Best Web Application Testing Tools

We use web app testing tools to enhance reliability, reduce turnaround time and to increase ROI (return on investment).


This software automation tool is used by those organizations who use software operations/development. It is also used by those organizations who are looking to automate their back-office operations or software testing process. ZAPTEST is also used to develop a seamless automation framework.


  • Also used for automated functional and performance testing

  • Used in RPA (Robotic Process Automation)

  • Offers seamless testing

  • Used in executing cross-platform (parallel) testing

  • Automated DevOps (mock-ups)

  • API (Application Programming Interface) testing

  • Automatic documentation


This is an easy-to-use manual testing tool used for testing web applications. It is easily accessible. It emphasizes pragmatism over process. Testpad also uses checklist-based test plans which can be used for a wide range of styles such as Exploratory testing, manual agile testing, syntax highlighted BDD, and traditional test case management.

  • Guest users do not need accounts, as they are invited by E-mails

  • So simple that even non-testers can use it

  • Its editor is keyboard-based and its UI is powered by JavaScript, thus responsive

  • Test plans are easily organized

  • New tests can be added during testing

  • Integrated with issue trackers


This tool enables creating reusable tests for web apps including modern JavaScript frameworks (React and Angular) on more than 2500 browsers and platform configurations.


  • Test creation is completely codeless

  • Uses record and playback for creating tests

  • The test script is of our choice of modern language such as JavaScript, Python, VBScript

  • Its object recognition is excellent

  • Used for testing enterprise apps including Salesforce and SAP

  • Enables executing functional UI tests parallelly in cloud or on local machine

  • Tightly integrated with other tool in the ecosystem such as CI/CD, test management tools, issue tracking tools, version control tools, etc.

Katalon Studio

This comprehensive automation tool is used for testing web, API, mobile and desktop apps. There are more than half a million users of Katalon Studio. Both beginners and experienced testers use it for its versatility and practical features for stress-free testing.


  • Its test design is very flexible. It helps beginners in automated testing use record and playback feature to create tests quickly. It also provides experienced testers with in built keywords and advanced scripts to improve productivity.

  • Supports Selenium migration

  • Enables importing Selenium tests in TestNG/JUnit framework

  • Powerfully executes tests

  • Cross-browser automated testing

  • CI/CD pipeline integrations

  • Supports various testing methodologies such as keyword-driven testing, page object model testing, data-driven testing, TDD/BDD testing

  • Helps cut down test maintenance costs and effort

  • Gives real-time and insightful charts and graphs of all testing phases to manage the project efficiently


It is the first open-source test automation tool that eases web testing. It has more than 1,00,000 users, and is used by both beginners and highly experienced testers.


  • Does not require any complex setup

  • No need of maintaining framework

  • We can start testing immediately

  • Supports four programming languages

  • Completely compatible with Selenium

  • Open-source SDK

  • Real-time reports and dashboards that can be easily shared

  • More than 1500 built-in test automation actions that strongly empower tests

  • Integrated with Jenkins, TeamCity, BrowserStack, Sauce Labs, Slack, etc.

Parasoft Continuous Quality Suite

Automated testing tools from Parasoft provide quality to software delivery process to prevent, detect, and resolve defects quickly. This solution covers static code analysis, Unit testing, code coverage, API testing, UI testing. It enables speedy software delivery in compliance with industry and security standards.


  • Creation and execution of tests is powered by AI

  • Used for low-code app testing

  • Offers extensive dashboards to create quality reports and analysis

  • Supports more than 120 message formats and protocols

  • Integrated with CI/CD pipeline

  • Supports Agile DevOps workflows


It attracts more than 30,000 users every year, and is the most favoured cross-browser compatibility testing tool. It enables executing web tests through its scalable, secured, and reliable cloud-based Selenium grid. LambdaTest supports more than 2000 browsers and browser versions to maximize our test coverage.


  • Integrated online Selenium grid for quick and automated cross-browser compatibility testing

  • Supports more than 2000 browsers and OSs

  • Enables executing tests of automated scripts parallelly with the help of LambdaTest Selenium Grid

  • Automatically captures screenshots

  • 24x7 chat support


This open-source tool is the most popular and widely used automation tool. It is one of the best web automation tools to automate testing across various OSs such as Windows, macOS, Linux and browsers such as Firefox, Chrome, Internet Explorer, Safari, Edge, etc. Test scripts can be created with programming languages like Java, C#, Python, Ruby, PHP, Perl, and JavaScript.

It comes with record and playback features along with browser add-on Selenium IDE. The Selenium WebDriver enables creating complex and advanced automation scripts.


UFT and QTP stand for Unified Functional Testing and Quick Test Professional respectively. This HP product is the leading cross-platform automation web testing tool. It automates web, desktop, SAP (System, Applications & Products), Delphi, Net, ActiveX, Flex, Oracle, Mobile, PeopleSoft, PowerBuilder, Siebel, Stingray, Visual Basic, and many other applications. It is tightly integrated with ALM (a test management tool) and LoadRunner (a performance testing tool).


  • Keyword-driven framework
  • XML support
  • Business Process testing
  • Robust checkpoints
  • Results are stored in the form of a screen or GUI object and we can it with run-time object
  • Tests are executed from a stored script
  • Test results can be seamlessly logged
  • Data files can be quickly accessed to be used as test data


This static code analysis tool detects defect/bugs which affect the stability, robustness, security, and maintainability of the software. It helps fix bugs before the software is deployed and also helps deliver high-quality software quickly.


  • It helps pick up code smells and vulnerabilities

  • Its anti-pattern detection feature helps prevent constitution of unmaintainable code

  • Easy integration with GitHub, Bitbucket, Microsoft Azure, and Git

  • Available plugins for Eclipse and IntelliJ IDEA

  • Insightful and quicker checks in comparison to standard code editors


This tool offers a continuous testing platform that speed up testing so that we can keep up with agile and DevOps cycle.


  • Supports a wide range of protocols, e.g., HTTP, HTTPS, AMQP, Rabbit MQ, TIBCO EMS, SOAP, REST, MQ, NET TCP, etc.

  • Integrated with agile and DevOps cycle

  • Test automation is model-based that eases script maintenance

  • End-to-end testing, API testing across mobile, cross-browser packaged applications


It is one of the most widely used and popular API testing tool that enables testing of REST and SOAP APIs easily.


  • Easy and quick tests creation

  • Makes complex tasks easier with features such as point-and-click, drag-and-drop, etc.

  • Data-driven testing

  • Data loaded from excel, files and databases for simulating the way users interact with the APIs

  • Test cases and scripts can be reused as load tests and security scans

  • Integrated with 13 API management resources

  • Works with REST, SOAP, JMS and IoT


This open-source and one of the most popular bug/defect tracking tools offers some great features such as −

  • Notifies through E-mails for every change in code
  • Charts, reports, and reviews
  • Patch viewers
  • Bugs can be listed in different formats
  • Helps schedule daily, weekly and monthly reports
  • Automatic detection of duplicate bugs
  • Prioritizing the bugs by involving the clients
  • Helps predict the time a bug may take to get fixed


It is one of the most popular bugs tracking tools. It is used by thousands of software professionals due to its easy-to-use framework. This commercial product helps capture and organize team problems. It also helps prioritize issues and updates them with the project. JIRA directly integrates with code development environments, thus making it a perfect choice for developers. It can track any type of issue; thus, it is used in other industries too. JIRA seamlessly supports agile projects. It offers multiple add-ons that make it more powerful than other bug tracking tools.


This is one of the best cross-browser compatibility testing tools that helps test clicks, scrolls, reloads, and input forms in a synchronized manner. Ghostlab uses built-in inspector to reach the bottom of any issue quickly. It connects to the DOM or JavaScript on a device and fixes the code with effectiveness. It is a multiple browser testing tool and supports macOS X and Windows. It does not even require any setup.

Sauce Labs

This cloud-based platform is used for testing web and mobile apps. This tool offers instant access to QA experts to many browser-OS combinations, mobile emulators, simulators, and real devices. It supports Google Chrome, Edge, Safari, Firefox on Windows, Linux, MacOS, iOS, and Android.


This tool is available on mobile and desktop browsers and does not need any installation. It lets us set up a comprehensive test environment with support for firewalls, proxies, and Active Directory. This tool supports new as well as old versions of Internet Explorer, Safari, Edge, Chrome, Firefox on Windows and MacOS.

With BrowserStack Live, we can test our website on mobile devices running on various Oss using the BrowserStack cloud platform. This tool can immediately start testing on a real device in the cloud. It supports almost every mobile device browser. It does not need any device lab or virtual machine. However, it has poor response time.


This product from SmartBear helps quickly create complex load tests without any test scripts. It reduces testing time by 50%, uses real browsers rather than load emulators. It helps obtain actionable, browser-based metrics quickly. It captures customer-side interactions, debugs in real-time, and discovers performance-related issues instantly. It assists in increasing the test coverage without compromising with quality, by removing dynamic correlation, script translation, and script scrubbing. It emphasizes building software rather than building load testing scripts.


This open-source tool from Apache is used for performance and load testing. It can be also used for analysing and measuring the performance of various services. It is mainly used for testing web and web service apps. It automates web testing, and does not require state of the art infrastructure. It also supports multiple load injectors that are manageable by a single controller.

Case Complete

This agile requirement tool captures requirements and cases with less effort.


  • Strong demands
  • Can easily identify undefined or missing requirements
  • Traceability of requirements
  • Integrated with Test Management tools