IOG's non-custodial Cardano wallet, on browser and mobile. I spent four years on the team that shipped it.
Lace is Cardano's official light wallet: non-custodial, open source, and built so anyone can hold their own assets without understanding the chain underneath.
I worked across onboarding, transactions, staking, multi-signature, and account management, on both the browser extension and the mobile app. Four years, one team, one product that could not afford to be wrong.
Non-custodial means there is no undo. If the wallet signs the wrong thing, or a recovery flow drops a keystroke, the money is gone and no one can return it. Every decision was made under that pressure, and it is the way I have built software ever since.
Splitting stake across pools on Cardano is not one setting. The balance drifts with every transaction. I helped ship multi-pool delegation that held up, and we documented the protocol limits instead of hiding them.
Lace is a Chrome extension and a React Native app that must behave identically. Keeping key management, transaction building, and the rules in one typed core gave security-critical code a single source of truth.
Recovery, confirmation, signing, and hardware pairing were treated as safety-critical, not UI. The wallet shows exactly what is about to be signed, and the safe path is the obvious one.
Highly reliable, works fast, and consistently delivers high-quality results with very little oversight.
Lace is now the default Cardano wallet, reaching beyond Cardano to Bitcoin and Midnight. I want more problems where correctness is not negotiable.