ZipSnapNG v3.1.0.3

ZipSnapNG is a very lightweight backup tool that has advanced options such as incremental backup, data deduplication, encryption and configurable retention.

That is very impressive given its ~200KB total size. Additionally, its portable nature means it doesn't even require an installation.

Key Features:

• Incremental backup: a new snapshot is created upon each run and only new or modified files are added to it
• Binary deltas: only the portion (data slices) of the file that has changed is saved or restored
• Data deduplication: across directories/snapshots/computers, prevent storing copied/renamed/moved contents or any data slice already in the catalog
• Encryption support: generate password-protected backup sets
• Graphical interface: provide a simple graphical interface which exposes all the features
• Purge old data: remove from the catalog the oldest snapshots and associated data
• Custom action: a custom script can be executed automatically when the backup process is finished
• Multiple restore options: original location, different directory or merge with existing directories
• Windows Shadow Copy support: integration with Windows VSS to handle opened files
• Multi-volumes archive: split the backup archive in multiple, smaller files