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The best open source alternative to Comet Backup is Plakar. If that doesn't suit you, we've compiled a ranked list of other open source Comet Backup alternatives to help you find a suitable replacement. Other interesting open source alternative to Comet Backup is Pluton.
Comet Backup alternatives are mainly Server Backup Solutions. Browse these if you want a narrower list of alternatives or looking for a specific functionality of Comet Backup.
Backup solution with CLI, API and UI interfaces. Clean defaults, easy deployment. Encrypted, queryable backups with deduplication and compression.

Backup for lazy smart engineers - Plakar delivers encrypted, queryable backups designed for engineers who value their time and data. With CLI, API and UI interfaces, clean defaults, and easy deployment, you can create your first backup in seconds.
Key Features:
Built on Kloset Technology: Each backup is encapsulated into a self-contained, immutable, structured data asset - like containers for your data. Kloset packages data with context, structure, metadata, and integrity, ensuring your backups remain accessible for decades.
Proven Results: Teams report transforming their backup strategy from hours to minutes at 30% of previous costs with more restore points. Cryptography audit passed, trusted by critical infrastructure teams worldwide.
Free, open-source backup solution with end-to-end encryption. Self-hosted control, supports 70+ cloud providers, automated incremental backups, and zero vendor lock-in.

Pluton is a free, open-source backup solution that gives you complete control over your data protection. Unlike cloud-dependent alternatives, this self-hosted platform encrypts your data on your device before upload, ensuring privacy and security throughout the backup process.
Key capabilities include:
Set up your first backup in under 5 minutes with an intuitive interface designed for both simplicity and power. Your data stays on your infrastructure, never passing through third-party servers.
The purpose-built time series platform for high-velocity ingestion and real-time queries at scale, without sacrificing performance or cost. Download InfluxDB for free.
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