Free backup software for local and cloud copies in 2026

File synchronization and backup solve different recovery problems.

If your laptop dies, a synced cloud folder is helpful. If ransomware encrypts everything, a file gets accidentally deleted, or a bad sync wipes a folder, “my files were mirrored somewhere else” is not always enough. A real backup strategy needs versioning, separation, or both.

Version history, a separate destination, and a tested restore determine which failures a free setup can recover from.

Sync is not the same as backup

Google Drive can keep an offsite copy of documents and active folders, but it is sync-based protection rather than full backup software. Duplicati creates scheduled, encrypted backups to a destination you control. Once the dataset exceeds free cloud limits, Backblaze Personal Backup is a paid option for one computer. Apple users should enable iCloud Backup, then check whether its 5GB allocation can hold the device backup.

Decide first whether you need file backup or full system backup, because fast full-system recovery is where free setups are weakest. A scheduled backup tool with a separate destination is more work than a synced folder, but it behaves more like real backup.

Where a no-cost backup plan fits

Free storage and open-source backup tools can cover:

• protecting important documents and small photo libraries
• giving you an offsite copy without much setup
• covering one piece of a 3-2-1 strategy

The setup becomes restrictive for:

• large-capacity archival storage
• fast full-system disaster recovery
• team-wide backup management
• long version history across big datasets

A small file collection can combine a sync service, a scheduled backup job, and a local drive instead of expecting one tool to cover every recovery path.

Cloud destinations for those jobs, with their usable space after shared quotas, are compared in the free cloud storage comparison.

Five tools for local and offsite backups

1. Google Drive: best free offsite copy for documents and active folders

Google Drive for desktop can synchronize selected folders and send photos and videos to a Google account. The account includes up to 15GB shared across Drive, Gmail, and Google Photos, and accounts created since March 9, 2026 stay at 5GB until a phone number is verified. Check existing usage before choosing folders.

This is useful for current documents that need browser and mobile access. It is not a full-system backup, and synchronized deletions or overwrites need to be caught inside Google’s current recovery window. Use a separate backup job when retention is important.

2. Duplicati: best free backup software for scheduled encrypted backups

Duplicati turns backup into a scheduled job rather than a mirror, running incremental backups to a destination you choose. The open-source project’s documentation covers AES-256 encryption, Windows, macOS and Linux support, and destinations that include local disks and cloud storage.

Configuration and restores take more attention than simple file sync. Define the schedule, retention, destination credentials, and encryption passphrase deliberately, then test a restore. Keep the passphrase outside the backed-up computer because an encrypted backup cannot help if its only key is lost with the device.

3. Backblaze Personal Backup: paid option for larger datasets

Backblaze Personal Backup is the paid boundary in this guide. Its current pricing page lists $99 per year for unlimited user-created data on one computer, and its version-history documentation states that 30 days is included with an option to enable one year at no additional cost.

It becomes relevant when a photo, video, or work archive will not fit a practical free allowance. Compare its restore methods and exclusions with the dataset rather than splitting one backup across several unrelated free accounts.

4. iCloud Backup: best built-in backup for Apple users

On iPhone and iPad, iCloud Backup is already built in, while iCloud Drive handles file sync across Apple devices. Apple includes 5GB of iCloud storage, shared by backups, photos, files, and other synchronized data.

Enable the device backup, then inspect its estimated size. The free allocation may not fit even one device once photos and messages are included, and iCloud is not a complete Mac backup strategy. Pair it with Time Machine or another independent Mac backup.

5. Duplicacy: best for advanced users and NAS-oriented setups

Duplicacy deduplicates backups and supports self-managed storage such as a NAS. Its license page describes the command-line edition as free for personal use, while the graphical interface uses a commercial license after its trial.

It makes sense when repositories, command-line operation, and destination management are already familiar. Duplicati provides a more approachable browser interface for a first scheduled encrypted backup.

Compare destinations, scheduling, and encryption

What paying adds to each layer

Only Backblaze is a paid product outright; the others charge for storage, monitoring, or a graphical interface. Each company’s list price in September 2026:

Backblaze’s flat price is the simplest once a dataset passes a few hundred gigabytes, because the storage-based options grow with every tier.

A three-layer starting point

One no-cost arrangement is:

1. Use Google Drive or iCloud for an offsite copy of selected active files.
2. Use Duplicati to create a scheduled encrypted backup at another destination.
3. Keep a local external drive for a faster restore path.

Each layer addresses a different failure. Test a restore from the scheduled job before relying on it.

Keep one local copy and one offsite copy

Restore one file from each layer before trusting the setup. Delete a file you can live without, then bring it back from the Google Drive or iCloud copy, the Duplicati job, and the external drive in turn. The test shows which copy is current and how long a real recovery takes. Move to Backblaze when the dataset no longer fits a practical free storage plan.

The cloud destination provides separation from the computer, while a local external drive shortens a large restore.