Vaultwarden

Overview

Vaultwarden is a lightweight, open-source server that is compatible with Bitwarden clients, first released in 2018. It lets self-hosters run their own vault backend on modest hardware while using the official Bitwarden apps and extensions, and it is a staple of the homelab and small-team self-hosting community.

What it is good at

It runs comfortably on a small VPS or single-board computer where the official self-hosted server would be heavier, and because it speaks the Bitwarden client protocol you get polished apps for free. It is free and open source with a large, active community, enables most business-style features without licensing, and gives you complete control of your data.

Where it falls short

There is no commercial support or SLA, so you own all operational, backup, and security responsibility, including patching and hardening. It is an unofficial reimplementation, so feature parity and protocol changes can lag, and it is unsuited to organizations that need vendor accountability or turnkey enterprise governance.

Pricing

Free and open source; your only costs are the hosting and your operational time. Compare against hosted plans with the TCO calculator.

Best for, and who should look elsewhere

Choose Vaultwarden when you want a lightweight, Bitwarden-compatible server you run yourself and are comfortable owning operations. For vendor support buy Bitwarden directly; for a local fileless vault see KeePassXC; for OpenPGP team sharing see Passbolt.

Bottom line

A popular, resource-light, Bitwarden-compatible server for self-hosters who can own their own infrastructure. Look elsewhere if you require a vendor SLA, official support, or guaranteed long-term protocol parity.