OpenBrush is a library for smart contract development on ink! It provides standard contracts, as well as useful contracts and macros to help you build ink! smart contracts.

Sol2ink is a tool for easy migration from Solidity to ink! and Rust, helps projects and teams migrate their smart contracts from popular Solidity to Polkadot`s ink!.

Typechain is a tool that generates type-safe TypeScript interfaces for ink! smart contracts, to improve blockchain and front-end development

OBCE

Chain extensions are a way to extend the functionality available to smart contracts on a given node. It allows your smart contracts to directly use the features of the chain it was deployed on.

cargo-contract

cargo-contract is a command-line (CLI) tool which helps you set up and manage WebAssembly smart contracts written with ink!. You can find it here on GitHub and here on crates.io.

Phat Contract

Phat Contract is a kind of decentralized program instead of the smart contract, which supports real-time computation-intensive tasks and have the access to all the services even they are out of the blockchains.

substrate-contracts-node

The substrate-contracts-node is a simple Substrate blockchain which is configured to include the contracts pallet.