Articles

The most popular web development tools in 2025, split into front-end, back-end and integrated, with what each one is actually good for.

The most common desktop, mobile and tablet screen resolutions in 2025, and what they mean for responsive design and the breakpoints you test.

Getting started with Selenium WebDriver in Python: a first test, locating elements, implicit and explicit waits, alerts and teardown.

Step-by-step instructions for changing proxy, cookie and cache settings in Chrome, Edge and Firefox, on both Windows and macOS.

Isolation Testing means verifying the functionality of a specific part of software on its own, free from outside influences.

Why accessible design matters, what the four POUR principles ask of you, and how to check a site against them as part of normal testing.

The failures that quietly cost a Shopify store revenue, from slow loads to a broken checkout, and how scheduled monitoring catches them first.

A curated list of 15 AI-driven testing tools for web and mobile, covering what each one automates and where it fits in a suite.

What Maestro is, how its declarative flows differ from Appium, and how to run them against remote iOS and Android devices in the cloud.

The Selenium WebDriver exceptions you will actually hit, from NoSuchElement to StaleElementReference, what triggers each and how to prevent them.

Learn how to create a test strategy document. This is a document that outlines what needs to be tested at which stage of the build process.

Convert Mabl tests to be used with TestingBot's cloud-based browser grid. Improve performance, test coverage and reliability.

How to feed Chrome a fake webcam and microphone during automated tests, so Selenium, Puppeteer, Playwright and Cypress can drive media features.

The 15 most popular JavaScript testing frameworks ranked, with the features, pros and cons of each, from Jest and Mocha through to Cypress.

How to install and drive a browser extension end to end, with working examples for Selenium, Puppeteer and Playwright on the major browsers.

Five Python test frameworks worth knowing, PyTest, unittest, Robot Framework, Behave and Nose, and how each one pairs with Selenium.

How to run Cucumber and Selenium tests straight from IntelliJ or Eclipse, with worked examples for both IDEs and for Cucumber in JavaScript.

What causes an ElementClickInterceptedException in Selenium, how it differs from the other click failures, and how to handle it reliably.

How to record Playwright scripts from Visual Studio Code rather than writing them by hand, then run the recorded tests on a browser grid.

How to test a React site with both React Testing Library and Selenium WebDriver, and when each of the two is the right tool to reach for.

Why a test passes most of the time and fails the rest, with concrete fixes for flaky Selenium, Appium, Playwright and Puppeteer runs.

How to prompt ChatGPT into generating Selenium, Appium, Puppeteer and Playwright tests, and how far the output can be trusted as written.

How to use generative AI to produce realistic test data for Selenium runs, and why varied data uncovers bugs that fixed fixtures never will.

What changed between Appium 1 and Appium 2, why drivers are no longer bundled, and how to upgrade an existing suite with working examples.

How to write automated tests against a Tailwind CSS site when there are no semantic class names, and how to catch visual regressions.

How to automate Apple's own iOS apps with XCUITest, with code for driving Settings, Messages and Photos, and how to extend it to other apps.

How to simulate taps, swipes and pinches on real devices with Appium Touch Actions, with examples, best practices and common pitfalls.

How to use UIAutomatorViewer from the Android SDK to inspect app screens and find the selectors your automated Android tests need.

How to switch a native app between light and dark mode from an Appium test on iOS and Android, and the layout bugs dark mode tends to expose.

How to add visual regression testing to an Angular app with Cypress, comparing screenshots against a baseline to catch unintended UI changes.

How to add visual regression testing to a Python suite: creating a baseline, comparing against it, and keeping screenshots stable over time.

Why Espresso suits Android UI testing, how to add it to a project and write a first test, and how it compares with the alternatives.

How the Page Object Model keeps Appium tests readable, with a worked example, the Page Factory, @FindBy locators and when to cache lookups.

Getting started with Appium for native and hybrid app testing, with performance tips and how to troubleshoot using Appium Inspector.

How to set up IntelliJ IDEA for Selenium WebDriver: the project, browser drivers, JUnit, and running the resulting tests in the cloud.

Learn more about Internationalization Testing: how to prepare and test your website or mobile app for different regions in the world.

Playwright provides automated browser testing. It offers a built-in feature to perform visual regression testing for your website.

How to test a Flutter app with Appium: what the framework compiles to, how the Appium Flutter Driver works, and how to build an app for testing.

Find out how to perform localisation testing with mobile apps. Change your language or locale with Appium, XCUITest and Espresso.

Puppeteer combined with a test framework provides a great way to run automated browser tests. Follow this guide for more information.

How to debug a failing Cypress test using the debugger, console logs, the stack trace, and the debug and pause commands.

Handling cookies with Selenium WebDriver is a common task, since most websites use cookies. In this guide, we'll show you how to do this with Selenium.

Selenium WebDriver comes with an Action Class, which allows you to simulate user input events, such as mouse and keyboard actions.

Practical ways to get an automated test past a captcha: disable it in staging, click the reCaptcha checkbox, or solve it by hand mid-run.

How to combine Cypress with Cucumber so end-to-end tests read as plain language, including a worked example and the TypeScript setup.

TestNG is a popular Java Test Framework which allows you to write clean Selenium tests with built-in parallelisation.

A sourced, dated comparison of the four main cross browser testing clouds: what each costs to start, and what is bundled versus sold separately.

Why a site needs checking across browsers, platforms and mobile devices, and how Selenium WebDriver runs one test against all of them.

Why verifying a site by hand across every browser and device stops scaling, and what automated testing catches that manual checking misses.

So you are looking to run Selenium tests on multiple browsers and want to find out more information on how to run these tests.