Fast, efficient and encrypted backup program that deduplicates data and stores snapshots in local, SFTP, S3, Azure, GCS and other backends.
37.1K+154 this week2KGoBSD-2-ClauseUpdated yesterday
4 alternatives
4 best open-source alternatives to Backblaze (2026)
Looking for a free, open-source alternative to Backblaze? These 4 projects can replace it. Each one passed our quality screening and is explained in plain words, so you can compare stars, license and maintenance at a glance.
How to choose
All three back up encrypted, deduplicated data to storage you choose, rather than tying you to one service the way Backblaze does. Decide first whether you want a GUI: restic is a backup program you run from the command line, while kopia offers both a CLI and a GUI. If several computers need to back up to the same cloud storage, duplicacy is built around that case.
- resticBest for people comfortable on the command line who want snapshots stored on local, SFTP, S3, Azure, GCS or other backends.
- kopiaBest for people who want a GUI as well as a CLI for cross-platform, incremental snapshots.
- duplicacyBest for people who need several computers to share one cloud storage for their backups.
Quick comparison
| Project | Stars | License | Last commit |
|---|---|---|---|
| restic/restic | ★ 37.1K | BSD-2-Clause | yesterday |
| kopia/kopia | ★ 14.6K | Apache-2.0 | 5 days ago |
| gilbertchen/duplicacy | ★ 5.7K | Other | 12 days ago |
| blinkdisk/blinkdisk | ★ 195 | AGPL-3.0 | 9 days ago |
Cross-platform backup tool with encrypted, deduplicated, incremental snapshots saved to cloud, network, or local storage, with CLI and GUI.
14.6K+61 this week789GoApache-2.0Updated 5 days ago
A cross-platform cloud backup tool using lock-free, database-less deduplication so multiple computers can share one cloud storage.
5.7K360GoOtherUpdated 12 days ago
A desktop app for encrypted, versioned backups of your files to local drives, cloud storage, or managed BlinkDisk storage.
195+2 this week17TypeScriptAGPL-3.0Well maintainedUpdated 9 days ago
FAQ
- Is there a free, open-source alternative to Backblaze?
- Yes. The most popular open-source alternatives to Backblaze on Repolode are restic, kopia, duplicacy.
- Which Backblaze alternative should I choose?
- restic has the most GitHub stars and is released under BSD-2-Clause. Compare the license and last commit of each option in the table above before choosing.
How this list is made: AI reads each project's documentation to match it with products it can replace, every project passes our quality screening, and the list is ranked by GitHub stars. Stars updated Nov 7, 2026. How Repolode works