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Storage Moving RelocationTop 10 Best Nas Backup Software of 2026
Compare nas backup software tools for NAS owners, covering features and tradeoffs to help shortlist the right option. Includes Comet Backup.
How we ranked these tools
Vendors set the topic, but our editors set the inclusion criteria and the evaluation framework before research starts.
Search agents gather the source set and the review record, including transcriptions of video reviews and podcasts.
Framework: Features 40% · Ease 30% · Value 30%
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Comet Backup is the best pick for MSPs and service providers centralizing NAS protection across many customers because its multi-tenant Comet Server console and API-driven storage templates keep provisioning and management consistent, while Veeam Backup & Replication is the better fit for enterprise admins needing reliable NAS-stored restore flows thanks to its instant VM recovery integration.
Editor’s top 3 picks
Three quick recommendations before you dive into the full comparison below — each one leads on a different dimension.
Comet Backup
Comet Server's multi-tenant management console with API access and configurable storage templates.
Best for: Fits when service providers need centralized NAS protection across multiple customers and storage destinations.
Veeam Backup & Replication
Editor pickInstant VM recovery integration with Veeam’s restore points can accelerate NAS-dependent VM recovery paths after storage loss.
Best for: Fits when backup admins need consistent restore workflows across Windows and virtualization with NAS-stored data.
Duplicati
Editor pickEncrypted, compressed backup volumes use a portable Duplicati format across cloud, local, FTP, SFTP, and WebDAV destinations.
Best for: Fits when NAS administrators need encrypted, cross-provider backups with command-line scheduling and file-level restore.
Comparison Table
Comet Backup
SMBBackup platform for MSPs supporting workstation, server, and Microsoft 365 backup with customizable storage destinations.
Comet Server's multi-tenant management console with API access and configurable storage templates.
Comet Backup supports NAS protection through file and folder jobs that can read network-accessible data and send copies to destinations such as local storage, S3-compatible object storage, SFTP, or another network location. Comet Server manages users, schedules, retention settings, storage assignments, and job status from a central interface. Its API provides an automation path for provisioning accounts, configuring jobs, and integrating backup status with external systems.
The tradeoff is that NAS coverage depends on accessible shares and supported operating-system workflows rather than a dedicated appliance-specific integration for every NAS vendor. A managed service provider can use Comet Server to administer backups for multiple customer NAS devices, but each share still requires correct permissions, network access, and retention configuration.
- +Multi-tenant Comet Server administration supports separate customer accounts and delegated management
- +API access supports automated user, job, and storage provisioning
- +Storage Templates standardize destinations and retention across NAS backup jobs
- +Multiple repository types support local, S3-compatible, SFTP, and network storage targets
- –NAS protection depends on reachable shares and correct filesystem permissions
- –Vendor-specific NAS snapshots and appliance replication are not the core workflow
- –Advanced policies require deliberate configuration across agents, jobs, and repositories
Managed service providers
Managing customer NAS backups
Centralized customer administration
Small office administrators
Protecting shared NAS folders
Recoverable shared files
Show 2 more scenarios
Distributed business teams
Copying NAS data offsite
Offsite data copies
Storage destinations can send backup data from office repositories to S3-compatible or SFTP storage.
Backup software integrators
Automating backup provisioning
Repeatable deployment workflows
The Comet Server API connects account, job, and storage creation to external management systems.
Best for: Fits when service providers need centralized NAS protection across multiple customers and storage destinations.
Veeam Backup & Replication
enterpriseEnterprise-grade backup platform with dedicated NAS backup capabilities for file shares and SMB/NFS storage.
Instant VM recovery integration with Veeam’s restore points can accelerate NAS-dependent VM recovery paths after storage loss.
Veeam Backup & Replication targets NAS backup through snapshot-driven restore workflows for Windows file servers, Hyper-V hosts, and physical environments that store data on shared storage. It integrates with SMB shares and common Windows volume concepts to produce restore points that support both file-level browsing and volume-level recovery.
Centralized management, retention policies, and verified recovery steps are built around Veeam’s job engine and transport tuning, which can matter for NAS repositories and backup networks. For NAS-to-NAS patterns, it also supports replication-style use cases when NAS exports are exposed as recoverable targets inside the Veeam ecosystem.
- +Snapshot-aware restore workflows reduce dependence on full re-seeding
- +SMB share backups and file-level restore support typical NAS workloads
- +Job engine options include compression and transport tuning for throughput
- +Central reporting tracks job health, restore points, and retention status
- –NAS shared storage backup coverage depends on supported export and protocol paths
- –Advanced throughput tuning needs careful network and repository sizing discipline
- –Granular access control for NAS backup artifacts can be harder than OS-level RBAC
- –High-scale NAS estates can require more infrastructure planning than SMB-only tools
Storage administrators and file services teams
Back up NAS file shares and restore permissions
Recoverable shared data copies
Enterprise backup and storage teams
Create additional offline archival backup copies
Retention-ready recovery copies
Show 2 more scenarios
Security, backup, and infrastructure teams
Harden repositories for ransomware-resilient backups
More resilient recovery copies
Combines retention controls, encryption, and hardened or immutable repositories to protect backup copies from alteration.
Virtualization administrators
Back up Hyper-V and VMware workloads
Recoverable VM restore points
Runs image-based backup jobs for virtual workloads with incremental processing and controlled retention policies.
Best for: Fits when backup admins need consistent restore workflows across Windows and virtualization with NAS-stored data.
Duplicati
SMBOpen-source backup client supporting encrypted incremental backup to cloud, SFTP, and WebDAV destinations.
Encrypted, compressed backup volumes use a portable Duplicati format across cloud, local, FTP, SFTP, and WebDAV destinations.
Duplicati stores backup data in compressed volumes and encrypts it before transfer, so destination operators do not receive plaintext files. It supports S3-compatible storage, Azure Blob, Google Drive, SFTP, WebDAV, FTP, and local paths. Version retention, file-level restore, backup testing, and repair commands cover routine recovery tasks.
Running Duplicati in a container on Synology or QNAP can read mounted shares and write to a separate repository. The tradeoff is that Duplicati does not manage NAS snapshots, bare-metal recovery, or vendor-specific replication workflows. Large jobs also depend on a local metadata database, which can require rebuilding after migration or corruption.
- +Client-side AES-256 encryption protects data before transfer.
- +Supports S3-compatible, Azure Blob, Google Drive, SFTP, WebDAV, FTP, and local destinations.
- +Command-line and HTTP API support scheduled job automation.
- +Built-in verification and repair detect damaged or missing backup data.
- –No native NAS snapshot orchestration or bare-metal recovery.
- –Large repositories can require local database rebuilds after host migration.
- –Advanced retention and backend settings demand careful job configuration.
- –Restore performance depends on remote backend latency and repository volume layout.
Small office administrators
NAS-to-cloud protection
Offsite encrypted copies
Self-hosted infrastructure teams
Mixed-backend backup jobs
Consistent backup operations
Show 1 more scenario
Technical home users
Automated desktop and NAS backups
Less manual intervention
The scheduler, command line, and web interface support unattended backups across multiple machines.
Best for: Fits when NAS administrators need encrypted, cross-provider backups with command-line scheduling and file-level restore.
Restic
SMBFast, secure, open-source backup program supporting local, SFTP, and cloud backends with encryption and deduplication.
Restic supports mounting a repository snapshot for direct browsing, using the snapshot metadata to enable quick recovery.
Restic is a snapshot-based backup tool that uses deduplicated, encrypted repositories and relies on content checksums for verification during operations. Its distinct design centers on a repository engine that supports local disks, SSH targets, and object-storage style backends, which fits NAS-to-NAS workflows without requiring proprietary appliance linkages.
- +Repository encryption and content checksums support integrity validation
- +Deduplication reduces storage growth across frequent snapshot runs
- +Mountable snapshots enable quick file-level recovery without a full restore
- +Extensive CLI options cover pruning, retention, and verification workflows
- –No native NAS web UI reduces governance through centralized controls
- –Handling NAS shares requires external file access planning and permissions alignment
- –Long-running operations depend on stable network throughput to remote backends
- –Restore workflows stay file-oriented and do not provide block-level volume recovery
Small and mid-sized IT teams
Back up NAS directories to a repository
Versioned recovery copies
Server and infrastructure administrators
Send encrypted backups offsite
Offsite recoverable copies
Show 2 more scenarios
Operations teams and developers
Run recurring backups without manual starts
Regular snapshot retention
Schedules recurring backup jobs through scripts or system scheduling and maintains encrypted snapshot history.
IT administrators and workstation users
Recover user files from selected points
File recovery from points
Maintains encrypted snapshots so selected files can be restored from a chosen backup point.
Best for: Fits when NAS backups need encrypted deduplication and verifiable snapshots with file-level restore.
UrBackup
SMBOpen-source client-server backup system supporting image and file-level backups with web-based administration.
Combined file-and-image client policies with browser-based restore across mixed operating systems.
UrBackup Server runs on Linux, Windows, or FreeBSD, and NAS administrators can deploy it through Docker or appliance-specific packages. File backups preserve directory data, while image backups capture complete system volumes for broader recovery. Windows image jobs can use VSS integration to maintain application-consistent snapshots.
- +File and image backups share one client-server policy.
- +Incremental image backups reduce repeated transfers for endpoint volumes.
- +Web interface shows client health, schedules, storage, and restore status.
- +Open-source server supports Linux, Windows, and FreeBSD deployments.
- –NAS installation often depends on Docker or appliance-specific packaging.
- –Restore media and permissions require administrator-led setup.
- –Native governance lacks role granularity and immutable repository controls.
Small office administrators
Protect mixed employee workstations
Centralized endpoint protection
Managed service technicians
Recover damaged client systems
Faster incident recovery
Show 1 more scenario
Remote workgroups
Back up offsite laptops
Remote endpoint coverage
Internet-mode clients send scheduled backups to a reachable UrBackup server outside the local network.
Best for: Fits when small offices need NAS-hosted backups for mixed Windows, Linux, and macOS endpoints without vendor lock-in.
Rclone
SMBCommand-line cloud sync tool supporting over 70 storage backends including SFTP, WebDAV, and SMB for NAS integration.
Cryptographic checksum verification with selectable transfer options provides repeatable integrity checks during NAS-to-remote copies.
Rclone is a command-line file sync and transfer tool that can act as a NAS backup engine by copying data across local disks, NAS shares, and cloud object storage. Its core capability is highly configurable remote connections plus scripted scheduling, which makes it suitable for recurring NAS-to-NAS copies and off-site replication workflows.
- +Extensive remote types for NAS shares and object storage targets
- +Deterministic command workflows for scheduled sync and copy jobs
- +Checksum verification and transfer retry logic for safer replication
- +Parallel transfers and bandwidth throttling for WAN-friendly throughput control
- –No native snapshot orchestration for immutable backup chains
- –Metadata-heavy restore planning requires careful naming and retention design
- –File-level sync can be slower than block-level incremental approaches
- –Operational correctness depends on consistent configuration and run discipline
IT operations teams
Mirror NAS shares to remote cloud storage
Synchronized off-site copy
System administrators and IT operations teams
Script cloud file backups from servers
Repeatable file backups
Show 2 more scenarios
Security-conscious administrators and developers
Encrypt backups before uploading to cloud
Encrypted files at rest
Applies client-side encryption ahead of copy or sync jobs so stored cloud data remains encrypted.
Data managers and infrastructure teams
Archive large NAS libraries with checksums
Verified archival copies
Copies large libraries to archival targets and verifies transferred content using hashes or checksums.
Best for: Fits when teams accept file-level replication and want configurable, script-driven backups beyond vendor backup wizards.
GoodSync
SMBFile synchronization and backup software supporting NAS, cloud, and local destinations with real-time and scheduled sync.
GoodSync job scheduling plus detailed job history supports fast root-cause for partial transfer failures and restore misses.
GoodSync performs scheduled NAS to NAS replication and file-based backup by continuously syncing directory trees with per-file change detection. It supports SMB and NFS endpoints and can push verified copies across WAN links using configurable transfer options and post-transfer checks.
- +Accurate directory-level synchronization with predictable change handling
- +SMB and NFS endpoint support fits mixed NAS and server estates
- +Job history and failure visibility help track transfer and restore issues
- +Retention settings support practical backup lifecycles
- –Primarily file-based coverage can limit volume-level restore workflows
- –Complex multi-job topologies can require disciplined scheduling governance
- –NAS-side immutability and object-lock style retention require external support
- –Large-scale change bursts can reduce throughput without tuning
Small and midsize business IT teams
Back up folders from NAS on a schedule
Regular incremental copies
Infrastructure and operations teams
Send verified backups to FTP or SFTP
Offsite copies with recovery logs
Show 2 more scenarios
Small business administrators and mobile workers
Copy laptop folders to removable drives
Offline copies with versions
Incrementally copies laptop folders to USB or removable storage with retained earlier versions.
Businesses handling portable archives
Create encrypted incremental offline archives
Recoverable offline archives
Builds incremental, versioned copies of selected documents or media on transportable storage with encryption options.
Best for: Fits when NAS backups need scheduled replication over SMB or NFS with file-level restores and clear job history.
BorgBackup
SMBOpen-source deduplicating archiver designed for efficient compressed and encrypted backup of local and remote file systems.
Repository integrity is enforced with chunk-level checksums and end-to-end verification during backup and restore operations.
BorgBackup is a NAS backup option built around a deduplicating repository and the Borg command line, which suits teams that prefer local-first data protection over appliance workflows. It performs snapshot-style backups by creating successive repository states with content-defined chunking and it verifies data with checksums during normal operations.
- +Client-side deduplication reduces storage writes and accelerates repeated backups
- +Built-in integrity checks verify repository chunks during backup and restore
- +Portable repositories allow mountable restores and offline verification workflows
- +Pre and post hooks enable custom encryption handling and retention automation
- –Configuration and scheduling require scripting and operational discipline
- –No native NAS GUI means day-to-day use depends on CLI familiarity
- –Cross-NAS workflows depend on SSH or mounted paths rather than NDMP
- –Restore automation is less turnkey for nontechnical operators
Small IT teams and NAS administrators
Archive NAS data to local or SSH repositories
Centralized backup copies
Linux system administrators
Back up changing Linux server files
Efficient incremental history
Show 2 more scenarios
Distributed IT teams
Store encrypted off-host backups over SSH
Protected off-host repositories
Transmits encrypted archives over SSH to a separate host or storage system for off-host copies.
Technical home users
Schedule encrypted NAS-backed home computer archives
Encrypted deduplicated recovery points
Creates scheduled archives that preserve documents and photos with encrypted, deduplicated recovery points.
Best for: Fits when NAS environments need checksum-verified deduplicated repositories and controlled automation with scripting.
AOMEI Backupper
SMBWindows backup and recovery software supporting system, disk, and file backup to NAS and network shares.
Mountable recovery points for selecting and restoring backed-up content without booting full recovery workflows.
AOMEI Backupper is a Windows-focused NAS backup tool that targets file-level and system-oriented recovery workflows, including scheduled backups to network shares. It supports snapshot-style retention on local and attached storage and focuses on recoverability through mounting and restore media creation.
- +Windows-first workflow for configuring network destinations and schedules
- +Restore media creation supports offline bare-metal recovery testing
- +Retention planning is workable for small NAS share backup goals
- +Mountable recovery points improve selection during file restores
- –Not designed as NAS-native replication for array-to-array RPO control
- –Automation depth lags tools with documented admin and API integration
- –Deduplication and WAN optimization features are not the focus
- –Large-scale multi-tenant governance controls are limited
Home users and small businesses
Keep scheduled NAS-related images on external drives
Separate local recovery points
Small business IT teams
Automate recurring workstation backups
More consistent protection
Show 2 more scenarios
Windows administrators and lab operators
Verify backup and clone integrity before use
Higher confidence in backups
Runs verification or checksum checks on stored images or clone results to detect potential corruption early.
Windows users and small-office administrators
Restore individual files without rebuilding systems
Recovered documents and folders
Recovers selected user data from file and folder backups or image sets instead of running full system restores.
Best for: Fits when a small office needs dependable Windows-to-NAS backup and frequent file restores without NAS-native replication tooling.
QNAP Hybrid Backup Sync
SMBQNAP-native backup and synchronization tool supporting local, remote, and cloud destinations from QNAP NAS devices.
Hybrid Backup Sync’s single-job orchestration for mixed destination types with per-target scheduling and retention rules.
QNAP Hybrid Backup Sync manages backup jobs that can write to another QNAP system or to external storage targets reachable over the network. Each job can be configured with scheduling, retention behavior, and source selection so operations teams can standardize how backups run across multiple datasets. Job execution status and history are recorded in the QNAP administration interface so failures are visible without switching tools.
- +One job interface for scheduled NAS-to-NAS and NAS-to-external backup targets
- +Per-destination scheduling and retention controls reduce manual cleanup work
- +Tight coupling with QNAP storage administration and share configuration
- +Built-in job history for tracing failed tasks and verifying completion
- –Best results rely on QNAP-to-QNAP environments and matching feature sets
- –Automation depth is limited for complex multi-step backup workflows
- –Global governance like tenant-style RBAC is less granular than enterprise backup consoles
- –Restore planning can require manual mount or file-by-file validation
Operations teams managing NAS fleets
Standardize scheduled backups across multiple datasets
Repeatable backup runs
Network administrators enabling SMB and NFS
Back up to SMB and NFS destinations
Flexible network destination backups
Show 2 more scenarios
Storage administrators with QNAP snapshots available
Create snapshot-based recovery points faster
Faster recovery points
Protects source datasets using snapshot-based approaches when QNAP storage features support snapshots.
IT staff handling file-level recovery
Browse or mount recovery points for file restores
Faster file restore
Uses destination artifacts so mounting or browsing recovery points can support quick file-level restoration workflows.
Best for: Fits when QNAP admins need scheduled NAS backups with centralized task monitoring and share-based targets.
Conclusion
After evaluating 10 nas backup software, Comet Backup stands out as our overall top pick — it scored highest across our combined criteria of features, ease of use, and value, which is why it sits at #1 in the rankings above.
Use the comparison table and detailed reviews above to validate the fit against your own requirements before committing to a tool.
Frequently Asked Questions About Nas Backup Software
What software best supports multi-tenant NAS backup administration with an API for managed service providers?
Which tools provide snapshot-based restore points for NAS-stored data versus file-level browsing only?
How does encrypted, portable backup storage differ between Duplicati and Restic for NAS repositories?
When backing up CIFS/SMB shares and NFS exports, which products cover both paths from a single workflow?
What breaks if NAS backup workflows rely on Windows VSS integration for consistent restore points?
Which option offers the fastest operational triage when a NAS backup run only partially completes?
Where does QNAP Hybrid Backup Sync fall short compared with Comet Backup for non-QNAP destinations and administration models?
How do BorgBackup and Restic handle verification differently during backup and restore operations on NAS data?
Which tools fit NAS-to-NAS replication when operators need script-driven automation instead of a NAS vendor UI?
When a restore must start with selecting content rather than running full recovery workflows, which NAS backup tools make that practical?
Tools reviewed
Primary sources checked during evaluation.
Referenced in the comparison table and product reviews above.
How to Choose the Right Nas Backup Software
We separate NAS backup software options by how they protect your stored data end-to-end, not by marketing. The biggest split usually shows up in retention window, restore workflow, and automation and API surface.
Retention window controls how long backups last
Why it matters
Retention window determines how far back you can recover when you discover corruption, deletion, or ransomware impact. If it’s rigid or hard to model, your protection plan won’t match real incidents.
How to check
In a setup screen or policy editor, set retention for multiple points in time and confirm it applies per share or dataset where you expect. Ask what happens when the retention limit is reached and whether older points get purged safely.
Restore workflow for files and volumes
Why it matters
Restore workflow decides whether recovery is a quick copy or a time-consuming rebuild. NAS backup use cases often fail at restore, not at backup.
How to check
Run a small backup job, then restore a single sample file and also attempt a broader restore using the tool’s expected method. Time the steps and note what credentials, paths, and permissions must be present for the restore to complete.
Data integrity checks during and after backup
Why it matters
Data integrity checks reduce the risk of restoring backups that only partially captured or silently corrupted. This matters when throughput is high or storage is busy.
How to check
Look for a setting or log entry that mentions checksums or integrity verification. After the run, inspect the job status and read the logs for pass/fail style results, then repeat after forcing an error scenario (if the UI supports it).
Automation and API surface for policies
Why it matters
Automation and API surface lets you keep jobs aligned with changes in NAS shares, users, and schedules. Without it, backups drift from what you intended.
How to check
Request the admin UI for job creation via API (or check whether there’s a documented endpoint list). Try importing or updating one policy through automation (even a dry run), then confirm the job runs with the updated schedule.
Admin and governance controls with audit log
Why it matters
Admin and governance controls with audit log help you trace who changed schedules, retention, and targets. For NAS backup, that audit trail becomes part of incident response.
How to check
Create a low-privilege user and verify which actions they can and can’t perform, especially changing retention and targets. Then trigger a policy change and verify it appears in an audit log with timestamps and details.
Red flags
- Retention window settings don’t match your recovery timeline
- Restore workflow only works for an all-or-nothing recovery
- Integrity checks are unclear or missing from job logs
Fit by situation
- If you need to recover from long-dwell incidents, prioritize retention window and verify purge behavior.
- If your biggest time sink is bringing a few files back, prioritize restore workflow for files and volumes.
- If you run backups as part of an operational process, prioritize automation and API surface.
Funding and competing interests
This study was co-funded by several of the vendors assessed in it. No single vendor funded it. Funders could propose the market studied.
They had no role in selecting vendors, setting or weighting criteria, analysing data or drawing conclusions, and they received the same factual-accuracy check as every other vendor assessed.
Market definition, inclusion rules and criteria weights were fixed by an editor before research began and did not change afterwards. Editorial process →
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