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SPECIFICTION
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XSIBackup

33hops.com

Free plan LinuxSelf-hosted
Visit 33hops.com
Spec score 7.5 #18 of 26 in Virtual Machine Backup Software

What it is

XSIBackup backs up and replicates virtual machines and host configuration on VMware ESXi, including free and licensed servers. It supports ESXi Free versions 5.5 to 8.0 and runs on Linux in an on-premises, self-hosted setup. Backup options include local and IP destinations, differential copies, replication, and cloud targets using SSH servers. A built-in block-level deduplication engine can write to filesystems mounted over NFS or accessed over SSH. Recovery includes individual-file restores and unlimited restore points across Free, Pro, and DC editions. The comparison lists Synology NAS compatibility when using the root user and XSIDirector support for automated deployments. Remote backup servers can use private-key authentication, and backups can be certified with SHA-1. The Free plan allows local backups up to 100GB. Pro costs 89.00 USD once; DC costs 169.00 USD once. Both allow unlimited VM size when licensed. 33HOPS is out of business and has not accepted new orders since July 15, 2024.

Spec sheet

Purpose
XSIBackup backs up and replicates virtual machines and host configuration on free or licensed VMware ESXi servers.Read 7 Oct 2026 · 33hops.com
Intended users
The maker describes XSIBackup as designed for professional system administrators who prefer command-line tools.Read 7 Oct 2026 · 33hops.com
Integrations
The comparison lists native binary compatibility with Synology NAS when using the root user and compatibility with XSIDirector for automated deployments.Read 7 Oct 2026 · 33hops.com
Security
The maker says remote backup servers can be authenticated through a private key and describes this as a way to keep backups in an isolated zone.Read 7 Oct 2026 · 33hops.com
Support
A purchased license includes one year of support covering help with installing and configuring backup jobs.Read 7 Oct 2026 · 33hops.com
Headquarters
San Sebastián de los Reyes, Madrid, SpainRead 28 Sep 2026 · 33hops.com
Availability
33HOPS states that it is out of business and has not accepted new orders since July 15, 2024.Read 7 Oct 2026 · 33hops.com
Backup methods
It supports local and IP backups, differential backups, replication, and cloud backup to SSH servers.Read 7 Oct 2026 · 33hops.com
Deduplication
The built-in block-level deduplication engine can write to filesystems mounted over NFS or connected over SSH.Read 7 Oct 2026 · 33hops.com
Integrity checks
The product page says backups can be certified using the SHA-1 algorithm.Read 7 Oct 2026 · 33hops.com
Notable limit
XSIBackup does not support hot backup of datastores extended over multiple physical disks.Read 7 Oct 2026 · 33hops.com
Recovery
The product comparison lists granular recovery of individual files and unlimited restore points across Free, Pro, and DC editions.Read 7 Oct 2026 · 33hops.com
Supported ESXi versions
The product page states compatibility with ESXi Free from versions 5.5 to 8.0.Read 7 Oct 2026 · 33hops.com

Plans and prices

XSIBackup-Free Free Download: €0/$0 Local backups up to 100GB Read 7 Oct 2026 · 33hops.com
XSIBackup-Pro $89, paid once Add to cart: €79/$89; Renew 1y €39/$49 One license key · local and over IP backups · unlimited VM size when licensed Read 7 Oct 2026 · 33hops.com
XSIBackup-DC $169, paid once Add to cart: €149/$169; Renew 1y €69/$79 Two license keys · full CBT support · instant differential feature · unlimited VM size when licensed Read 7 Oct 2026 · 33hops.com

Every XSIBackup plan and price →

Strong points and limits

Strong points

  • Supports ESXi versions 5.5 to 8.0.
  • Offers local, IP, differential, replication, and SSH backups.
  • Includes individual-file recovery and unlimited restore points.
  • Private-key authentication is available for remote backup servers.

Limits

  • Free local backups are limited to 100GB.
  • Hot backup is unsupported for datastores across multiple physical disks.
  • 33HOPS is out of business and accepts no new orders.
  • Pro costs 89.00 USD once.

Who it suits

XSIBackup is intended for professional system administrators who prefer command-line tools and need to protect ESXi environments. Its Linux, on-premises deployment suits teams managing their own backup infrastructure.

Verdict

XSIBackup covers a range of ESXi backup and recovery needs, with on-premises Linux deployment and multiple backup targets. Its stated support for new orders has ended, and hot backups have a specific datastore limitation.

Where Specifiction places it

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