Best Open Source Alternatives to 1Password in 2026
Best Open Source Alternatives to 1Password in 2026
1Password costs $3-8/user/month. For a 50-person team, that's $4,800/year for encrypted key-value storage. Open source password managers are mature, audited, and — in the case of Bitwarden — used by millions. Here's what to switch to.
TL;DR
Bitwarden is the best 1Password alternative — period. Full-featured, cross-platform, audited, and free to self-host via Vaultwarden. KeePassXC is the offline-first option for individuals. Passbolt is purpose-built for team credential sharing.
Key Takeaways
- Bitwarden/Vaultwarden covers everything — browser extensions, mobile apps, auto-fill, secure sharing, TOTP, and passkeys
- Vaultwarden (community Bitwarden server) unlocks premium features for free when self-hosted
- KeePassXC is best for individuals who want offline-only, no-cloud password storage
- Passbolt is designed specifically for team credential sharing with granular permissions
- All are security-audited — Bitwarden has regular third-party audits; KeePassXC uses the battle-tested KDBX format
The Comparison
| Feature | 1Password | Bitwarden | KeePassXC | Passbolt |
|---|---|---|---|---|
| Price | $3-8/user/mo | Free (OSS) | Free (OSS) | Free (OSS) |
| Self-hosted | No | Yes (Vaultwarden) | Local files | Yes |
| Browser extension | ✅ | ✅ | ✅ | ✅ |
| Mobile app | ✅ | ✅ | Via KeePassDX | ❌ (web) |
| Desktop app | ✅ | ✅ | ✅ (best) | ❌ |
| Auto-fill | ✅ | ✅ | ✅ | Browser only |
| Passkeys | ✅ | ✅ | ❌ | ❌ |
| TOTP | ✅ | ✅ (premium/VW) | ✅ | ❌ |
| Secure sharing | ✅ | ✅ (Send) | ❌ | ✅ (best) |
| Team management | ✅ | ✅ | ❌ | ✅ |
| SSO/SCIM | ✅ | Enterprise | ❌ | ✅ |
| Audit trail | ✅ | ✅ | ❌ | ✅ |
| Emergency access | ✅ | ✅ | ❌ | ❌ |
| Offline access | ✅ | ✅ | ✅ (always) | ❌ |
1. Bitwarden / Vaultwarden
The complete password manager — self-hostable.
- GitHub: Bitwarden 16K+ stars, Vaultwarden 42K+ stars
- Stack: C# (official) / Rust (Vaultwarden)
- License: AGPL-3.0 (Bitwarden) / AGPL-3.0 (Vaultwarden)
- Deploy: Docker
Bitwarden is the open source password manager most people should use. The official cloud service is affordable ($10/year for premium), but self-hosting via Vaultwarden (a community Rust implementation of the Bitwarden server) unlocks all premium features for free — including TOTP, file attachments, emergency access, and organizations.
Vaultwarden runs on a Raspberry Pi. It's a single Docker container using ~50MB RAM.
Self-Hosting with Vaultwarden
docker run -d --name vaultwarden \
-v /vw-data/:/data/ \
-p 80:80 \
-e SIGNUPS_ALLOWED=false \
-e ADMIN_TOKEN=your-admin-token \
vaultwarden/server:latest
All official Bitwarden clients (browser extensions, mobile apps, desktop apps) work with Vaultwarden — just point them to your server URL.
Best for: Everyone. Individuals, families, teams. The most complete open source password manager available.
2. KeePassXC
Offline-first, local-only password storage.
- GitHub: 22K+ stars
- Stack: C++, Qt
- License: GPL-2.0+
- Deploy: Desktop app (no server)
KeePassXC stores passwords in an encrypted local file (KDBX format). No server, no cloud, no account — your passwords exist only on your device. Sync via any file sync service (Dropbox, Syncthing, Nextcloud) if needed.
Standout features:
- Fully offline — no internet required, ever
- KDBX 4 format (AES-256, Argon2 key derivation)
- Browser integration via KeePassXC-Browser
- SSH agent integration
- TOTP support built-in
- Auto-Type for desktop applications
- YubiKey/hardware key support
- Cross-platform (Windows, macOS, Linux)
Best for: Individuals who want maximum security with zero cloud dependency, security professionals, offline environments.
3. Passbolt
Team credential sharing done right.
- GitHub: 5K+ stars
- Stack: PHP (CakePHP), JavaScript
- License: AGPL-3.0
- Deploy: Docker, packages, manual
Passbolt is different — it's built specifically for teams sharing credentials. Instead of a vault for one person, it's a shared credential store with granular permissions, groups, and audit logs. Think "1Password Teams" specifically.
Standout features:
- End-to-end encrypted (OpenPGP based)
- Granular sharing permissions (per credential, per group)
- User and group management
- Audit logs (who accessed what, when)
- Browser extension for auto-fill
- REST API for automation
- LDAP/AD directory sync
- MFA enforcement
Best for: Teams that share credentials (DevOps secrets, shared accounts, client credentials), organizations with compliance requirements.
Cost Comparison
| Scenario | 1Password | Vaultwarden | KeePassXC |
|---|---|---|---|
| Individual | $36/year | $0 (local) or $5/mo VPS | $0 |
| Family (5) | $60/year | $5/month (VPS) | $0 |
| Team (10) | $480/year | $5/month | N/A |
| Business (50) | $4,800/year | $10/month | N/A |
Decision Guide
Choose Bitwarden/Vaultwarden if:
- You want the most complete 1Password replacement
- You need cross-platform with mobile apps
- You want team sharing and organizations
- You want TOTP, passkeys, and emergency access
Choose KeePassXC if:
- Offline-only security is non-negotiable
- You don't want any cloud component
- You're an individual user or small family
- You want SSH agent integration
Choose Passbolt if:
- Team credential sharing is the primary use case
- You need audit trails for compliance
- LDAP/AD integration is required
- Granular per-credential permissions matter
Compare open source password managers on OSSAlt — security features, platform support, and team capabilities side by side.