Clonezilla

Overview

Clonezilla is a bootable disk and partition imaging tool for cloning systems, bare-metal backup, and recovery. It is best suited to administrators and technically comfortable users managing machine images, rather than people who need an always-running backup app. Its deployment options and storage flexibility are strong; the lack of incremental backups and direct file recovery rules it out for some everyday backup needs.

It comes in three editions: Clonezilla live for one machine, and Clonezilla lite server and Clonezilla SE for simultaneous multi-computer cloning. The server editions make it relevant to larger rollouts, while live keeps the focus on individual systems.

Clonezilla belongs in Disk Cloning Software, OS Deployment Software, Disk Imaging Software, Bare Metal Provisioning Software, and Backup software.

Key features

Imaging and recovery

On supported file systems, Clonezilla saves and restores used blocks, avoiding a full sector copy. Unsupported file systems instead use sector-to-sector copying, which changes how much data must be handled. Support spans Linux, Windows, Mac, BSD, Minix, and VMware file systems, including ext4, NTFS, APFS, and VMFS3/5.

Images can be stored on a local disk or SSH, Samba, NFS, and WebDAV servers. MBR and GPT are supported, and Clonezilla live can boot on BIOS or UEFI machines. The project says images can be encrypted, with AES-256 securing data access, storage, and transfer. However, images cannot be explored or mounted, so recovering one file directly from an image is not supported. A destination partition must also be at least as large as the source.

Deployment and requirements

Clonezilla lite server and SE can clone many computers simultaneously; the project describes deployments involving 40-plus computers. SE supports multicast, while lite server supports BitTorrent for massive deployment. Those choices suit administrators preparing many systems, though they add deployment-specific workflows absent from the single-machine live edition.

Clonezilla live requires an x86 or x86-64 processor, 196 MB of RAM, and a boot device such as CD/DVD, USB, PXE, or hard drive. The downloads page lists stable Clonezilla live 3.3.3-37 as Debian-based and alternative stable 20260913-resolute as Ubuntu-based; its checksum files are GPG-signed by the DRBL project.

Pricing

Clonezilla is free and open source software under GPL version 2. The Clonezilla plan costs nothing. There are no paid tiers to weigh against the free edition; the main trade-off is capability, not price, with no differential or incremental backups and no online imaging.

Platforms

The software runs from a Linux-based bootable environment and supports imaging file systems used by Linux, Windows, Mac, BSD, Minix, VMware ESX, and Chrome OS/Chromium OS. Clonezilla live boots on BIOS or UEFI hardware. Its minimum requirements are modest, but this is a computer imaging tool, not a mobile backup option.

Who it's for

Clonezilla is a good fit for system administrators who need to duplicate machines, restore bare-metal systems, or deploy images to a fleet. The server editions' simultaneous cloning and multicast or BitTorrent options are particularly relevant for large deployments. It also suits individual users comfortable booting a separate environment to create or restore an image.

Choose another kind of backup tool if you need incremental or differential history, imaging while a system is online, or file-level recovery from an image. Those limitations make Clonezilla less suitable as the sole backup method for users who regularly retrieve individual files.

Pros and cons

Pros: Three editions cover single-machine imaging through large deployments, including simultaneous cloning for 40-plus computers.

Pros: Broad file-system support, local and network storage targets, and AES-256 encryption give administrators useful choices for images and transfers.

Pros: The free GPLv2 license makes the full imaging tool available without a paid plan.

Cons: No differential or incremental backups or online imaging, so it cannot provide those backup workflows.

Cons: Images cannot be mounted or browsed for individual-file recovery, and the destination partition cannot be smaller than the source.

Alternatives

Consider Lazesoft Recovery Suite if its Windows recovery, password recovery, data recovery, and disk image and clone functions suit a non-commercial home-use case; its Home Edition is free-plan, with a free trial also offered.

FOG Project is another free option for readers who want a deployment tool with a free community-support plan and commercial use.

Redo Rescue is a free alternative whose maker identifies its code as auditable, modifiable, and copyable at no cost under GNU GPLv3.

AOMEI Backupper is worth considering for Windows users who want a perpetually free PC backup plan, with a paid Professional Yearly option also offered.

HDClone may suit private users who want a free edition capped at 4 TB and 70 MB/s, or a paid Basic Edition priced at €19.90, paid once.

Lazesoft Disk Image & Clone offers a free home edition for personal, non-commercial use on up to 3 PCs in one household.

OSFClone is a free self-booting disk imaging utility; its USB installation requires a drive of at least 2 GB.

Rescuezilla is a free alternative that runs from a bootable USB or CD-ROM without a license or serial number.

Verdict

Choose Clonezilla if you need free, bootable disk imaging for bare-metal recovery or repeatable multi-machine deployment, and can work within its image-based workflow. Look elsewhere if your priority is incremental backup, online capture, or restoring individual files directly from an image.