Swagger Editor lets you edit Swagger API specifications in YAML inside your browser and to preview documentations in real time. Valid Swagger JSON descriptions can then be generated and used with the full Swagger tooling (code generation, documentation, etc).
Download the latest release (v2.9.7) and serve the static files via your HTTP server. If you don't have an HTTP server, you can use http-server
Node.js module.
npm install -g http-server
wget https://github.com/swagger-api/swagger-editor/releases/download/v2.9.7/swagger-editor.zip
unzip swagger-editor.zip
http-server swagger-editor
Make sure you have Node.js installed.
git clone https://github.com/swagger-api/swagger-editor.git
cd swagger-editor
npm start