FusionAuth is a customer identity and access management (CIAM) platform that handles login, SSO, MFA, and RBAC for the applications a company builds, with a…
| FusionAuth | Vaultwarden | |
|---|---|---|
| Primary category | Security | Security |
| Rating | Not documented | Not documented |
| Pricing model | Freemium (self-hosted free tier plus flat-rate subscription tiers) | Free |
| Starting price | Free (Community edition, self-hosted); paid plans from about $162/month | Not documented |
| Free plan | Yes | Not documented |
| Free trial | Not documented | Not documented |
| Platforms | Not documented | Web, iOS, Android, Mac, Windows |
| Team collaboration | Not documented | Not documented |
| AI features | Not documented | Not documented |
| Public API | Yes | Not documented |
Primary Purpose
FusionAuth: FusionAuth is a customer identity and access management platform for authenticating and authorizing an application's end users.
Vaultwarden: Vaultwarden is a personal/team password vault for storing and sharing login credentials people already have, not for authenticating into a company's own application.
Building login for your product and storing your team's passwords are different problems requiring different tools.
Pricing Structure
FusionAuth: FusionAuth's Community Edition is free and self-hosted; cloud plans start at $162/month (Starter, billed annually), rising to Essentials and Enterprise plans starting at $2,970/month.
Vaultwarden: Vaultwarden has no published pricing plans in its documented facts — it is free, open-source software intended for self-hosting.
Teams scaling into paid CIAM tiers need to budget for FusionAuth's cloud pricing curve, while Vaultwarden's cost is mainly self-hosting infrastructure.
Authentication Features for Applications
FusionAuth: FusionAuth provides SSO, social logins, passwordless magic links, passkeys, and machine-to-machine authentication specifically for securing applications.
Vaultwarden: Vaultwarden documents MFA methods (FIDO2 WebAuthn, YubiKey, Duo) to protect the vault itself, not to authenticate users into third-party applications.
Securing your own product's login flow requires a dedicated CIAM feature set that a password vault doesn't provide.
Developer SDK Ecosystem
FusionAuth: FusionAuth is API-first with webhooks and provides SDKs and quickstarts across .NET Core, Angular, Python, iOS, React, Java, Ruby, JavaScript, Vue, Flutter, Go, and PHP.
Vaultwarden: Vaultwarden's integration surface is Bitwarden Client API compatibility for existing official Bitwarden apps, not an SDK ecosystem for embedding auth into other applications.
Teams integrating authentication into their own codebase need broad language and framework SDK support.
Support Tiers
FusionAuth: FusionAuth documents business-day email support on the Essentials plan and 24/7 phone and email support plus a private Slack channel on the Enterprise plan.
Vaultwarden: Vaultwarden is an unofficial, community-built project with no documented official support tiers.
Mission-critical authentication systems often need guaranteed vendor support SLAs, unlike a self-hosted community password vault.
| Feature | FusionAuth | Vaultwarden |
|---|---|---|
| Customer/application login and SSO | Available | Unavailable |
| Personal / team password vault | Unavailable | Available |
| Passwordless / passkey login for apps | Available | Unavailable |
| Bitwarden client compatibility | Unavailable | Available |
| Feature | FusionAuth | Vaultwarden |
|---|---|---|
| Role-based access control for applications | Available | Unavailable |
| Machine-to-machine authentication | Available | Not documented |
| MFA to secure the tool itself | Available | Available |
| Emergency access to shared credentials | Not documented | Available |
| Feature | FusionAuth | Vaultwarden |
|---|---|---|
| Free self-hosted core | Available | Available |
| Published paid cloud tiers | Available | Unavailable |
| 24/7 enterprise support | Available | Unavailable |
Starting price reflects the lowest paid tier, not the full cost for every team size or usage level.
No individual plan breakdown documented yet.
Pros
Cons
Pros
Cons
No, they serve different purposes — FusionAuth handles login and SSO for a company's own application, while Vaultwarden is a personal or team password manager for storing existing credentials.
Yes, the Community Edition is free to self-host with core authentication features; paid cloud plans start at $162/month (Starter).
Yes, Vaultwarden is free, open-source software licensed under AGPL-3.0, with no published pricing plans.
FusionAuth is built for that — it provides SSO, social logins, magic links, passkeys, and machine-to-machine authentication with SDKs across many languages; Vaultwarden does not provide application login capabilities.
Vaultwarden is built for that — it's a self-hosted, Bitwarden-compatible vault with Organizations, Send, and emergency access features; FusionAuth does not provide personal credential storage.
FusionAuth's cloud pricing scales from $162/month (Starter) up to Essentials and Enterprise plans starting at $2,970/month, while Vaultwarden has no published pricing since it is free, self-hosted software.
Read the full FusionAuth review · Read the full Vaultwarden review