Postman vs Katalon
Side-by-side from the Top 11 ranking of The 11 Best API Testing Tools (2026). Last verified July 14, 2026.
The short answer
Postman ranks higher on Top 11 (#1 vs #6) for Backend engineers, QA automation teams, and platform teams validating REST, GraphQL, gRPC, and SOAP APIs. The most complete option for teams that need authoring, automation, and CI in one place.
At a glance
| Postman | Katalon | |
|---|---|---|
| Top 11 rank | #1 / The 11 Best API Testing Tools (2026) | #6 / The 11 Best API Testing Tools (2026) |
| Score (out of 9.4) | 9.2 | 8 |
| Best for | All-round team API testing | Unified API, web, and mobile QA |
| Pricing | $$ (Free tier, teams ~$14-$29/user/mo) | $$$ (Free tier, paid from ~$175/user/mo) |
| HQ | San Francisco, USA | Atlanta, USA |
| Founded | 2014 | 2016 |
Postman
The most complete option for teams that need authoring, automation, and CI in one place.
www.postman.com/Methodology and scoring weights live at /methodology. No vendor pays for placement — see about.