---
title: Babel
description: This doc describes the `jotai/babel` bundle.
nav: 2.04
---
## plugin-debug-label
Jotai is based on object references and not keys (like Recoil). This means there's no identifier for atoms. To identify atoms, it's possible to add a `debugLabel` to an atom, which can be found in React devtools.
However, this can quickly become cumbersome to add a `debugLabel` to every atom.
This `babel` plugin adds a `debugLabel` to every atom, based on its identifier.
The plugin transforms this code:
```js
export const countAtom = atom(0)
```
Into:
```js
export const countAtom = atom(0)
countAtom.debugLabel = 'countAtom'
```
Default exports are also handled, based on the file naming:
```js
// countAtom.ts
export default atom(0)
```
Which transform into:
```js
// countAtom.ts
const countAtom = atom(0)
countAtom.debugLabel = 'countAtom'
export default countAtom
```
## Usage
With a `babel` configuration file:
```json
{
"plugins": ["jotai/babel/plugin-debug-label"]
}
```
Examples can be found below.
## plugin-react-refresh
This plugin adds support for React Refresh for Jotai atoms. This makes sure that state isn't reset, when developing using React Refresh.
## Usage
With a `babel` configuration file:
```json
{
"plugins": ["jotai/babel/plugin-react-refresh"]
}
```
Examples can be found below.
## preset
Jotai ships with a `babel` containing the plugins created for Jotai.
## Usage
With a `babel` configuration file:
```json
{
"presets": ["jotai/babel/preset"]
}
```
## Examples
### Next.js
### Parcel