Alternatives to NSwag
Compare NSwag alternatives for your business or organization using the curated list below. SourceForge ranks the best alternatives to NSwag in 2026. Compare features, ratings, user reviews, pricing, and more from NSwag competitors and alternatives in order to make an informed decision for your business.
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1
JOpt.TourOptimizer
DNA Evolutions GmbH
JOpt.TourOptimizer is an adaptable component to solve VRP, CVRP, and VRPTW class problems for any route optimization in logistics or similar fields. JOpt.TourOptimizer gives full access to modern optimization strategies and already includes many useful functions and algorithms to model various tour optimization problems. The JOpt.TourOptimizer library is easily integrated into any product. It can be customized to meet special requirements or adapt to the industries’ specific needs in which your software products are used. JOpt.TourOptimizer – enables you to enhance your product or project by seamlessly integrating DNA’s tour and resource optimization engine. It comes as a Java library or in Docker Container utilizing the Spring Framework and Swagger. -
2
Archbee
AiurLabs
Documentation tool for high-performing teams. Archbee is the place to centralize your company's information. Unify knowledge in product, engineering, support, marketing, sales. Use cases: • Manage team knowledge • Developer & API docs • Documentation sites • Document internal processes • Collaborate on documents • Onboard & train teammates • Create documentation for your customers • Bring your own domain Integrations: Slack, Airtable, Loom, Trello, Lucidchart, Typeform, Mindmeister, Prezi, Miro, Google Docs, Google Sheets, Google Slides, Figma, Invision, Framer, Abstract, Marvel, Github, GraphQL, Swagger/Open API, Numeracy, Mode Analytics, Codepen, Intercom, Google Analytics.Starting Price: $60 per month -
3
Swagger
SmartBear
Simplify API development for users, teams, and enterprises with the Swagger open source and professional toolset. Find out how Swagger can help you design and document your APIs at scale. The power of Swagger tools starts with the OpenAPI Specification — the industry standard for RESTful API design. Individual tools to create, update and share OpenAPI definitions with consumers. SwaggerHub is the platform solution to support OpenAPI workflows at scale. Swagger open source and pro tools have helped millions of API developers, teams, and organizations deliver great APIs. Swagger offers the most powerful and easiest to use tools to take full advantage of the OpenAPI Specification. -
4
Swagger Codegen
SmartBear
Swagger Codegen can simplify your build process by generating server stubs and client SDKs for any API, defined with the OpenAPI (formerly known as Swagger) specification, so your team can focus better on your API’s implementation and adoption. Moving from design to development has never been easier with Swagger Codegen in SwaggerHub. API Definition files can be used to create stubs in popular languages, like Java, Scala, and Ruby, with just a few clicks.Starting Price: Free -
5
DapperDox
DapperDox
DapperDox is open source, and provides rich, out-of-the-box, rendering of your OpenAPI specifications, seamlessly combined with your GitHub flavoured Markdown documentation, guides, and diagrams. Publish your API Swagger specifications like never before. Document multiple API specifications as a suite of products, and cross-reference as required. The built-in API explorer enables API experimentation from within the documentation pages, and can seamlessly integrate into your authentication and API key model. DapperDox can proxy your developer platform, allowing full integration of API key generation and management alongside your specifications and guides. Change themes and present your documentation in the style you like. DapperDox was created by API documentation authors for one purpose, to improve the quality and usability of the API documentation they were providing for other developers.Starting Price: Free -
6
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 -
7
Konfig
Konfig
Konfig is a developer tool that automates the generation of SDKs, documentation, demos, and tutorials for REST APIs, facilitating seamless onboarding for external developers. By importing an OpenAPI Specification or Postman Collection, Konfig automatically produces SDKs in popular programming languages, including TypeScript, Python, Java, C#, PHP, Ruby, Go, Swift, and Dart. The platform ensures high-quality SDKs by identifying and rectifying errors in the OpenAPI Specification through its linter and writing test cases to prevent API updates from breaking existing SDKs. Konfig also generates branded, user-friendly documentation that auto-updates with any changes to the API specification, maintaining consistency between documentation and SDKs. Additionally, it allows for the creation of engaging demos and tutorials using familiar Markdown, enabling users to run code in-browser for hands-on learning. -
8
Bump.sh
Bump.sh
Bump.sh is the place for API developers to centralize all of their API documentation. Working with REST, Event-Drivent Architecture, or a mix of API technologies? Bump.sh is the only tool on the market that supports OpenAPI/Swagger, AsyncAPI, and soon more (such as GraphQL, SOAP, and gRPC). Plug Bump.sh into your CI, use our CLI, or upload your specification files manually, and benefit from a stunning UI that definitely contrasts with the legacy tools on the market. Enjoy all of the nifty UX details: we know devs will like it, as they were imagined by devs. Unique on the market: every time you publish a new version of your API documentation, Bump.sh automatically detects changes, publishes a changelog, and sends alerts to subscribe readers if the changes break anything.Starting Price: $149 per month -
9
Fern
Fern
Stripe-level SDKs and Docs for your API. Offer type-safe SDKs in the most popular languages. Let Fern do the heavy lifting of generating and publishing client libraries so your team can focus on building the API. Import your API definition, whether it's in OpenAPI or Fern's simpler format. Select which code generators you'd like to use: TypeScript, Python, Java, Go, Ruby, C#, Swift. Fern semantically versions and publishes packages to each registry (e.g. npm, pypi, maven). Beautiful API documentation that reflects your brand.Starting Price: $250 per month -
10
AutoRest
Microsoft
The AutoRest tool generates client libraries for accessing RESTful web services. Input to AutoRest is a spec that describes the REST API using the OpenAPI specification format and streamlines the creation of client code across multiple programming languages, including C#, Java, Python, TypeScript, and Go. This automation enhances consistency and efficiency in API consumption, reducing the manual effort required to develop and maintain client libraries. AutoRest operates through a flexible pipeline that processes OpenAPI input files, transforming them into a code model which is then utilized by language-specific generators to produce client code adhering to each language's design guidelines. The tool supports both OpenAPI 2.0 and 3.0 specifications, ensuring compatibility with a wide range of APIs. Developers can install AutoRest on Windows, macOS, or Linux systems, with installation facilitated via Node.js.Starting Price: Free -
11
Speakeasy
Speakeasy
Speakeasy is a platform that enhances API integration by generating handwritten, type-safe SDKs in over nine programming languages, including TypeScript, Python, Go, Java, and C#. These SDKs improve API integration times by up to 60% by eliminating the need for users to write boilerplate code, reducing common implementation errors, and expanding API accessibility across various programming communities. The platform also simplifies the creation of Terraform providers, allowing for the definition of resources and operations, automatic validation from OpenAPI specifications, and handling complex API landscapes. Additionally, Speakeasy offers end-to-end testing workflows to enforce API standards and protect against breaking changes, as well as SDK documentation that remains up-to-date with compilable usage snippets for every SDK method. Trusted by top API companies, Speakeasy's solutions are designed to provide robust SDKs, Terraform providers, and comprehensive testing tools.Starting Price: $250 per month -
12
Procurement Service Bus (PSB)
eConnect
The Procurement Service Bus (PSB) provides a cloud managed connection to eDelivery networks like the Peppol network. Specially designed for large volumes and low latency with automatic scaling. Build with redundancy and high availability in mind. The shared cloud approach is centrally monitored for optimal utilization and predictable costs. Additional services are available, like target-transformation, automatic retry and party discovery. The Procurement Service Bus is more than just an AccessPoint As A Service (APAAS). We connect the Peppol network with the enterprise systems. The interface is based on REST with OAUTh 2.0 layer. The API’s are self explanatory and made visible with the OpenApi UI. The swagger.json file can be downloaded on top of the OpenAPI UI main page and can be used to generate code for several languages. If you choose to generate code, we recommend using OpenAPI Generator. -
13
OpenAPI Generator
OpenAPI Generator
OpenAPI Generator is an open-source tool that automatically generates client libraries, server stubs, API documentation, and configuration files from an OpenAPI Specification (OAS) document. It supports a wide range of programming languages and frameworks, making it easier for developers to integrate APIs into their applications. By automating the creation of boilerplate code, OpenAPI Generator reduces development time and ensures consistency in API interactions. It allows teams to focus on implementing business logic rather than dealing with repetitive tasks like data serialization, deserialization, and HTTP request handling. The tool is widely used in API-driven development, enabling seamless integration of third-party services and simplifying the process of keeping API consumers and providers in sync.Starting Price: Free -
14
RepreZen API Studio
RepreZen
Build APIs that click with client apps. RepreZen API Studio is an integrated workbench that brings API-first design into focus for your whole team, harmonizes your API designs, and generates APIs that click into client apps. Effortlessly. Full-featured OpenAPI editor with content assist, customizable templates, outline navigation & more for fast, focused API design. Live documentation view gives you immediate clarity & insight from the API user's perspective. Interactive diagram lets you visualize the API as you design. Generate & view in any browser to give API users a fast, intuitive overview. Split a large Swagger API spec into multiple files, even share & reuse API components across projects & teams! Edit, navigate, document & generate, all fully compliant with OpenAPI standards. Consolidate & simplify complex multi-file projects to a single file, for easy downstream code generation & docs presentation.Starting Price: $22 per month -
15
SuperCore
SuperCore
The next-gen core banking platform for ambitious banks. SuperCore® is our cloud-native core banking platform. It helps banks understand their customers better, release products faster, unlock their data, and deliver connected experiences. As a SaaS-managed service for core banking, SuperCore is available globally via AWS and simplifies your deployment, integration, and infrastructure operations. As a result, banks can massively reduce their cost to serve. Build products in minutes with our no-code product builder. Use our real-time events stream to get fresh customer insights that speed up decision-making. Seamlessly integrate your channels and applications with our API-first architecture. A flexible microservices architecture, modular and configurable, powered by a unified data model. Futureproof your technology with a layer of SmartAdapters in JavaScript with OpenAPI Swagger documentation. With pre-built integrations and modules that get you live faster. -
16
AssemblyScript
The AssemblyScript Project
A TypeScript-like language for WebAssembly. AssemblyScript targets WebAssembly's feature set specifically, giving developers low-level control over their code. Its similarity with TypeScript makes it easy to compile to WebAssembly without learning a new language. Integrates with the existing Web ecosystem - no heavy toolchains to set up. Simply npm install it! AssemblyScript is free and open source software released under the Apache License, Version 2.0, builds upon Binaryen and is based on the WebAssembly specification. It is brought to you by the following awesome people:Starting Price: Free -
17
ASP.NET Core
Microsoft
Millions of developers use or have used ASP.NET 4.x to create web apps. ASP.NET Core is a redesign of ASP.NET 4.x, including architectural changes that result in a leaner, more modular framework. ASP.NET Core 3.x and later can only target .NET Core. Generally, ASP.NET Core is composed of .NET Standard libraries. Libraries written with .NET Standard 2.0 run on any .NET platform that implements .NET Standard 2.0. There are several advantages to targeting .NET Core, and these advantages increase with each release. Tag Helpers enable server-side code to participate in creating and rendering HTML elements in Razor files. Built-in support for multiple data formats and content negotiation lets your web APIs reach a broad range of clients, including browsers and mobile devices.Starting Price: Free -
18
Amadeus Digital Commerce
Amadeus
Increase your digital sales by offering your customers a smooth booking experience, across different touchpoints and devices. Our user-friendly API offers you the flexibility and functionalities to build best in class front-ends with a fast time-to-market. Adapt quickly to customer demand using the tools, data models, and open technology offered by Amadeus Digital Commerce and the digital developer toolkit, part of the Amadeus Digital Experience suite. Tap into wider UI development resources thanks to open technology. Amadeus’ Digital Commerce API follows the industry-standard OpenAPI specifications (Swagger) model and is based on RESTful technology and the JSON data format. Achieve quick adoption from your developers and reduce UI development costs, with a data model that is easy-to-use and requires no specialist PSS knowledge. Achieve higher conversion rates and increase brand loyalty thanks to the smooth booking process and differentiation capabilities. -
19
AssureAPI
Opcito
Introducing AssureAPI, a powerful automation tool to make testing your RESTful APIs a breeze. The Zero Code tool takes advantage of OpenAPI/Swagger specifications to effectively interpret your API’s structure and operations. It automatically generates and runs a wide range of test cases, both positive and negative, against your API endpoints. With AssureAPI, you can ensure your APIs are reliable, secure, and performing at their best. Say goodbye to long testing cycles, test case coding, and frequent updates; this tool helps you speed up your time to market while equipping your business with robust, high-performing APIs. Automate repetitive tasks and let AssureAPI do the heavy lifting while you focus on strategic development. No code minimizes the risk of manual execution mistakes with consistent, automated testing. Cover everything from basic functionality to complex edge cases, and ensure your APIs are robust and reliable. -
20
ATA
ATA
ATA is an AI-powered API management platform that centralizes design, testing, governance, documentation, and lifecycle workflows into a single intelligent workspace to help teams design, build, test, maintain, and govern APIs with higher quality and collaboration. It keeps API code, design documentation, specifications, test cases, and release notes in sync, reducing manual effort and drift while supporting OpenAPI specs, mock servers for frontend progress without backend readiness, and scheduled API monitoring to detect slow responses, timeouts, or failures early. It includes a Developer Studio for design-first OpenAPI creation and version control, E2E Test Automation with AI-generated robustness and security tests, mock servers, chained API workflows, and UI automation testing, and a Documentation Portal that centralizes API docs with multi-editor support, version management, secure access control, and auto-linked live endpoints. -
21
Beeceptor
Beeceptor
Beeceptor is a high-performance, no-code platform that eliminates development bottlenecks through instant API mocking and real-time traffic inspection. Don't wait for backend teams to deploy; spin up a named subdomain in seconds and start integrating immediately. Key Capabilities: - Multi-Protocol Support: Simulate REST, SOAP, GraphQL, and gRPC endpoints without writing server-side code. - AI-Powered Mocking: Use AI to generate realistic, contextually relevant test data or import OpenAPI/Swagger for CRUD-ready mocks. - Chaos Engineering: Test "unhappy paths" by simulating latencies, timeouts, and rate limits. - Local Tunneling & Proxying: Expose localhost via HTTPS and inspect live webhooks or mobile traffic in real-time. Decouple your frontend and mobile teams, stabilize CI/CD by removing third-party dependencies, and go from API design to functional mock in minutes. Beeceptor scales from solo devs to enterprise-grade integration testing.Starting Price: $10 per month -
22
Docsie
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 securityStarting Price: $39 per month (annual) -
23
42Crunch
42Crunch
Your most valuable intelligence isn’t AI, it’s your developers. Empower them with tools to be the driving force behind API security – ensuring continuous, unparalleled protection across the entire API lifecycle. Push your OpenAPI definition to your CI/CD pipeline and automatically audit, scan and protect your API. Audit your OpenAPI / Swagger file against 300+ security vulnerabilities, we’ll rank them by severity level and tell you exactly how to fix them – making security a seamless part of your development lifecycle Enforce a zero-trust architecture by ensuring all your APIs meet a set security standard before production, scan the live API endpoints for potential vulnerabilities, and automate redeployment. Ensure security of all your APIs from design to deployment, get detailed insight about attacks on APIs in production – and protect against threats – without impacting performance. -
24
ReSharper
JetBrains
The Visual Studio Extension for .NET Developers. On-the-fly code quality analysis is available in C#, VB.NET, XAML, ASP.NET, ASP.NET MVC, JavaScript, TypeScript, CSS, HTML, and XML. You'll know right away if your code needs to be improved. Not only does ReSharper warn you when there's a problem in your code but it provides hundreds of quick-fixes to solve problems automatically. In almost every case, you can select the best quick-fix from a variety of options. Automated solution-wide code refactorings help you safely change your code base. Whether you need to revitalize legacy code or put your project structure in order, you can rely on ReSharper. You can instantly navigate and search through the whole solution. Jump to any file, type, or type member, or navigate from a specific symbol to its usages, base and derived symbols, or implementations.Starting Price: $12.90 per user per month -
25
One Auto API
One Auto API
One Auto API is a unified automotive data platform that simplifies access to a broad range of vehicle and market information by consolidating multiple leading automotive data providers into a single, developer-friendly API. Rather than integrating separate data sources with different formats and contracts, users can query one endpoint to retrieve rich automotive datasets, including vehicle specifications, retail pricing, valuations, technical details, market metrics, registration lookups, tyre fitments, and history checks from partners like Auto Trader, Experian, Brego, DriveRightData, and others. It offers comprehensive SDKs in over 30 languages, sandbox access, and OpenAPI/Swagger documentation to help developers integrate data quickly into apps, websites, dealer portals, and software systems, reducing engineering overhead and accelerating product delivery. -
26
liblab
liblab
Reduce your customers' API integration time by offering SDKs in languages they are familiar with. Our SDK Code Generator creates language-specific SDKs in under a minute and integrates into your CI/CD pipeline for no-touch maintenance with every API update. Generate SDKs in multiple languages with built-in best practices in less than a minute. Integrate them into your CI/CD pipeline to keep SDKs and documentation synchronized with every API update, with no additional engineering effort required. Autogenerate SDKs in Python, Java, Typescript, C#, Go, and PHP with language best practices built in. Easily integrate SDK deployments into your CI/CD pipeline without extra work. liblab automates the process for PyPI, Maven, NuGet, Go, Packagist, and npm.Starting Price: $120/month -
27
Imperva API Security
Imperva
Imperva API Security protects your APIs with an automated positive security model, detecting vulnerabilities in your applications, and shielding them from exploitation. Organizations manage a minimum of 300 APIs on average. Imperva’s API Security amplifies your security posture by automatically generating a positive security model for every uploaded API swagger file. APIs are being churned out faster than security teams can review, influence, and sign off on before they’re pushed into production. Imperva’s API Security enables your teams to stay ahead of DevOps via automation. Imperva API Security empowers your approach with out-of-the-box security rules adjusted to your APIs. This ensures complete OWASP API coverage and promotes visibility for all security events per API endpoint. With API Security, simply upload the OpenAPI specification file that your DevOps team has created and Imperva will automatically build a positive security model. -
28
Zuplo
Zuplo
We’re reinventing API & MCP management for everybody, from startups to enterprises. Add authentication, analytics, rate-limiting, and developer documentation to your APIs and MCP servers in minutes. Protect your API by adding rate-limiting with Zuplo in minutes, and add over 50 available plugins like authentication to your API with a single click. Zuplo was built on the edge and deployed to +300 data centers in the world, which makes multi-cloud deployments first-class. With Zuplo you can run different workloads in different clouds while enforcing a unified set of security policies. Zuplo is the only API gateway that runs your OpenAPI spec directly. Leverage the OpenAPI ecosystem to build your API, and then deploy it to Zuplo without additional configuration. Zuplo automatically generates beautiful docs for your API. You can customize the docs with markdown and devs can self-serve API Keys directly from your docs. You can also directly generate hosted MCP servers from your OpenAPI.Starting Price: $0 per month -
29
RestSequence
Opcito
RestSequence is a no-code platform that allows users to create end-to-end product test workflows by using underlying product-under-test APIs. It enables users to create, manage, and execute test cases and scenarios efficiently. By harnessing the power of their application's Swagger API collection, RestSequence empowers users to quickly design and test scenarios, guaranteeing superb application performance and reliability. With RestSequence, you can onboard generated test scenarios, integrate them into your CI/CD pipeline, and run them on nightly, weekly, or release builds. The best part is that the output file generated once using RestSequence can be used for future testing scenarios without making any changes. RestSequence reads and parses API details (method, URL, payload, request body, etc.) from a Swagger specification file. It tests each API endpoint for correct responses, status codes, required fields, and invalid data, tracking the created resources during test execution. -
30
RAD Studio
Embarcadero
The Ultimate RAD environment loved by developers for quickly building high-performance native cross-platform applications in modern C++ and Delphi using powerful visual design tools and integrated toolchains. Smarter code navigation when refactoring. Auto code completion with Tab key. LSP awareness of Include files. Auto restart of LSP server. Class helper support. Array suggestions when assigning arrays. Inactive code highlighting in Code Editor. High-DPI support in the IDE, with full support for the latest 4k+ monitors, and cleaner and sharper fonts and icons throughout. Improved FMX High-DPI support for Windows and Desktop with a visibly superior desktop UI. Reduces the complexities of rapidly building and deploying a multi-tier turn-key enterprise REST API application server with Swagger support. -
31
Autostub
Torry Harris Business Solutions
AutoStub® is an essential tool to speed up API development. It can significantly reduce your build time by quickly designing, prototyping, documenting and testing APIs. AutoStub® creates a functional mock that allows developers to work with APIs before they are fully implemented. Available as a SaaS offering, for On-Premise deployments and in a hybrid model. Key Features Simulate ReST and SOAP services Input format - Swagger files for ReST, WSDL files for SOAP services Support for GET, POST, PUT, DELETE methods in ReST Create WSDL/Swagger 2.0 based mock services; generate dummy data for API testing Get an endpoint URL that can be used on a third party SOAP client tool Improves quality by facilitating functional testing Can handle multiple test scenarios together -
32
Rider
JetBrains
Fast & powerful, cross-platform .NET IDE, develop .NET, ASP.NET, .NET Core, Xamarin or Unity applications on Windows, Mac, Linux. JetBrains Rider is a cross-platform .NET IDE based on the IntelliJ platform and ReSharper. Rider supports .NET Framework, the new cross-platform .NET Core, and Mono based projects. This lets you develop a wide range of applications including .NET desktop applications, services and libraries, Unity games, Xamarin apps, ASP.NET, and ASP.NET Core web applications. Rider provides 2200+ live code inspections, hundreds of context actions and refactorings brought by ReSharper, and combines them with the IntelliJ platform's solid IDE features. Despite a heavy feature set, Rider is designed to be fast and responsive. As well as running and debugging multiple runtimes, Rider itself runs on multiple platforms, Windows, macOS, and Linux. Most of ReSharper's 60+ refactorings are already available in Rider, and its 450+ context actions are all there.Starting Price: $11.58 per month -
33
Adaptive Web Hosting
Adaptive Web Hosting
Adaptive Web Hosting has a proven track record of being one of the most reliable hosting providers in the world driven by customer satisfaction. We specialize in Managed WordPress hosting and shared hosting using Linux and Microsoft Windows servers. We have been hosting with these technologies since day one of their releases. The Adaptive Web Hosting stack is built upon Amazon Web Services. Utilizing AWS allows us to leverage a near-infinite amount of resources and advanced tooling to scale and support your WordPress, Linux, and ASP.NET requirements as demanded. One focus of Adaptive is ASP.NET and .NET Core. These technologies are often not provided by other hosting providers or if so, they are kept out-of-date. Our optimized ASP.NET Core Hosting Platform is for Developers and now includes .NET Core 6.0. A simple and flexible platform for building, deploying and hosting modern .NET Core apps.Starting Price: Under $3 per month -
34
k6
k6
The best developer experience for load testing. Open source load testing tool and SaaS for engineering teams. The k6 API and CLI are easy-to-use, flexible and powerful. Write tests in Javascript that mimic real-world scenarios. Automate your tests to ensure that your infrastructure and application remain performant. Configure SLOs in your k6 script to test the health of your services. Create tests faster with our browser recorder and converters (JMeter, Postman, Swagger). Extensive documentation, awesome community and first class support. No XML. No DSL. Just familiar scripting with ES6 JS.Starting Price: $99.00/month -
35
RapiDoc
RapiDoc
Free of any frameworks, setups, configs, build steps, or packaging. Can be used with any framework or just with vanilla Javascript. Style it to your heart's content. Change font, logo, colors, and theme. Inject external HTML or embed it into another HTML document. Create beautiful, customizable, interactive API documentation from OpenAPI specification. Use It just like any other HTML tag, Change its attribute using JavaScript and see it react to those changes. Basic knowledge of HTML is all that's required. Minimal dependencies, no runtime, and no virtual DOM ensure the lowest memory consumption, Just the native and raw speed of modern browsers. Loved by tech writers, designers, dev-ops, testers, and developers alike, due to its simplicity, interoperability, and powerful features. No special build-steps, runtime, or framework are required. Comes with built-in console to Try out the APIs. Supports authentication mechanism. No validation ensures you can test negative cases.Starting Price: Free -
36
Apitive Studio
Apitive
Design, Document, Mock and Publish your APIs in OpenAPI 3.0 specification. A sleek UI that allows its users to design REST APIs intuitively. Product managers can now be less or notdependent on engineering teams to create API designs; thus increasing time to market. Workbench includes a refined review tool that allows users to submit their API designs for peer reviews. Achieve enterprise wide interface design standardization with Apitive Studio by creating reusable data models and global policies. Share them across various products and provide uniformity in your API Designs and Implementations. API designs are only as good as its document. Auto generate complete API documentation as web pages that provides both technical and business documentation to its consumers. Apitive Studio also deploys the documentation as a portal at pre-defined location for consumption saving time and effort. Socialize your APIs with external consumers and get instant validation. -
37
Essential Objects
Essential Objects
Quickly extend your .NET application with PDF file generating/processing ability, or seamlessly integrate the popular Chromium browser engine both for UI or background task with extensive customization options such as custom resource loader and JavaScript extension. Not suitable for newer ASP.NET framework such as MVC, but perfect for maintaining legacy WebForm code/modules in a larger MVC application. Add browser capacity in Windows.Forms and WPF app simply by drag and drop. Extensive customization options for UI, resource loader and JavaScript interface. Support .Net Framework 2.0 and above, .NET Core 3.0 and above.Starting Price: $799 one-time payment -
38
LoopBack
LoopBack
A highly extensible Node.js and TypeScript framework for building APIs and microservices. A brand new LoopBack core to deliver great extensibility and flexibility written in TypeScript/ES2017. Create powerful APIs easily with a new creative experience for defining REST APIs and handling API requests/responses. A new, improved programming model with dependency injection and new concepts such as components, mixins, repositories, etc. make this the most extensible version yet. The LoopBack 4 CLI is a command-line interface that can scaffold a project or extension. The CLI provides the fastest way to get started with a LoopBack 4 project that adheres to best practices. LoopBack is a highly-extensible, open-source Node.js framework that enables you to create dynamic end-to-end REST APIs with little or no coding. Access data from major relational databases, MongoDB, SOAP, and REST APIs. Incorporate model relationships and access controls for complex APIs. -
39
ShipFast ASP.NET
ShipFast ASP.NET
ShipFast ASP.NET is a comprehensive SaaS boilerplate designed to expedite the development and deployment of web applications by providing essential components out of the box. Built with ASP.NET, it offers features such as user authentication via ASP.NET Core Identity, payment processing through Stripe integration, and responsive UI design utilizing Bootstrap 5. The platform includes modules for documentation, blogging, user and admin dashboards, and a contact form, all aimed at facilitating rapid product launches. ShipFast ASP.NET supports multiple databases via Entity Framework Core, including MySQL, MSSQL, PostgreSQL, CockroachDB, and SQLite, with a default SQLite configuration for quick startup. It also provides SEO optimization, email services, Dockerfile for containerization, and light and dark theme options. By offering these pre-configured components, ShipFast ASP.NET enables developers to focus on implementing core business ideas, thereby reducing time-to-market.Starting Price: $149 one-time payment -
40
FastReport .NET
Fast Reports
Full-featured reporting library for .NET Core, Blazor, .NET 5, .NET 6, ASP.NET, MVC and Windows Forms. With FastReport .NET, you can create application-independent .NET reports. In other words, FastReport .NET can be used as a standalone reporting tool. - Includes powerful visual report designer for creating and modifying the reports. Your application can run the designer from the code. - Includes online report designer for ASP.NET (only in Enterprise edition). - Connect to any database, use any of its tables or create queries. - Add dialogue form(s) to your report to prompt for parameters before running a report. - Using built-in script you can manage the interactions with dialogue form controls and perform complex data handling. - Finally, view the result and print or export it to many common document formats.Starting Price: $499.00/developer -
41
EasyXLS Excel Library
EU Outsourcing
Auxiliary tool that reads data and charts from a sheet of an xls or xlsx Excel file and displays the data in a gridview in ASP.NET. The source code is free open source if it is used among EasyXLS Excel library. Set Excel document formatting on-the-fly and see the required code. Import and export Excel file in C#, VB.NET windows applications or ASP.NET web pages. Convert between XLSX, XLS, XLSM, XLSB Excel file formats. -
42
Redocly
Redocly
Beautiful API documentation loved by teams and API consumers. At last, API documentation your whole team will be proud of. Publish beautiful API reference docs in seconds and style them in minutes. Tick every developer's favorite box right out of the box, three panels, a try-it console, generated code samples, SEO-friendly, even friendlier search. Nobody likes outdated docs and scope creep. Maintain API documentation with your favorite source control integrated with our cloud app workflows. We support them all, including on-premise and API management providers. Launch a developer portal in minutes reusing your API definitions as assets. Add tutorials, quick-start guides, and developer tooling with incredible customization. Validate, lint, and bundle multi-file API definitions. Write always on-spec OpenAPI documents. Plug in your API reference and customize every nook & cranny to wow your API consumers.Starting Price: $69 per month -
43
NoCodeBackend
NoCodeBackend
NoCodeBackend is a user-friendly, AI-powered platform that enables the rapid development of production-ready APIs without writing any code. Users can quickly configure databases, tables, and columns through an intuitive interface, with the system automatically generating corresponding API endpoints. NoCodeBackend's AI-assisted prompt technology allows users to describe their desired API functionality, and the system takes care of the rest, streamlining the development process. Additionally, NoCodeBackend offers automated documentation generation using Swagger, ensuring clear and comprehensive API documentation for a seamless developer experience. Starting Price: $49 per month -
44
CodeNOW
Stratox Cloud Native
CodeNOW is the DevOps platform for businesses that want the same excellence in software delivery as digital leaders without the large IT investments and the distraction from their core business. CodeNOW is listed by Gartner as a DevOps Value Stream Delivery Platform (DevOps VSDP), which Gartner sees entering the mainstream in 2023. CodeNOW is a cloud-native, cloud-agnostic DevOps VSDP that helps companies deliver natively scalable, highly available, resilient digital services that run safely on multiple clouds. CodeNOW integrates into a single cohesive product over 40 battle-tested open-source multi-point solutions (Gitlab, Swagger, Karate, SonarQube, Nexus, Tekton, ArgoCD, Kubernetes, Docker, Helm, Istio, Jenkins, Ansible, Terraform, and more) and covers the full software delivery life cycle. CodeNOW customers experience no vendor lock-in nor maintenance costs (PaaS model). They do more with the team they already have vs. recruiting of extra expensive, hard-to-find DevOps engineersStarting Price: €9 per month -
45
Paw
Paw
Paw is a full-featured HTTP client that lets you test and describe the APIs you build or consume. It has a beautiful native macOS interface to compose requests, inspect server responses, generate client code and export API definitions. Building great software is hard, and developer tools should be helping you without the headaches. Paw is exclusively built for macOS, so you should easily get the hang of it. Every feature is built intuitively with quick mouse or keyboard shortcut access. Visually build your API requests and describe each parameter through textual descriptions, typing, and constraints. Paw natively supports JSON Schema and can import and generate fully compliant Swagger, RAML, and API Blueprint description files. Keep everyone in sync with Paw for Teams. Create a team, invite your team and everyone gets seamlessly the updates.Starting Price: $10 per month -
46
OpenTelemetry
OpenTelemetry
High-quality, ubiquitous, and portable telemetry to enable effective observability. OpenTelemetry is a collection of tools, APIs, and SDKs. Use it to instrument, generate, collect, and export telemetry data (metrics, logs, and traces) to help you analyze your software’s performance and behavior. OpenTelemetry is generally available across several languages and is suitable for use. Create and collect telemetry data from your services and software, then forward them to a variety of analysis tools. OpenTelemetry integrates with popular libraries and frameworks such as Spring, ASP.NET Core, Express, Quarkus, and more! Installation and integration can be as simple as a few lines of code. 100% Free and Open Source, OpenTelemetry is adopted and supported by industry leaders in the observability space. -
47
List & Label
combit
List & Label is a report generator for software developers to integrate reporting functions in their web, cloud and desktop applications. Made for development environments such as .NET, C#, Delphi, C++, ASP.NET, ASP.NET MVC, .NET Core etc. It is seamless to integrate, supports a huge variety of data sources and extends applications with extensive print, export and preview functions. With the WYSIWYG Report Designer, developers or end users create or edit different print templates for printing information that originates either from a database or another data source. In the Designer, you then have all the data at your disposal to prepare it for printing in different ways. The additionally included and entirely browser-based Web Report Designer for ASP.NET MVC offers more flexibility in development and is independent from printer drivers. Reports for web applications can be designed anywhere at any time in the browser of your choice.Starting Price: €650/license -
48
Duende IdentityServer
Duende
IdentityServer is a flexible and standards-compliant OpenID Connect and OAuth 2.0 framework for ASP.NET Core, offering full control over UI, UX, business logic, and data. IdentityServer is officially certified by the OpenID Foundation and implements over a dozen protocols and standards from the OpenID Foundation and IETF working groups. It supports unlimited hosting options, allowing deployment on-premises, in the cloud, behind a VPN, on Windows, Linux, Docker, or Kubernetes. Duende Software also offers additional products such as IdentityServer for Redistribution and a Backend for Frontend (BFF) security framework. Comprehensive documentation and training resources are available to support developers in implementing these solutions. Being fully standards-compliant is very important to us, and we want to give you access to every aspect of the OAuth and OpenID Connect protocol family.Starting Price: $1,500 per year -
49
Mockoon
Mockoon
Mockoon offers tons of features that makes API mocking a breeze. Get Mockoon latest version and start creating mock APIs! Create an unlimited number of mock API with unlimited number of routes and run them in parallel. Use the CLI to run your mock APIs in any headless or automated environment: servers, CI, GitHub Actions, etc. Mock API import / export with Swagger/OpenAPI format support. Serve multiple rules-triggered or random responses with any headers body, or HTTP status codes. Serve your mock API over TLS with self-signed certificate. Add any response headers to your routes and mock API. With auto-completion. Add latency at environment or route level or even both. All incoming requests and outgoing responses are logged for easier debugging. Redirect all non-defined routes to the specified host with Mockoon's proxy mode. File serving with automatic mime type detection and templating support. -
50
ASP.NET
Microsoft
Blazor is a feature of ASP.NET for building interactive web UIs using C# instead of JavaScript. Blazor gives you real .NET running in the browser on WebAssembly. .NET is a developer platform made up of tools, programming languages, and libraries for building many different types of applications. ASP.NET supports industry standard authentication protocols. Built-in features help protect your apps against cross-site scripting (XSS) and cross-site request forgery (CSRF). ASP.NET provides a built-in user database with support for multi-factor authentication and external authentication with Google, Twitter, and more.Starting Price: Free
