A browser extension for managing Polkadot/Substrate accounts and signing transactions for decentralized applications.
Polkadot{.js} Extension is a browser extension that allows users to manage their Polkadot and Substrate network accounts securely. It solves the problem of securely signing blockchain transactions from decentralized applications (dapps) by injecting a standardized signer interface into web pages, eliminating the need for users to expose private keys.
Polkadot/Substrate dapp developers who need a secure way for users to sign transactions, and blockchain users who want a browser-based wallet for managing their accounts.
Developers choose this extension because it provides a lightweight, standards-compliant signer that integrates seamlessly with the Polkadot-js API, supports multiple extensions simultaneously, and focuses solely on security and interoperability without unnecessary wallet features.
Simple browser extension for managing Polkadot and Substrate network accounts in a browser. Allows the signing of extrinsics using these accounts. Also provides a simple interface for compliant extensions for dapps.
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Focuses solely on account management and signing, reducing attack surfaces by avoiding bloat—the README emphasizes it 'only manages accounts and allows the signing of transactions'.
Designed for multi-extension support, allowing dapps to work with multiple compliant signers simultaneously, as highlighted in the 'API interface' section promoting an open ecosystem.
Supports hard/soft derivation paths and password-protected mnemonics from tools like Subkey, enabling complex account setups without external utilities.
Available for Chrome and Firefox with clear build instructions, ensuring broad accessibility for users and developers across major browsers.
Does not construct or submit transactions to the network, requiring dapps or users to handle these steps separately—the README admits it 'does not perform wallet functions'.
Building from source involves multiple steps like enabling corepack and using yarn, which can be cumbersome for quick testing or contributions, especially for Firefox.
The injection interfaces are noted to potentially change, and low-level access without convenience wrappers might lead to breaking changes in dapp integrations.