1 Best Open Source Bitwarden Alternatives

Bitwarden is a password manager available as a hosted cloud service with free and paid tiers, plus browser extensions, mobile apps, and desktop clients. It stores logins, payment cards, and secure notes in an encrypted vault, and its paid plans add features like organization sharing, emergency access, and advanced 2FA options for teams.

Bitwarden's own client and server code is already open source, which sets it apart from most commercial password managers. Even so, people look for alternatives to the hosted Bitwarden service to avoid subscription costs for premium and team features, or to keep vault data entirely on infrastructure they control instead of Bitwarden's cloud, often for compliance or personal preference reasons.

Vaultwarden is the common self-hosted route. It is an independent, lightweight reimplementation of the Bitwarden server API written in Rust, built to run on modest hardware such as a Raspberry Pi or a small VPS, unlike Bitwarden's official server which is heavier to self-host. Because it implements the same API, it works with the official Bitwarden browser extensions and mobile apps, so switching does not require learning new client software.

Before self-hosting, check that Vaultwarden's feature support matches what you actually use, since it does not implement every enterprise feature from Bitwarden's paid tiers, though it does support most personal and small-team functionality including organizations. Plan for backups of the vault database, since you are now responsible for data durability. Also set up HTTPS and keep the server updated, since a self-hosted vault is only as secure as the server it runs on.