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NSwag Alternatives
Similar projects and alternatives to NSwag
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InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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openapi-generator
OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec (v2, v3)
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swagger-ui
Swagger UI is a collection of HTML, JavaScript, and CSS assets that dynamically generate beautiful documentation from a Swagger-compliant API.
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
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Refit
The automatic type-safe REST library for .NET Core, Xamarin and .NET. Heavily inspired by Square's Retrofit library, Refit turns your REST API into a live interface.
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orval
orval is able to generate client with appropriate type-signatures (TypeScript) from any valid OpenAPI v3 or Swagger v2 specification, either in yaml or json formats. 🍺
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autorest
OpenAPI (f.k.a Swagger) Specification code generator. Supports C#, PowerShell, Go, Java, Node.js, TypeScript, Python
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RestEase
Easy-to-use typesafe REST API client library for .NET Standard 1.1 and .NET Framework 4.5 and higher, which is simple and customisable. Inspired by Refit
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FileHelpers
The FileHelpers are a free and easy to use .NET library to read/write data from fixed length or delimited records in files, strings or streams
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openapi-code-generator
A code generation tool for openapi 3 / 3.1 specifications written in typescript, primarily aimed at generating typescript clients and server stubs. Other target languages may be added in future.
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sig-moonwalk
Version 4.x of the OpenAPI Specification is known as "Moonwalk," and has a goal to ship in 2024.
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dapr
Dapr is a portable runtime for building distributed applications across cloud and edge, combining event-driven architecture with workflow orchestration.
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smithy
Smithy is a protocol-agnostic interface definition language and set of tools for generating clients, servers, and documentation for any programming language.
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a better NSwag alternative or higher similarity.
NSwag discussion
NSwag reviews and mentions
Posts with mentions or reviews of NSwag.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2025-03-06.
- Criando Web APIs modernas, autônomas e rastreáveis com .Net Core utilizando arquitetura de microsserviços – Parte 2
- Criando Web APIs modernas, autônomas e rastreáveis com .Net Core utilizando arquitetura de microsserviços – Parte 1
- NET9: Swagger no compatible [Alternativas]
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Top 8 Swagger Codegen Alternatives
NSwag is a .NET-focused tool that provides capabilities for generating API clients and server stubs directly from OpenAPI specifications. It integrates seamlessly with ASP.NET Core, making it an excellent choice for .NET developers.
- NSwag: OpenAPI/Swagger Toolchain for .NET, Asp.net Core and TypeScript
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Kiota: OpenAPI-Based HTTP Client Code Generator
we are using the nswag tolchain (https://github.com/RicoSuter/NSwag) for generating c# and typescript clients based on openapi specs generated by swashbuckle. you can tweak some details using config file too.
it works quite well and even has integration in msbuild to avoid manual cli steps.
- Tipar automáticamente Swagger/OpenAPI endpoints con NSwag
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TypeSpec: A New Language for API-Centric Development
https://github.com/RicoSuter/NSwag
There is no need to be facetious solutions like these exist for many platforms and ecosystems out there.
With best regards.
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This week I released v2.1 of my text-templating library Weave that now uses Source Generators by default.
I'm mostly using it for C# API client generation from backend code - sort of similar to what a tool like NSwag Studio will do. I think NTypewriter has more flexibility though, and having a live view with the VS plugin makes development quick.
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OpenAPI v4 Proposal
NSwag does a wonderful job of generating TypeScript clients from OpenAPI specs. Definitely give it a shot before killing your current setup.
https://github.com/RicoSuter/NSwag (It sucks in any OpenAPI yml, not just ones from Swashbuckle/C#)
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A note from our sponsor - InfluxDB
www.influxdata.com | 14 Jun 2025
Stats
Basic NSwag repo stats
47
7,065
8.7
4 days ago
RicoSuter/NSwag is an open source project licensed under MIT License which is an OSI approved license.
The primary programming language of NSwag is C#.
Sponsored
InfluxDB – Built for High-Performance Time Series Workloads
InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
www.influxdata.com