openapi3

usebruno/bruno

Opensource IDE For Exploring and Testing API's (lightweight alternative to Postman/Insomnia)

swagger-api/swagger-ui

Swagger UI is a collection of HTML, JavaScript, and CSS assets that dynamically generate beautiful documentation from a Swagger-compliant API.

OpenAPITools/openapi-generator

OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec (v2, v3)

Redocly/redoc

📘 OpenAPI/Swagger-generated API Reference Documentation

swagger-api/swagger-codegen

swagger-codegen contains a template-driven engine to generate documentation, API clients and server stubs in different languages by parsing your OpenAPI / Swagger definition.

scalar/scalar

Scalar is an open-source API platform:　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　🌐 Modern Rest API Client　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　📖 Beautiful API References　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　✨ 1st-Class OpenAPI/Swagger Support

swagger-api/swagger-editor

Swagger Editor

mockoon/mockoon

Mockoon is the easiest and quickest way to run mock APIs locally. No remote deployment, no account required, open source.

oapi-codegen/oapi-codegen

Generate Go client and server boilerplate from OpenAPI 3 specifications

openapi-ts/openapi-typescript

Generate TypeScript types from OpenAPI 3 specs

swagger-api/swagger-core

Examples and server integrations for generating the Swagger API Specification, which enables easy access to your REST API

microsoft/typespec

stoplightio/prism

Turn any OpenAPI2/3 and Postman Collection file into an API server with mocking, transformations and validations.

xiaoymin/knife4j

Knife4j is a set of Swagger2 and OpenAPI3 All-in-one enhancement solution

APIs-guru/openapi-directory

🌐 Wikipedia for Web APIs. Directory of REST API definitions in OpenAPI 2.0/3.x format

AndrewWalsh/openapi-devtools

Browser extension that generates API specs for any app or website

apiaryio/dredd

Language-agnostic HTTP API Testing Tool

springdoc/springdoc-openapi

Library for OpenAPI 3 with spring-boot

microsoft/kiota

OpenAPI based HTTP Client code generator

danielgtaylor/huma

Huma REST/HTTP API Framework for Golang with OpenAPI 3.1

hey-api/openapi-ts

🌀 OpenAPI to TypeScript code generator. Generate API clients, SDKs, validators, and more.

jcrist/msgspec

A fast serialization and validation library, with builtin support for JSON, MessagePack, YAML, and TOML

getkin/kin-openapi

OpenAPI 3.0 (and Swagger v2) implementation for Go (parsing, converting, validation, and more)

stoplightio/spectral

A flexible JSON/YAML linter for creating automated style guides, with baked in support for OpenAPI (v3.1, v3.0, and v2.0), Arazzo v1.0, as well as AsyncAPI v2.x.

tiangolo/uvicorn-gunicorn-fastapi-docker

Docker image with Uvicorn managed by Gunicorn for high-performance FastAPI web applications in Python with performance auto-tuning.

tfranzel/drf-spectacular

Sane and flexible OpenAPI 3 schema generation for Django REST framework.

swagger-api/swagger-js

Javascript library to connect to swagger-enabled APIs via browser or nodejs

stoplightio/elements

Build beautiful, interactive API Docs with embeddable React or Web Components, powered by OpenAPI and Markdown.

google/gnostic

A compiler for APIs described by the OpenAPI Specification with plugins for code generation and other API support tasks.

ogen-go/ogen

OpenAPI v3 code generator for go

contiamo/restful-react

A consistent, declarative way of interacting with RESTful backends, featuring code-generation from Swagger and OpenAPI specs 🔥

rapi-doc/RapiDoc

RapiDoc -WebComponent for OpenAPI Spec

OpenAPITools/openapi-generator-cli

A node package wrapper for https://github.com/OpenAPITools/openapi-generator

openapi-generators/openapi-python-client

Generate modern Python clients from OpenAPI

microcks/microcks

The open source, cloud native tool for API Mocking and Testing. Microcks is a Cloud Native Computing Foundation sandbox project 🚀