---
title: npm-find-dupes
section: 1
description: Find duplication in the package tree
---

### Synopsis

```bash
npm find-dupes
```

### Description

Runs `npm dedupe` in `--dry-run` mode, making npm only output the
duplications, without actually changing the package tree.

### See Also

* [npm dedupe](/cli-commands/dedupe)
* [npm ls](/cli-commands/ls)
* [npm update](/cli-commands/update)
* [npm install](/cli-commands/install)