Postman vs Karate

From $14 per user/month (Basic, billed annually)

Free tier available

Free tier is generous for individuals. Costs come from collaborator seats and monitoring/mock-call volume, and enterprise plans jump sharply.

Open source core; Karate Labs sells a commercial IDE and enterprise support separately.

Free plan for individuals and small teams with limited collection runs, mock calls and monitors.

The open-source framework is complete and free.

Category standard

Postman, Inc. · since 2012

Widely used

Karate Labs · since 2017

• Near-universal adoption — collections are a lingua franca between teams and vendors.
• Covers design, mocking, testing, documentation and monitoring in one place.
• Newman makes any collection runnable in CI without rewriting it.

• One DSL covers functional API tests, mocks and load tests — rare consolidation.
• Powerful JSON matching that removes most assertion boilerplate.
• Non-Java testers can write meaningful tests.

• Cloud-first sync raised real concerns for teams handling sensitive API credentials; the offline story has been repeatedly reduced.
• Collections stored in the vendor cloud rather than your repo make code review and branching awkward.
• The desktop app has grown heavy, and per-seat costs add up on large teams.

• The custom DSL is another language to learn and cannot be refactored by an IDE.
• Debugging complex scenarios is harder than in plain code.
• The UI automation feature is far behind dedicated browser tools.

Teams that want one tool covering the whole API lifecycle and value ecosystem ubiquity.

Teams wanting API testing and mocking in one tool, including non-Java testers.