Best Free Application Development Software of 2025 - Page 28

Gravitee.io, the most cost-effective, performant, and cost-effective Open Source API Platform, allows your organization to securely publish, analyze, and secure your APIs. Gravitee.io's OAuth2 OpenID Connect (OIDC), and Financial-grade API(FAPI) certified servers allow you to manage your identities. Gravitee.io APIM allows you to control precisely who, when, and how your APIs are accessed by your organization. It is lightweight, flexible, and lightning-fast. Gravitee.io allows you to manage, monitor, deploy, and secure your APIs with strong governance features like API review and API quality. Your API consumers can fully engage with your business through a Gravitee.io portal. This will ensure high quality engagement in the digital age.

Stoplight is an API Design, Development, & Documentation platform. Stoplight Platform enables consistency, reuseability, quality, and ease in your API lifecycle. Here's what Stoplight Platform can do for you: Stoplight Studio's visual designer makes it easy to design APIs Stoplight Prism mocking allows you to automatically create mock API designs - Invite external and internal users to give feedback and collaborate on your designs - Create faster and more powerful APIs - Use Stoplight Spectral to test and enforce style guidelines To create a pleasant experience, document both internal and externe APIs automatically To quickly scale up API programs that are well-governed, standardized, and collaborative, you can use and integrate design-first workflows.

SwaggerHub is a comprehensive platform that integrates API design and documentation, specifically crafted for teams to maintain uniformity and discipline throughout the API development process. Enhance your team's design efficiency while preserving quality and consistent organizational style through a robust Editor that adheres to the latest Swagger (OpenAPI) specifications. This powerful Editor features intelligent error feedback and automatic syntax completion to streamline the coding process. Additionally, it includes Style Validators to maintain design uniformity across various APIs. With API Mocking, teams can simulate operations without the need for actual code. The Domains feature allows for the storage, reuse, and referencing of common OAS syntax across multiple APIs, promoting efficiency. Centralizing your API design and development in one location enables seamless collaboration among team members on new projects and easy discovery of existing APIs. Manage the entire API lifecycle through a single, centralized internal repository hosted in the cloud, which enhances accessibility and coordination among team members. By utilizing SwaggerHub, teams can significantly improve their workflow and foster innovation in API development.

Amazon API Gateway is an entirely managed service designed to simplify the process for developers to create, publish, maintain, monitor, and secure APIs, regardless of scale. Serving as the "entrance" for applications, APIs facilitate access to data, business logic, or services from the backend. Through API Gateway, developers can build both RESTful and WebSocket APIs, which are essential for enabling real-time two-way communication in applications. This service supports both containerized and serverless environments as well as web applications. It efficiently manages the complexities of processing hundreds of thousands of simultaneous API requests, handling traffic management, CORS, authorization and access control, throttling, monitoring, and versioning. Moreover, there are no upfront fees or minimum charges associated with API Gateway; instead, you only pay for the API calls and data transfer you utilize. With a tiered pricing structure, as your API usage grows, you can benefit from reduced costs, making it a cost-effective solution for businesses of all sizes. Additionally, the simplicity and scalability of API Gateway allow developers to focus more on building features rather than managing infrastructure.

Effortlessly create, launch, and expand web applications and APIs precisely how you want. Choose from a variety of frameworks including .NET, .NET Core, Node.js, Java, Python, or PHP, whether you're utilizing containers or operating on Windows or Linux platforms. Achieve strict enterprise-level standards for performance, security, and compliance through a reliable, fully managed service that processes more than 40 billion requests daily. This fully managed service ensures infrastructure upkeep, security updates, and scalability are handled seamlessly. It also features integrated CI/CD capabilities and supports deployments without downtime. With comprehensive security and compliance measures, including SOC and PCI certifications, you can deploy effortlessly across various environments such as public cloud, Azure Government, and on-premises settings. You have the flexibility to utilize your preferred code or container alongside your chosen framework. Enhance developer efficiency with deep integration into Visual Studio Code and Visual Studio, while also optimizing your CI/CD processes via Git, GitHub, GitHub Actions, Atlassian Bitbucket, Azure DevOps, Docker Hub, and Azure Container Registry. Furthermore, this platform allows for continuous updates and improvements, ensuring your applications remain cutting edge and responsive to user needs.

Start without any cost today! Our introductory plan provides you with access to machines equipped with a complete Python environment. You can easily develop and host your website or any code directly in your browser, eliminating the need for software installation or server management. Just focus on writing your application; there's no requirement to set up or maintain a web server—everything is already configured and ready to use. You can even carry your development environment with you! As long as you have a browser and an Internet connection, you possess all the tools you need. PythonAnywhere offers a comprehensive Python environment that’s ideal for both students and educators—allowing you to focus on teaching instead of dealing with installation issues. Should you need assistance with PythonAnywhere, you can communicate directly with our development team, ensuring that help comes from experienced developers. We simplify a typically complex process, allowing you to dedicate your energy to crafting innovative applications for your audience. This way, you can maximize your productivity while minimizing technical distractions.

Ona, the evolution of Gitpod, is built to help teams move beyond traditional IDEs by serving as a central hub for modern software engineering. Its sandboxed environments run with full OS-level isolation, giving developers secure and consistent setups whether hosted in the cloud or on private infrastructure. With Ona Agents, teams can automate repetitive tasks, accelerate handoffs, parallelize work, and receive real-time support across scoping, coding, reviewing, and documentation. The platform ensures that developers can seamlessly switch between agent conversations, browser-based VS Code Web, or desktop IDEs without losing productivity. Enterprise-level guardrails reinforce compliance by offering detailed audit trails, network controls, and fine-grained organizational policies. Ona is already trusted by global enterprises in industries like banking and pharmaceuticals, highlighting its reliability at scale. Integrations with GitHub, GitLab, Redis, MongoDB, and AWS make it easy to connect existing workflows without disruption. With SOC 2 certification, GDPR compliance, and WCAGAA accessibility standards, Ona sets the standard for secure and inclusive developer productivity.

CodeSandbox aims to make it easier for you to express your ideas with code, and to validate them. It also removes the hassles of setting up development tooling and sharing your project. Join us to help build the future of web coding. Over 4M developers use the platform each month. This includes organizations like Shopify and Atlassian. Since its launch, creators have created over 35M apps. It's used in thousands of open-source projects like React, Vue and Babel. You can invite your friends, colleagues, or team to join you or simply view your creation by using a URL. Use any of 1M+ packages for building real, powerful applications quickly and efficiently. Import and run repos directly from GitHub or choose from hundreds of templates to start in seconds. Boxy, CodeSandbox's AI-powered coding assistant, is now available to all Pro subscriptions.

JS Bin is an online platform designed for testing and experimenting with various web technologies, most notably HTML, CSS, and JavaScript, while also accommodating other languages such as Markdown, Jade, and Sass. At its core, JS Bin serves as a code-sharing hub, enabling users to share not just their code but also the complete results produced by it with fellow developers, peers, or students. As you make changes in one of the editing panels, both you and anyone observing your bin can see the output update in real-time within the designated output panel. JS Bin is packed with numerous features, yet it adheres to a design philosophy ensuring that every user has access to a cursor from the moment they arrive. Upon your first visit, you will encounter a basic starter HTML page along with minimal distractions, although there is the option to customize your default code for convenience. By registering for a free account, which is a straightforward process, you can have your profile retain a record of the bins you've created and also provide you with a shortcut URL that directs you to the most recent bin you worked on, making it easy to revisit your projects. Moreover, this allows for a seamless workflow, enabling programmers to efficiently iterate on their coding experiments.

Experience a seamless feature flag and configuration management service that can be set up in just 10 minutes, designed to accommodate any team size while offering exceptional support and transparency. With ConfigCat's intuitive dashboard, you can easily toggle features on and off even after your application is live. Target specific user segments based on attributes such as location, email, subscription status, or any custom criteria you define. We also facilitate percentage rollouts, A/B testing, and variations to enhance your feature release strategy. As a fully hosted service, ConfigCat allows you to separate the timing of feature launches from code deployments, enabling developers to release their code whenever they complete their work, whether it's fully finished or still in progress. This means you can opt for a soft launch and activate features at your convenience, just like the trendsetters do. With our open-source SDKs, integration with your mobile apps, desktop software, websites, or backend systems is straightforward and hassle-free.

Molasses is an advanced feature flag suite designed for teams eager to accelerate their development while maintaining control over the gradual introduction of new features to their customers. This comprehensive collection of feature flag and A/B testing tools empowers teams to deploy code more frequently, minimizing the occurrence of incidents. By utilizing feature flags, developers can activate or deactivate features without the need for additional deployments. Consequently, new features can exist in the production environment indefinitely without causing disruptions for users. Once a feature is ready for public use, any team member can enable it at their discretion. In the event of any complications, the feature can be promptly disabled, thereby reducing potential negative effects. With Molasses, launching new features can seamlessly integrate into your go-to-market strategy, alleviating concerns over merge conflicts and prolonged feature branches. Moreover, it allows for straightforward A/B testing of the latest features, enabling targeted user experiences based on specific characteristics to determine whether they receive the experimental version or the control. This agility not only enhances the development process but also improves overall customer satisfaction as teams can iterate quickly based on real user feedback.

Leverage AI-driven search capabilities to extract precise answers and identify trends from various documents and websites. Watson Discovery utilizes advanced, industry-leading natural language processing to comprehend the distinct terminology of your sector, swiftly locating answers within your content and revealing significant business insights from documents, websites, and large datasets, thereby reducing research time by over 75%. This semantic search transcends traditional keyword-based searches; when you pose a question, Watson Discovery contextualizes the response. It efficiently scours through data in connected sources, identifies the most pertinent excerpts, and cites the original documents or web pages. This enhanced search experience, powered by natural language processing, ensures that vital information is readily accessible. Moreover, it employs machine learning techniques to categorize text, tables, and images visually, all while highlighting the most relevant outcomes for users. The result is a comprehensive tool that transforms how organizations interact with information.

Keep track of the performance and status of your API endpoints and essential website transactions using a single, user-friendly dashboard. Checkly serves as a proactive reliability platform that merges the advantages of end-to-end testing with continuous monitoring, specifically tailored for contemporary, cross-functional DevOps teams. Emphasizing JavaScript-based open-source technology stacks, Checkly offers a straightforward setup process and integrates smoothly into your existing development processes. As the go-to platform for API and end-to-end monitoring in modern environments, Checkly is programmable, adaptable, and enthusiastically supports JavaScript. Ensure your important website transactions are continuously monitored and validated, while also capturing screenshots to provide immediate insights into operational performance. Automating browser click-flows has become significantly easier; utilize modern open-source tools such as Playwright and Puppeteer for seamless flow automation. Execute your monitoring checks from 20 different locations globally to guarantee that your APIs respond swiftly and deliver the correct data payload consistently. By leveraging Checkly, you can enhance the reliability and performance of your web applications while simplifying your testing processes.

Teletype for Atom enables developers to collaboratively share their coding environment and work on projects simultaneously. Collaborating in real time enhances knowledge exchange and contributes to the development of high-quality software. This Teletype package aims to simplify the process of coding together, making it as seamless as coding independently. It introduces innovative "portals" that allow users to share their workspace effectively. When a user creates a portal, their current tab becomes a collaborative space where invited team members can join and edit the code live. As the host navigates through different files, the collaborators automatically follow the active tab, ensuring they are always on the same page. Importantly, there is no central server monitoring your activity, as Teletype utilizes WebRTC to secure all interactions among users. In essence, the information shared within the portal remains exclusive to those involved, fostering a secure collaborative environment. This tool ultimately enhances teamwork and optimizes the coding experience for developers.

GitDuck serves as a platform for software teams to engage in discussions, offering a video chat solution that facilitates real-time communication and collaboration. This tool seamlessly integrates with your code and various applications, ensuring that you can conduct more efficient video calls with your colleagues. Instead of sharing your entire screen, you can directly share your code, allowing for a more focused collaboration with fellow developers right from your IDE. It also boasts low CPU and bandwidth usage, making it ideal for real-time teamwork. The simplicity of room links eliminates the hassle of complex URLs, letting you easily converse on your team's dedicated page, which is memorable and straightforward to access. GitDuck supports collaboration across different IDEs, allowing each team member to use their preferred environment. Additionally, you can securely share your terminal sessions with your team, benefiting from P2P encryption for all connections. This allows for secure discussions about your product while also enabling you to plan your sprint development effectively; you can collaboratively write user stories and assess customer feedback in real-time, enhancing the overall productivity of your team.

With real-time collaboration superpowers, extend Git. Connect. Connect. Automated. Connect your issue tracker and share the issue you are working with based on your branch. Live. You can see the changes of others in the gutter of the editor and be notified when you make a conflicting one. Patch. View diffs of other contributors local files and cherry-pick individual files, lines, or complete working copies. Codeshare. Codeshare allows you to make voice and video calls from your editor. Agnostic. Edit together simultaneously, interoperable with VS Code and all JetBrains IDEs.

CoScreen enables multiple team members to share and edit application windows simultaneously on a joint desktop. Key features: - Crystal-clear audio and video chat - Multi-user screen sharing of any desktop or browser app with one click - Multi-user editing of shared windows using mouse and keyboard, 2-3x lower latency than Zoom, Slack, and Microsoft Teams - See who from your team is online and call them with one click - Integrate CoScreen with your favorite apps like Slack, VS Code, IntelliJ, and other JetBrains IDEs - Enterprise-grade compliance and securely encrypted connections At CoScreen, our mission is to help teams and organizations work together more seamlessly and effectively than ever before. We empower teams like yours to become more productive without getting burned out or video chat-fatigued - no matter if you work fully remotely, co-located, or hybrid. Top use cases: Team standups, 1:1s, sprint demos, pair programming, coding interviews, employee onboarding, incident management, incident response, and many more...

MatDeck is a universal technical software that can be used for mathematics, science, engineering, chemistry, programming, databases, and many other purposes. Our software includes a complete Python IDE, thousands of mathematical functions, a drag-and-drop GUI Designer, and many visualization tools. All this is embedded in a cutting-edge, live document that provides a professional computing environment at a low cost.

Xsolla serves as a dedicated ecommerce platform for the video game industry, integrating its Transaction Engine and Business Engine to assist developers and publishers in marketing, selling, connecting, and optimizing their games on a global scale. By focusing solely on gaming, Xsolla effectively addresses the challenges of distribution, marketing, and monetization, allowing creators, publishers, and platform partners to broaden their reach, boost sales, and enhance revenue. With a powerful combination of tools available on a single platform, Xsolla empowers you to market, sell, connect, and optimize your game effortlessly. Our comprehensive solutions leverage our products, industry relationships, and expertise to cater to the unique requirements of your business. Exceptional games can arise from anywhere, and at Xsolla, we are committed to ensuring that the most innovative ideas are developed, recognized, and enjoyed. To achieve this, we have created a range of products designed to eliminate obstacles between creators and the essential support they require, fostering a thriving ecosystem for game development. Together, we can transform great concepts into memorable gaming experiences.

Improve your website's search engine rankings by delivering a static HTML version of your JavaScript site to crawlers, all while maintaining an excellent user experience for your visitors. Prerender® offers a software-as-a-service solution that optimizes your JavaScript website for search engine optimization. For your website to appear in search results on platforms like Google, it must first be crawled and indexed by their web crawlers, such as Googlebot. These crawlers typically analyze a simplified HTML version of your site, excluding visual and interactive components. This process is usually straightforward for sites built with static HTML and can be completed in a matter of days. However, for websites developed using JavaScript frameworks, the situation becomes more complex. Although Google is capable of crawling JavaScript-based sites, the process is considerably more challenging, often resulting in weeks of waiting before your content gets indexed and appears in search results. By utilizing Prerender®, Google can successfully access and recognize all of your website's content and links, ensuring that you reach your audience quickly and efficiently, thus enhancing your visibility online.

EqualWeb conducts a thorough examination of your website domain to identify any potential barriers that could affect accessibility or pose a risk of non-compliance for your organization. The service is highly customizable and seamlessly integrates with your website—just enter your domain to begin the process. With a database featuring over 100,543,679 web pages across more than 50 content management systems, our platform is well-equipped to enhance accessibility. It also houses more than 1,000,000 rules for accessibility remediation. Utilizing advanced machine learning algorithms, we analyze the data to discover patterns and trends related to accessibility challenges, enabling us to forecast remediation requirements for fresh data. Our comprehensive analysis of your site allows us to implement accessibility rules tailored to your unique code, content, and aesthetic. This automated system is engineered to address common accessibility issues, aiming to elevate your website's compliance level to an impressive 95%. To ensure complete adherence to accessibility standards, our team of experts, including individuals with disabilities, conducts a detailed manual audit using specialized reader software, ensuring that no aspect is overlooked in the pursuit of full compliance. This thorough approach guarantees that your website not only meets regulatory requirements but is also user-friendly for all visitors.

All users ought to enjoy equal access to your website. Tenon offers tools, testing, and training to enhance accessibility across your organization. Are you in need of an automated accessibility testing solution? Our API seamlessly integrates into your development workflow. Do you require an accessible website quickly? Tenon's team of testers, developers, and auditors can swiftly address accessibility challenges. Looking for a long-term solution to accessibility issues? Tenon is dedicated to transforming your organization into one that prioritizes accessibility. Not only does Tenon provide the finest automated accessibility testing tools available, but we also tackle a wide range of accessibility challenges. With hundreds of VPATs and accessibility audits under our belt, we have the experience to back our claims. Our rapid remediation service resolves accessibility concerns on your website even as testing continues. Additionally, our developers can educate your development team on writing accessible code while aiding in defining the KPIs and processes essential for becoming an accessible organization. Tenon can guarantee that your latest pull request meets accessibility standards or monitor your project weekly, delivering detailed reports via email to keep you informed. Ultimately, our commitment is to empower your organization with the tools and knowledge necessary to maintain accessibility as a core principle.

We are a group of four friends dedicated to FeedBaxley, a tool designed to enable businesses to gain insights from their customers rather than operating without guidance. With FeedBaxley, you can start collecting user feedback in mere seconds. By simply adding a single line of code, you can access valuable data instantly. This line of code introduces a dynamic form that allows you to gather essential user research directly within your application. Teams focused on product development can make informed decisions thanks to the insights derived from user research. You don’t need any coding expertise to customize your surveys to align with your brand identity. Feedback can be viewed in real-time right within your Slack workspace, making it easy to stay updated. Integrating FeedBaxley is straightforward; just click a button to get started. After signing up, the first step is to create a new widget tailored to your needs. One of the exciting features you can customize for your widget is its "display type." While the default setting is a link, you also have the option to showcase it as a "Tab," allowing it to adhere to the side of the page, effectively resembling a tab. This flexibility enhances user engagement and ensures your feedback collection process is both effective and visually appealing.

Conducting focus groups has never been easier, offering a quick, effortless, and no-cost option for initiating focus group discussions. You can kick off your free focus group in just 15 minutes by setting it up and posing a few questions for participants to engage with. Distribute your secure group link across your social media platforms, customer databases, or even attach it at the conclusion of any online survey. Participants have the opportunity to communicate with both you and one another, creating a collaborative environment. You can maintain your focus groups for as long as you desire, whether it be for a few hours, several days, weeks, or even months! FocusGroupIt stands out as a straightforward, rapid, and budget-friendly (or free) method for collecting qualitative insights online. To ensure the most informed decision-making, organizations should leverage both quantitative data (such as surveys) and qualitative insights (like focus groups). While there are various effective options for obtaining quantitative information using DIY survey tools like SurveyMonkey, the availability of tools for qualitative feedback has been quite limited. This gap in the market is precisely why FocusGroupIt was developed, offering a valuable solution for those seeking in-depth insights. Now, anyone can easily access the qualitative data they need to drive their decisions.

Methinks enables you to connect directly with your target audience, allowing you to pose crucial questions and gain valuable insights. You can either utilize the methinks platform on your own or collaborate with our team to efficiently reach your research objectives without breaking the bank. This online research tool empowers product developers, researchers, project managers, and businesses to conduct interviews and obtain essential feedback from real consumers whenever needed. Our platform boasts a variety of features including video calls, mobile and desktop screen sharing, video transcription, bookmarking, note-taking, and targeted audience selection. By using methinks, you can secure precise data and comprehensive insights that significantly enhance your research and development initiatives, ultimately saving time, money, and resources. Methinks transforms what used to be a costly and lengthy process into one that is five times more affordable and ten times quicker. You can make informed decisions based on customer feedback obtained through direct video interactions, enabling you to swiftly test and validate new products and marketing strategies, ultimately boosting revenue and fostering growth. With methinks, you gain a competitive edge by harnessing consumer insights in real time, allowing for agile adjustments to your approach.