Vetted Score

4.7 / 5.0

Scored 4.7/5 due to its open‑source flexibility, strong JavaScript ecosystem, cloud scalability, and comprehensive protocol coverage, making it a top choice for developers and QA teams.

Key Features

Scriptable Load Tests

Write tests in JavaScript using familiar syntax, enabling version control, CI/CD integration, and reusable modules.

Cloud Execution & Scaling

Run distributed load tests on K6 Cloud with automatic scaling, detailed metrics, and real‑time dashboards.

Extensive Protocol Support

Native support for HTTP/1, HTTP/2, WebSockets, and gRPC, plus plugins for custom protocols.

Frequently Asked Questions

The CLI is 100 % free and open source; K6 Cloud provides a free tier and paid plans for larger scale testing.

K6 runs natively on Windows, macOS, Linux, and can be executed in Docker containers.

Yes, K6 tests can be scripted in JavaScript and invoked from any CI/CD tool, with results exportable to popular monitoring platforms.

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Specifications

Pricing Model Core CLI is free and open source; the K6 Cloud offers a free tier and paid plans starting at $49 USD per month for higher load capacity and enterprise features.

Supported Platforms

Windows 10/11macOSLinuxDocker