SuperTest vs SoapUI / ReadyAPI

Free and open source

From $829 per year (indicative, ReadyAPI Test module)

Free and open source. You pay in engineering time and CI minutes.

ReadyAPI is licensed per module — Test, Performance, Virtualization — and buying all three multiplies the cost.

Everything, self-hosted

SoapUI open source is free and covers SOAP and REST functional testing.

Widely used

OSS community · since 2014

Widely used

SmartBear · since 2005

• Fast: no network, no separate server process, no port conflicts in CI.
• Tiny API you can learn in ten minutes.
• Works with whichever runner you already use.

• Unmatched SOAP, WSDL and JMS support for legacy enterprise integration work.
• ReadyAPI bundles functional, security, load and virtualisation in one product family.
• Groovy scripting escape hatch for anything the GUI cannot express.

• Node.js only, and only for services you host yourself.
• In-process testing skips the real network stack, proxies and load balancer.
• No environment management or collection concept for cross-service flows.

• Dated Java desktop UI that feels heavy next to modern clients.
• Project files are XML and merge badly in version control.
• Modular licensing gets expensive fast.

Node.js API projects testing their own routes in the unit/integration layer.

Enterprises testing SOAP services, message queues and legacy integration layers.