Best Performance Testing Software for Postman

Parasoft's mission is to provide automated testing solutions and expertise that empower organizations to expedite delivery of safe and reliable software. A powerful unified C and C++ test automation solution for static analysis, unit testing and structural code coverage, Parasoft C/C++test helps satisfy compliance with industry functional safety and security requirements for embedded software systems.

vStellar is an all-in-one automated software testing platform designed to accelerate QA processes through a low-code framework that eliminates repetitive manual testing. With comprehensive support for UI, API, mobile, performance, and accessibility testing, it provides a unified solution for complex testing environments. The platform integrates directly with IntelliJ IDEA, allowing users to install a lightweight plugin and begin creating and executing test cases instantly. Teams can define locators, endpoints, and execution parameters visually, then run unlimited test cases with advanced parallelization. Built-in reporting dashboards offer real-time visibility into test results and system performance, while CI/CD integration ensures continuous quality validation during deployments. vStellar’s flexibility supports diverse environments and browsers, enabling consistent validation across platforms and devices. Companies leverage it to reduce QA effort, accelerate release cycles, and enhance overall reliability. With its combination of ease of use and technical depth, vStellar redefines how teams automate testing at scale.

LoadView by Dotcom Monitor is a cloud-based load-testing platform that DevOps, performance testing engineers, and web application developers use to load test websites, web apps, and APIs with real browsers. Simulate real traffic from around the world to identify bottlenecks and performance issues, and improve the user's experience. With industry leading support and an easy-to-use platform, LoadView is your one-stop partner for load testing websites and web applications.

Gatling is engineered for organizations that need to test at scale, offering a unified environment for designing, running, and analyzing load tests. It transforms complex performance challenges into clear, actionable insights through powerful metrics, comparisons, and customizable dashboards. Whether you're validating an API, stress testing a cloud migration, or preparing for seasonal traffic spikes, Gatling delivers predictable and repeatable results. Teams can generate millions of virtual users distributed across global or private infrastructure, ensuring realistic test conditions. With seamless integrations into CI/CD pipelines and development workflows, performance testing becomes a natural extension of the delivery cycle. Collaboration is built in, allowing teams to share scripts, coordinate runs, and manage resources together. Gatling also helps organizations follow FinOps principles by optimizing cloud usage during testing. Its flexible approach ensures faster releases, fewer incidents, and far better preparation for high-traffic moments.

Ensure your applications perform well and maintain high quality by simulating real-world traffic conditions. Monitor code efficiency, quickly identify issues, and gain confidence that your application operates at peak performance prior to launch. Create realistic scenarios, conduct load testing, and develop sophisticated simulations of both external and internal backend systems to enhance your readiness for production. Eliminate the necessity of establishing expensive new environments for every test. The integrated autoscaling feature helps reduce your cloud expenses even more. Avoid cumbersome, custom-built frameworks and tedious manual testing scripts, enabling you to deploy more code in less time. Have confidence that updates can withstand heavy traffic demands. Avert significant outages, fulfill service level agreements, and safeguard user satisfaction. By mimicking external systems and internal infrastructure, you achieve more dependable and cost-effective testing. There is no need to invest in costly, comprehensive environments that require extensive setup time. Effortlessly transition away from outdated systems while ensuring a seamless experience for your customers. With these strategies, you can enhance your app’s resilience and performance under various conditions.

Curiosity Modeler generates: Clear, complete specifications that reduce the creation of costly bugs. Test cases optimized to catch more defects the first time. Test data that is compliant for each test and available to testers when they need it. Test frameworks, whether open source, commercial or homegrown, can be used to execute rigorous automated tests. Rapidly create flowcharts with a variety of importers and accelerations and automatically generate comprehensive automated tests and complete test data. Automation engineers maintain coded frames, exporting objects and actions to Curiosity Modeller. Anyone can automate with a drag-and drop approach.

Akamai brings digital experiences closer to users than any other provider while simultaneously keeping threats and attacks at bay. As it drives the next wave of digital transformation, the Akamai Intelligent Edge Platform acts as a comprehensive shield, safeguarding all aspects of the digital ecosystem, including websites, users, devices, data centers, and clouds. This technology effectively reduces friction and enhances user engagement. With a network of a quarter of a million edge servers strategically positioned in numerous locations worldwide, it processes an astounding 2.5 exabytes of data annually, engaging with 1.3 billion devices and 100 million IP addresses daily. Positioned within a single network hop of over 90% of the global Internet population, it stands out as the sole global, extensively distributed, intelligent edge platform, delivering the scale, resilience, and security that modern businesses require. Additionally, it offers advanced threat intelligence to help organizations manage security vulnerabilities and defend against cyber threats. This comprehensive approach ensures that digital operations remain secure and efficient in an increasingly complex online landscape.