The following are the best open source UI performance testing tools, API performance testing tools, JMeter load testing, Ajax performance test tools, Highload testing tools, stress test tools, free load testing tools online, load testing open source software applications, load testing web applications and API’s.
Here, I’m giving you the list of best open source ui performance testing tools. It can improve your site responsive. Testing timings are also very less compared to other tools.
AI Test Creation and Analytics for iOS and Android
21 is a sophisticated, self-learning test automation and analytics platform for iOS and Android applications.
21 offers:
- Fast and intelligent authoring – AI-assisted authoring empowers users to create automated functional and UI tests in under 5 minutes.
- Results you trust – Seamless algorithmic locators system ensures stable results across all frameworks. No locators needed.
- Eliminate maintenance and flaky results – self-learning maintenance autonomously updates tests and assures your team can focus on developing new features while relying on test results.
- Release with confidence – Production integration uncovers the data needed to close the feedback loop, analyze actual coverage, and point to areas in the app that will maximize your ROI. Use data when releasing.
21 is fully SaaS, requires no installation or devices to create or execute tests. It offers access to dozens of devices seamlessly.=> Visit 21 Website
Kobiton (iOS And Android Device Cloud)
- Kobiton is a mobile device cloud platform that provides access to real devices to run manual and automated tests on native, web, and hybrid Android/iOS apps
- Built on top of the Appium open-source framework
- Continuously adding the latest hardware and OS updates to the device lab
- Test across devices without script modifications
- Automatically generated activity logs, commands, screenshots, and metadata allow for faster identification of issues
- Prepaid minutes of testing time that never expire.
AppLoader
AppLoader by Automai is an automated performance tool without coding or installations on your app servers/VDI. This frontend tool lets you view actual app performance using bots that access your apps en masse using their desktop GUI.
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AppLoader frees you from protocol limitations and lets you test things you want. Create custom workflows with ease using canned scripts and log-in time and define workflows to fit your workload.
You can perform testing by building automated test cases in a minute, using the code-free scripts generated by the tool, playback and view the bot navigating the process, and then adding or editing logic to your cases anytime. The test processes involve multiple apps through access points, and you require no plugins or APIs.
View screenshots quickly when the test fails to detect the cause and resolve the issues. Plus, you can also see the overall performance metrics and ramp-up times in a single dashboard.
AppLoader offers easy maintenance, and you can reuse its existing components, sections, and scenarios; retake images, edit line actions if needed, and change script sections to meet application changes and upgrades.
Features and Benefits
- Robotic automation: With robotic automation for testing, you don’t have to install anything over your app servers or VDIs.
- User-friendly test scenarios: View scenario components at one glance and find actions, define transactions anytime, and more.
- Pricing: Tell them your requirements to get a quote. A free trial is available, along with a demo.
Gatling
Launched in 2012 and written in Scala, Gatling is an open source performance and load testing tool for web services, mainly applications. It lets you avoid crashes by anticipating crashes and slow response times, detect issues early to improve time to market, enhance user experience, and boost your business.
The code-link scripts of Gatling let you maintain test scenarios easily and automate them. It is built for continuous load tests and can integrate easily with your developmental pipeline. It also includes a web recorder.
Features and Benefits
- Readable DSL: Their domain-specific language (DSL) makes the reading of test scenarios easy for everyone.
- Analysis: Simulate thousands of user requests/second easily and achieve highly accurate metrics that you can view in a colorful and dynamic report.
- Pricing: Free.
Apart from an open source tool, Gatling also offers a commercial tool Gatling Frontline with advanced features and metrics for test automation and integration. Its on-premise plan costs $485/month, while the cloud plan starts from $3/hour
Eggplant
Increase end-user engagement by offering them scalable and responsive apps load testing with Eggplant. This load and performance testing tool is simple and provides actual and user-centric testing.
Eggplant exhibits excellent simulation capabilities. It simulates users virtually at both network protocol and application UI levels to completely understand UI impact. In addition to that, it is a highly extensible, open, and multi-protocol supported tool that helps you solve test challenges.
Features and Benefits
- Test controls: You can control tests easily while they are running.
- Effective analysis: Effective and real-time test analysis with reporting lets detect issues quickly and resolve them efficiently.
- Pricing: Try their demo and contact them for a quote.
Loadster
Load test web applications with Loadster can handle heavy loads and helps you optimize your app performance, prevent downtime, and control costs. You can test any sort of HTTP APIs like REST, JSON-RPC, GraphQL, and XML-RPC.
It offers advanced validation rules to find errors and record values to reuse them later. You can also record scripts using Loadster Recorder (a free browser extension) and edit them in the browser.
You can launch cloud tests quickly with Loadster. It can run distributed cloud tests globally with little setup and establish 1000s of bots across cloud instances.
Features and Benefits
- Real-time metrics: Get real-time results during the tests for errors, throughput, and response times, along with automatic reports.
- Pricing: Their pay-as-you-go model starts from $119/month for 1000 bot hours, while monthly plans start from $299.
Akamai CloudTest
CloudTest by Akamai allows you to perform stress testing on your environment and ensures your app or site is ready for sudden traffic spikes. It is a highly scalable and robust tool that lets you simulate large events with accurate controls and provides live site analysis to help you detect bottlenecks.
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It’s super easy to use. You can develop, provision, perform tests and get detailed insights without hassles. This performance testing tool requires lower resource allocation but produces high-performance results.
Feature and Benefits
- Rapid test creation: Create tests faster without coding.
- Pricing: Free for 100 concurrent users, and on-demand plans start from $2,500.
Parasoft Load Test
Parasoft Load Test is a simple and easy-to-use load and performance testing tool with an intelligent user interface and makes configuration effortless. It is extensible with a scripting extension to add custom functionalities.
The tool offers multiple performance testing types, including stress testing, endurance testing, component testing, spike testing, infrastructure testing, and scalability testing.
By importing JUnit tests on your load test, you can achieve early-stage load tests, isolating specific parts of your codebase. Besides, you can automate test result analysis with QoS metrics and integrate it with major APM systems for correlation.
Features and Benefits
- Cost-efficient: Run tests on-demand using cloud services like AWS and reduce hardware requirements for performance testing.
- Pricing: Contact them for a quote.
Kinsta APM
Need a hassle-free performance monitoring solution for your WordPress website? Try Kinsta APM. It’s designed to let you find and resolve performance issues on your Kinsta-hosted sites. With a simple and easy-to-use UI, Kinsta APM is for everyone, whether they’re beginners to experts. Plus, it’s available in 10 languages under MyKinsta.
Kinsta APM provides insights on slow PHP transactions, external requests, MySQL queries, and more. You can debug database queries, non-optimized themes or plugins, and longer API calls and external URL requests, along with identifying slowest, median, and average transactions.
It’s helpful for everyone, from agencies and ecommerce site owners to developers, by helping them find and troubleshoot performance issues quickly while reducing their expenditure on costly APM tools.
Features and Benefits:
- Customer support team: With over ten years of experience, Kinsta’s seasoned customer support team will resolve all your site issues with 24/7 availability and a 100% solve rate. You can chat with them directly through MyKinsta and get instant replies.
- Pricing: The tool is free for every website that Kinsta hosts, no matter what plan you’ve chosen. You can also book a live demo to test the performance yourself.
WebLOAD
Released in 1997, WebLOAD by RadView is a performance and load testing tool for your software and helps you scale your business. It offers capabilities like performance, integrity, and scalability testing.
This enterprise-grade tool is capable of simulating thousands of users concurrently so you can test heavy traffic loads and report weak points, constraints, and performance bottlenecks in your application.
Use WebLOAD for website load testing, continuous testing, cloud load testing, and more. The tool can generate load from the cloud or on-premise machines and offers an Integrated Development Environment (IDE) for recording, editing, debugging test scripts visually.
Its proxy-based recorder also records your HTTP activities and generates tests in JavaScript. You can also edit or enhance it using multiple tools in IDE. WebLOAD offers analysis reports for performance data that help users to identify bottlenecks.
Features and Benefits
- Correlation: Correlates dynamic values automatically like session IDs and enables scripts to execute with different virtual clients.
- Protocol support: Supports HTTPS, HTTP, and XML.
- Integration: Integrates with tools such as Selenium, Jenkins, etc.
- Customer support team: You can reach out to them via phone call, fax, or contact form.
- Pricing: There is a free trial option available for up to 50 users. Contact their team to get a quote.
Conclusion
You might never think that the performance of your website or web application is an issue (it can’t really be that slow, right?), especially if it’s still in the development phase. However, when your website becomes popular and starts getting hundreds of visitors, issues with performance can be very detrimental to your customer experience. A good user experience is often driven by quick loading pages and I’m sure you would agree that this makes for a positive customer experience.