Introduction

Datashelter is a straightforward, integrated backup solution for Linux servers.
It’s built to make backups actually manageable: no complex setup, no scripts to maintain.
With a few commands, you can back up your files and databases to any S3-compatible storage, securely and automatically.

Datashelter handles encryption, compression, deduplication, and scheduling for you — so your backups stay lightweight, safe, and easy to restore when things go wrong.

How it works

At the core of Datashelter is Snaper, a lightweight CLI written in Go.
Snaper runs directly on your servers and takes care of every step of the backup process:

• Scans and tracks changes at the file level
• Compresses and encrypts data locally
• Uploads it to your S3 storage (yours or ours)
• Manages incremental and deduplicated backups automatically

Unlike tools like rsync, Snaper doesn’t just copy changed files — it uses an index-based backup method that identifies changes inside files and only transfers what’s necessary.
This makes backups faster, smaller, and more efficient.

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