Vaultwarden vs Bitwarden: Features, Security, Costs
Vaultwarden and Bitwarden are both password managers that share the same underlying codebase, but they differ fundamentally in how they are hosted and managed. Bitwarden is a commercial cloud service with official apps and support, while Vaultwarden is a self-hosted, community-developed server implementation that aims to be compatible with Bitwarden’s clients. This article compares their features, security, costs, and maintenance to help you decide which fits your needs.
Background: What Are They?
Bitwarden is a full-featured password manager offered as a paid cloud service, with a free tier and premium plans for individuals, families, and organizations. It also offers a self-hosted option for businesses, but that requires a paid license and is more complex to deploy.
Vaultwarden (formerly bitwarden_rs) is an independent, open-source project that reimplements the Bitwarden server API in Rust. It is designed to be lightweight and easy to self-host on a Raspberry Pi, a small VPS, or a home server. It uses the official Bitwarden client apps (desktop, mobile, browser extensions) but replaces the backend with your own instance.
Feature Comparison
Vaultwarden aims for near-complete API compatibility with Bitwarden, so most features work identically. However, there are differences:
- Core features (vault storage, autofill, password generator, two-step login, secure notes, identity and card items) are present in both.
- Bitwarden Cloud includes additional services like Bitwarden Send (secure file/text sharing), password health reports, breach monitoring, and integrated TOTP authenticator in the premium tier.
- Vaultwarden supports Bitwarden Send, TOTP, and most premium features without requiring a paid subscription, but some advanced features (like the emergency access feature) may not be fully implemented or may behave differently.
- Multi-user and organization features exist in both, but Bitwarden’s cloud offers a more polished administration console, while Vaultwarden’s admin panel is simpler and accessed via a separate URL.
Security Considerations
Both use the same client-side encryption: your vault is encrypted with AES-256 and your master password is never sent to the server. The critical difference is who controls the server.
Bitwarden’s cloud is hosted on major cloud providers (AWS, Azure) and undergoes regular third-party security audits. They have a published security white paper and a bug bounty program. You trust them with your encrypted data and their operational security.
Vaultwarden puts you in charge of the server. This means you control the hardware, network, and backups, but you also take on the responsibility of keeping the server patched, securing the network, and protecting the database. If you expose it to the internet, you must configure HTTPS, set up a reverse proxy, and monitor for unauthorized access. A misconfigured server could leak your encrypted vault or expose your master password hash to brute-force attacks.
One common misconception: Vaultwarden is not less secure than Bitwarden just because it’s self-hosted. The encryption is identical. The risk comes from your ability to maintain a secure server.
Costs and Maintenance
Bitwarden’s free tier is genuinely free for individual use, with unlimited items and devices. Premium costs about $10/year, and family plans are about $40/year. There is no server to maintain, no updates to apply, and no backups to manage—Bitwarden handles all that.
Vaultwarden is free software, but you pay for the hardware (a Raspberry Pi or VPS) and your time. A small VPS costs roughly $5–10 per month. You must:
- Install and configure the server (Docker is recommended).
- Keep it updated—Vaultwarden releases updates frequently, and you need to pull new images and restart.
- Set up backups of the SQLite database and config files.
- Monitor logs for errors or intrusion attempts.
For a single user, the time cost of maintenance may exceed the $10/year premium. For a family or small team, self-hosting might be worth it if you already run a server.
How to Choose
Ask yourself these questions:
- Do you want zero maintenance? Choose Bitwarden Cloud.
- Do you want full control over your data and trust no third party? Choose Vaultwarden.
- Are you comfortable administering a Linux server and Docker? Vaultwarden is viable.
- Do you need official support and guaranteed uptime? Bitwarden is the safer bet.
- Do you want to avoid subscription costs? Vaultwarden has no per-user fees, but you still pay for hosting.
If you just want a password manager that works everywhere, Bitwarden’s free tier is hard to beat. If you are a hobbyist who enjoys self-hosting, Vaultwarden is a rewarding project.
Common Problems and Misconceptions
A frequent issue with Vaultwarden is that users forget to enable HTTPS, leaving their login page exposed. Another is that they don’t set up a proper backup, losing all passwords when the SD card fails. Bitwarden users sometimes worry about the company going out of business—but even then, you can export your vault anytime.
Another misconception: Vaultwarden is a fork of Bitwarden. It’s not. It’s a separate implementation of the server protocol, written from scratch. The clients are Bitwarden’s official apps, but the server is different. This means that if Bitwarden changes its API, Vaultwarden may lag behind until the community updates.
Also, Vaultwarden is not officially supported by Bitwarden, so you won’t get help from their support team if something breaks. You rely on the community and GitHub issues.
Alternatives
If you want self-hosting but prefer a different ecosystem, consider KeePassXC (desktop-only, no sync built-in) or Passbolt (team-oriented, but not compatible with Bitwarden clients). For cloud services, 1Password and Dashlane are popular, but they are proprietary and more expensive. If you value open-source and self-hosting, Vaultwarden is the most direct alternative to Bitwarden Cloud.
Frequently Asked Questions
Is Vaultwarden as secure as Bitwarden?
Yes, the encryption is identical because it uses the same client-side encryption standard. The security depends on your server setup. If you follow best practices (HTTPS, strong admin password, regular updates), it can be as secure as Bitwarden’s cloud. If you expose it to the internet without protection, it can be less secure.
Can I use the official Bitwarden apps with Vaultwarden?
Yes, that’s the whole point. Vaultwarden is designed to be API-compatible with Bitwarden’s clients. You just change the server URL in the app to your Vaultwarden instance. This works for desktop, mobile, and browser extensions.
Does Vaultwarden cost money?
The software is free and open-source. You only pay for the hardware or VPS you run it on, plus your time for maintenance. There are no per-user fees or premium subscriptions.
Which is better for a family?
Bitwarden’s family plan is simple and includes sharing and organization features. Vaultwarden also supports organizations and sharing, but you must set up user accounts and manage them yourself. If you’re comfortable with that, Vaultwarden can save you the $40/year.
What happens if Vaultwarden stops being developed?
Because it’s open-source, you can fork it and continue using it. Your data is stored in a SQLite database, so you can export it to a standard format and migrate to Bitwarden or another manager at any time.
Can I migrate from Bitwarden Cloud to Vaultwarden?
Yes, you can export your vault from Bitwarden as a JSON or CSV file, then import it into Vaultwarden. The process is straightforward and documented in the Vaultwarden wiki.
Related
Method: the standard formula for this calculation, rounded as each result states. See how the calculators work or report an error.