Bitwarden is an open source password manager made by Bitwarden Inc. Kyle Spearrin released it in 2016. The company is based in Santa Barbara, California, and its code is published on GitHub for anyone to review.
Bitwarden stores passwords, passkeys, cards, identities and secure notes in an encrypted vault. Data is encrypted on the device before it is sent to Bitwarden's servers. Browser extensions and mobile apps fill logins and generate strong passwords. Organisations can share collections of passwords with teams and control access. Bitwarden Send shares text or files through an encrypted link. Technical users can host their own Bitwarden server instead of using the cloud service.
The free plan covers unlimited passwords on unlimited devices for one person. Premium is a low cost yearly plan that adds file attachments, a security report and a built in authenticator. Families, Teams and Enterprise plans add sharing and admin tools. Bitwarden runs on Windows, Mac, Linux, iOS, Android and the web, with extensions for all main browsers. It is often recommended as a free option by security writers and privacy groups.