IETester Alternatives & Competitors

BrowserStack is a software testing platform for developers to comprehensively test websites and mobile applications for quality. .

Key BrowserStack features:

Cloud-based Browser Extensions SaaS

Open Source freemium $29.0 / Monthly (Starts at single user plans and billed annually)

Browser Testing made simple! Run automated, visual, and manual tests on 1500+ real browsers and mobile devices. Test more browsers, in less time.

Key CrossBrowserTesting features:

Wide Range of Browsers and Devices Live Testing Automated Testing Integration Visual Testing

Shared cloud environments for AI coding agents. Run Claude Code, Cursor CLI, Codex, and Gemini CLI from any device, API, or automation tool.

Key CloudCLI features:

Multi-Agent Support Git Integration Persistent Cloud Sessions Web UI & Mobile App

Try for free Open Source paid Free Trial €7.0 / Monthly

Live interactive cross-browser testing from your browser.

Key browserling features:

Cross-Browser Testing Live Interaction No Installation Security

Test mobile or web apps instantly across 700+ browser/OS/device platform combinations - without infrastructure setup.

Key Sauce Labs features:

Extensive Browser and OS Coverage Real Device Testing Integration with CI/CD Tools Detailed Reporting

Browsershots makes screenshots of your web design in different browsers.

Key Browsershots features:

Wide Browser Coverage Free to Use Screenshot Capability No Installation Required

litmus tests and tracks your email campaigns, so you can always put your best design forward.

Key Litmus features:

Email Previews Spam Testing Analytics Integration Capabilities

Responsive Web Design, Mobile & Cross-Browser Compatibility Testing Software.

Key MultiBrowser features:

Comprehensive Testing Automation Features Live Testing Local and Cloud Testing

LT Browser is a free dev friendly browser for developers and testers. You can see mobile view of website on different screen sizes and resolution on 50+ pre installed view ports. You can build, test and debug your website faster then ever.

Key LT Browser by Lambdatest features:

Responsive Testing Pre-built Device Viewports Local Testing Network Throttling

webcheck.me Free online website scanner. Checks security, seo, performance and mail problems.

Key webcheck.me features:

Ease of Use Comprehensive Analysis Quick Reports Accessibility

World’s first full-stack Agentic AI Quality Engineering platform.

Key TestMu AI (Formerly LambdaTest) features:

Selenium Grid For Mobile Web-Automation Testing Selenium Web Testing Automation Parallel Testing For Goto Market Launch API for Continuous Testing

Open Source freemium $15.0 / Monthly

10x faster UI testing without a line of code.

Key Screenster features:

Ease of Use Visual Regression Testing Cloud-Based Team Collaboration

The browser for designers and developers.

Key Sizzy features:

Browser Synchronization Development Tools Integration Customizable Viewports Live Reload

paid $7.0 / Monthly

Equafy is a comprehensive suite of tools that allow you to test a website with a high level of accuracy and automate much of your testing process.

Key Equafy features:

Cross-browser Testing Cloud-based Solution Automated Test Execution Integration Capabilities