Open Source | 8,834+ GitHub Stars | 76 Fortune 500

Test automation that scales from
open source to enterprise.

Unified API, UI, and AI test automation — open source, self-hosted, enterprise-ready.

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Featured in the Gartner® Market Guide for API & MCP Testing Tools, March 2026

The Problem

Testing is fragmented, slow, and painful

Different tools for API tests, UI tests, mocks, and performance

Verbose code that takes longer to write than the feature itself

Tests that break every time you refactor, slowing your team down

The Karate Way

One tool. Plain syntax. Zero boilerplate.

Unified framework for API, UI, mocks, and performance tests

Readable, concise syntax that anyone on the team can understand

Built-in parallel execution, reporting, and CI/CD integration

100% Local Self-Hosted Open Source Core (MIT) Enterprise Support Guidewire Technology Partner

Trusted by teams at 650+ companies · 76 Fortune 500

Banking / Finance / Insurance Hi-Tech / Software Travel / Media / Retail Healthcare / Manufacturing
J.P. Morgan Visa Mastercard American Express Capital One Wells Fargo Barclays SAP Oracle Salesforce Adobe Dell Technologies IBM Deloitte PwC EY Accenture Walmart Boeing Toyota Nissan Delta Caterpillar Philips BASF Maersk Roche Ford Intuit Cisco Fidelity T-Mobile IKEA Trivago Expedia Guidewire GM Financial Illumina Cytel ING DBS Lowe's Comcast

Recognized by analysts, reviewers & developers

Capabilities

Everything you need to test, in one place

From REST APIs to browser automation to load testing — Karate handles it all with a single, consistent syntax.

API Testing

Test REST, GraphQL, and SOAP APIs with built-in JSON/XML assertions, schema validation, and data-driven scenarios.

Given url 'https://api.example.com'
When method get
Then status 200
And match response == { id: '#number' }
Learn more

UI Automation

Automate browsers and desktop apps with simple, readable commands. Built-in waits, retries, and visual testing.

Given driver 'https://app.example.com'
When input('#email', 'test@test.com')
And click('{^}Submit')
Then waitFor('.dashboard')
Learn more

Performance Testing

Re-use your API tests as performance tests. Run thousands of concurrent requests with built-in Gatling integration.

// Re-use existing API test
// as a performance scenario
import { karateFeature } from 'karate'
karateFeature('users.feature')
  .atOnce(100)
Learn more
Enterprise Ready

Built for scale. Designed for teams.

Everything your organization needs to adopt test automation at scale, with enterprise-grade security and support.

SSO & SAML

Integrate with your existing identity provider. SAML 2.0, OIDC, and LDAP support.

Role-Based Access

Fine-grained permissions for teams, projects, and environments.

Audit Logs

Complete visibility into who did what, when. Export-ready for compliance.

SOC 2 Compliant

Security controls and processes that meet enterprise compliance requirements.

Dedicated Support

Named account manager, SLA-backed response times, and onboarding assistance.

Self-Hosted Option

Deploy in your own cloud or on-premise. Your data never leaves your infrastructure.

Partners & Integrations

Built to work with your ecosystem

Karate plugs into the tools your team already uses — from cloud runtimes and CI/CD pipelines to IDEs, reporting, and protocols. No vendor lock-in, no rewrites.

30+

Native integrations

15+

Protocols & formats

Any

Cloud or CI/CD

Cloud & Infrastructure
AWS logoAWS
Google Cloud logoGoogle Cloud
Azure logoAzure
Docker logoDocker
Testcontainers
GraalVM
CI/CD & Build
Jenkins logoJenkins
GitHub Actions logoGitHub Actions
Maven logoMaven
Gradle logoGradle
NPM logoNPM
Quarkus logoQuarkus
IDEs & Dev Environments
IntelliJ logoIntelliJ
VS Code logoVS Code
Gitpod logoGitpod
GitHub Codespaces logoGitHub Codespaces
Spring logoSpring
Playwright logoPlaywright
Protocols & Formats
REST
GraphQL logoGraphQL
SOAP
gRPC
Kafka logoKafka
WebSocket
Reporting & Cloud Testing
JUnit logoJUnit
Cucumber logoCucumber
Allure
Xray
Report Portal
Sauce Labs logoSauce Labs
BrowserStack logoBrowserStack
LTLambdaTest
Lighthouse
Axe DevTools
SmartBear

See the Difference

Write 60% less test code

Compare the same API test written with a traditional framework versus Karate.

Traditional (RestAssured) �" 25 lines
import io.restassured.RestAssured;
import static io.restassured.RestAssured.*;
import static org.hamcrest.Matchers.*;

public class UserTest {
  @Test
  public void testCreateUser() {
    RestAssured.baseURI = "https://api.example.com";

    String body = "{" +
      "\"name\": \"John\"," +
      "\"email\": \"john@test.com\"" +
    "}";

    given()
      .contentType("application/json")
      .body(body)
    .when()
      .post("/users")
    .then()
      .statusCode(201)
      .body("name", equalTo("John"))
      .body("id", notNullValue());
  }
}
With Karate �" 8 lines
Feature: User API

Scenario: Create a new user
  Given url 'https://api.example.com/users'
  And request { name: 'John', email: 'john@test.com' }
  When method post
  Then status 201
  And match response.name == 'John'
  And match response.id == '#notnull'

80%

Faster test authoring

60%

Less code vs alternatives

10x

Faster with parallel execution

What Teams Are Saying

Loved by developers. Trusted by enterprises.

“Ease of setup, ease of writing tests even for juniors, and the fact that it uses Gherkin allows everyone to understand the tests.”

LK

Lina K.

Head of QA · Capterra verified

“Well documented and well supported. The DSL is so simple to learn. Offers a full range of automation capabilities: client-side assertions, server-side mocks and simulators, even performance testing.”

AS

Anthony S.

Team Lead / Principal Engineer · Capterra verified

“An excellent tool in all sense. Used it for both API and UI automation. Found it amazing with parallel execution, negligible flakiness, and code-less automation.”

KJ

Kanishka J.

QA Automation Lead · Capterra verified

Open source. Community driven.

Join thousands of developers who contribute to and rely on Karate every day. Star us on GitHub, submit a PR, or just say hello.

8,834+

GitHub Stars

350+

Contributors

2M+

Downloads

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