polkadot-js/extension
Some data may be outdated — see provenance labels.
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. observed · 2026-09-25
Health v2 · maintenance only
94/100
- Activity 96
- Release rhythm 88
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-10-21. Adoption (stars, forks) is never an input.
- gap_med: 13
- age_days: 2710
- days_rel: 81
- days_push: 27
- n_releases_24m: 32
Adoption not part of the score
1020 stars · 459 forks observed · 2026-09-25
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
A browser extension for Chrome and Firefox that manages Polkadot and Substrate network accounts and signs transactions (extrinsics) with them. It injects a @polkadot/api Signer into web pages so dapps can request signatures from the user's accounts.
Use cases
- manage polkadot accounts in the browser
- sign substrate transactions from a dapp
- inject a polkadot signer into web pages
- import or create substrate accounts from a seed
- integrate wallet signing into a polkadot dapp
When to choose
- you need a lightweight signer for Polkadot/Substrate accounts in Chrome or Firefox
- you are building a dapp that wants standard extension-based account signing
- users need to approve extrinsic signatures without a full wallet
When to avoid
- you need a full wallet that constructs and submits transactions to the network
- you need multi-chain support beyond Polkadot/Substrate ecosystems
- you need a mobile or hardware wallet solution
Facets
plugin · maturity active
auth cryptography browser-extension sdk blockchain browser-extensions web-development browser browser-extension polkadot substrate wallet signer dapp account-management web3 cryptocurrency typescript
1 source
- readme: https://github.com/polkadot-js/extension · fetched 2026-09-25 · 1d9b49df9976
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| polkadot-js/extension | main | 94 |
For agents
markdown · JSON · MCP: product_card(name="polkadot-js/extension")
Data as of 2026-10-19T08:05:51.212177+00:00 · Report a problem