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MetaMask

MetaMask brings Ethereum to your web browser

Verified
We've verified that the organization MetaMask controls the domain:
- metamask.io
Learn more about verified organizations

4k followers
Ethereum Blockchain
https://metamask.io
@metamask
hello@metamask.io

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Overview
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README.md

MetaMask

The web3 crypto wallet and browser extension!

If you want to report a security issue, please submit it securely on our HackerOne bounty program.

You can find the code for our various products and components in this org.

For general information, visit metamask.io.

Pinned Loading

metamask-extension metamask-extension Public

🌐 🔌 The MetaMask browser extension enables browsing Ethereum blockchain enabled websites

TypeScript 12.6k 5.2k
metamask-mobile metamask-mobile Public

Mobile web browser providing access to websites that use the Ethereum blockchain

TypeScript 2.4k 1.3k
metamask-docs metamask-docs Public

Developer documentation for MetaMask

MDX 734 1.2k
metamask-sdk metamask-sdk Public

The simplest yet most secure way to connect your blockchain-based applications to millions of MetaMask Wallet users.

TypeScript 251 167
snaps snaps Public

Extend the functionality of MetaMask using Snaps

TypeScript 776 591
core core Public

This monorepo is a collection of packages used across multiple MetaMask clients

TypeScript 334 230

Repositories

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Showing 10 of 316 repositories

metamask-mobile Public
Mobile web browser providing access to websites that use the Ethereum blockchain

MetaMask/metamask-mobile’s past year of commit activity

TypeScript 2,406 1,261 1,170 (27 issues need help) 230 Updated May 28, 2025
metamask-extension Public
🌐 🔌 The MetaMask browser extension enables browsing Ethereum blockchain enabled websites

MetaMask/metamask-extension’s past year of commit activity

TypeScript 12,583 5,194 2,182 (15 issues need help) 382 Updated May 28, 2025
metamask-storybook Public
The Storybook for the MetaMask extension

MetaMask/metamask-storybook’s past year of commit activity

TypeScript 28 35 0 0 Updated May 28, 2025
metamask-extension-ts-migration-dashboard Public
A dashboard for tracking the TypeScript migration of the extension.

MetaMask/metamask-extension-ts-migration-dashboard’s past year of commit activity

JavaScript 6 6 0 1 Updated May 28, 2025
eth-phishing-detect Public
Utility for detecting phishing domains targeting Web3 users

MetaMask/eth-phishing-detect’s past year of commit activity

TypeScript 1,172 991 3 3 Updated May 28, 2025
core Public
This monorepo is a collection of packages used across multiple MetaMask clients

MetaMask/core’s past year of commit activity

TypeScript 334 MIT 230 230 142 Updated May 28, 2025
extension_bundlesize_stats Public
Measuring extension bundle size over time

MetaMask/extension_bundlesize_stats’s past year of commit activity

HTML 8 8 3 2 Updated May 28, 2025
metamask-design-system Public
The design system for MetaMask products

MetaMask/metamask-design-system’s past year of commit activity

TypeScript 11 4 180 10 Updated May 28, 2025
ocap-kernel Public
The MetaMask Ocap Kernel monorepo.

MetaMask/ocap-kernel’s past year of commit activity

TypeScript 4 3 20 2 Updated May 28, 2025
metamask-docs Public
Developer documentation for MetaMask

MetaMask/metamask-docs’s past year of commit activity

MDX 734 Apache-2.0 1,247 28 15 Updated May 28, 2025

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Most used topics

metamask ethereum cryptocurrency web3 blockchain

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