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Self-Hosting Kopia: Fast, Encrypted Backup Tool

Kopia is a modern backup tool with encryption, deduplication, and a web UI. Fast incremental backups to any storage backend.

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What Is Kopia?


Kopia is a cross-platform backup tool that creates encrypted, compressed, and deduplicated snapshots of your data.


Features


Backup

  • Block-level deduplication
  • Client-side encryption (AES-256-GCM)
  • Compression (zstd, pgzip, s2)
  • Incremental snapshots
  • Consistent snapshots (VSS on Windows)

    • Storage

  • Local filesystem
  • Amazon S3
  • Backblaze B2
  • Google Cloud Storage
  • Azure Blob Storage
  • SFTP
  • Rclone (200+ backends)
  • WebDAV

    • Web UI

  • Browser-based management
  • Snapshot browser and restore
  • Policy management
  • Repository statistics
  • Schedule management

    • Policies

  • Retention rules (keep N daily, weekly, monthly)
  • Ignore patterns
  • Compression settings per directory
  • Max file size limits

    • Kopia vs Restic vs Borg


  • Kopia: Web UI, fastest, most storage backends
  • Restic: CLI-focused, mature, widely used
  • Borg: Best compression ratios, Linux-focused

    • Kopia has the best UI. Restic has the largest community. Borg has the best compression.


    Performance


    Kopia's parallelized architecture makes it significantly faster than Restic for large repositories. Deduplication is also more efficient.


    Deployment


    1. Deploy Kopia server on TinyPod

    2. Configure storage backend

    3. Create backup policies

    4. Schedule snapshots

    5. Test restore


    Resources: 1 CPU, 512 MB RAM.


    Kopia is the most modern backup tool available. The web UI alone makes it worth choosing over CLI-only alternatives.