Page 72 | Best Free Application Development Software of 2026

VisualDesigner

Tien Thinh Vu

The application helps you make diagrams, UI mockup, flow charts, UML, and floor plan quickly. With VisualDesigner users could drag the right mouse on a current shape to create a new attached object with the line, double-click on the canvas to create a new text box item, switch the current select object to another shape type, and change the selected items display order, auto Align with another object when resize or move, and select items then save them to favorites list to reuse later.

Starting Price: Free

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BuilderX

BuilderX is a cloud-based design tool that lets you design screens for your app and codes them in React & React Native for you. Be it a developer or someone who you want to share your progress with, the projects can be shared by a simple link. BuilderX tries to automatically convert Absolute to Flex, you can specifically define Flex Layouts in BuilderX. Not every developer is a fan of the folder structure we generate. So don't compromise, just export the parts that you like as components. BuilderX has a range of components to make the design process easier. Create custom UI and use them across the project. Use a list of open source icons for your need, right from the tool. BuilderX aims to bring designers and developers together and caters to them both in relevant contexts. BuilderX is a design tool that aims to facilitate developers & designers to design apps in it. This means that BuilderX allows users to design screens for their apps but does not deliver a fully-functional app.

Starting Price: $15 per month

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PromptIDE

SpaceXAI

The xAI PromptIDE is an integrated development environment for prompt engineering and interpretability research. It accelerates prompt engineering through an SDK that allows implementing complex prompting techniques and rich analytics that visualize the network's outputs. We use it heavily in our continuous development of Grok. We developed the PromptIDE to give transparent access to Grok-1, the model that powers Grok, to engineers and researchers in the community. The IDE is designed to empower users and help them explore the capabilities of our large language models (LLMs) at pace. At the heart of the IDE is a Python code editor that - combined with a new SDK - allows implementing complex prompting techniques. While executing prompts in the IDE, users see helpful analytics such as the precise tokenization, sampling probabilities, alternative tokens, and aggregated attention masks. The IDE also offers quality of life features. It automatically saves all prompts.

Starting Price: Free

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User Evaluation

User Evaluation is an AI-driven platform that acts as an innovative solution for customer understanding. It’s designed to help businesses uncover valuable user insights with various AI tools. The automated process of data analysis can extract key information from customer conversations and turn them into AI reports with visual graphics. It also features an intelligent AI chat that aids in data understanding and brainstorming ideas. Never lose track of your findings with AI tags and notes!

Starting Price: $39 per month

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PHP Secure

PHP Secure is a FREE code scanner that analyzes your PHP code for critical security vulnerabilities. Free online scanner: - Quickly and qualitatively finds web app vulnerabilities - Gives explicit reports and recommendations to fix vulnerabilities - Easy to use and requires no specialized knowledge - Reduces risk, saves budget, and boosts productivity PHP Secure Scanner is suitable for analyzing sites on Php, framework Laravel, and CMS Wordpress, Drupal and Joomla. PHP Secure detects the most common and dangerous types: -SQL injection vulnerabilities -Command Injection -Cross-Site Scripting (XSS) Vulnerabilities -PHP Serialize Injections -Remote Code Executions -Double Escaping -Directory Traversal -Regular Expression Denial of Service (ReDos)

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Hookdeck

Receive webhooks reliably, even after server outages. Free features like automatic retries and rate limiting keep your system humming – while developer-friendly tooling and an intuitive dashboard keep the whole team happy. Hookdeck's main features include: - Filter out the Noise: Disregard events based on their contents and receive only the requests you care about. - Transform your Data: Take charge of your payloads by trimming, formatting, converting, or appending data. - Stay Alert: Customize your notification rules to keep you a step ahead of any issues.

Starting Price: $39/month

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Amazon CodeCatalyst

Amazon

Quickly build and deliver apps at scale on AWS. Amazon CodeCatalyst is a unified software development service for development teams to quickly build, deliver and scale applications on AWS while adhearing to organization-specific best practices. Developers can automate development tasks and innovate faster with generative AI capabilities, and spend less time setting up project tools, managing CI/CD pipeliness, provisioning and configuring various developement environments or coordinating with team members. IT Leaders can codify organizational best practices at scale via application blueprints to ensure compliance across teams with scale.

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Ditto

Ditto is the only mobile database with built-in edge device connectivity and resiliency, enabling apps to synchronize without relying on a central server or constant cloud connectivity. Through the use of CRDTs and P2P mesh replication, Ditto's technology enables you to build collaborative, resilient applications where data is always available and up-to-date for every user, and can even be synced in completely offline situations. This allows you to keep mission-critical systems online when it matters most. Devices running Ditto apps can discover and communicate with each other directly, forming an ad-hoc mesh network rather than routing everything through a cloud server. The platform automatically handles the complexity of discovery and connectivity using both online and offline channels – Bluetooth, peer-to-peer Wi-Fi, local LAN, WiFi, Cellular – to find nearby devices and sync data changes in real-time.

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Jetpack Compose

Google

Jetpack Compose is Android’s recommended modern toolkit for building native UI. It simplifies and accelerates UI development on Android. Quickly bring your app to life with less code, powerful tools, and intuitive Kotlin APIs.

Starting Price: Free

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DeepSCA

Deepbits Technology

DeepSCA is a free online AI-powered software composition analysis service for software risk management. It supports various inputs such as binary, APK, JavaScript, Python, docker image, etc., and no source code is required.

Starting Price: $0

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mern.ai

Mern.AI: Build Stunning Web Apps with AI Speed & Control Skip boilerplate, focus on brilliance. Mern.AI's AI assistant generates clean MERN stack code while you design, refine, and deploy your masterpiece. Boost your productivity, slash development time, and own your code. Features: AI Chat: Describe your app, watch code emerge. Built-in IDE: Edit, collaborate, code with ease. Full-stack Templates: Jumpstart your project instantly. Real-time Preview: See your app evolve as you code. One-click Deployment: Launch your app in minutes. Downloadable Source Code: Own your creation, deploy anywhere.

Starting Price: $29 per month

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Vessel

Our developer-first platform is flexible enough to power all of your customer-facing integrations. Vessel regularly handles terabytes of data and billions of API calls. Vessel is proud to be SOC2 compliant, demonstrating our commitment to maintaining the highest level of security and trust in our operations. Data is encrypted in transit and at rest using industry-standard encryption protocols.

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Amazon Corretto

Amazon

No-cost, multiplatform, production-ready distribution of OpenJDK. Amazon Corretto is a no-cost, multiplatform, production-ready distribution of the Open Java Development Kit (OpenJDK). Corretto comes with long-term support that will include performance enhancements and security fixes. Amazon runs Corretto internally on thousands of production services and Corretto is certified as compatible with the Java SE standard. With Corretto, you can develop and run Java applications on popular operating systems, including Linux, Windows, and macOS. Amazon Corretto comes with no-cost long-term support from Amazon, so you can upgrade versions only when you need to. Amazon is committed to Corretto, running it internally on thousands of production services. Amazon Corretto is certified to meet the Java SE standard and can be used as a drop-in replacement for many Java SE distributions. Amazon provides quarterly updates that include performance enhancements and security fixes.

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Beezr

Beezr is a no-code cloud-based app development application platform. It enables business users to organize their data and automate business processes with workflows. The platform consists of visual builder tools that enable citizen developers to build highly complex and integrable applications. Beezr no-code platform aims to: - Reduce manual workload by automating business workflows. - Manage and store data within a unified platform. - Set user-defined rules and actions to control access and visibility of records. - keep up with business changing requirements and processes by reducing development time. - Send notifications upon defined actions and update records in real-time. - Convert spreadsheets into a business application in 4 steps using the Beezr Sheet to App tool.

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Mockey

Free product mockup generator with 1000+ templates. Premium & free Mockup generator for your next big idea. Upload your designs in PNG or JPG format. Use transparent images for professional mockup images. Use the mockup editor to place designs on the photos and customize mockups as per your requirements. Download free professional mockups for social media, ads, ecommerce, or your project without a watermark. There’s no limit on free downloads. Mock-up templates are ideal to showcase your design directly on the appropriate products. Drag & adjust your designs to generate stunning results. Create stunning product mockups easily and online for your print-on-demand business.

Starting Price: Free

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Dopt

Dopt is the first product adoption platform built for product development teams, enabling everyone to work together to ship better experiences across the entire user journey: initial setup, onboarding, feature adoption, engagement, announcements, and more. 🔀 A visual flow builder lets the whole team map out targeting, steps, content, and logic to create cohesive in-product user flows. 🛠️ SDKs and APIs make it easy to develop flows in your app quickly. 🎛️ Use Dopt’s prebuilt, customizable React components like checklists, tours, modals, and cards that offer best practices out of the box; or use Dopt headlessly and build with your own. 📊 Built-in analytics give you visibility into your users 🔌 Native integrations with your analytics and data stack 📈 A scalable and secure platform simplifies the team’s workflow and helps you iterate more by making it easy to deploy, migrate, and restore flow versions and lets you update content and logic without code pushes

Starting Price: $0

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Asinaria

Asinaria lets you smoothly bring your ClickUp, Jira, Asana and Jotform data into Power BI. It’s perfect for teams who want to see their project data in cool charts and make smart decisions without hassle. Asinaria will generate a link for easy importing in Power BI. All data is available and no extra formatting is needed.

Starting Price: $30/month

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Azure Test Plans

Microsoft

Plan, execute, and track scripted tests with actionable defects and end-to-end traceability. Assess quality throughout the development lifecycle by testing your desktop or web applications. Design and execute tests simultaneously to maximize quality in modern software development processes using exploratory test sessions. Capture rich scenario data as you execute tests to make discovered defects actionable. Take advantage of end-to-end traceability and quality for your stories and features. Test your application by executing tests across desktop or web apps.

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ApyHub

The ApyHub Marketplace is a one-stop platform where developers can discover, integrate, and monetize APIs effortlessly. Designed to eliminate the hassle of building and managing essential services, ApyHub provides a curated catalog of high-quality APIs, covering a wide range of use cases. ApyHub offers ready-to-use APIs across multiple categories, allowing developers to streamline their workflows and focus on real innovation.

Starting Price: $0

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Wisej.NET

Ice Tea Group

Wisej.NET provides a platform and set of tools designed to ease the burden of developing, testing, deploying, and maintaining complex AI-powered business software. It bridges the gap between traditional WinForms-style desktop applications and the web by empowering developers to leverage their existing .NET and C# or VB.NET) skills. Developers are able to use the tools they are familiar with, like a pixel-perfect design surface and drag-and-drop controls with the languages they are comfortable with (C# or VB.NET) to build real-time web applications without having to learn HTML, CSS, or JavaScript. They can stay in their favorite IDE like Visual Studio to take advantage of features like IntelliSense, integrated debugging, design surfaces and source control integration. Front-end developers can leverage their knowledge of web technologies to augment applications and seamlessly integrate third-party packages like HTML5 charting libraries and ASP.NET controls.

Starting Price: $990

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Captain

RWX

Captain is an open source CLI that can detect and quarantine flaky tests, automatically retry failed tests, partition files for parallel execution, and more. It's compatible with 16 testing frameworks. Captain tracks the time each test takes to run and partitions your test suite into balanced partitions to minimize test suite runtime in CI. Captain determines and reports on which tests in your test suites are flaky so that you can easily resolve issues with flakiness. Use Captain now with your existing test framework. Captain works with over 15 different test frameworks with more to follow. Captain retries only the tests that fail so that you spend less time waiting for retries to complete. Combined with flakiness detection, Captain can be configured to retry flaky tests more aggressively than new failures. Captain's quarantining allows you to continue running tests that are known to be flaky or failing while preventing them from failing your builds.

Starting Price: $10 per million test results

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CodeArts

Huawei Cloud

This software development pipeline builds on Huawei's years of R&D best practices at one stop. These practices are secure and trustworthy across the full process and can facilitate efficiency increase and digital transformation. Huawei's many years of R&D practices, cutting-edge R&D concepts, and leading R&D engineering capabilities. More than 10 out-of-the-box sub-services for the full lifecycle of software development. 20 mainstream languages, frameworks, and environments for seamless application migration to the cloud. Builds in R&D security capabilities, over 3000 code check rules, and support for top 10 languages. Full-lifecycle one-stop CodeArts makes development simpler and more efficient with better quality. Provides agile and efficient development collaboration services, document management, knowledge collaboration, online collaboration, and dashboard report customization for software development teams.

Starting Price: $6 per month

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Phlorin

Phlorin.com turn Google Sheets into a powerful data pipeline that pulls API data directly into your spreadsheet. Easily fetch data from multiple APIs. You can runs directly through Google Sheets. It is dynamic and customizable without code.

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Hypertune

Hypertune is the most flexible platform for feature flags, A/B testing, analytics and app configuration. Built with full end-to-end type-safety, Git-style version control and local, synchronous, in-memory flag evaluation. - Define type-safe, custom inputs like the current User, Organization, etc, and use them in feature flag rules to target exactly the users you want. - Create variables like user segments that you can reuse across different feature flags, and instantly debug flags for each user. - A/B tests, percentage-based rollouts, multivariate tests and machine learning loops let you seamlessly rollout, test and optimize new features. - Log analytics events with type-safe, custom payloads, and build flexible funnels and charts in the dashboard to measure the impact of every feature release. - Initialize the SDK with only the feature flags you need and partially evaluate flag logic on the edge for performance and security.

Starting Price: $0

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Symfony

Symfony SAS

Symfony is a set of PHP Components, a Web Application framework, a Philosophy, and a Community — all working together in harmony. The leading PHP framework to create websites and web applications. Built on top of the Symfony Components. A set of decoupled and reusable components on which the best PHP applications are built, such as Drupal, Prestashop, and Laravel. A passionate group of over 600,000 developers from more than 120 countries, all committed to helping PHP surpass the impossible. Embracing and promoting professionalism, best practices, standardization and interoperability of applications.

Starting Price: Free

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Penify

Penify automates the software documentation process for Git repositories. Every time a code modification is merged into "main", Penify uses a Large Language Model to generate documentation for the updated code. This automation covers multiple documentation layers, including InCode Documentation, API Documentation, Architectural Documentation, and PR documentation, each designed to improve different aspects of the development process. By taking over the entire documentation process, Penify tackles the common problem of documentation becoming outdated as the code evolves.

Starting Price: ₹835 per month per repository

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CodeQL

GitHub

Discover vulnerabilities across a codebase with CodeQL, our industry-leading semantic code analysis engine. CodeQL lets you query code as though it were data. Write a query to find all variants of a vulnerability, eradicating it forever. Then share your query to help others do the same. CodeQL is free for research and open source. Run real queries on popular open source codebases using CodeQL for Visual Studio Code. See how powerful it is to discover a bad pattern and then find similar occurrences across the entire codebase. You can create CodeQL databases yourself for any project that's under an OSI-approved open source license. GitHub CodeQL can only be used on codebases that are released under an OSI-approved open source license, to perform academic research, or to generate CodeQL databases for or during automated analysis. Download and add the project’s CodeQL database to VS Code, or create a CodeQL database using the CodeQL CLI.

Starting Price: Free

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Codesphere

Codesphere transforms deployment into a developer-centric self-service experience, reducing time-to-market and costs. The traditional separation between development and operation leads to a "throw it over the wall" mentality. Developers hand off code to ops without understanding how to deploy their code & keep it running. Codesphere takes care of cloud provisioning, allowing for developer-centered workflows. It eliminates the wall by enabling developers to manage their own infrastructure needs end-to-end. Deploy anything from simple frontends to multi-service production landscapes and LLMs, including zero config autoscaling, replicas, and managed services. Codesphere has a 99,9% uptime, making your production ready before your 1st deploy. We work with enterprise teams around the globe to get their software teams to the next level. Codesphere utilizes a rootless zero-trust architecture, limiting exposure to attacks.

Starting Price: $1 per month

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AWS Local Zones

Amazon

Run your low latency applications and meet data residency requirements in more locations. Run edge workloads with on-demand scaling and pay-as-you-go pricing. Build and operate with familiar AWS infrastructure, services, APIs, and tools. AWS Local Zones are a type of infrastructure deployment that places select AWS services closer to your end users and workloads. Run applications that require single-digit millisecond latency or local data processing by bringing AWS infrastructure closer to your end users and business centers. Build and deploy applications close to end users to enable real-time gaming, live streaming, augmented and virtual reality (AR/VR), virtual workstations, and more. Migrate your applications to a nearby AWS Local Zone, while still meeting the low-latency requirements of hybrid deployment. Comply with state and local data residency requirements in sectors such as healthcare, financial services, and government.

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Simulit

Create your own ai companion that collects user feedback in an interview like style and gives you more context as traditional feedback forms to help you make better decisions based on the data collected from the feedback your users provide. Simply add a description, set how your ai companion should behave, which follow-up questions he should ask and how he should sound like. Publish it and easily share it with your audience via link or implement it into your website.

Starting Price: $29.99

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Best Free Application Development Software - Page 72

Compare the Top Free Application Development Software as of September 2026 - Page 72

VisualDesigner

BuilderX

PromptIDE

User Evaluation

PHP Secure

Hookdeck

Amazon CodeCatalyst

Ditto

Jetpack Compose

DeepSCA

mern.ai

Vessel

Amazon Corretto

Beezr

Mockey

Dopt

Asinaria

Azure Test Plans

ApyHub

Wisej.NET

Captain

CodeArts

Phlorin

Hypertune

Symfony

Penify

CodeQL

Codesphere

AWS Local Zones

Simulit

Best Free Application Development Software - Page 72

Compare the Top Free Application Development Software as of September 2026 - Page 72

VisualDesigner

BuilderX

PromptIDE

User Evaluation

PHP Secure

Hookdeck

Amazon CodeCatalyst

Ditto

Jetpack Compose

DeepSCA

mern.ai

Vessel

Amazon Corretto

Beezr

Mockey

Dopt

Asinaria

Azure Test Plans

ApyHub

Wisej.NET

Captain

CodeArts

Phlorin

Hypertune

Symfony

Penify

CodeQL

Codesphere

AWS Local Zones

Simulit

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