Postman Overview
Postman is a Freemium development tool for Windows, macOS, and Linux maintained by Postman Inc. The Postman offline installer is a self-contained desktop package with the application files bundled locally, so installation can be prepared once and repeated on compatible machines without using the web download page each time. Postman delivers a focused API development workspace for building requests, managing collections, testing APIs, scripting workflows, and sharing environments across teams. The application supports REST, GraphQL, gRPC, WebSocket, and Socket.IO protocols, with built-in support for OAuth 2.0, AWS Signature, NTLM, and Bearer Token authentication. Teams use Postman to document APIs, generate code snippets in 20+ languages, run automated test suites with Newman CLI integration, and monitor production endpoints for uptime and performance. To install offline: download the matching Postman desktop package from the official direct endpoints below, transfer it to USB or a deployment share if needed, and run it on any compatible Windows, macOS, or Linux machine.
