Insomnia vs Postman

Verdict: Insomnia's focused, clean interface is preferred by developers who value simplicity.

Verdict: Postman's collaboration features are significantly more comprehensive and mature.

Verdict: Postman's automated testing ecosystem is far more mature and integrated.

Verdict: Insomnia's GraphQL support is more polished and developer-friendly.

Verdict: Postman's auto-generated, hosted API documentation is a significant advantage.

Verdict: Postman's mock servers enable parallel frontend/backend development.

Verdict: Insomnia is lighter and faster than Postman, especially with large collections.

Verdict: Insomnia's open-source nature provides transparency and community trust.

Insomnia → Postman

Postman can import Insomnia collections directly (File → Import → Insomnia). Your requests, environments, and folder structure will transfer. You'll gain access to test scripting, collection runner, documentation generation, monitoring, and team collaboration. Spend time learning Postman's test scripting (pm.test, pm.response) and collection variables—they're the features that differentiate Postman most from Insomnia.

Postman → Insomnia

Export your Postman collection as JSON and import it into Insomnia (Application → Import). Basic requests and environments will transfer, but test scripts, monitors, and mock servers won't—those are Postman-specific features. If you relied heavily on test scripting, you'll need to find alternative testing approaches. The trade-off is a cleaner, faster interface for daily API testing.