Is There a Standard Size for NFTs?

NFTs—non-fungible tokens—have been around since the year 2014, but until recently hadn’t garnered much notice. Now, this creative form of making money has taken the world by storm. What size do your NFTs need to be in order to start making money from them? 

There is not a standard size for NTFs, though there is a maximum file size you can upload to each NFT Minting Platform, as well as specific file types. Sites such as OpenSea require that your NFT files be no larger than 100MB. 

In the rest of this article, I will explain which types of file formats can be used when creating your own NFT. I’ll go over the different minting platform requirements, and which NFT files work best for uploading on NFT selling platforms. 

What File Formats Can Be Used for NFTs?

Before uploading your creative work, it’s essential to know what types of files are accepted on your minting platform of choice. 

You can use the file formats GIF, JPG, PNG, SVG, WAV, OGG, GLB, GLT, WEBM, MP3, and MPS for your NFTs. The file format requirements can vary depending on the minting platform you are uploading to. 

Each platform will be slightly different, as will the different types of NFTs you wish to upload. It’s essential to do your research and double-check before uploading your NFT. 

NFT Platform Upload Requirements

There are several popular minting platforms to choose from when posting and selling your NFTs on the world wide web. Let’s go over the uploading requirements for each of them so you’re covered no matter what you choose. 


OpenSea is among the most popular minting platforms due to its huge size. In addition, it has a very streamlined process for uploading your NFTs and getting paid. 

Here’s what you should know about OpenSea: 

  • The maximum file upload size is 100MB. 
  • It’s free for creators to upload their content. 
  • Creators receive royalties on every sale after the first sale. 
  • You can upload images, videos, audio, and 3D model files. 
  • It is an excellent choice for those who are new to NFTs. 
  • Charges a standard fee of 2.5% of each sale made. 

OpenSea is the leading platform for NFT sales and is a great place to start for those looking to break into this cryptocurrency world. 


Mintable started up in 2018 and has become the second-largest NFT uploading platform. Let’s dive into what you should know about it: 

  • The maximum file upload size is 200MB. 
  • It’s free to mint your NFT on the blockchain. 
  • You can upload images, 3D files, and mp4 videos. 
  • A pro package is available for purchase that will advertise your listings. 
  • Reasonably easy to use for beginners. 
  • You will be charged 2.5% for regular NFT sales. 
  • Gasless items will be charged 5% of your sale. 
  • Printable versions of your NFT will be charged 10%. 

Mintable is a strong competitor in the NFT sales market and is a great option to try out if you want to break into selling NFTs. 


The next NFT trading platform that you should know about is Rarible. This great platform is pretty straightforward:

  • The maximum file upload size is 30MB. 
  • You win royalties on sold NFTs. 
  • You can upload PNG, GIF, WEBP, MP4, or MP3 files. 
  • Charges a 2.5% fee to both the buyer and seller on every transaction. 

Raribles’ website is pretty easy to use and a great option to order to diversify where you are selling your NFTs. 


Up next, we have KnownOrigin, a platform primarily dedicated to trading crypto art. If you’re an artist looking to break into the digital art world, KnownOrigin is an excellent option for you. 

Here’s what you should know about KnownOrign: 

  • Maximum file upload size of 75MB. 
  • Creators are only allowed to post 30 uploads every 30 days. 
  • You can upload images, videos, audio, and 3D model files. 
  • Charges 15% on each sale. 
  • You win royalties each time your NFT is sold. 

KnownOrigins commission rate is a little higher than some of the other minting sites, but they do a great job of helping you advertise your digital products so that you can make regular sales. 


Foundation is a relatively new company, having just launched in 2021 as NFTs began gaining in popularity. 

What you should know about Foundation: 

  • Maximum file upload size of 50MB. 
  • You can only sell on this site if you have been invited to do so. 
  • You can upload JPG or MP4. 
  • Charges a 5% marketplace fee on all transactions. 

Foundation can be a bit tricky to join since posting on this NFT site is by invitation only. This means that someone who is already a member of the community must invite you to join in order for you to be able to post your NFTs.


Last but not least, I will be talking about SuperRare. This platform has been around since 2018 and has been garnering steam ever since. It’s primarily geared toward digital artwork. 

Here’s what you need to know about SuperRare: 

  • Maximum file upload size is 50MB. 
  • Royalties are paid every time your NFT is sold. 
  • You can upload images, videos, audio, and 3D model files. 
  • Charges a 15% commission fee on all sales. 

This platform is pretty easy to use, though the high commission fee can be a drawback if you aren’t making regular high-paying sales. Still, it doesn’t hurt to have a few NFTs on different sites to try them out. 

The Best File Types To Use for NFTs

Now that you are familiar with the different minting platforms on the market right now, you might be wondering just how you go about formatting your NFTs for those sites. 

When it comes to selecting a file type for your non-fungible tokens images, PNGs are king. These high-fidelity files are can easily be viewed on most devices and can be compressed to small sizes with minimal quality loss. 

When it comes to selecting a file format for video, MP4 is the most recommended file type. It’s easy to use and results in a more compressed file without compromising too much of the video’s original quality. 

You can undoubtedly upload other file types on most platforms, but MP4 and PNG files are the most common choices. They can be easily opened and used on most devices. 

If you are looking to learn a little more about NFTs and how they work, you should definitely consider reading NFT (Non Fungible Tokens) Investing Guide for Beginners to Advance (available on Amazon). This book offers great insight on this new crypto trading trend. 


Ultimately, the size of your NFT files will be up to you and the platform you are choosing to upload them on. Each site will have different size parameters as well as preferred file types. Most have a limit of about 50-100 MB. 

If you want to play it safe, using MP4 files for videos and PNG files for images is the best way to go, especially if you are just starting out creating NFTs. This will ensure that your digital files are easy to open and retain their quality without being too large. 


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