Best Cross-Browser Testing Tools for Microsoft Teams

Engineering teams shipping with AI have a new bottleneck: validation. Code output has accelerated. Quality hasn't. Checksum closes the gap. Checksum is a continuous quality platform with a suite of AI agents that handle testing end-to-end, at every stage of the development lifecycle. Where most tools wait for a human to trigger them, Checksum runs autonomously in the background, generating tests, executing them, and repairing failures without manual intervention. Seventy percent of test failures are resolved automatically through real-time auto-recovery. The platform covers every layer: end-to-end UI flows via Playwright, API endpoint chains, and targeted CI tests scoped to exactly what changed in a PR. All tests land as real code in your repository and are delivered as standard Playwright, owned by your team. Checksum is fine-tuned on 1.5+ million test runs and integrates natively with Cursor, Claude Code, and 100+ AI coding agents. Type /checksum and your coding agent's output gets tested before it ever reaches review. Generation and healing happen on Checksum's cloud infrastructure which means no LLM tokens consumed, no local resources required. The result: test suites that stay green as the product evolves, fewer regressions reaching production, and release confidence that scales alongside AI output.

Virtuoso QA is an AI-native test automation solution built to streamline and scale enterprise quality assurance processes. It allows users to author tests in natural language, making it accessible for both technical and non-technical team members. The platform leverages self-healing AI to automatically adapt to changes in applications, reducing test flakiness and maintenance overhead. With features like live authoring, real-time execution, and automated diagnostics, teams can quickly identify and resolve issues. Virtuoso QA supports continuous testing across multiple browsers, devices, and environments, ensuring comprehensive test coverage. It integrates seamlessly with popular tools such as Jira, Jenkins, Azure DevOps, and BrowserStack, enabling smooth CI/CD workflows. The platform also provides detailed analytics and dashboards to track performance and optimize testing strategies. By automating test generation and execution, it significantly reduces manual effort and accelerates release cycles. Virtuoso QA empowers organizations to deliver high-quality software faster and more reliably.

Testsigma is a low-code end-to-end test automation platform for Agile teams. It lets SDETs, manual testers, SMEs, and QAs collaboratively plan, develop, execute, analyze, debug, and report on their automated testing for websites, native Android and iOS apps, and APIs. It is available as a fully managed, cloud-based solution as well as a self-hosted instance that is open source (Testsigma Community Edition). The platform is built with Java, but the automated tests are code-agnostic. Through built-in NLP Grammar, teams can automate user actions in simple English, or generate airtight test scripts with the Test Recorder. With features like built-in visual testing, parametrized or data-driven testing, 2FA testing, and an AI that automatically fixes unstable elements and test steps, identifies and isolates regression-affected scripts, and provides suggestions to help you find and fix test failures, Testsigma can replace tens of different tools in the QA toolchain to enable teams to test easily, continuously, and collaboratively.

Endtest is an agentic AI platform for end-to-end test automation that helps teams create, run, maintain, and scale automated tests faster, without writing code. Teams can build tests manually, record browser actions, import files, or generate editable steps with the Endtest AI Test Creation Agent. Unlike generic AI tools that produce fragile code or black-box results, Endtest creates standard steps that users can review, modify, reuse, and execute like any other test. Endtest supports web, mobile, API, database, email, SMS, file, visual, accessibility, cross-browser, geolocation, and CI/CD testing. It is useful for QA teams, developers, product managers, founders, and organizations that want reliable automation without a custom framework. The platform includes AI-powered test maintenance, migration from other tools, file imports, and self-healing capabilities that reduce broken tests when apps change. Tests run in the cloud across browsers, operating systems, resolutions, and geolocations, helping teams validate user journeys. With unlimited AI usage and unlimited test executions, Endtest gives teams a predictable way to adopt AI-powered testing at scale without tokens, credits, or usage limits. By combining agentic AI, low-code automation, broad coverage, and editable steps, Endtest helps teams ship more reliable software faster while keeping full control over testing.

Next-gen browser for building, testing and debugging mobile websites. You can test the website on various pre-installed mobile device views ports. LT Browser is a mobile browser that allows you to view the website in both iOS and android resolutions. Can't find your favorite device? LT Browser allows you to create your own device view port and save it for later use. You can create new mobile, tablet, or desktop devices to test your website. You can also test the screen resolution on different devices. Screen resolution testing can be done on different screen sizes. Mobile website testing doesn't require you to switch between two devices. LT Browser allows you to test two devices simultaneously. You can perform mobile website testing on different sizes of tablet and desktops, and inspect websites on different resolutions simultaneously. LT Browser includes DevTools that allow you to simultaneously test responsiveness on multiple devices. You can test website on different resolutions using separate DevTools.