Swagger Editor

Design and document REST APIs with the OpenAPI specification.

Overview

Swagger Editor is a browser-based editor for writing API definitions in the OpenAPI Specification (YAML or JSON). As you type, it validates your definition and shows a live, interactive preview of the documentation.

Defining the API first lets frontend and backend teams agree on the contract early, and the same file can be used to generate client code, server stubs and documentation.

Where it is used

  • Designing a new REST API
  • Documenting an existing API
  • Sharing an API contract with partners
  • Teaching REST concepts

Run Swagger Editor with Docker

docker run -p 8081:8080 swaggerapi/swagger-editor

# open http://localhost:8081
openapi: 3.0.3
info:
  title: Student API
  version: 1.0.0
paths:
  /students:
    get:
      summary: List students
      responses:
        "200":
          description: OK

What you will cover

The key topics and features of Swagger Editor

Live Editing

Write OpenAPI in YAML with instant validation.

Interactive Preview

See the generated documentation side by side.

Code Generation

Generate clients and server stubs with OpenAPI tooling.

Validation

Catch errors in the definition early.

API-First Design

Agree on the contract before writing code.

Spring Boot Friendly

Works well with springdoc-openapi documentation.