The Best S3 Bucket Backup Tools in 2026: 8 Options Compared

AWS’s own S3 FAQ says it plainly: S3’s durability system doesn’t protect against accidental or malicious deletes. S3 bucket backup tools exist for that gap, and I judged these eight mostly on how cleanly they hand back the prefix you lost.

Here’s the short list:

Eon is the best S3 bucket backup tool for cloud-first AWS teams with many accounts because it finds new buckets on its own, captures objects without leaning on S3 Versioning, and restores a bucket, a prefix, or one object into any Region from a single copy.

AWS Backup is the native base layer most AWS teams keep, and Clumio by Commvault suits AWS-only stacks that want 15-minute recovery points. Druva hands the whole job to a SaaS service, while Rubrik fits teams buying security-led cyber recovery.

HYCU makes sense when S3 sits beside Nutanix and SaaS apps, Veeam when buckets belong in the same backup server as your VMs, and MSP360 when you need a few buckets copied to another cloud.

What I checked in each tool

Four things decided the order.

• Restore granularity: Whether I can pull back one object or one prefix without restoring the whole bucket, and how many items a single job allows.
• Versioning dependence: Whether the tool needs S3 Versioning turned on, since every version bills as a full object and plenty of older buckets never had it.
• Where the copy lives: The same account, a separate vault, or a vendor’s cloud, because a copy your production credentials can delete is a copy an attacker can delete too.
• Fee shape: Per-GB storage is the easy part, so I looked hard at per-object fees, restore charges, and how small objects get billed.

1. Eon: best for cloud-first AWS, Azure, and Google Cloud environments with buckets in many accounts

The company’s lane is cloud data protection and recovery, and it suits the estate where no one can list every covered bucket with any confidence. Setup is one read-only role, and there are no agents, appliances, or clusters to look after.

Best for: Platform and security teams running S3 across dozens or hundreds of AWS accounts, especially when some buckets predate any versioning policy (every estate has a few).

New buckets get discovered and classified automatically through Cloud Backup Posture Management, a category the company created, which applies policy without manual tagging. I weight this above any restore feature, because the bucket that hurts is the one nobody enrolled.

How it backs up a bucket: It captures objects incrementally after the first backup and never depends on source-bucket versioning. Copies land in an immutable, logically air-gapped vault kept apart from the source account, which production credentials don’t open.

You can pull back one object, one prefix, or the entire bucket as of any point in time, and the data comes straight out of backup storage without a rehydration step. That single copy restores into any Region you pick (so no replica bucket sits on the bill).

Global Search covers every snapshot without an index to set up, so you can locate the object before restoring anything. With ransomware detection (add-on), each backup gets checked for mass overwrites, version flooding, and staged encryption, and you’re pointed at the last clean recovery point.

Pricing: Usage-based, billed per GB per month on protected storage, with no tier ladder and flexible spending commitments, and the company puts S3 protection at up to 50% lower cost. There are no retrieval, restore, or egress fees, and an S3 Vault Cold Tier holds long-term copies for less.

Watch out for: Its on-prem support is limited, so an estate that’s still mostly on-prem needs a separate tool for the data center. Google Cloud Storage only restores at the bucket level, and for a few buckets in a single account, AWS Backup on its own usually does the job.

2. AWS Backup: the native policy layer most AWS teams keep

AWS Backup is where almost every AWS team starts, and I’d keep it running under any third-party tool. It manages backup policy centrally across accounts in AWS Organizations, and Backup Audit Manager checks those policies against controls you define.

Best for: Teams that live mostly in AWS, run a modest count of versioned buckets in one organization, and want S3 handled by the backup plans already covering EC2 and EBS.

How it backs up a bucket: Continuous mode covers a 35-day point-in-time window, as recent as 15 minutes back, and periodic snapshots can be retained as long as 99 years. Either way the bucket needs S3 Versioning, and continuous mode leans on its EventBridge notifications.

A single item-level job tops out at five objects or folders, and whatever comes back lands in S3 Standard. You can copy backups to other accounts and Regions, but a copy made from a continuous backup has no point-in-time restore.

As of August 2026, backup data is also readable over standard S3 APIs, so you can open a file without kicking off a restore job.

Pricing: As of October 2026, warm backup storage for S3 costs $0.05 per GB-month in US East (N. Virginia), with a $0.035 low-cost warm tier after 60 days. Restores cost $0.02 per GB, and objects under 128 KB bill as 128 KB (painful for buckets full of tiny log files).

Watch out for: If EventBridge notifications get switched off on a bucket, AWS’s docs say continuous backup fails silently, with no alert and no failed job. Check that setting on every bucket, because nothing else will tell you.

3. Clumio by Commvault: 15-minute recovery points for AWS-only stacks

Clumio, which Commvault acquired in 2024, is Commvault’s AWS-native line, and its S3 product runs as a managed service. It offers two backup types: SecureVault, a copy stored outside the production account, and Backtrack, an in-account rollback.

Best for: AWS-only teams with very large buckets that want a tight recovery point and are comfortable modeling per-object fees. Commvault says it has tested 80 billion objects and 40 PB in a single bucket.

How it backs up a bucket: SecureVault seeds a full copy and runs incrementally after that, and with Continuous Backup on, Clumio lists a 15-minute RPO. Restores work at bucket, prefix, or object level, into the same bucket, a different one, or a bucket in another account and Region.

The feature I’d demo first is Instant Access, which reads any point-in-time backup over S3 APIs and skips the full restore. Backtrack rolls a bucket back faster, though the data stays in your own account and S3 Versioning has to be on there.

Pricing: As of October 2026, SecureVault Standard is $0.025 per GiB-month with $1.50 per million managed objects on top, and Archive is $0.010 per GiB-month. Restores carry $0.040 per GiB for instant access, $0.09 per GiB of retrieval, and $0.025 for every 1,000 API requests.

Watch out for: Glacier and Glacier Deep Archive objects fall outside what Clumio supports, and a first Backtrack sync can wait up to 48 hours on S3 Inventory. Archive-tier restores begin after 24 to 48 hours, so keep recent data in Standard.

4. Druva: SaaS-delivered protection for teams that also back up endpoints and SaaS apps

Druva runs as a fully managed SaaS service, and for many buyers S3 becomes one more workload next to the endpoints and SaaS apps they already protect there. Backups sit in Druva Cloud, outside your AWS organization.

Best for: Teams that want a third party to hold their S3 backups with no infrastructure to run, and whose data sits mostly in S3 Standard or Intelligent-Tiering.

How it backs up a bucket: You group buckets, apply a policy for schedule and retention, and Druva takes snapshots of them. Restores return objects, whole buckets, or metadata, filtered by size, type, or time, to the original bucket or another one, and to a different account or Region.

Druva advertises no egress fees on its S3 backups, which matters on the day you pull a large prefix back out. The copy lives in a vendor-run environment, and that’s the isolation Druva sells, so restores run through its console and workflow.

Pricing: As of October 2026, Druva sells Business, Enterprise, and Elite plans on credits, where one credit equals a TB-month of stored backup data, and the dollar figure comes from a quote. Data Lock immutability and cross-Region backup start at Enterprise.

Watch out for: S3 coverage spans the Standard and Intelligent-Tiering classes, and objects encrypted with customer-provided keys (SSE-C) stay out of scope. Credits are prepaid, and Druva’s help center says backups are suspended once usage reaches 110%.

5. Rubrik: security-led cyber recovery for teams already running Rubrik

Rubrik calls itself the Security and AI Operations Company, and its S3 protection, generally available since November 2023, makes the most sense as part of that security story.

Best for: Organizations already running Rubrik, often with a large on-prem footprint, that want S3 under the same SLA Domains and the same security team.

How it backs up a bucket: Onboarding deploys a CloudFormation stack and a cross-account role, then SLA Domains assign protection by account, bucket, or tag, with a full first backup and incrementals after that. Buckets in S3 Standard or S3 Standard-IA can be protected.

Restores bring back an entire bucket or individual objects, in place or to another bucket, and Rubrik says both can go to any Region within any account.

Threat Hunting scans backups with file patterns, hashes, and YARA rules to pinpoint a likely clean snapshot, which works on S3 objects because they’re files, though a managed database like RDS or Aurora never exposes its contents as files to scan.

Pricing: As of October 2026, every Rubrik edition (Foundation, Business, and Enterprise) is sold through sales, and Threat Monitoring and Threat Hunting require Enterprise Edition. Customer-hosted setups also run compute and storage in your own AWS accounts, so budget for both.

Watch out for: You choose between customer-hosted, where you own the networking, IAM roles, and security posture, and Rubrik Managed, which moves data outside your AWS organization by design. Neither is wrong, but that choice decides who answers for the vault.

6. HYCU: S3 protection beside Nutanix and a long list of SaaS apps

HYCU’s home turf is Nutanix, where it holds multiple Nutanix Validated Designs, and its R-Cloud platform extends the same console to SaaS apps and cloud services like S3.

Best for: Nutanix shops and teams with a long tail of SaaS apps who’d like S3 handled in the same console, with backup copies kept under their own AWS account.

How it backs up a bucket: Per HYCU’s S3 page, you can protect a bucket whole or object by object, with support for cross-region replication setups and versioning management. Restored files go to the source bucket or a fresh one, and pairing copies with S3 Object Lock makes them immutable.

The platform pitch is customer-controlled storage (“your cloud, your storage, your rules”), which suits teams whose policy says backup copies stay in accounts they own.

Pricing: As of October 2026, object storage protection is quote-only on HYCU’s pricing page, next to per-user SaaS prices such as $2.25 per user per month for Microsoft 365.

Watch out for: Self-managed deployments run on a backup controller you deploy, which HYCU sizes at 8 vCPU cores and 8 GiB of memory on AWS, so that’s one more instance to patch. I’d also ask for a restore demo against one of your own buckets before signing.

7. Veeam: S3 buckets in the same backup server as your VMs

Veeam protects over 550,000 customers worldwide, including 80% of the Fortune 500, and most of them know it from VM and hypervisor backup. Its S3 support lives in Veeam Backup & Replication v13 as an object storage backup job.

Best for: Shops already running Veeam on-prem that would like their S3 buckets handled by that same backup server, policy set, and repository layout, all on the portable Veeam Universal License.

How it backs up a bucket: A backup proxy reads the bucket into whichever repository you pick, so immutability depends on that repository being immutable. Recovery covers full buckets, single objects from a restore point, or several versions at once, into the source location or a new one.

Point-in-time rollback only touches objects that changed since then, so a big recovery doesn’t balloon into copying the full bucket.

Pricing: As of October 2026, Veeam meters Data Platform licenses by workload, and for object storage each license instance stretches to 500 GB of protected data. You’ll get the dollar figure from a quote.

Watch out for: You run the backup server and proxies yourself, so this is infrastructure with a patch cycle. Veeam’s help center also rules out prefix restores from the long-term repository, and Glacier Flexible Retrieval, Deep Archive, and SSE-C objects sit outside the job’s scope.

8. MSP360: a budget way to copy a few buckets to another cloud

MSP360 Backup is a server and desktop backup agent, and the part that treats S3 as a source is the Cloud to Cloud plan type in MSP360 Backup for Windows.

Best for: Small teams and MSPs that want a scheduled copy of an S3 bucket in another cloud, run from a Windows machine they already manage.

How it backs up a bucket: You pick a source cloud account, choose buckets, folders, and files, and schedule the plan, such as copying an S3 bucket to Microsoft Azure every week. Plans keep a set number of versions per file, purge older ones on a schedule, and can encrypt contents with AES.

Putting the copy in a second cloud provider gives you a recovery path even if the AWS account itself is lost, and you can turn on Object Lock for the destination bucket.

Pricing: As of October 2026, per-computer pricing for MSP360 Backup is $29.99 a year on Windows, $109.99 on Windows Server, and $179.99 for Ultimate, and storage is a separate bill. Confirm that your edition has Cloud to Cloud plans before paying.

Watch out for: Retention works per file version and everything runs from a Windows agent, so I’d treat MSP360 as a second copy for a small estate. Across hundreds of accounts and millions of objects, it’s the wrong shape for the job.

Are Backblaze B2, Wasabi, and Cloudflare R2 S3 backup tools?

These three come up whenever S3 backup costs get discussed, and for good reason: they’re S3-compatible object storage services, so any tool that speaks the S3 API can write to them.

That makes them destinations. A backup tool can send copies there, while the tools on this list are the part that reads your buckets, tracks restore points, and brings back the prefix you lost.

If cheaper storage is the goal, pair one with a backup tool that writes to S3-compatible targets.

Test a prefix restore before you need one

Every tool here looks fine on a backup dashboard, which is the trap, because a green job says little about how a restore will go.

Pick one busy bucket this month, delete a test prefix (in a sandbox copy, please), and time how long it takes to get it back, from finding the right point in time to the last object landing.

Write down what it cost too, since per-object and retrieval fees only show up on a real restore. If the drill hurts in a calm week, it’ll hurt more at 2 a.m.

FAQs

Does S3 replication count as a backup?

Not by itself, because replication copies new and updated objects to another bucket as they change, so an overwrite or an encrypted object lands in the replica too. It also keeps no point-in-time history, so there’s no earlier state to roll back to.

How do I restore a single object from an S3 backup?

In AWS Backup, pick a recovery point and restore up to five objects or folders per job into a versioned bucket. Third-party tools such as Clumio and Rubrik restore individual objects from their own consoles, and Clumio can restore a whole prefix.

Can ransomware delete versioned S3 objects?

Yes, credentials that can permanently delete object versions can wipe them, and privileged users can bypass governance-mode Object Lock. Compliance mode blocks overwrites and deletes of retained versions by any user, including root, though new versions and delete markers get through.