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OpenAPI 3 Generator

Ch 265.2of 28 API Documentation Tools
  1. 1Runs onLinux
  2. 2CostsNot stated by the maker
  3. 3OpenAPI importYes
  4. 4Hosting modelself hosted
3 lines stated Written from the maker's own pages: github.com
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The OpenAPI 3 Generator homepage

Overview

OpenAPI 3 Generator is ranked #26 of 28 in API documentation tools on Specifiction. It runs on Linux.

Compared on API documentation tools

OpenAPI import
Yesgithub.com
Hosting model
self_hostedgithub.com

Facts

Purpose
OpenAPI 3 Generator uses an OpenAPI 3 definition to generate code, documentation, and other outputs.github.com · 4 Oct 2026
CLI
The tool can be installed globally with npm and run from the command line as `og`.github.com · 4 Oct 2026
Input
The CLI accepts an OpenAPI file or URL and a template as arguments.github.com · 4 Oct 2026
Requirements
The project lists Node.js v7.6 or later as a requirement.github.com · 4 Oct 2026
Templates
Templates can contain static files, Handlebars templates, and path templates that generate one file per OpenAPI path.github.com · 4 Oct 2026
Customization
Custom templates can define Handlebars helpers in a `.helpers` directory and partials in a `.partials` directory.github.com · 4 Oct 2026
Template data
Templates receive the OpenAPI specification and an `openapi.endpoints` value containing first-level endpoints.github.com · 4 Oct 2026
Input formats
The README shows an OpenAPI definition in YAML format as an example input.github.com · 4 Oct 2026
License
The repository provides the software under the Apache License, Version 2.0.github.com · 4 Oct 2026
Dependencies
The package lists Handlebars, YAML parsing, OpenAPI validation, and Markdown generation dependencies.github.com · 4 Oct 2026
Maintainers
The README names Fran Méndez and Richard Klose as authors.github.com · 4 Oct 2026
Distribution
The package metadata defines `og` and `openapi3-generator` as executable commands.github.com · 4 Oct 2026

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Where it ranks on Specifiction

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Sources