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devtools

Simplify Testing with Karate

Faster test automation for founders, backed by 8.9k+ GitHub stars
intermediateโฑ 30 minutes๐Ÿ’ต Free (self-hosted)
8,896 stars2,040 forksJavaQuality 9/10Updated 7/14/2026100% free ยท open source
What it is

Test your APIs with scripts that behave like a user, checking that everything works as expected.

What you can make with it

Automations like: when a new customer creates an account on your website via Stripe, verify that their info is correctly saved in your Google Sheets or Notion.

How it helps

Karate simplifies test automation by combining features like assertions and API testing in one easy-to-learn platform, saving you time and effort in ensuring your API works correctly.

Real use case example

"A founder can use Karate to automate testing of their e-commerce checkout API: she creates a test in Karate that sends a mock credit card payment, then verifies that the payment is processed correctly via Stripe webhook. She runs the test to catch bugs, and Karate tells her the errors she needs to fix. With Karate, she can test and fix this crucial API flow in just a few lines of code."

If you're new

Start with this if you're new to API testing and automation and want a straightforward approach.

If you're senior

Expert engineers will reach for Karate when they need a fast and maintainable way to automate multiple APIs and ensure their quality.

Common confusion cleared up

Don't confuse Karate with other BDD frameworks like Cucumber, as Karate is specifically designed for API testing and automation.

Pairs with
Stripe webhookNotion databaseGoogle Sheets
Why we list it on WorkflowStacks: It's here because it saves development time compared to building custom test frameworks.
What it does

Karate simplifies testing of APIs and web services, making it easier to ensure your application works as expected

When to use it
  • โ€ขWhen you need to test APIs and web services quickly and reliably
  • โ€ขWhen you want to automate testing of your application's backend
  • โ€ขWhen you need to integrate testing into your continuous integration and deployment pipeline
Quick start
  1. 1Add the Karate dependency to your Java project
  2. 2Create a new Karate test class and define your test scenarios
  3. 3Use Karate's APIs to send requests and verify responses
  4. 4Run your tests using the Karate test runner
Ready-to-paste prompt
Feature: hello world
  Scenario: say hello
    * url 'https://httpbin.org/get'
    * method get
    * status 200
Saves to your device

Topics

api-testing
assertions
automated-testing
automation
bdd
contract-testing
cucumber
developer-tools
load-testing
microservices
mock-server
test-automation
testing
testing-framework
testing-tools
webdriver
What's inside โ€” free to inspect
No purchase needed

Read the entire source before you build โ€” unlike paid marketplaces that hide it behind a buy button.

8
top-level files
10
folders
34.6M
repo size
MIT
license
Key files
README_V2.md
README.md
File tree
.devcontainer/
.github/
docs/
etc/
karate-core/
karate-gatling/
karate-image/
karate-js/
karate-js-test262/
karate-junit6/
.gitignore
CLAUDE.md
CONTRIBUTING.md
LICENSE
pom.xml
README_V2.md
README.md
SECURITY.md
Quick Actions
Details
Creator
karatelabs
Language
Java
Category
devtools
Published
2/7/2017

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