npm98Exceptionalhealth index
C#★ 3,786Jul 20, 2026
npm98Exceptionalhealth index
JavaScript · TypeScript★ 9,461↓ 49.5K/moAug 28, 2026
npm · Packagist98Exceptionalhealth index

swagger-api/swagger-uiSwagger UI is a collection of HTML, JavaScript, and CSS assets that dynamically generate beautiful documentation from a Swagger-compliant API.
JavaScript★ 29K↓ 50.3M/moAug 5, 2026
npm97Exceptionalhealth index

orval-labs/orvalorval 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. 🍺
TypeScript★ 6,401↓ 61.5M/moAug 28, 2026
npm96Exceptionalhealth index
JavaScript★ 2,694Aug 27, 2026
PyPI95Exceptionalhealth index
marshmallow-code/apispecA pluggable API specification generator. Currently supports the OpenAPI Specification (f.k.a. the Swagger specification)..
Python★ 1,218Jul 28, 2026
Go · Maven · npm +294Exceptionalhealth index
TypeScript · Swift · Python★ 272Jul 17, 2026
npm94Exceptionalhealth index

stoplightio/spectralA 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.
TypeScript★ 3,172↓ 78M/moAug 4, 2026
npm92Excellenthealth index
readmeio/rdmeReadMe's official command-line interface (CLI) and GitHub Action 🌊
JavaScript · TypeScript★ 145↓ 452.6K/moJul 23, 2026
Go88Excellenthealth index
Go★ 1,293Jul 27, 2026
Go88Excellenthealth index
pb33f/libopenapilibopenapi is a fully featured, high performance OpenAPI 3.2, 3.1, 3.0, Overlays and Arazzo parser, library, validator and toolkit for go applications.
Go★ 859Jul 18, 2026
npm88Excellenthealth index

readmeio/oasComprehensive tooling for working with OpenAPI definitions.
TypeScript★ 398↓ 14.1M/moAug 27, 2026
npm · Go84Excellenthealth index
daveshanley/vacuumvacuum is the worlds fastest and most versatile OpenAPI, AsyncAPI & JSON Schema linter, docs generator and toolkit. It tears through API specs at light speed. 100% compatible with Spectral rulesets, and OpenAPI 3.0, 3.1 and 3.2
Go★ 1,103↓ 169.8K/moJul 19, 2026
PyPI83Excellenthealth index
Python★ 2,847Jul 18, 2026
npm81Excellenthealth index
JavaScript★ 350↓ 46.6K/moJul 18, 2026
PyPI · npm81Excellenthealth index

axnsan12/drf-yasgAutomated generation of real Swagger/OpenAPI 2.0 schemas from Django REST Framework code.
Python · JavaScript★ 3,544Aug 8, 2026
TypeScript★ 47Jul 25, 2026
npm · Go69Goodhealth index
pb33f/printing-pressAgentic First OpenAPI Documentation. Works 100% offline, straight from disk, shareable or publisable to any static host. AI and agent output built in, Built in API Catalog generation.
Go★ 11↓ 1,301/moJul 17, 2026
Java★ 13Aug 28, 2026
NuGet59Moderatehealth index
C# · RAML★ 4Sep 6, 2026
Swift · TypeScript★ 4Jul 17, 2026
alpdr/gindocnicAn OpenAPI 3.1 specification generator for Gin Web Framework
Go★ 0Jul 24, 2026
Python · JavaScript · HTML★ 3,742Jul 21, 2026
Ruby★ 5Jul 25, 2026