Selenium vs Karate

Selenium and Karate are popular tools for automated testing, although they take different approaches and serve other objectives.

Selenium	Karate
Selenium is generally used for testing web applications. It lets you connect with online browsers, automating button clicks, form filling, and page navigation operations.	Karate is a testing framework that may be used for web and API testing. It has a simpler syntax and built-in features created expressly for API testing, making writing and running tests easier.
Selenium supports programming languages such as, Java, Python, C#, Ruby, and JavaScript. It is commonly used with testing frameworks such as JUnit or TestNG.	Karate is developed on top of the Cucumber framework and has a bespoke syntax similar to the Gherkin language. It primarily uses Java and provides a uniform API and online testing framework.
To communicate with multiple web browsers, Selenium requires a separate driver, such as ChromeDriver for Google Chrome or GeckoDriver for Mozilla Firefox. For test execution, these drivers must be properly installed and configured.	Karate includes a built-in HTTP client for API testing and relies on the underlying Java libraries for web automation. It manages browser interactions internally, so no external drivers are required.
Selenium requires a different driver to communicate with multiple web browsers, such as ChromeDriver for Google Chrome or GeckoDriver for Mozilla Firefox. These drivers must be correctly installed and configured for tests to run.	Karate contains a built-in HTTP client for API testing and relies on the underlying Java libraries for web automation. It maintains browser interactions internally, so there is no need for external drivers.
Selenium has been around for some time and has a sizable user base. It has many modules, frameworks, and plugins that extend its capability and support numerous testing scenarios.	While Karate is newer than Selenium, it has acquired appeal because of its simplicity and ease of usage. It has an active community and constantly evolves with new features and improvements.