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SoapUI

soapui.org

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Spec score 9.5 #1 of 38 in API clients

What it is

SoapUI is an open-source tool for testing REST, SOAP, and GraphQL web services. It supports drag-and-drop creation of functional and regression tests, assertions, and data-driven tests, and can create service mocks from WSDL. The listed protocols also include JMS and SOAP/WSDL. Functional tests can be extended into load testing, including runs from command-line tools. Named automation integrations include Maven, Hudson, Bamboo, JUnit, and Ant, and SoapUI can run from other CI tools. It can configure incoming and outgoing WS-Security, including encryption, signatures, SAML, keystores, and truststores. SoapUI is described as cross-platform for Windows, Mac, and Linux/Unix. The open-source edition is listed for basic functional and performance testing; security testing appears among expanded capabilities associated with ReadyAPI. The listed SoapUI Open Source plan is free and includes API testing, mocking, and command-line automation. SmartBear describes it as a starting point for developers and testers, with support and a community forum linked on the site.

Spec sheet

What it does
SoapUI is a desktop tool for interactive and automated testing of SOAP, REST and HTTP web services.Read 15 Oct 2026 · soapui.org
Purpose
SoapUI is an open source API testing tool for testing REST, SOAP, and GraphQL web services.Read 3 Oct 2026 · soapui.org
Free plan
YesRead 21 Sep 2026 · soapui.org
Integrations
ReadyAPI documentation describes command-line and native Jenkins integration, plus Maven-based automation.Read 15 Oct 2026 · soapui.org
API definitions
SoapUI Open Source 5.7.0 and later imports Swagger/OpenAPI definitions and connects to SwaggerHub without extra plugins.Read 15 Oct 2026 · soapui.org
API mocking
MockServices can be generated from WSDL and run locally to simulate client behavior.Read 15 Oct 2026 · soapui.org
Automation integrations
The open source feature page names Maven, Hudson, Bamboo, JUnit, and Ant integrations and says SoapUI can run from other CI tools.Read 3 Oct 2026 · soapui.org
CI runner
The bundled testrunner.bat/.sh executes tests from the command line and can emit JUnit-compatible reports.Read 15 Oct 2026 · soapui.org
Company founded
SmartBear's company page says Jason Cohen started the company in 2003.Read 15 Oct 2026 · smartbear.com
Company headquarters
LinkedIn lists SmartBear headquarters at 450 Artisan Way, Somerville, Massachusetts.Read 15 Oct 2026 · linkedin.com
Company legal name
Crunchbase lists the legal name as SmartBear Software Inc.Read 15 Oct 2026 · crunchbase.com
Company size
LinkedIn lists SmartBear as a privately held company with 501–1,000 employees.Read 15 Oct 2026 · linkedin.com
Docker and environments
TestEngine documentation says tests can run in parallel on Docker, VMs, Windows, macOS and Linux.Read 15 Oct 2026 · soapui.org
Documentation depth
The documentation includes installation, SOAP/WSDL, REST, OpenAPI, mocking, security, automation, FAQs and generated Java API documentation.Read 15 Oct 2026 · soapui.org
Functional testing
The open-source edition supports drag-and-drop functional test creation and assertions.Read 15 Oct 2026 · soapui.org
GraphQL support
YesRead 21 Sep 2026 · soapui.org
Latest release
SoapUI Open Source 5.10.0 was released June 2, 2026 and included dependency updates addressing multiple CVEs.Read 15 Oct 2026 · soapui.org
Licence
The SoapUI source distribution is licensed under the European Union Public Licence (EUPL) version 1.1.Read 15 Oct 2026 · github.com
Limit: Capterra reviewers
Reported issues include a difficult beginner experience, slow loading with heavy projects, cramped XML text and occasional timeouts.Read 15 Oct 2026 · capterra.com
Limit: official FAQ
The FAQ identifies WSDL authoring and WS-Security support as missing features in the referenced SoapUI version.Read 15 Oct 2026 · soapui.org
Limit: Software Advice pricing
The listing shows commercial pricing starting at $599 per feature per year.Read 15 Oct 2026 · softwareadvice.com
Limit: TrustRadius reviewers
Complaints include a clunky or complex interface, weak tutorials, performance problems, no free-version team collaboration and paid features.Read 15 Oct 2026 · trustradius.com
Load testing
The feature page describes load testing as an extension of functional tests and says tests can run from command-line tools.Read 3 Oct 2026 · soapui.org
Maker and founding
SmartBear says it was started by Jason Cohen in 2003 and lists its global headquarters at 450 Artisan Way, Somerville, Massachusetts.Read 3 Oct 2026 · smartbear.com
Mocking
SoapUI can create service mocks from WSDL and supports mocking SOAP and REST APIs.Read 3 Oct 2026 · soapui.org
Notable release news
The 5.10.0 release added a combined macOS x64/ARM archive, disabled Mixpanel usage analytics and refreshed bundled security libraries.Read 15 Oct 2026 · github.com
OpenAPI limitation
Open-source SoapUI supports Swagger/OpenAPI 2.0 only.Read 15 Oct 2026 · soapui.org
Ownership
Crunchbase lists SmartBear as acquired by Francisco Partners and shows Vista Equity Partners among its investors.Read 15 Oct 2026 · crunchbase.com
Performance testing
Existing functional tests can be extended into load tests for SOAP/WSDL services.Read 15 Oct 2026 · soapui.org
Praise: Capterra reviewers
Reviewers repeatedly praise broad SOAP/REST testing, automation, load testing and an approachable interface.Read 15 Oct 2026 · capterra.com
Praise: TrustRadius reviewers
Users praise fast SOAP/REST testing, authentication handling, simulations, debugging and the completeness of the free edition.Read 15 Oct 2026 · trustradius.com
Protocol support
The product pages list SOAP/WSDL, REST, GraphQL and JMS protocol support for SoapUI.Read 15 Oct 2026 · soapui.org
Protocols
The product page lists SOAP/WSDL, REST, GraphQL, and JMS protocol support.Read 3 Oct 2026 · soapui.org
Rating on Capterra
4.5 out of 5 from 168 reviews.Read 15 Oct 2026 · capterra.com
Rating on Gartner Peer Insights
4.6 out of 5 from 0 reviews shown on the opened SmartBear listing.Read 15 Oct 2026 · gartner.com
Rating on Software Advice
4.5 out of 5 from 168 reviews.Read 15 Oct 2026 · softwareadvice.com
Rating on SourceForge
4.4 out of 5 from 43 reviews.Read 15 Oct 2026 · sourceforge.net
Rating on TrustRadius
8.3 out of 10 from 31 reviews and ratings.Read 15 Oct 2026 · trustradius.com
Scripting
SoapUI scripting supports Groovy and JavaScript, with API documentation available for script objects and methods.Read 15 Oct 2026 · soapui.org
Security governance
SmartBear states that its security program aligns with SOC 2, ISO/IEC 27001, GDPR, CCPA and NIST CSF, with encryption in transit and at rest.Read 15 Oct 2026 · smartbear.com
Security testing
SoapUI provides security tests and scans for common service vulnerabilities.Read 15 Oct 2026 · soapui.org
Security testing scope
The download page presents security testing among the expanded capabilities associated with ReadyAPI, while SoapUI Open Source is listed for basic functional and performance testing.Read 3 Oct 2026 · soapui.org
Source build
The public repository builds with OpenJDK 17, Maven 3.6.3 or later and Git 1.8 or later.Read 15 Oct 2026 · github.com
Support resources
The SoapUI site links to SmartBear Support and a community forum.Read 3 Oct 2026 · soapui.org
Supported platforms
SoapUI is described as cross-platform for Windows, Mac, and Linux/Unix.Read 3 Oct 2026 · soapui.org
System requirements
Current open-source requirements include a 64-bit processor, 1 GB RAM, 300 MB disk and Java 16 on Windows, Linux or macOS.Read 15 Oct 2026 · soapui.org
Who it is for
SmartBear describes SoapUI as a starting point for API testing for developers and testers.Read 3 Oct 2026 · soapui.org
WS-Security
SoapUI can configure outgoing and incoming WS-Security, including encryption, signatures, SAML, keystores, and truststores.Read 3 Oct 2026 · soapui.org

Plans and prices

ReadyAPI trial Free 14 days Full access · no credit card required Read 15 Oct 2026 · smartbear.com
SoapUI Open Source Free REST/SOAP/GraphQL testing · functional, security, load and mocking basics · Windows, macOS and Linux downloads Read 15 Oct 2026 · soapui.org
ReadyAPI API Functional & Security Testing $1,069 a year 1-year fixed license Functional and security API testing module Read 15 Oct 2026 · smartbear.com
ReadyAPI API & Service Virtualization $1,415 a year 1-year license API and service virtualization module Read 15 Oct 2026 · smartbear.com
ReadyAPI Performance Small $7,389 a year 1-year fixed license 250 VU/TPS Read 15 Oct 2026 · smartbear.com

Every SoapUI plan and price →

Strong points and limits

Strong points

  • Tests REST, SOAP, and GraphQL services
  • Creates SOAP and REST mocks from WSDL
  • Supports functional, regression, and data-driven tests
  • Runs on Windows, Mac, and Linux/Unix
  • Integrates with Maven, Hudson, Bamboo, JUnit, and Ant

Limits

  • Open-source edition is listed for basic functional and performance testing
  • Security testing is associated with ReadyAPI capabilities

Who it suits

SoapUI suits developers and testers starting with API testing, especially those working with REST, SOAP, or GraphQL services. Its cross-platform support and automation integrations may fit teams using command-line or CI workflows.

Verdict

SoapUI Open Source covers API functional testing, mocking, and command-line automation at no listed price. Readers needing security testing should note that the site associates that capability with ReadyAPI’s expanded features.

Where Specifiction places it

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