A list of implementations of the ERC721 standard
- OpenZeppelin's ERC721 - Most commonly used and most battle-hardened implementation
- Chiru Labs' ERC721A - Gas-optimized implementation with a few setbacks
- Exo Digital Labs' ERC721R - Adds refund functionality
- RogerPodacter's ERC721R - Pseudo-random token IDs designed to prevent rare mint snipers
- Estariolvetch's ERC721Psi - Builtin randomized metadata generation based on ERC721A
- Meta Penguin Island's ERC721X - Better-optimized ERC721A (code)
- Henry Yeung's ERC721Copy - Allows owners to distribute copies of their tokens
- 0xPhaze's ERC721M - Optimized for staking
- Charged Particle's ERC721i - Optimized for minting millions of tokens
A list of resources related to ERC721
- ERC721 Standard - The official ERC721 standard
- ERC721 Token Standard - Ethereum.org's documentation on the ERC721 standard
- ERC721 Standard on OpenZeppelin - OpenZeppelin's documentation on the ERC721 standard
- OpenSea Metadata Standards - OpenSea's documentation on how to implement ERC721 metadata
- How to Create an ERC-721 NFT? - A guide on how to create an ERC721 token