Supported File Types and Image Requirements for NFTs on Mintable

When minting an NFT on Mintable, your preview image and media files are what make your item stand out — so it’s important to understand the supported formats and requirements before uploading.

✅ Recommended Image Dimensions

• Minimum size: 800px × 800px

• Recommended: Use high-resolution images larger than 800px × 800px for best results on listings and collection pages

• Supported formats: JPG, PNG, GIF, WEBP

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🎥 Uploading MP4 and GLB Files

Mintable also supports interactive 3D files and video files as part of your NFT preview.

File Type	Description
.GLB (3D File)	Allows users to interact with a 3D model directly in the browser
.MP4 (Video)	Lets users watch a video preview in the NFT’s item page

⚠️ Important: You must still upload a basic image (JPG/PNG/etc.) to serve as the default display image, even if you're including an MP4 or GLB file.

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🚫 File Naming Requirements

Avoid special characters in file names. The following will prevent your file from uploading:

• Symbols like: $ % * & # @ ( ) [ ]

• Non-English characters, including accented or non-Latin scripts

✅ Stick to letters, numbers, underscores, or hyphens in file names to ensure successful uploads.

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🛠️ Having Upload Issues?

If your file won’t upload, try the following troubleshooting steps:

1. Check your file name – remove any special characters

2. Disable all browser extensions except MetaMask

3. Close all Mintable tabs, refresh your browser, and try uploading again

4. Ensure your file meets size and format requirements