Last updated on Friday 11th of August 2023 04:17:28 PM

XSIBackup Logo

Free ©VMWare ©ESXi backup & replication

Compatible with ©ESXi Free from 5.5 to 8.0. Deduplication, zero aware, perpetual license, Changed Block Tracking, differential, IP backups via SSH, unlimited restore points, cloud backup.

You can use your keys at either the ©XSIBackup service running in the ©ESXi Hypervisor or at the ©XSIBackup-App appliance, able to connect and manage multiple servers.

Now with 21 months of free updates!

Local backups up to 100GB
Free productDownload: €0/$0
Community support Community support
Downloads Download
Local and over IP backups, checksum differential, free edition when unlicensed.
Add to shopping cart Add to cart: €79/$89
Renew subscription Renew 1y €39/$49
E-mail support E-mail helpdesk
Downloads Download
Full CBT support, instant differential feature, free edition when unlicensed.
Add to shopping cart Add to cart: €149/$169
Renew subscription Renew 1y €69/$79
E-mail support E-mail helpdesk
Downloads Download

(*) ©ESXi 8.0 compatibility is offered since v. all in editions: Free, Pro, DC & App appliance.
(**) ©XSIBackup does not support hot backup of datastores extended over multiple physical disks.
(***) ©XSIBackup-Free is the trial version for all editions.

Looking for ©XSIBackup Classic?: click here


©XSIBackup turns any free or licensed ©ESXi server into a full fledged virtualization system by adding live replication and backup of Virtual Machines and the host's configuration.

Copy data locally or over IP to any ©ESXi or Linux system or to a deduplicated backup repository yielding up to 99% compression ratio with a differential delta checksum or CBT Changed Block Tracking technology (only DC edition).

It has a built in block level deduplication engine. It can deduplicate data to any file system that you can mount over NFS or connect to over SSH. It needs nothing else to do it. It incorporates advanced indexing algorithms that allows it to find a block in a multi-terabyte VM in microseconds and does it at a sustained rate.

It uses little resources on your ©ESXi host, thus you can use it to backup your guest virtual machines while you use them without even noticing the load.

©XSIBackup is an extremely resilient piece of software, designed for professional system administrators that prefer reliable command line tools to fancy colourful windows. Our software is used by renowned enterprises and public institutions in five continents.

It offers features that differentiate it from all the other available solutions. It works both backing up data to local resources or over IP. This makes it the ideal tool to protect from new ©ESXi Ransomware, as you can keep your backup sets in some remote backup server authenticated through a private key, making it easier to protect and keeping backups in an isolated zone.

We offer a fully enabled trial version that you can use to try out all features until the trial period expires. Then you can still use it to backup virtual machines up to 100 GB in size to local datastores.

An nCurses GUI allows to quickly deploy backup and replication jobs as well as to test SMTP servers and run the jobs manually.

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Refund Policy |  Licensing |  Legacy software |  ©ESXi compatibility list |  Corp. licensing |  Rel. hashes

Choose your ©XSIBackup Edition
Features Free Pro DC
Pricing Free €79
Download it! Download Download Download
Buy it! - Add to shopping cart Add to shopping cart
User manual Manual Manual Manual
Current version
Renewal - 1yRenew Pro subscription 1yRenew DC subscription
Automatic provisioning of space
Backup up to 100GB VMs (free edition limit)
Block level deduplication. Block size: 1MB, 10MB, 20MB, 50MB
Compatible with ESXi Free Edition
Cron programmable
Deduplicated supercompressed respositories (above 97% ratio) to any FS over SSH
Differential ESXi Backup & Replication tool
E-mail report layout fully customizable
Full SSH GUI, nCurses Graphical User Interface
Granular recovery of individual files from unlimted restore points
Hot Backup of virtual machines
Local backups to datastores
Native binary compatible with ©Synology NAS(root user only)
No per CPU or VM number limitations
Replicas ready to use
Ultra low footprint, backup your servers while in use
Unlimited restore points
Compatible with ©XSIDirector for automated deployments
All licenses are perpetual, renewing is optional-
Backup over IP-
Cloud backup to any SSH server-
E-mail support helpdesk-
Over IP backups (SSH)-
Unlimited VM size-
Up to 21 months of free upgrades-
1 license key-
2 license keys--
CBT (Changed Block Tracking) support--

Why ©XSIBackup?
Other software ©XSIBackup
Does not run in ©ESXi Free It runs in ©ESXi Free
Run on a separate OS Runs in the ©ESXi shell
Complex GB installation, third party software 2 MB in size, copy, assign permissions and use
Outcome of backups depends on Windows :-| Depends on native monolithic Linux binary
Limit the number of VMs and/ or cores No license limit per host
Have a complex twisted licensing No CPU limit, backup 2 hosts with ©XSIBackup-DC
Can only backup/ replicate to datastores Can backup/ replicate to ©ESXi and Linux over IP
Need additional devices Any regular disk can host backups and replicas
Can't detect silent corruption Can certify backups by SHA-1 algorithm
Aren't flexible, work in a fixed way Extremely flexible, can integrate in IoT schemes
Rely on windows and user action It's totally scriptable

©VMWare ©ESXi Enterprise Ready Backup solutions

Our software has been tested and refined along more than 10 years, both conceptually and empirically. It's just reliable and obsessively optimized to employ the least possible resources.

©XSIBackup simply enables deduplicated backups, unlimited restore points, instant differential backup/replica and granular restore for all your ©ESXi servers without having to spend any additional amount on hardware.

It allows you to perform the backups to any local or IP volume over SSH, this way you can take advantage of any preexisting system. You only need a backup volume which is about the same size than your VMs to be able to host dozens of restore points for archival

XSIBackup Workflow Diagram

©XSIBackup takes advantage of ©VMWare's CBT (Changed Block Tracking) technology to just copy the blocks that have changed since the last iteration, both for backups and replicas.

It is zero aware, so that you just use the space you need and don't waste your valuable resources accumulating zeroed space. It will even detect the zeroed zones that have not been reclaimed by VMFS to avoid wasting space.

You can in turn easily replicate your generated repositories over IP to have offsite copies with maximum efficiency.

In short, ©XSIBackup is an extremely cost efficient tool that will not only protect your data from increasing threats like Ransomware or ordinary Viruses and Trojans, but will increase your IT department's intrinsic value by saving you time and offering you the confidence you need to know that you'll be protected from whatever comes your way.

One year of support

When you buy your license you have one (1) year of support. This includes help in installing and configuring your backup jobs. We have published posts and tutorials on the most common subjects and situations, thus we may redirect you to the documents.

In case your issue is not a recurring one we will help you to fix it and to deploy your best possible backup and replication strategy. Should the case can be helpful to others we may publish an anonymized post on the subject.

This doesn't mean that we will offer you free consultancy, but that we will point you in the right direction and offer you clues to achieve your goals.

If you want consultancy we can offer it to you at very competitive prices as published in our Remote Support information page.