Postman is the world's leading API development platform. It lets developers test, document, mock and automate APIs in a unified workflow.
Key features
- HTTP requests — send GET/POST/PUT/DELETE requests with headers, body, params and auth (Bearer, API Key, OAuth).
- Collections — organize requests by project/API. Share with the team.
- Environments — different variables per environment (dev/staging/prod).
- Automated tests — write JavaScript assertions on responses.
- Mock Servers — create a mocked server for frontend dev before the backend is ready.
- Documentation — API documentation that auto-updates from the collection.
- Monitoring — periodic checks that your API still works.
- CLI (Newman) — run tests in CI/CD.
Common uses: manual API testing during dev, public API documentation, automated tests in pipelines, debugging integrations, collaboration with frontend teams.
Postman is free for basic use. Paid plans (starting at $14 per user per month) unlock advanced collaboration, multiple mock servers, enterprise management and security.
Popular alternatives: Insomnia, Bruno (open source), HTTPie. But Postman remains the industry standard.
—BeeUONO
