point of Sale systems like Square POS, Lightspeed 6. Accounting platforms like Sage Intacct, Brightpearl, XERO, Netsuite and Quickbooks 7. Inventory Management / Order Processing platforms like Brightpearl, SKUVAULT SKUVAULT and Shiphero. Our service is 100% managed and "done for you" with no software to maintain or buy. Operates on all major platforms.

1 Rating

Starting Price: $299/month

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Convertigo

Convertigo SA

Convertigo is the first open source Enterprise Grade Low Code / No Code platform to accelerate your Enterprise digitalization for reasonable costs. Dream an App, Make an App! Imagine you can make any app you want. From simple handy workforce apps to Enterprise grade multi-device transactional applications helping companies to accelerate their business. Get live sooner! Convertigo Low Code platform application development makes your Enterprise to get business success more efficient, delivering complete applications, similar to Pro Code but faster and cheaper. Reduce by 90% time and money needed to build and deploy business applications running on all type of devices such as smartphones, tablets and PCs whatever operating systems they are running on. Enjoy Open Source! This means that you can use Convertigo Community Edition Free of Charge. Open Source also solves the Vendor Lock-in paradigm by allowing you to quit the platform and still enjoy running your apps

Starting Price: $15 per month / user

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VisiRule

Logic Programming Associates Ltd

VisiRule is an easy-to-use Low-Code No-Code tool which lets subject matter experts such as lawyers, tax advisors, doctors, medical professionals, engineers etc rapidly define and deliver intelligent advice and troubleshooting guides using decision tree flowcharts. Once built, these charts can be deployed in a single click as self-service web applications, or client side HTML pages or as Intelligent ChatBots. VisiRule converts specialist expertise into smart AI solutions to triage complex problems, make recommendations, enforce actions and can generate bespoke documents. Use VisiRule to quickly build systems to handle those common but non-trivial enquiries and computations that staff have to spend time on, and customers need solving, in a cost-effective way. This frees staff to focus on the more difficult tasks, and empowers clients with instant access to high-quality advice anywhere, anytime.

Starting Price: $995

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Scout Monitoring

Scout Monitoring is Application Performance Monitoring (APM) that finds what you can't see in charts. Scout APM is application performance monitoring that streamlines troubleshooting by helping developers find and fix performance issues before customers ever see them. With real-time alerting, a developer-centric UI, and tracing logic that ties bottlenecks directly to source code, Scout APM helps you spend less time debugging and more time building a great product. Quickly identify, prioritize, and resolve performance problems – memory bloat, N+1 queries, slow database queries, and more – with an agent that instruments the dependencies you need at a fraction of the overhead. Scout APM is built for developers, by developers, and monitors Ruby, PHP, Python, Node.js, and Elixir applications.

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Conclusion

Eller

Conclusion brings corporate process management to a new level. Powerful text editing and collaboration tools, slick interface design, customizable workflows and much more in a single box. What makes Conclusion unique, is a seamless automation of all process steps - from requirements collection to project planning, tracking and task management - in one single solution. No integration between several tools, no need to purchase additional instruments. There is a significant research behind Conclusion. The interface, data model, workflow engine are optimized to the way people work today in modern companies. Each customer has unique approach and culture, so we provide several predefined methodologies, that can be further extended by the customer.

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CAST Highlight

CAST

CAST Highlight rapidly analyzes entire software portfolios to reveal the true health, risks, and modernization readiness of every application. It automatically identifies cloud blockers, technical debt hotspots, code inefficiencies, IP exposures, and open-source vulnerabilities across all languages and frameworks. With fast, fact-based insights, teams can prioritize modernization routes, allocate resources intelligently, and resolve issues before they escalate. The platform provides clear visibility into carbon footprint impact, resiliency risks, and reuse potential to support both engineering and sustainability goals. Organizations use CAST Highlight to accelerate cloud migrations, reduce tech debt, strengthen security posture, and validate due diligence assessments. It turns software portfolios into actionable dashboards that guide smarter transformation decisions at scale.

Starting Price: $10K per year

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3SL Cradle

3SL

Manage needs, epics, user stories, features and the product backlog through a series of sprints, each using your choice of requirements management, model based systems engineering (MBSE) and test management with your preferred level of change tracking, configuration management and formal change control. Cradle® is our requirements management and systems engineering software tool that integrates your entire project lifecycle in one, massively scalable, integrated, multi-user product. Whether your projects are small and local, large and distributed, or anywhere in between, Cradle can solve all your agile, requirements management, model driven development, defect tracking and test management needs in one place. With its unrivaled feature set, incredible flexibility, simple configuration and low cost, Cradle is the ideal choice if you are new to agile methods, requirements management or systems engineering.

Starting Price: $449.00/one-time/user

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Docsie

Docsie is an award-winning digital documentation and knowledge management platform based in Ontario, Canada. You can access Docsie through a SaaS web application to create & edit documentation from any location. Then, you can publish content to a dynamic knowledge portal that users can access whenever they need information! Docsie offers powerful business-grade features to write & manage product documentation: - Docsie Pilot onboarding - Custom portal design & optional training for paid plans - Internal & external portal for employees & end-users - Workspaces - Knowledge base analytics & user feedback collection - Free custom domain - Markdown import & export - WYSIWYG Editor - iFrame embed - SwaggerAPI import - Snippet, fragment, document & topic templates - Help center & in-app help interface - Guided tour builder - Version & language management - Webhooks - AI translation & content generation - Project management - RBAC/JWT/SSO for security

Starting Price: $39 per month (annual)

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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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Matrix Requirements

For companies looking to accelerate development of their innovative medical device technologies, our Application Lifecycle Management and Quality Management Systems (eQMS) are easy-to-use, flexible, all-in-one software solutions designed to facilitate collaboration of employees on design control, and quality management to streamline medical device design. Innovate faster with a flexible item-based approach to documentation designed to control even the most complex SxMD (Software as/in a Medical Device) product design. Enhance quality management and ensure compliance with full traceability from design input to output with a purpose-built software platform that enables a collaborative quality culture across all teams. Ensure frictionless alignment between platforms with native integrations for Jira, GitLab, GitHub, Azure DevOps and more.

Starting Price: $500 per month

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Bridge

Bridge is a unified Learning & Employee Development platform that combines LMS, career pathing, skills, and performance management in one easy solution. Deliver engaging training with personalized journeys, two authoring tools, advanced media, analytics, and 150+ included, skills-tagged courses. Bridge goes beyond learning with career pathing, skill management, and AI-powered overviews that spot gaps and build personalized development plans. Tools like manager 1:1s and performance conversations connect growth to everyday work. Trusted by 1,000+ organizations, Bridge helps companies streamline systems, save time, and develop their people.

Starting Price: $12,500/year

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devZing

Bug Tracking, Test Case Management and Version Control devZing provides a hosted, managed environment with the tools you need for your project team to get things done. We make sure the servers are running fast, are backed up and have the most current versions. You create great software. Bugzilla Hosting Bugzilla is the classic bug tracker. Have an existing Bugzilla installation? We'll import it. Subversion Hosting Do you have multiple developers writing code? Then you need Subversion. Create as many repositories as you need and access them via Subversion clients such as TortoiseSVN. MantisBT Hosting A great alternative bug tracker. Can even be used as a ticketing system. Testopia Hosting Testopia is a sophisticated addition to Bugzilla so you get integrated test case management and defect tracking in one package. Trac Hosting Trac is a fantastic combination of defect tracker, Subversion browser, Wiki and project management webapp.

Starting Price: $15.00/month

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CAD6engine

Malz++Kassner GmbH

Use CAD6engine as your programming library (SDK) to output technical and financial data, raster images, process and text information, SVG graphics, or the content of DWG and DXF files to high-quality PDF files (of course without using the limited Windows printer interface or GDI). Create high-resolution PDFs with Unicode texts, layers, transparencies, and support for various colors models (RGB/HSB, CMYK, gray, CIELab). Convert SVG to DXF/DWG files and vice versa. Combine various graphical files into one document, add objects and text, and print it. With full control over all parameters. Integrated into your program, running completely in the background, or optionally presenting a full-fledged graphical user interface. CAD6engine is addressed to C++ developers with basic knowledge of C++ and Win32/x64 topics. CAD6engine may also be used with other compilers that support the supplied C++ compatible dynamic link library MKCAD6engine.dll and the corresponding MKCAD6engine.lib.

Starting Price: 195 EUR per 10 users

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Golioth

Connect and secure devices, send sensor data to the web, update firmware over the air, and scale your fleet with our instant IoT cloud. Select hardware and connectivity that meets your needs from your preferred vendor. Use the open source Golioth Device SDK to integrate with your firmware securely. Once connected you can instantly monitor, manage, and update your devices from the Golioth console. We’re a group of industry-leading hardware, firmware, and cloud engineers. We understand the struggle to connect “sand” to the internet, so we built a better way to do just that. We’re built for the embedded developer workflow. Use the tools you’re already familiar with to build robust and reliable devices, faster. Choose from hundreds of hardware options and a variety of connectivity types, protocols, and multiple embedded RTOS providers. Golioth provides a single control plane for all your devices, whether you’re exploring an idea, or improving an existing project.

Starting Price: $0

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OnScreen

OnScreen is the leading Digital Adoption Platform (DAP) for SAP or Any browser-based enterprise application. Boost process efficiency and user productivity with just in time OnScreen guidance. Optimize SAP on-boarding, Increase Employee Productivity and Reduce Training costs by as much as 50%. Transform business users into super users with in application walkthroughs for SAP ECC, S4HANA or any Enterprise Application. OnScreen is Highly Rated for its Simplicity and Usability. Creating and managing content can be done in minutes by any subject matter expert or trainer. OnScreen Guides Users with live overlays directly in any web application like SAP, Salesforce, SuccessFactors, Ariba, Workday, Dynamics, Oracle and more. OnScreen has a very short ramp up time and requires no server installation or maintenance. OnScreen is for Enterprise organizations that want an Agile Digital Adoption Platform with flexible licensing that scales to ensure a very high ROI.

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Ventuno

Ventuno Technologies

Launch and grow your video streaming service using Ventuno, a SaaS OTT platform. Quickly launch your websites and apps using our customizable templates. Platforms supported - Your branded website, mobile apps (Android, iOS), and OTT apps (Roku, Apple TV, Android TV, Amazon Fire TV, LG TV, and Samsung TV). You get all the features needed to manage your OTT service - IT infrastructure, video CMS, encoder, video player, ad-server, payment gateway integration, servers, CDN, and analytics. Monetize your service in all possible ways - ads, subscriptions, and pay-per-view. The best part? You get a single dashboard to manage your entire video business - right from uploading, distributing, monetizing, and analyzing your videos and live streams. Have any questions? Contact us today!

Starting Price: $299

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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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Miro

Keep your team's minds in sync with Miro (formerly RealtimeBoard and AWW app). A virtual whiteboard and remote collaboration tool, Miro helps cross-functional teams work more efficiently together to build great things. The platform allows teams to ideate, visualize, and share ideas without any boundaries. It comes with over 200 pre-made templates for capturing and visualizing ideas, collaboration tools such as comments, chat, screen sharing, and video chat, and integrations with popular business tools. Miro AI. You and your team, supercharged. You're here to create the next big thing and we're here to help. Unlock the power of your ideas with Miro AI – your new launchpad for creativity, collaboration, and productivity.

121 Ratings

Starting Price: $8 per month

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monday.com

Simplify the way your team works with monday.com, a cloud-based project management platform that provides customizable no-code solutions for a wide range of use-cases such as marketing, sales, operations, IT, HR, and more. monday.com allows businesses of all sizes to work in an efficient environment where every team member can assign tasks, automate repetitive work, collaborate in real-time, and share files. With this platform, you can manage everything from simple to complex projects and ensure seamless communication between team members. Customizable dashboards give quick high-level overviews of every project, visual boards help organize tasks, and thanks to integrations with third-party applications such as Outlook, Zoom, Gmail, Google Drive, Dropbox, Excel you can continue working with all your existing tools within the platform. monday.com also offers dedicated solutions, such as monday dev and monday sales CRM, designed to answer the needs of specific industries and verticals.

97 Ratings

Starting Price: $39/month for 5 users

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Best Application Development Software in the UK - Page 3

Compare the Top Application Development Software in the UK as of December 2025 - Page 3

CSS HTML Validator

Alpha Anywhere

Chameleon

Hevo

Hackrate

Peekdata

Appenate

Aware IM

DoveRunner

Qorus Integration Engine

Zuar Runner

APIWORX

Convertigo

VisiRule

Scout Monitoring

Conclusion

CAST Highlight

3SL Cradle

Docsie

DHTMLX

Matrix Requirements

Bridge

devZing

CAD6engine

Golioth

OnScreen

Ventuno

Intellimas

Miro

monday.com

Best Application Development Software in the UK - Page 3

Compare the Top Application Development Software in the UK as of December 2025 - Page 3

CSS HTML Validator

Alpha Anywhere

Chameleon

Hevo

Hackrate

Peekdata

Appenate

Aware IM

DoveRunner

Qorus Integration Engine

Zuar Runner

APIWORX

Convertigo

VisiRule

Scout Monitoring

Conclusion

CAST Highlight

3SL Cradle

Docsie

DHTMLX

Matrix Requirements

Bridge

devZing

CAD6engine

Golioth

OnScreen

Ventuno

Intellimas

Miro

monday.com

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