Side by side
Postman vs SoapUI
Both stand on api clients. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan ExtensionLinuxMac+2
Postman combines API creation, testing, documentation, and monitoring in one platform, with a free plan and paid options. Check plan availability and the annual billing terms before choosing a tier.
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Free plan Open source APILinuxMac+2
SoapUI Open Source offers API testing, mocking, and command-line automation across major listed protocols. The product description distinguishes its basic functional and performance scope from security testing associated with ReadyAPI.
Visit SoapUIThe facts
| Postman | SoapUI | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Yes |
| Runs on | Extension, Linux, Mac, Web, Windows | API, Linux, Mac, Self-hosted, Windows |
| Lowest paid plan | Solo: $9 a month | ReadyAPI API Functional & Security Testing: $1,069 a year |
| Plans published | 4 | 5 |
| Maker | Postman | Not published |
| Website | postman.com | soapui.org |
| On api clients | #5 of 38 | #1 of 38 |
Postman: what it does well
- API client supports multiple protocols and built-in authentication.
- Mock servers and API specification support are included.
- Testing covers performance, regression, and end-to-end workflows.
- Integrates with Jira, GitHub, Slack, and other tools.
What to know first
- Basic and Professional plans are unavailable to new customers.
- Solo is $9 a month, billed annually.
- Premium Support is an Enterprise-only add-on.
SoapUI: what it does well
- Supports REST, SOAP, GraphQL, and JMS.
- Creates functional and regression tests.
- Can mock SOAP and REST APIs.
- Includes named build and test-tool integrations.
- Runs on Windows, Mac, and Linux/Unix.
What to know first
- Open Source is described for basic functional and performance testing.
- Security testing is associated with expanded ReadyAPI capabilities.
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