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redhat-developer/vscode-extension-tester

ExTester: Your Essential UI Testing Companion for Visual Studio Code Extensions! Seamlessly execute UI tests with Selenium WebDriver, ensuring robustness and reliability in your extension development journey. Simplify UI testing for your VS Code extensions and elevate the quality of your user interface effortlessly.

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What it does

ExTester is an automated testing tool that checks whether Visual Studio Code extensions (add-ons that enhance the popular code editor) actually work correctly from a user's perspective, simulating real clicks and interactions just like a human tester would. Built by Red Hat, it helps development teams catch visual and functional bugs in their VS Code extensions before releasing them to users.

Why it matters

For teams building products on top of VS Code — one of the world's most widely used development environments — shipping a broken or buggy extension can damage user trust and adoption, making automated quality checks like this essential to a reliable release process. With 315 stars and contributions from 31 developers, this open-source tool reflects a growing market of companies investing in VS Code extensions as a core part of their developer-facing product strategy.

16Active

On the radar — signal detected

Stars
317
Forks
84
Contributors
35
Language
TypeScript

Score updated Feb 27, 2026

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