Duplicati
Compare VPS plans to self-host Duplicati. providers advertising 0.5GB+ RAM from $2/mo. Duplicati server hosting comparison.
Find the best and cheapest VPS plans to self-host Duplicati.
Minimum Requirements
These VPS plans meet the minimum requirements to run Duplicati. 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
Duplicati VPS Sizing: Storage, Sync, and Scale
Duplicati is a backup client with a browser-based GUI for scheduling, retention, restore jobs, and remote storage targets. The VPS choice matters because Duplicati is not just pushing files out to S3 or WebDAV. It is also compressing, encrypting, tracking versions, and maintaining a local database while the GUI remains responsive enough to troubleshoot failed jobs.
Resource Profile Classification
The primary resource profile is Mixed. self-hosted-tools.json starts Duplicati at 0.5 GB RAM and recommends 2 GB, which fits a backup tool that is usually quiet between jobs but can become CPU-, memory-, and I/O-sensitive during large runs. The important differentiator is the GUI and the Mono runtime on Linux: Duplicati is easier to use than CLI-only backups, but Mono adds extra overhead on Linux compared with a single native binary.
The web GUI makes Duplicati easier to operate than CLI-only tools, but that convenience comes with local database churn and runtime overhead during backup windows.
Storage and Network Interpretation
Treat Duplicati as a backup orchestrator plus a local database, not just a transport agent. Network throughput still sets upload time to remote backends, but the local SQLite-style database, temporary files, and deduplication metadata need SSD or NVMe behavior to stay healthy. Duplicati also stores version and verification state locally, so plan the VPS around restore confidence, not only around raw backup capacity. If provider uplink details 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 and 1-core floor is enough for light personal backups or testing the GUI. It is not a production claim for large repositories or frequent jobs. |
| Production | requirements.recommended |
2 Cores | 2 GB | 10 GB | The 2 GB and 2-core production tier is the baseline for a live Duplicati node where the GUI, encryption, compression, deduplication, and local database all need headroom. |
| Scale | editorial interpretation |
Add steadier CPU for compression, encryption, verification, and restore operations rather than assuming backup work is only network-bound. | Add RAM for many small files, larger block indexes, GUI responsiveness, and Mono overhead on Linux during active backup windows. | Keep the local database, temporary files, and restore cache on SSD or NVMe even if the actual backup target is remote object storage. | At scale, Duplicati becomes a coordination and local-state problem, not just a bandwidth problem. The next move is more memory for database and deduplication metadata, steadier CPU for encrypted backup windows, and protecting the local restore state from root-disk contention. |
Anti-Patterns
- Do not describe Duplicati as a zero-overhead backup agent just because the 0.5 GB minimum looks small.
- Do not ignore Mono overhead on Linux when the backup node shares RAM with other services.
- Do not confuse the convenience of the GUI with production simplicity; the local database still needs healthy SSD-backed storage and backups.
- Do not size only for uploads while ignoring encryption, compression, deduplication, and verification work on the VPS itself.
Who It Fits
For: Good fit for buyers who want a GUI-driven backup workflow with scheduling, restore visibility, deduplication, and many cloud backends, and can budget for the 2 GB production RAM tier plus SSD-backed local state.
Not for: Avoid the smallest VPS if backup jobs are large, contain many small files, run beside other services, or must finish quickly without Mono and database overhead interfering with the rest of the host.
FAQ
Why does Duplicati need more than a tiny VPS?
Because the GUI is only part of the workload. During real jobs, Duplicati still performs encryption, compression, deduplication, and local database writes that need CPU, RAM, and SSD-backed storage.
What is the main trade-off versus Restic?
Duplicati gives you a GUI, but the price is more runtime complexity and Mono overhead on Linux. Restic is CLI-only and usually lighter operationally.
What should I check before buying?
Check SSD or NVMe storage for the local database, enough RAM for Mono and deduplication metadata, backup-window CPU behavior, renewal pricing, and network terms for the remote backend.
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 Duplicati bottlenecks rather than a name-swap template.
What is Duplicati?
Duplicati is a free, open-source backup client that creates encrypted, incremental, and compressed backups to cloud storage services or local storage. It supports over 20 backends including Amazon S3, Backblaze B2, Google Drive, OneDrive, SFTP, and WebDAV. Features include scheduling, retention policies, email notifications, and a web-based GUI. Duplicati uses strong AES-256 encryption and automatic deduplication, but on Linux it commonly runs through Mono, which adds runtime overhead compared with a smaller native backup binary.
Why Server Specs Matter
Duplicati's resource usage spikes during backup operations and stays minimal otherwise. CPU is heavily used for compression and encryption, while memory usage depends on block size and file count. Large backups with many small files require more RAM for tracking and deduplication metadata. The local database stores backup metadata and version state, and the Mono runtime on Linux adds extra overhead on top of the backup job itself. Network bandwidth still determines upload speed to remote backends.
Problems with Undersized Servers
With insufficient resources, backup jobs take excessively long or fail partway through. Large file sets may cause out-of-memory errors, and the web GUI can become unresponsive during active backup windows. Deduplication efficiency decreases with limited memory, while local database work and Mono overhead on Linux make the host feel more loaded than the simple idle footprint suggests. Restore operations from large backup sets may fail, and verification runs slowly or times out.
Our Recommendation
For personal backups of under 100GB, 512MB RAM works for testing or light use, but 1-2GB RAM is the safer production target. CPU speed affects backup duration because encryption, compression, and verification are local work, not just network transfer. Keep the local database on SSD for better performance and plan around 1GB of fast storage per 100GB of backed-up data. If the node runs Linux, leave extra headroom for Mono overhead and schedule jobs outside peak hours.
Minimum Requirements - VPS Plans
These VPS plans meet the minimum requirements to run Duplicati. 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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