---
title: Set breakpoints and debug your Workers tests with @cloudflare/vitest-pool-workers
image: https://developers.cloudflare.com/changelog-preview.png
---

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## Set breakpoints and debug your Workers tests with @cloudflare/vitest-pool-workers

Mar 13, 2025 

[ Workers ](https://developers.cloudflare.com/workers/) 

You can now debug your Workers tests with our [Vitest integration](https://developers.cloudflare.com/workers/testing/vitest-integration/) by running the following command:

Terminal window

```
vitest --inspect --no-file-parallelism
```

Attach a debugger to the port 9229 and you can start stepping through your Workers tests. This is available with `@cloudflare/vitest-pool-workers` v0.7.5 or later.

Learn more in our [documentation](https://developers.cloudflare.com/workers/testing/vitest-integration/debugging/).

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