> For the complete documentation index, see [llms.txt](https://docs.truffle.wtf/truffle-help-center/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.truffle.wtf/truffle-help-center/utilities/json-generation.md).

# JSON Generation

Struggling to generate the JSON files for your generative drop, or just unsure what JSON even is? Truffle has a tool to help generate everything you need following the Metaplex Standard! You can find this feature under  "Utilities" on side menu, followed by "JSON Generation".

<figure><img src="/files/oaknjCFPjVVAg8N997fI" alt=""><figcaption></figcaption></figure>

### Providing Images

<figure><img src="/files/brVDv3KvEGmuc3aY4w5r" alt=""><figcaption></figcaption></figure>

Once you are in the tool, you'll need to provide the images you'd like to generate the JSON files for. We support the following image formats: png, jpg, svg and gifs which can be of any size. The images must be named sequentially starting from 0, for example: 0.png, 1.png, 2.png and so on. &#x20;

{% hint style="info" %}
Depending on the number of images and the size, it might take a while to load them into the UI so please be patient.
{% endhint %}

### Default Details

#### Basic

<figure><img src="/files/epqR9vsZyeZu6WbGyLBl" alt=""><figcaption></figcaption></figure>

From the Basic tab you can add the base details for your collection, these details will be used for each NFT unless if they have been overridden:

* Name ( as well as if you want to include the incremented number along with the name )
* Description
* Link
* Traits ( which will be added on all the NFTs )

#### Advanced

<figure><img src="/files/5I3lTKLaGsyNrsxe9722" alt=""><figcaption></figcaption></figure>

On the Advanced Tab if you have a single asset which you'd like to duplicate the JSON files for with the correct details you can.&#x20;

### Overriding Default Details

<figure><img src="/files/5LNVPFrgHnESeH14Krrs" alt=""><figcaption></figcaption></figure>

By clicking on one of the images on the left panel, the right panel will change allowing you to override the specific details which includes:&#x20;

* Name
* Description
* Link
* Traits ( where you can choose to override the default traits or have these traits along side the default ones )

{% hint style="info" %}
Want to get back to the default details panel? Just click on the selected image and you will be shown the default details panel.&#x20;
{% endhint %}

### Generate

Once all the values have been entered simply click `Generate` and a zip of the JSON files will be downloaded ready to be used in Truffle.