What file formats can I use to make NFTs? Is there a maximum size? You can use a variety of file formats for images, videos, audio or even 3D models to make your NFT (see below).The maximum file size supported is 100MB, but we recommend keeping it under 100MB for faster load times. Related articles How do I create an NFT? How do I sell an NFT? How do I change the supply quantity? What's a 'mintable' collection? What is a verified account or badged collection?