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k6 - A Modern Open-Source Load Testing Tool

k6 is an open-source, developer-centric load testing tool designed for testing the performance and reliability of APIs, microservices, and websites. It makes performance testing a core part of the engineering workflow.

Go
Added on 2025年5月11日
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k6 - A Modern Open-Source Load Testing Tool preview
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Project Introduction

Summary

k6 is a modern open-source load testing tool built with Go and JavaScript, focused on improving developer productivity and confidence in system performance.

Problem Solved

Traditional load testing tools are often complex, require specialized knowledge, and are difficult to integrate into modern development workflows. k6 addresses this by providing a developer-friendly, scriptable, and automation-ready solution.

Core Features

JavaScript Scripting

Write load tests using JavaScript, leveraging familiar syntax and environments.

High Performance

Built in Go, k6 is performant and efficient, capable of generating significant load with minimal resources.

Automation & Integration

Designed with CI/CD pipelines in mind, facilitating automated performance regression testing.

Protocol Support

Supports testing a wide range of protocols including HTTP/1.1, HTTP/2, gRPC, and more.

Tech Stack

Go
JavaScript

使用场景

k6 is versatile and can be used for a variety of performance testing scenarios:

API Load Testing

Details

Test the throughput, latency, and error rate of your REST or gRPC APIs under heavy load.

User Value

Ensure your backend services can handle expected traffic volume reliably.

Website Performance Testing

Details

Evaluate how your website performs for end-users under peak traffic conditions.

User Value

Identify bottlenecks and improve user experience by ensuring fast load times.

Performance Regression Testing

Details

Include automated performance tests in your CI/CD pipeline to catch regressions early.

User Value

Prevent performance degradation by automatically testing every code change.

System Integration Testing

Details

Test the capacity and robustness of your entire system or microservices architecture under various load patterns.

User Value

Validate the performance of interdependent services and the overall system capacity.

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