Olesia Wallet.

Online send / receive — testnet. A companion to the offline generator.

Hot wallet. Your seed is typed into this page and used to sign in your browser. It is never stored and never leaves this tab, but a web page is not cold storage. Fine for testnet, and for small mainnet amounts you'd accept losing (like any mobile wallet). For meaningful funds, load a watch-only xpub here and sign offline — never put a large-balance seed in a web page.

Send testnet coin here, then Refresh. Same BIP-84 derivation as the offline Olesia generator.

Balances/broadcast via mempool.space. No analytics, no storage. Source: the packages/bitcoin module, signing with @scure/btc-signer.