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A powerful debugger for Karate API tests. Set breakpoints directly in your .feature files, step through scenarios including Java and JavaScript code, inspect variables, and run tests with a single click.

Features

• Breakpoint Debugging for Karate, Java, and JavaScript - Debug Karate, Java, and JavaScript code in the same session. Set breakpoints in .feature, .java, and .js files. Step through your tests line by line.

• Hot Reload Variables - Modify variable values on-the-fly while paused at a breakpoint. Right-click any variable in the Variables panel and set a new value.

• Match Diagnostics - See pass/fail highlights on match statements with actual values inline. One-click fixes to update expected values from actual results.

• One-Click Test Execution - Gutter icons appear next to every Feature and Scenario, letting you debug with a single click.

• Feature Explorer - Browse all your Karate features and scenarios in the Karate tool window. Navigate your test suite at a glance and run any test directly.

• Environment Switching - Quickly switch between environments (dev, qa, stage, or custom) from the status bar. Your selection persists across sessions.

• Syntax Highlighting - Full syntax highlighting for the Karate DSL, including Gherkin keywords, JSON/XML payloads, JavaScript expressions, and embedded variables.

• File Navigation - Clickable file references throughout your feature files. Ctrl+Click to navigate to classpath: files, read() targets, and @tag references.

• Log Breakpoints - Pause execution when specific strings appear in log output. Useful for catching exceptions or error messages without setting traditional breakpoints.

• Log Filtering - Hide noisy log output by configuring exclude patterns. Filter out verbose framework messages to focus on what matters.

• Conditional Breakpoints - Set conditions on breakpoints using JavaScript expressions.

Configuration

Configure the plugin via Settings > Tools > Karate Debug:

• Environments - List of available Karate environments (comma-separated) • Default Environment - Environment used when starting a debug session • Log Level - Log level for Karate Debug output (error, warn, info, debug, trace) • Match Diagnostics - Show passing/failing highlights and actual values • Log Filter - Comma-separated strings to hide from log output • Log Breakpoints - Comma-separated strings that pause execution when found in logs

Step Filtering (Java Debugging)

Control which code is shown when stepping through Java code:

• Show JDK Classes - Step into JDK core classes (java.*, javax.*, jdk.*, sun.*, com.sun.*) • Show Karate Framework - Step into Karate framework classes (com.intuit.karate.*) • Show Karate Dependencies - Step into Karate's third-party dependencies (jsonpath, netty, slf4j, etc.)

When unchecked (default), stepping into framework code will automatically step out and return to user code.

Getting Started

• Open a project containing Karate tests • Open a .feature file • Set breakpoints by clicking in the gutter • Click the debug icon in the gutter or use the Karate tool window

Requirements

• Java 17+ (Java 21 recommended) • Maven or Gradle project with Karate dependencies

Early Access Program (EAP)

Want to try new features before they're released? Join our EAP channel:

• Go to Settings > Plugins > ⚙ (gear icon) > Manage Plugin Repositories • Click + and add: https://plugins.jetbrains.com/plugins/eap/list • EAP versions will now appear in the plugin updates

EAP versions may contain experimental features and are updated more frequently.

Resources

• Website - Documentation and getting started guides • Report a Bug • Request a Feature • Contact Us • License - End User License Agreement

Description from the JetBrains Marketplace listing.