Best Free Application Development Software - Page 23
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Compare the Top Free Application Development Software as of May 2026 - Page 23
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1
Switchover
Takso
We help companies in every industry to accelerate their software development processes. Our clearly arranged feature flag solution allows you to switch your features on and off at any time. Use it for User Targeting, A/B Testing, Canary Releases, Experimenting and everything else you can think of.Starting Price: 0,-EUR -
2
Dovetail
Dovetail Research
Dovetail is an AI-native customer intelligence platform that transforms customer conversations, documents, and surveys into actionable insights to drive better product decisions. It automatically analyzes call transcripts, survey responses, support tickets, and feedback to deliver fast, accurate reports that empower teams across product, marketing, sales, and customer experience. With integrations into Slack, Microsoft Teams, and popular tools like Notion and Zapier, Dovetail brings the voice of the customer directly to where teams work. The platform supports recruiting verified consumers and professionals for research, making customer feedback collection efficient and scalable. Trusted by Fortune 500 companies like Amazon, Deloitte, and Atlassian, Dovetail helps build a culture of customer-centricity through continuous insight sharing. Its AI-powered features reduce manual workload and accelerate understanding of user needs.Starting Price: $29/user/month -
3
QADeputy
QADeputy
Test Smarter With QADeputy. Efficiently manage your test cases, test suites, test runs, and reporting. Integrate with your favorite automation and bug tracking tools. Automate stakeholder communication. Customize to fit your unique testing needs. Test Cases. Centralize all your test cases under one complete test case management system. Easily import via our CSV/Excel import utility. Feature. Test Suites. Organize your test suites/plans so your entire team has the confidence that they are testing the latest and greatest features. Test Runs. Streamline test runs to allow test engineers to focus on what matters most - testing. Integrations. Use out-of-the-box, easy to configure integrations for automation tools, communication, and bug tracking. Requirements Define your requirements, report on requirements coverage and keep your team in-sync while testing. Customizations. Customize fields, statuses, reusable snippets, configurations, tags, and more to save time while testingStarting Price: $18 per user, per month -
4
MarkUp
Ceros
Visual feedback made easy. MarkUp lets you collect feedback directly on your live website or any image. MarkUp is the leading visual commenting platform for images and live websites. It’s the perfect companion in your creative process to make your life easier. Contextual feedback. Cut through the noise with immediate, visual feedback. Go from design to build to publish without losing your mind in the process. We’ll save you time. You’ll save the day. MarkUp takes the pain out of testing your website on phones and tablets. Seamlessly switch between device types to make sure there are no surprises. Invite as many collaborators as you’d like. They can join as a guest (no signup required) and can view, create, and resolve comments. Best part…it’s free. Whether you’re designing a project from ideation, or putting the finishing touches on the build, MarkUp is the perfect tool to keep your team together.Starting Price: $25 per month (paid annually) -
5
Container Registry
8gears
8gears Container Registry is a Harbor-based container registry as a service offered and operated by the project's maintainer and contributors. For organizations, and software vendors looking for ways to distribute software as container images.Starting Price: $249 per month -
6
REST Assured
REST Assured
Testing and validating REST services in Java is harder than in dynamic languages such as Ruby and Groovy. REST Assured brings the simplicity of using these languages into the Java domain.Starting Price: Free -
7
DeployHQ
Krystal
Build and deploy code straight from your repos. A service packed with features to help you automate and manage the continuous deployment of your websites. DeployHQ handles all the hard work getting files from your repositories to your servers. This is how it works and the secrets behind the magic. It’s really as easy as 1, 2, 3. Deploy with zero downtime for your website or app. We’ll upload all your changes and then make them live at the same time to avoid any issues while files are copied. Zero downtime deployments (or atomic deployments as they're sometimes known) allow changes to be prepared on the server and made live simultaneously. Historically, changes are all uploaded into a live directory which means some times are updated before others which can lead to inconsistencies. With zero downtime deployments, all changes are prepared in a staging directory and then moved into place once all changes are ready.Starting Price: $10.50 per month -
8
Loader.io
SendGrid
Loader.io is a FREE load testing service that allows you to stress test your web-apps & apis with thousands of concurrent connections. Use the web-interface or API to register your app for testing. We'll simulate connections to your application for the duration. Monitor the test in real-time, then share the results with your team.Starting Price: $99.95 per month -
9
Datanews
Datanews
Our easy to use API provides flawless access to news information, gathered from thousands of sources scattered all over the web. We are always here for you. Message us if you experience any problems or know ways to make Datanews better. Search news articles by keywords, date ranges, sources, languages, topics and countries. We provide client libraries which give full access to the API in several lines of code. No matter what you're working on, our API is very flexible and could be used for many different purposes. News monitoring lets you timely find news you are interested in and react appropriately. You can collect up-to-date news information, and use it to extract business insights, or plainly apply for training of AI models. Analysing news can provide invaluable information for making financial, market and business decisions. We provide APIs to extract and analyse entities, keywords and general sentiment of the news article.Starting Price: $34.99 per month -
10
Faros AI
Faros AI
Faros AI connects the dots between your engineering data sources – ticketing, source control, CI/CD, and more – giving unprecedented visibility and insight into your engineering processes. Be amazed at what you can achieve with Faros AI. With Faros AI, engineering leaders can scale their operations in a more data-informed way — using data to identify bottlenecks, measure progress towards organizational goals, better support teams with the right resources, and accurately assess the impact of interventions over time. DORA Metrics come standard in Faros AI, and the platform is extensible to allow organizations to build their own custom dashboards and metrics so they can get deep insights into their engineering operations and take intelligent action in a data-driven manner. Leading organizations including Box, Coursera, GoFundMe, Astronomer, Salesforce, etc. trust Faros AI as their engops platform of choice. -
11
waboxapp
waboxapp
waboxapp is an API for Instant Messaging that allows you to integrate your IM accounts with your systems and solutions. Integrate IM as you want, easily and securely. You can install it directly from the waboxapp extension for Google Chrome. When the extension is installed you will see the waboxapp icon at the top of your Chrome browser. When the extension is installed you will see the waboxapp icon at the top of your Chrome browser. Configure with your waboxapp API Token and done! You always have control over your Instant Messaging accounts. You can integrate multiple IM accounts. With waboxapp you can integrate all your Instant Messaging accounts with your own systems in no time. We have APPs so you can also integrate IM with your favorite services with just few clicks. With waboxapp it's very easy to integrate IM any way you want. You can send messages through the waboxapp API and with the webhooks you will be notified of any event in real time.Starting Price: $12 per month -
12
Puma Scan
Puma Security
The Puma Scan Professional End User Edition allows developers to run Puma Scan with a Visual Studio extension. This edition includes enhanced features, fewer false positives and support options. The End User license is valid for one year and renewed annually. The Server Edition allows command line scanning and integration with your build server without the overhead of Visual Studio. Each Server license may be used on up to 5 build agents in a single organization. Build Agent Bundles can be purchased in groups of 5. The Azure DevOps Extension adds a Puma Scan build task to your Azure DevOps pipelines. Azure DevOps Standard licenses allow scanning in up to 20 build pipelines. Azure DevOps Unlimited licenses allow unlimited scanning within a single organization.Starting Price: $299 per year -
13
TestMace
TestMace
Test Mace is a modern powerful crossplatform tool for working with an API and creating automated API tests. Create requests and scenarios using variables, authentication, autocomplete feature and syntax highlighting. Build complex scenarios using our convenient and simple UI interface. Perform full regression testing with just one click. Assign a request result to a variable and get access from other nodes. Save authorization tokens, response headers or parts of a response body. Run your scenarios in different environment contexts. Use this to organize development, stage and production environments. Embedded authentication methods will help you to do authentication if you use one of the most popular types. You can use quick share feature to share your request with colleagues. Just press a button to copy a specific node's url. All that you need now is to send this url to your teammate.Starting Price: $4 per month -
14
Ping-API
Ping-API
Use our generator to create a test script in JavaScript or CoffeeScript. Write script to set the request parameters and validate the response. Ping-API will run your test script on global servers in U.S., Japan, Germany and Singapore. Schedule testing to inspect your APIs. We will send the failure test information to you with email, Slack and HipChat. Ping-API allows you to write test script in JavaScript and CoffeeScript to test your APIs. Write script to set request url parameters, headers and body. And write script to validate response headers and body. Script generator. Don't worry about programming. Just set parameter of your API, the generator will give you test script. It is easy! The use case for web developers. Give me a notification when my web is down or the response is unexpected. Ping-API will schedule your tests in every minutes or hours. If the test is failure, we will send the notification to you.Starting Price: $5 per month -
15
Liquibase
Liquibase
One area hasn’t benefited from the DevOps movement as much: The database change process. It’s time to bring CI/CD to the database. Application release technology has come a long way in the past several years. It used to take weeks or even months to release new software. Now that organizations have adopted new workflows and processes, the time it takes to complete a release has been reduced to days and even hours. Database schema migrations are an essential task for every software project. There are several different reasons why updates to the database are required. New features require new attributes in existing tables or entirely new tables. Bug fixes may lead to changes in names or data types in the database. Performance issues that require additional indexes in the database. Even in organizations that have adopted DevOps, manual rework is the norm when it comes to database schema and stored procedure changes.Starting Price: $5000 per year -
16
Vectary
Vectary
Vectary is the most accessible 3D and Augmented Reality design platform. No downloads, all in the browser. Build immersive experiences for the real world. Publish 3D and Augmented Reality content to any website, on all platforms with Vectary Web AR. Transform your imported model with high quality and free materials, environments and lightning setups in Vectary. Enhance your 3D content with access to hundreds of free high quality materials carefully selected to shine in AR. Let Vectary do the heavy lifting of reliability and performance optimization to ensure smooth experience on every device. Web AR automatically bakes physically accurate materials and shadows for extra realism and immersion. Vectary can import 3D files from all major tool-chains in the polygon, CAD modeling and 3D scanning field. Over 60 import formats are included in the free version, with additional CAD package available for specific files from Catia, Solidworks, Pro Engineer etc.Starting Price: $12 per user per month -
17
Gravitee.io
Gravitee.io
Gravitee.io is the easiest to use, most performant and cost-effective Open Source API Platform that helps your organization to secure, publish and analyze your APIs. Use the power of Gravitee.io to manage identities with our OAuth2, OpenID Connect (OIDC) and Financial-grade API (FAPI) certified server. Gravitee.io APIM is a flexible, lightweight and blazing-fast open source API Management solution that helps your organization control finely who, when and how users access your APIs. With strong governance features such as API review and API quality and our market leading API designer, Gravitee.io enables you to design, manage, deploy and monitor your APIs in a secure and governed way. A branded Gravitee.io portal enables your API consumers to fully engage with your business - delivering high quality engagement for your business in the digital age.Starting Price: $2500 per month -
18
Stoplight
Stoplight
Stoplight is an API Design, Development, and Documentation platform. Use Stoplight Platform to enable consistency, reusability, and quality in your API lifecycle, all with an easy, enjoyable developer experience. Here's what you can do with Stoplight Platform: - Design APIs with our easy visual designer, Stoplight Studio - Mock API designs automatically with Stoplight Prism mocking - Collaborate on your designs and invite internal and external users to provide feedback - Develop faster and better APIs - Test and enforce against style guides with Stoplight Spectral - Document both internal and external APIs automatically to create a delightful experience Utilize and integrate design-first workflows to quickly scale up standardized, collaborative, and well-governed API programs.Starting Price: Free -
19
SwaggerHub
SmartBear
SwaggerHub is an integrated API design and documentation platform, built for teams to drive consistency and discipline across the API development workflow. Accelerate your team’s design process without any loss in quality or organizational style consistency with a powerful Editor that’s fully compliant with the latest Swagger (OpenAPI) standards. A Powerful Editor equipped with smart error feedback and syntax auto-completion. Style Validators for ensuring design consistency across multiple APIs. API Mocking to virtualize operations without any code. Domains for storing, reusing and referencing common OAS syntax across multiple APIs. Have your API design and development centralized on a single location, allowing your teams to seamlessly collaborate on new APIs, or discover existing APIs on a centralized platform. Coordinate your entire API lifecycle from a central internal repository, hosted on the cloud.Starting Price: $90 per month -
20
Amazon API Gateway
Amazon
Amazon API Gateway is a fully managed service that makes it easy for developers to create, publish, maintain, monitor, and secure APIs at any scale. APIs act as the "front door" for applications to access data, business logic, or functionality from your backend services. Using API Gateway, you can create RESTful APIs and WebSocket APIs that enable real-time two-way communication applications. API Gateway supports containerized and serverless workloads, as well as web applications. API Gateway handles all the tasks involved in accepting and processing up to hundreds of thousands of concurrent API calls, including traffic management, CORS support, authorization and access control, throttling, monitoring, and API version management. API Gateway has no minimum fees or startup costs. You pay for the API calls you receive and the amount of data transferred out and, with the API Gateway tiered pricing model, you can reduce your cost as your API usage scales.Starting Price: $0.90 -
21
Azure App Service
Microsoft
Quickly build, deploy, and scale web apps and APIs on your terms. Work with .NET, .NET Core, Node.js, Java, Python or PHP, in containers or running on Windows or Linux. Meet rigorous, enterprise-grade performance, security and compliance requirements used a trusted, fully managed platform that handles over 40 billion requests per day. Fully managed platform with built-in infrastructure maintenance, security patching, and scaling. Built-in CI/CD integration and zero-downtime deployments. Rigorous security and compliance, including SOC and PCI, for seamless deployments across public cloud, Azure Government, and on-premises environments. Bring your code or container using the framework language of your choice. Increase developer productivity with tight integration of Visual Studio Code and Visual Studio. Streamline CI/CD with Git, GitHub, GitHub Actions, Atlassian Bitbucket, Azure DevOps, Docker Hub, and Azure Container Registry.Starting Price: $0.013 per hour -
22
PythonAnywhere
PythonAnywhere
Get started for free. Our basic plan gives you access to machines with a full Python environment already installed. You can develop and host your website or any other code directly from your browser without having to install software or manage your own server. Just write your application. No need to configure or maintain a web server — everything is set up and ready to go. Take your development environment with you! If you have a browser and an Internet connection, you've got everything you need. PythonAnywhere is a fully-fledged Python environment, ready to go, for students and teachers — concentrate on teaching, not on installation hassles. Need help with PythonAnywhere? If you get in touch, you can talk directly with the development team. Help for developers, from developers. We make a normally complicated process very simple, letting you focus on creating exciting applications for your users.Starting Price: $5 per month per app -
23
Ona
Ona
Ona, formerly Gitpod, is a modern development platform that provides mission control for software projects and engineering agents. It allows developers to keep momentum on any device by offering sandboxed, API-first environments in the cloud or within a company’s VPC. These environments come pre-configured with tools, dependencies, and controls, ensuring a consistent and secure setup for professional software engineering. Ona Agents further enhance productivity by assisting with tasks like scoping, writing, reviewing, and documenting code across the entire development lifecycle. Enterprise-ready guardrails deliver fine-grained permissions, policies, and audit trails, giving organizations full control over compliance and security. Trusted by millions of developers and Fortune 500 companies, Ona integrates seamlessly with tools like GitHub, GitLab, AWS, Copilot, and Amazon Bedrock.Starting Price: $20/month -
24
CodeSandbox
CodeSandbox
CodeSandbox is a cloud development platform that empowers development teams to code, collaborate, and ship projects of any size from any device in record time. Run your code in powerful microVMs and build anything without limits. We configure your environment for you and keep your code always ready, behind a URL. Boxy, the CodeSandbox AI coding assistant, is also now available to all Pro subscribers.Starting Price: $12 per month -
25
JS Bin
JS Bin
JS Bin is a tool for experimenting with web languages. In particular HTML, CSS and JavaScript, but JS Bin also supports other languages too (like Markdown, Jade and Sass). JS Bin is ultimately a code sharing site. Along with the code, the complete output of the code is also shared with other developers, colleagues and/or students. As you type into one of the editor “panels”, you and anyone watching your bin will see the output being generated in real-time in the output panel. There’s many features tucked away inside JS Bin, but our design principle is that everyone gets a cursor. So when you arrive for the first time, you’ll be greeted with an initial start HTML page and very little else (though you can customise your default code). If you register (which is free and simple), your profile will remember which bins you created, but also give you a shortcut URL that always takes you to the last bin you worked on.Starting Price: $17.82 per month -
26
ConfigCat
ConfigCat
10 minutes trainable feature flag and configuration management service with unlimited team size, awesome support and no surprises. Turn your features on/off using ConfigCat's dashboard even after your code is deployed. ConfigCat lets you target user segments based on region, email, subscription or any other custom user attribute. We support % rollouts, A/B testing and variations. ConfigCat is a hosted service for feature flag and configuration management. It enables you to decouple feature releases from code deployments. We provide open source SDKs to support easy integration with your Mobile, Desktop application, Website or any Backend system. Separate marketing releases from code deployments. This way you can deploy code anytime the development is done or even incomplete. And turn on the feature later when you are ready. Soft launch, just like the cool kids.Starting Price: €79 per month -
27
Molasses
Molasses
Molasses a high powered feature flag suite for teams that want to move fast but want to control the slow drip of features to customers. Molasses is a suite of feature flag and A/B testing tools that allows your teams to ship code more often with fewer incidents. Feature flags are a technique that allows you to turn on or off features without having to deploy new code. Code for a new feature can live in a production environment for any duration of time without disruption to your customer. When the feature is ready, any team member can turn it on. If there is an issue for any reason, the feature can be easily shut off, limiting impact. With Molasses, feature releases can be a part of your go-to-market timeline and allows your team to worry less about merge conflicts and long lived feature branches. Easily A/B test your newest features. Target users by specific traits on whether they receive the experiment or the control.Starting Price: $50 per month -
28
Find specific answers and trends from documents and websites using search powered by AI. Watson Discovery is AI-powered search and text-analytics that uses innovative, market-leading natural language processing to understand your industry’s unique language. It finds answers in your content fast and uncovers meaningful business insights from your documents, webpages and big data, cutting research time by more than 75%. Semantic search is much more than keyword search. Unlike traditional search engines, when you ask a question, Watson Discovery adds context to the answer. It quickly combs through content in your connected data sources, pinpoints the most relevant passage and provides the source documents or webpage. A next-level search experience with natural language processing that makes all necessary information easily accessible. Use machine learning to visually label text, tables and images, while surfacing the most relevant results.Starting Price: $500 per month
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29
Checkly
Pink Robots
Monitor the status and performance of your API endpoints & vital site transactions from a single, simple dashboard. Checkly is an active reliability platform that brings together the best of end-to-end testing and active monitoring to serve modern, cross-functional DevOps teams. With a focus on JavaScript-based Open Source tech stacks, Checkly is easy to get started with and seamlessly integrates into your development workflow. Checkly is the API & E2E monitoring platform for the modern stack: programmable, flexible and loving JavaScript. Monitor and validate your crucial site transactions. Take screenshots and get instant insights into what's working and what's not. Coding browser click-flows used to be hard. Not anymore. Use modern open source frameworks like Playwright and Puppeteer to automate your flows. Run your checks in 20 locations worldwide. Make sure your APIs always responds quickly and with the correct payload.Starting Price: $0.80 /10k API check runs -
30
Teletype for Atom
Atom
Teletype for Atom lets developers share their workspace with team members and collaborate on code in real time. Working on code together in real time is valuable for knowledge sharing and producing quality software. The Teletype package for Atom aspires to make it as easy for developers to code together as it is for them to code alone. Teletype introduces the concept of real-time "portals" for sharing workspaces. When a host opens a portal, their active tab becomes a shared workspace. There, invited collaborators can join in and make edits in real time. As the host moves between files, collaborators follow along with the active tab automatically. There's no centralized server to spy on your keystrokes, and Teletype uses WebRTC to encrypt all communication between collaborators. What happens in the portal stays in the portal.Starting Price: Free
