Swagger / OpenAPI Viewer

Browse API endpoints, parameters, request bodies, and response schemas from your OpenAPI or Swagger specification.

API Title

Demo API

Endpoints Detected

HTTP operations

Specification

OpenAPI 3.0.3

JSON and YAML supported

API Specification

Paste your document or upload a .json, .yaml, or .yml file.

openapi: 3.0.3
info:
  title: Demo API
  version: 1.0.0
  description: A sample API for testing the viewer.
servers:
  - url: https://api.example.com
paths:
  /users:
    get:
      summary: Get all users
      tags:
        - Users
      responses:
        "200":
          description: Users retrieved successfully
    post:
      summary: Create a user
      tags:
        - Users
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                name:
                  type: string
                email:
                  type: string
                  format: email
      responses:
        "201":
          description: User created
  /users/{id}:
    get:
      summary: Get a user by ID
      tags:
        - Users
      parameters:
        - name: id
          in: path
          required: true
          schema:
            type: integer
      responses:
        "200":
          description: User details
        "404":
          description: User not found

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About this tool

This tool renders documentation from the supplied specification. It performs basic structural checks but does not guarantee complete OpenAPI schema validation. The Try it out feature is disabled by default, so browsing the documentation does not send API requests unexpectedly.