polkadot{.js}

polkadot{.js} provides a set of tools and interfaces for interacting with the Polkadot and Substrate networks. It includes user‑friendly wallet integrations such as SubWallet, Talisman, and Nova Wallet, available as desktop downloads, mobile apps, or web extensions, allowing users to manage accounts and conduct transactions across the ecosystem.

For developers, the package offers a developer signer, an interactive interface, and a collection of libraries that cover APIs, cryptographic utilities, and other tooling needed to build, deploy, and interact with Polkadot‑based applications. Documentation and code repositories are linked directly from the site, giving a clear starting point for development work.

The project also maintains a community‑curated phishing list that identifies malicious URLs and addresses, which is incorporated into wallets and extensions throughout the ecosystem to help users avoid fraudulent actors. It is a stable, macOS‑compatible core component aimed at both end‑users and developers working with Polkadot and Substrate.