Bitwarden

Bitwarden is the most widely used open source password manager. It securely stores your passwords, notes, and sensitive data in an end-to-end encrypted vault and syncs it across every device, so you can autofill logins from browsers, desktops, and mobile apps. It's a full-featured alternative to 1Password and is free under the GPL-3.0 license.

Yes. Bitwarden is free and open source (GPL-3.0 for its clients), and the core vault, unlimited passwords, and cross-device sync are available on the free plan. Optional paid tiers add features like file attachments, TOTP authenticator, and emergency access. Because it's open source, the code is audited and you can also self-host the Bitwarden server.

Bitwarden uses zero-knowledge, end-to-end encryption: your vault is encrypted locally with a master key derived from your master password, which is never sent to or stored on Bitwarden's servers. Even Bitwarden itself cannot read your data. You can add two-factor authentication (authenticator app, email, hardware keys, Duo, YubiKey) for an extra layer of protection.

Yes. Bitwarden publishes a self-hosted server that you can run on your own infrastructure for full data control. For a lighter-weight alternative server also installed via Docker, many people use Vaultwarden, which is compatible with the official Bitwarden clients and is listed separately on this directory.

Bitwarden offers browser extensions (Chrome, Firefox, Edge, Safari), native Windows, macOS, Linux, iOS, and Android apps, a CLI, and a web vault. It includes a built-in TOTP authenticator, secure notes, cards and identities (on premium), password generation, folder organization, and secure sharing for families or teams via organizations and collections.