The Industry’s #1 API Testing Tool

Built for developers and testers alike, SoapUI is the only open source tool that covers the entire testing spectrum (functional, security, load, mocking). With its easy-to-use graphical interface, SoapUI is the entry point for API testing so you can validate REST, SOAP, and GraphQL-based web services with ease.

Download SoapUI

SoapUI Open Source Features

Scriptless Functional Testing

With drag and drop test creation, you can create and run even the most complex scenarios

Security Testing

Using a complement of tests and scans, protect your services on websites against the most common security vulnerabilities

Load Testing

Create load tests quickly and easily on the base of existing functional API tests

API Mocking

Mimic your Real Web Services without having to wait for them to be ready or accessible. Best of all, you don't have to build expensive full-scale replicas of your production systems.