Espresso vs Karate
Espresso
developer.android.com
Karate
karatelabs.ioSide by side
| Figure | Espresso | Karate |
|---|---|---|
| Price from | Free | $8.33/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | Yes |
| Web | Yes | — |
| Windows | — | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| iOS | Yes | — |
| Android | Yes | — |
| API | — | Yes |
| Self-hosted | — | Yes |
| Plans published | 1 | 5 |
| Spec score · Automated Testing | 8.8 (#4) | 9.2 (#2) |
| License | The Espresso source repository is public and identifies its license as Apache-2.0. | The core Karate framework is MIT licensed and free forever; enterprise components use a commercial license. |
| Purpose | Espresso provides APIs for writing concise Android UI tests that simulate user interactions with Views. | Karate combines API, UI, mock, and performance testing in one framework with readable syntax. |
| Support | The project directs general questions to its AndroidX Test Discuss mailing list and specific questions to Stack Overflow, while using GitHub issues for feature requests and bugs. | The free tier includes community support, Pro includes priority email support, and Enterprise includes commercial support with an SLA and dedicated Slack channel. |
Plans
Karate
- FreeFree
- IDE Plus$100 a year
- Xplorer Premium$200 a year
- Pro$640 a year
- Karate EnterprisePriced on request
In their own words
Espresso
Espresso is a free, open-source framework for writing automated user-interface tests for Android apps. Before a test acts or checks a screen, it waits for the app’s message queue, AsyncTask work and developer-defined idling resources to become idle. Its packages cover core testing, WebView components, idling resources, intents and other testing support. Espresso-Web tests Android WebViews, while Espresso-Intents can validate and stub app intents. Multiprocess Espresso supports interactions across processes within an app, but it requires Android 8.0/API 26 or later and does not test external processes. Tests run in Android Studio or from the command line with Gradle; installation uses the SDK Manager and Gradle, and Android Studio is recommended. The framework supports Android 4.0.1/API 14 or higher. Test Recorder can capture device interactions and assertions to generate a UI test, while AccessibilityChecks can evaluate views during actions. The listed stable release and core dependency are version 3.7.0. Espresso is Apache-2.0 licensed.
Karate
Karate is a testing framework for API, UI, mock, and performance work. Its MIT-licensed core is free for commercial projects and supports REST, GraphQL, and SOAP testing, with JSON and XML assertions and schema validation. It can automate browsers and desktop apps, and combine UI and API steps in one test. Built-in Gatling integration lets teams reuse API tests for performance testing. The Free plan costs nothing and includes community support. Paid plans include IDE Plus at $100 a year, Xplorer Premium at $200 a year, and Pro at $640 a year; Pro adds IDE plugins, debugging, enhanced autocomplete, development async protocol testing, and priority email support. The platform lists integrations including AWS, Google Cloud, Azure, Jenkins, GitHub Actions, Maven, Gradle, Docker, IntelliJ, VS Code, and Gatling. Enterprise async protocol testing covers Kafka, gRPC, and WebSocket, but production CI/CD execution requires an Enterprise runtime license. Platforms include API, extension, Linux, macOS, self-hosted, and Windows.