ERC-721 vs ERC-1155: Choosing an NFT Token Standard

Before an NFT ever reaches a marketplace, a decision gets made at the smart contract level that most creators never think about: which token standard the contract follows. The two dominant choices on Ethereum and other EVM compatible chains are ERC-721 and ERC-1155. Picking between them affects gas costs, how your collection is structured, and how it behaves once it is live. This guide breaks down what each standard actually does, in plain terms.

What Is a Token Standard?

A token standard is a technical specification that defines how a smart contract tracks ownership, transfers, and metadata for tokens. Standards matter because wallets, marketplaces, and apps need a predictable interface to display and trade tokens correctly. If a contract follows a recognized standard, it can be read by any compatible wallet or marketplace without custom integration work. ERC-721 and ERC-1155 are both Ethereum Improvement Proposals, and both are supported on other EVM networks such as Polygon, Base, and Arbitrum.

ERC-721: One Token, One Identity

ERC-721, introduced in 2018, is the original standard built specifically for non-fungible tokens. Each token minted under an ERC-721 contract has a unique ID and its own metadata record, typically pointing to an image or file plus a set of attributes. No two tokens in an ERC-721 contract are interchangeable, even if they came from the same collection. This is the standard behind most single edition digital art, profile picture collections, and one-of-one pieces, because it enforces true uniqueness at the contract level.

ERC-1155: Multiple Token Types in One Contract

ERC-1155, developed by the Enjin team and finalized in 2019, takes a different approach. A single ERC-1155 contract can manage many different token types at once, and each type can have its own supply. That supply can be one, making it behave like a unique NFT, or it can be in the thousands, making it behave more like a limited edition print. Fungible and non-fungible tokens can coexist in the same contract. This is what makes ERC-1155 useful for collections with multiple editions, game items, or sets of related assets that do not each need a separate contract deployment.

Batch Operations and Gas Efficiency

One of the practical advantages of ERC-1155 is batch transfers. A creator or collector can move several token types in a single transaction instead of one transaction per token. On networks where gas fees scale with the number of transactions, this can meaningfully reduce costs for anyone minting or managing a larger collection.

Key Differences at a Glance

• Uniqueness: ERC-721 tokens are always one of one within their ID. ERC-1155 tokens can have any supply, from one to unlimited.
• Contract scope: ERC-721 typically manages one collection per contract. ERC-1155 can manage many token types in a single contract.
• Gas costs: ERC-1155 batch operations generally cost less gas than minting or transferring the same number of ERC-721 tokens individually.
• Common use cases: ERC-721 fits one-of-one art and unique collectibles. ERC-1155 fits multi-edition drops, game items, and mixed collections.

Which Standard Should You Choose?

Choose ERC-721 if

You are minting truly unique, single edition pieces where the value proposition is that no other token is identical, such as individual photography prints or one-of-a-kind generative art outputs.

Choose ERC-1155 if

You are releasing a collection with multiple copies of the same design, a set of items with varying supply levels, or you plan to mint frequently and want lower gas costs per transaction.

Compatibility With Marketplaces and Wallets

Both standards are widely supported by major marketplaces and wallets, so compatibility is rarely the deciding factor today. What differs is how each marketplace displays supply and editions. Some interfaces present ERC-1155 editions more clearly than others, so it is worth checking how a marketplace handles multi-edition listings before committing to a large ERC-1155 drop.

You Do Not Need to Choose Manually

Most creators never write a smart contract by hand. Minting tools handle the standard selection behind the scenes based on the type of collection being created. If you are getting started, understanding the difference still helps you make an informed choice when a tool asks whether you are minting a single edition or a multi-edition collection.

Simple NFT Creator lets you mint NFTs from your phone without writing any code, so you can focus on the collection itself rather than the underlying contract details. It is available for both iOS and Android on the App Store and Google Play.