List of the Top 25 Free Performance Testing Software in 2025

Sematext Cloud offers comprehensive observability tools tailored for contemporary software-driven enterprises, delivering crucial insights into the performance of both the front-end and back-end systems. With features such as infrastructure monitoring, synthetic testing, transaction analysis, log management, and both real user and synthetic monitoring, Sematext ensures businesses have a complete view of their systems. This platform enables organizations to swiftly identify and address significant performance challenges, all accessible through a unified cloud solution or an on-premise setup, enhancing overall operational efficiency.

Obkio offers a straightforward solution for Network Monitoring and Troubleshooting as a SaaS platform, enabling users to keep track of their network's health and the performance of essential business applications, thereby enhancing the experience for end-users. In mere seconds, Obkio can detect the root causes of sporadic network disruptions, as well as slowdowns in VoIP, video, and applications, allowing for timely troubleshooting before it impacts users. You can set up monitoring agents at key positions within a company's infrastructure or various network locations, including data centers, remote offices, client sites, or across both public and private clouds, to ensure ongoing performance tracking through synthetic traffic that is exchanged every 500 milliseconds. Obkio systematically evaluates and tracks vital network metrics, which encompass latency, jitter, packet loss, quality of service, and customer experience through Quality of Experience (QoE) assessments. The application promptly notifies you when any issue arises or even when potential failures are detected, not only identifying the problem's source but also providing the capability to retrospectively analyze the situation for comprehensive diagnostics. This proactive approach to network monitoring ensures that businesses can maintain optimal performance and address issues before they escalate, ultimately leading to a more reliable user experience.

Optimizely stands as the world’s foremost authority in Progressive Delivery and Experimentation, enabling top-tier companies to effectively test and roll out new features and experiences for their clientele. By prioritizing data-driven insights, ongoing experimentation, and relentless innovation, it shapes digital experiences that revolutionize organizations. The Optimizely One platform is your gateway to unlocking your digital capabilities, emphasizing the importance of crafting human-centered digital interactions. Discover how to eliminate uncertainty and ensure every engagement is meaningful and actionable. In today’s digital commerce landscape, the focus extends far beyond mere products, catalogs, and transactions; it involves weaving narratives, stirring emotions, and fostering trust. Remember, business is not something you are entitled to; rather, it is earned through every single interaction you have. Ultimately, establishing genuine connections with customers is vital for long-term success.

Zebrunner is a cutting-edge platform that harnesses AI to merge manual and automated testing, fostering effective collaboration among QA teams. Its AI-driven features enhance testing processes by creating and completing test cases automatically, prioritizing issues, and providing immediate insights into testing activities. The Test Case Management aspect of Zebrunner presents a robust solution for structuring manual test cases, boasting user-friendly split-screen navigation, drag-and-drop editing, and customizable layouts that enhance management efficiency. With the ability to track progress in real-time, testers can swiftly pinpoint and address any obstacles or failures that arise. Additionally, the platform allows for the creation of custom fields and filters, ensuring that test management can be adapted to meet the specific needs of various projects. Furthermore, Zebrunner's Automation Reporting improves automated testing by offering sophisticated reporting and analytics capabilities. It seamlessly integrates with widely-used frameworks like TestNG, JUnit, and Cypress, allowing teams to gain real-time visibility into their test executions. This enables them to monitor progress effectively, scrutinize failures, and access detailed logs or video recordings. By providing thorough reporting functionalities, Zebrunner equips teams with data-driven insights that not only optimize their testing strategies but also empower them to make better-informed decisions moving forward. Overall, Zebrunner's comprehensive features contribute significantly to enhancing the overall quality assurance process.

ZAPTEST stands out as a premier tool for both Free and Enterprise software test automation and Robotic Process Automation (RPA), leveraging advanced Computer Vision technology to facilitate seamless automation across various digital interfaces for both UI and API. Coupled with our unique 1SCRIPT methodology, ZAPTEST enables smooth automation, allows for parallel execution, and offers unlimited licenses, all of which contribute to a testing suite capable of delivering returns as high as 10X. The platform is versatile enough to automate any task achievable through any digital interface, whether it be a live application or a mockup. By choosing to collaborate with ZAPTEST, partners gain access to unmatched benefits that significantly enhance the software testing landscape and RPA methodologies. Our collaboration fosters innovation, allowing businesses to adopt cutting-edge automation solutions that elevate their efficiency and effectiveness. Moreover, ZAPTEST equips organizations with a cohesive automation platform designed to optimize both software testing and operational workflows, ensuring a streamlined approach to business processes. With our unlimited licensing model, scaling operations is not only simple but also enables businesses to evolve into agile and efficient entities in a competitive market.

Apptim allows mobile developers to thoroughly test their applications and assess performance metrics to prevent potential problems prior to launching. The platform enables users to evaluate app rendering speeds, energy consumption, and resource allocation across both Android and iOS platforms. Within just a few minutes, you can obtain initial testing outcomes and analyze the performance differences between various versions of your app. Experience the advantages of Apptim at no cost today, ensuring your releases are executed with assuredness: https://bit.ly/3ert9yQ. Don't miss the opportunity to enhance your app's reliability and user satisfaction by utilizing this powerful testing tool.

Alithya GoTest serves as an intuitive and efficient test hub that promotes teamwork and quick adoption, guaranteeing the dependability of digital solutions for businesses that demand uncompromising quality. Our user-friendly interface facilitates collaboration, execution, and resolution of tests while enabling communication across all team levels, ensuring that both test plans and results include the necessary details for effective analysis. Platform-agnostic in nature, Alithya GoTest enables seamless testing of desktop, web, and mobile applications, eliminating the need for extensive time and resources typically spent on building, maintaining, and integrating testing platforms into development workflows, thus empowering development teams to concentrate on adding value and enhancing quality. In contrast to traditional testing solutions, Alithya GoTest uniquely offers comprehensive end-to-end software testing through continuous testing within a DevOps framework. You can reach out to our exceptional bilingual support team or utilize our consulting, coaching, or online training resources to quickly familiarize yourself with the platform. Additionally, take advantage of our expanding catalog of pre-designed test suites tailored for major ERP platforms, such as Oracle Fusion Cloud, ensuring that software updates do not disrupt your existing solutions, thus enhancing overall operational resilience.

Execute performance evaluations on digital products and services in just minutes. Eliminate the daunting learning curve by designing, executing, and preserving your JavaScript code tests to streamline your education process. * Develop threads that range from straightforward to intricate, allowing you to replicate various realistic scenarios at once for your JavaScript code assessments. * Utilize a single tool to create and conduct performance tests efficiently. * Conduct tests across any platform, regardless of whether it is hosted in the cloud or on conventional servers. * Implement continuous testing with integrated CI/CD tools to automate the performance testing process. * Gain immediate access to data, identify hidden issues, and address them proactively before they impact users. * Simulate the experience of hundreds of thousands of users through a realistic simulation using virtual browsers, ensuring your application can handle high traffic levels effectively.

Every online business should implement a diverse range of network monitoring solutions to effectively track their uptime and overall system performance. In contrast to traditional synthetic monitoring tools that rely on agents in data centers to test endpoints, CloudPerf distinguishes itself by utilizing a worldwide network of real-user devices, offering a thorough, end-to-end view of performance challenges. It is crucial to understand that performance assessment goes beyond simply measuring load times; users can delve into specific resources via waterfall charts or export the HAR file for analysis with their preferred tools. Evaluating the complete page load is vital for understanding how third-party dependencies impact performance across different geographical areas. Furthermore, CloudPerf enables the configuration of multiple alerts for each monitored destination, each tailored to specific uptime and performance standards. When any of these predetermined thresholds are breached, CloudPerf quickly alerts your designated contacts, ensuring prompt resolution of any performance issues. This comprehensive monitoring approach is indispensable for sustaining the health of an online business's digital ecosystem. By adopting such tools, businesses can proactively address challenges and enhance their customer experience.

Open architecture facilitates the creation and execution of load tests for various applications, such as a home page, a specific URL on your site, or a mobile API endpoint. With this system, you can swiftly develop straightforward tests and scale them to accommodate thousands of users within just a few minutes. Tools like Apache JMeter and WebDriver are more than just open-source options for cloud-based load testing; they also represent dynamic communities with extensive expertise built from genuine user experiences. By utilizing open load tests, you can compose your load tests using the programming languages and tools you regularly engage with, such as Python or PHP. This makes the process of load testing not only straightforward and cost-effective but also accessible to everyone interested. The effectiveness of this methodology stems from an open architecture that grants flexibility and control over the configuration of cloud load agents, allowing for tailored solutions that meet specific testing requirements. Additionally, the collaborative nature of these communities fosters innovation and continuous improvement in load testing practices.

An integrated cloud-based testing solution offers a comprehensive suite for performance evaluation, load assessment, website speed analysis, and user interface examination, extending its capabilities to mobile applications and API services as well. With JMeter, testing is facilitated from numerous cloud locations, accommodating thousands of users simultaneously, while Apache JMeter provides immediate insights into performance metrics for your websites and APIs from the cloud environment. You have the ability to track performance fluctuations over time and gain suggestions for enhancing page load speeds; we execute your tests on cloud servers at predetermined intervals and alert you in case of any issues. To uncover rendering problems, erroneous HTML, or missing and incorrect CSS, simply load your web pages into mobile emulators. Scheduling runs in a matter of seconds allows you to analyze the rendered visuals across various devices, effectively simulating your site on diverse screen sizes and resolutions. Capture screenshots of two different websites quickly, and utilize a comparison threshold to identify any discrepancies in the generated images. This efficient process ensures that you can maintain optimal performance and user experience across multiple platforms.

Incredibuild stands out as the premier platform for accelerating development processes. Our innovative platform enhances the speed of developer and CI builds through advanced distribution and caching technologies, dramatically reducing wait times from hours and days to mere minutes. Crucially, this enhancement occurs without any alterations to your existing code, tools, or workflows, whether implemented on-premises or in the cloud. With Incredibuild, users gain improved visibility into their builds, experience significant acceleration, and benefit from intelligent orchestration of build assets, achieving build times that are 8-10 times faster. More than 200,000 developers and managers across over 2,000 organizations, including renowned names such as Microsoft, Amazon, Citibank, Adobe, Disney, Intel, Samsung, and EPIC Games, leverage Incredibuild to supercharge their development efforts and enhance customer satisfaction. This widespread adoption illustrates the platform's effectiveness in transforming development timelines and outcomes for companies of all sizes.

Enhance your testing workflow with QADeputy, a robust platform designed to manage your test cases, suites, runs, and reporting all in one place. Effortlessly integrate with your favorite automation and bug tracking tools while improving communication with all stakeholders involved. Customize the platform to meet your unique testing needs, allowing you to oversee test cases from a centralized location and easily import data using our CSV/Excel utility. Structure your test suites and plans to guarantee that your team is always testing the latest features with assurance and precision. Increase productivity by streamlining test runs, allowing test engineers to focus on what is most important—ensuring quality in testing. Leverage simple, ready-to-use integrations for automation tools, communication channels, and bug tracking systems to keep everything in sync. Clearly articulate your testing requirements, track coverage, and keep your team aligned throughout the testing lifecycle. Furthermore, personalize various elements such as fields, statuses, reusable snippets, configurations, and tags to enhance efficiency in your testing process, ultimately tailoring it to fit your team's specific workflow. This all-encompassing strategy guarantees that every facet of your testing is fine-tuned for optimal success, reflecting a commitment to quality and innovation. By adopting QADeputy, you empower your team to deliver exceptional results consistently.

An exceptional open-source tool for conducting load and stress testing is now available. For compliance with security regulations, you can acquire dedicated IP addresses from various global locations to effectively simulate user loads during your testing processes. Additionally, automated scripts created with Selenium can be leveraged for evaluating performance. Rather than relying solely on local data centers, you can generate load from different regions to conduct thorough load assessments. The tool boasts impressive reporting capabilities that present both tabular and graphical representations of data, enabling you to closely monitor application performance throughout the testing phases. Furthermore, you have the ability to shift left by integrating performance testing into your DevOps workflow using your favorite continuous integration tools. Application Performance Management (APM) tools play a crucial role in overseeing the application's infrastructure. Performance testing encompasses a specific type of software assessment dedicated to verifying that applications function optimally under user loads. It is essential to recognize that performance testing primarily aims to uncover performance bottlenecks rather than simply identifying bugs, as it evaluates various quality attributes of the system and its overall efficiency. Ultimately, this thorough approach ensures that the application meets user expectations and delivers a seamless experience.

iMacros stands out as a premier solution for web automation, data extraction, and testing, now upgraded with Chromium browser technology to ensure it works seamlessly with all modern websites. This enhancement allows it to accommodate platforms that utilize dialog boxes, Javascript, Flash, Flex, Java, and AJAX. Users can perform in-browser tests without any hassle on both Chrome and Firefox. Data handling is flexible, as it can be stored in standard file formats or sent directly to a database through an API. The iMacros web automation software is crafted to operate with any website, making the task of recording and replaying repetitive actions significantly easier. Users are able to automate tasks across both Chrome and Firefox without needing to master a new scripting language, which simplifies the automation of even the most complex tasks. This tool supports functional, performance, and regression testing on modern websites while accurately measuring web page response times. Additionally, users can schedule macros to execute at regular intervals on their live website, ensuring continuous operational integrity and optimal performance. With these features, iMacros not only streamlines workflows but also empowers users to effectively enhance productivity while ensuring their websites function flawlessly. By leveraging the capabilities of iMacros, users can focus more on strategic tasks rather than getting bogged down by routine activities.

You can either create your simulation using the intuitive no-code interface or choose to fully automate the process via the WireMock-compatible API. To achieve stateful interactions in your simulated API, simply implement a basic finite state machine model. Challenge your application by simulating various obstacles, including delays, lost connections, slow responses, and even corrupted HTTP payloads. The number of collaborators allowed on a MockLab plan indicates the total distinct collaborators and team members that can be included under the primary account; for example, a plan permitting 2 collaborators means that you and 2 colleagues can work together on API development. By applying these strategies, you can rigorously assess your application's strength and performance in demanding scenarios, ensuring it can handle real-world challenges effectively. This comprehensive testing approach will ultimately contribute to the robustness and reliability of your application in production environments.

Loadster serves as a platform designed for conducting load tests on websites, web applications, and APIs. By utilizing Loadster, you can determine the maximum capacity of your site before your users encounter issues. To uncover performance bottlenecks, enhance overall performance, or avert potential crashes, you can develop realistic testing scripts tailored to your specific needs. This proactive approach to testing ensures that you are well-prepared to handle user traffic efficiently.

Enhance your skills in debugging and web performance with a sophisticated in-browser HTTP sniffer that enables you to examine network traffic generated by a website directly, eliminating the need for external tools. This powerful utility offers accurate assessments of a web page's network efficiency while revealing opportunities for speed improvements, all without requiring any extra configurations or proxies—even for secured HTTPS connections! You can quickly pinpoint weak SSL setups and other security issues present on your web server. The free Basic Edition lets users send you detailed log files, simplifying remote error resolution and performance diagnostics. Additionally, the HttpWatch API allows for the collection of performance data during automated website evaluations. Fully compatible with Chrome, Edge, and Internet Explorer, HttpWatch reveals the HTTP and HTTPS traffic created during web page visits, and by selecting individual requests, you can access all pertinent details arranged in a user-friendly tabbed format. This seamless integration not only provides you with essential insights but also equips you with the tools needed to enhance the efficiency of your web applications while ensuring security measures are in place. Ultimately, with this tool, you gain a comprehensive understanding of your web performance metrics and areas for improvement.

Testin's application service platform provides an extensive range of services including testing, security, promotional activities, product optimization, and AI data solutions designed specifically for over a million developers and businesses around the world. Their device farm features a vast selection of popular devices that are regularly updated to maintain current relevance. Developers can easily access these devices through a web portal or via ADB, which allows for quick identification of issues within their applications on the desired devices. In addition, a compatibility testing service is offered to help create scripts that focus on the core functions of your app, whether it's being tested on specific devices or across all widely-used models in their facility. This arrangement facilitates the swift identification of functional, UI, and other compatibility problems while providing crucial debugging information, including testing procedures, screenshots, logs, and detailed bug reports for effective troubleshooting. Moreover, offshore testers craft customized test plans tailored to the category and distinct needs of your app. By utilizing a variety of testing methodologies and analyzing numerous real-world user scenarios, they meticulously uncover hidden issues that might remain undetected. This comprehensive strategy not only enhances the quality of the application but also fosters a final product that meets high standards of excellence and user satisfaction. Consequently, the end result is a dependable and well-refined application ready for its launch.

Eggplant enables organizations to craft exceptional digital experiences that captivate users. We assist businesses in tracking, evaluating, and enhancing their customer interactions effectively. Companies globally leverage Eggplant to surpass their rivals, boost efficiency, and provide outstanding customer satisfaction. So, how does Eggplant achieve this? It significantly elevates the quality, speed, and functionality of software applications across a variety of interfaces and platforms, including mobile devices, IoT, and desktops, all within agile, DevOps, and pioneering application and data environments. Additionally, Eggplant’s comprehensive approach ensures that organizations can adapt swiftly to changing market demands while maintaining high standards of performance.

Gatling serves as a tool for assessing load and performance in web applications. Developed by ex-IT consultants, Gatling aims to streamline and enhance the automation of DevOps processes. Its design focuses on providing an efficient solution for teams looking to optimize their application performance under various conditions.

Accelerate the process of identifying, reporting, and resolving bugs. Record your screen along with console logs effortlessly. Encountered a bug? You can easily create a screen recording by simply closing another application. Bird's replays come with built-in console logs and additional technical details such as browser type, operating system, and screen resolution. This streamlines the debugging process, allowing developers to minimize time spent on fixes and reduce unnecessary communication. Understanding Bird's target audience Bird is designed for web development teams, which typically include project managers, engineers, and quality assurance personnel, but it also holds value for designers. Additionally, non-technical staff can utilize Bird to enhance the effectiveness of bug reports. Simple and quick installation Setting up Bird takes just about five minutes, and no technical expertise or coding knowledge is required. JavaScript error notification Bird will proactively alert you to JavaScript errors on selected pages, ensuring that issues are caught before they escalate. This functionality not only enhances the debugging process but also contributes to overall project efficiency.

Presenting a groundbreaking automation solution tailored for extensive testing of digital applications, the eureQa platform is setting a new standard in the realm of test automation. This all-in-one platform encompasses a diverse range of testing methodologies, including functional, cross-browser/device, mobile, performance testing, and synthetic monitoring, all seamlessly integrated within a single enterprise-level cloud solution, enabling organizations to efficiently oversee their digital environments. By harnessing advanced Artificial Intelligence (AI) and Machine Learning (ML) technologies, eureQa provides businesses with critical tools to improve user experiences and enhance overall quality. As the significance of digital applications continues to grow for both commerce and enterprise software, eureQa emerges as a modern automation platform purpose-built to accelerate the testing processes associated with these applications. Prioritizing faster time to market, eureQa ensures that updates and new features for eCommerce applications and enterprise SaaS solutions can be deployed rapidly, helping businesses stay agile and competitive in a dynamic market landscape. This innovative strategy not only optimizes the testing lifecycle but also bolsters ongoing digital transformation efforts in various industries. Ultimately, with eureQa, organizations can expect to achieve greater efficiency and responsiveness in their digital operations, paving the way for sustained growth and success.

PFLB focuses solely on performance testing, assisting businesses in pinpointing and addressing performance issues like sluggish database queries or underperforming API calls. As the preferred partner for clients needing performance evaluation across diverse technologies—including web and mobile applications as well as core banking systems—we deliver tailored solutions. Our offerings encompass a variety of tools for JMeter, LoadRunner, and other testing environments. PFLB serves as an effective load testing platform, enabling organizations to execute performance tests that are both efficient and scalable. With more than 15 years of expertise, PFLB has established itself as a leading authority in the field of performance testing on a global scale. Our commitment to innovation and excellence ensures that we continuously meet the evolving needs of our clients.

Enhance your testing processes with Stellar’s innovative low-code automation platform. Increase efficiency, minimize errors, and achieve smarter software testing with integrated solutions for UI, API, mobile, performance, and accessibility evaluations. Empower your team to perform additional tests with reduced pressure, all due to seamless integration and advanced analytical tools. By utilizing Stellar, you can revolutionize your testing strategy and discover unprecedented levels of productivity, leading to a more streamlined development cycle. Embrace this opportunity to elevate your software quality and team performance simultaneously.