Is MetaMask safe?

Yes, MetaMask is considered to be safe, and is trusted by more than a million users worldwide, making it one of the most popular Ethereum wallets. MetaMask does not control any of your personal or private data on their servers. Everything is encrypted in your browser and protected via your MetaMask password. If a MetaMask account is lost, you would need to use your Secret Recovery Phrase in order to restore your MetaMask account.