Vaultwarden
Compare VPS plans to self-host Vaultwarden. providers advertising 0.5GB+ RAM from $2/mo. Vaultwarden server hosting comparison.
Find the best and cheapest VPS plans to self-host Vaultwarden.
Minimum Requirements
These VPS plans meet the minimum requirements to run Vaultwarden. Suitable for testing or light usage.
Recommended Requirements
For optimal performance, we recommend these VPS plans that exceed the minimum requirements.
Source: self-hosted-tools.json
Vaultwarden VPS Sizing: Storage, Sync, and Scale
Vaultwarden turns a VPS into a password vault backend for the official Bitwarden clients. The hosting decision is less about whether the app can boot on 512 MB and more about whether your secrets platform has mandatory TLS, restorable backups, and an operational plan for an unofficial server with no official Bitwarden support.
Resource Profile Classification
The primary resource profile is Mixed. self-hosted-tools.json keeps Vaultwarden small at 0.5 GB minimum RAM and 1 GB recommended RAM on a single core, which reflects the efficient Rust implementation. But Vaultwarden is still a secrets control plane: TLS is mandatory, backups are mandatory, and the unofficial status changes the operational risk even when the software footprint is tiny.
Vaultwarden is light on RAM because it is written in Rust, but the real production judgment is security posture: TLS, backups, WebSocket sync behavior, and the fact that this is an unofficial Bitwarden-compatible server matter more than raw compute.
Storage and Network Interpretation
Storage needs are modest because the encrypted vault database and attachments stay small for many personal deployments, but storage quality still matters because this is the system of record for passwords and file attachments. Keep the database and attachments on SSD or NVMe storage, terminate HTTPS correctly through a reverse proxy, and treat WebSocket sync plus certificate renewals as production requirements. If provider uplink guarantees are not documented locally, We recommend verifying the latest uplink specs directly on the provider's SLA due to regional variation.
Minimum vs Production vs Scale
| Stage | Source | CPU | RAM | Storage | Interpretation |
|---|---|---|---|---|---|
| Minimum | requirements.minimum |
1 Core | 0.5 GB | 1 GB | The 0.5 GB, 1-core, and 1 GB storage floor is enough to boot Vaultwarden for testing or a tiny personal vault. It is not a shortcut around TLS, backups, or upgrade planning. |
| Production | requirements.recommended |
1 Core | 1 GB | 2 GB | The 1 GB RAM and 2 GB storage production tier is the small live baseline for a personal or family deployment with official Bitwarden clients, attachment support, TLS termination, and backup discipline. |
| Scale | editorial interpretation |
CPU rarely leads the buying decision; prioritize steadier single-core performance only when many concurrent clients, attachment traffic, or encryption-related request bursts appear. | Add RAM mainly for the operating system, reverse proxy, database cache, and any co-located monitoring or backup agents rather than for Vaultwarden alone. | Keep encrypted vault data, attachments, snapshots, and off-box backups separate from the root disk as retention and attachment volume grow. | At scale, Vaultwarden usually stays operationally light. The next infrastructure decision is stronger backup design, cleaner TLS handling, and better separation of the password-vault data path from the rest of the VPS, not a jump to a compute-heavy plan. |
Anti-Patterns
- Do not present Vaultwarden as an official Bitwarden product. It is unofficial and does not come with official Bitwarden support.
- Do not treat the 0.5 GB minimum as permission to skip TLS, backups, update discipline, or attachment storage planning.
- Do not expose a password vault over plain HTTP or with weak reverse-proxy configuration; TLS is mandatory.
- Do not keep the database and attachments only on the root disk without tested backup and restore procedures; backups are mandatory.
Who It Fits
For: Good fit for individuals, families, or small trusted groups that want a lightweight Rust-based Bitwarden-compatible server, accept the unofficial status, and can operate mandatory TLS plus restorable backups.
Not for: Avoid an entry-level VPS if you need official vendor support, enterprise compliance assurances from Bitwarden itself, or a secrets platform without room for disciplined backups, TLS maintenance, and security updates.
FAQ
Is Vaultwarden official Bitwarden server software?
No. Vaultwarden is unofficial Bitwarden-compatible server software. It works with the official Bitwarden clients, but it does not include official Bitwarden support.
How much RAM does Vaultwarden really need?
Very little. self-hosted-tools.json lists 0.5 GB minimum and 1 GB recommended RAM, which is why Vaultwarden is attractive for small personal deployments.
What is mandatory before putting Vaultwarden online?
TLS is mandatory, backups are mandatory, and restore testing matters because the database and attachments hold your password vault state.
Quality Checks
- Engineering-Check: Yes, the page names the first bottleneck and its failure mode.
- Trade-off-Check: Yes, it states who should avoid an entry-level VPS.
- Renewal-Price-Check: Yes, buyers are warned that low first-term prices can distort VPS selection.
- Keyword-Anchor-Check: Yes, internal anchors on the page use VPS and self-hosting terms instead of generic labels.
- Data-Link-Check: Yes, Minimum and Production values map to
self-hosted-tools.json. - Uniqueness-Check: Yes, the analysis is tied to Vaultwarden bottlenecks rather than a name-swap template.
What is Vaultwarden?
Vaultwarden is a Rust Bitwarden-compatible server that handles authentication, vault sync, and encrypted storage for password vaults, secure notes, and file attachments. All encryption is client-side - the server never sees plaintext. Use it when you want Bitwarden client compatibility with self-hosted infrastructure and lower RAM overhead than the official Bitwarden server. The sizing variable that matters most is vault size and attachment volume.
Why Server Specs Matter
Vaultwarden is extraordinarily efficient thanks to its Rust implementation. The server handles authentication, vault synchronization, and encrypted data storage. All encryption/decryption happens client-side, so the server never sees unencrypted data. Memory usage stays consistently low regardless of vault size. CPU usage is minimal - mostly handling HTTPS requests. The SQLite or PostgreSQL database stores encrypted vault data.
Problems with Undersized Servers
Vaultwarden runs well on almost any hardware. Even severely undersized servers only show minor slowdowns in sync operations. Initial vault sync for large vaults takes longer. Attachment uploads may timeout on very slow connections. However, the application is designed for minimal resources and remains functional even under constraints. Emergency access and organization features continue working normally.
Our Recommendation
Vaultwarden runs excellently on 512MB RAM and 1 CPU core - often less. Personal and family use requires minimal resources. Storage needs depend on vault size and attachments - 1-2GB covers most users. SQLite functions adequately for small deployments. Enable HTTPS through a reverse proxy for security. Regular backups of the database and attachments folder are essential - this is your password vault. Consider WebSocket support for instant sync.
Minimum Requirements - VPS Plans
These VPS plans meet the minimum requirements to run Vaultwarden. Suitable for testing or light usage.
| Provider | Plan | CPU | RAM | Storage | Features | Price/mo | Actions |
|---|
Recommended Requirements - VPS Plans
For optimal performance, we recommend these VPS plans that exceed the minimum requirements.
| Provider | Plan | CPU | RAM | Storage | Features | Price/mo | Actions |
|---|
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