Some small simple non-custodial Ethereum wallets ("Min-Wallets") and utilities that run locally in browser with no dependencies
(no browser plugins or other installs needed).
A third-party relay (configurable "HTTP provider") is used to query the blockchain and broadcast transactions.
Offline versions of the wallets are available,
which can be used to manage keys and sign transactions on an air-gapped device.
Account Wallet
Contract Wallet
Contract Deployment Wallet
Vanity Wallet Miner
General Address Information
Broadcast Raw Transaction