the catalog · 💾 Cloud storage
Duplicati
★ 12kScheduled encrypted backups to S3, Google Drive, and 30+ other destinations through a friendly web UI.
Duplicati does the job of Backblaze, self-hosted. It is MIT-licensed, so you can do essentially what you like with it, and it installs in about one command. Backblaze bills $9 for it. 12k stars on GitHub.
Open-source replacement for Backblaze.
- Licence
- MIT
- Self-hosting
- Easy
- The paid one costs
- $9
- GitHub stars
- 12k
Is it actually a replacement?
We have not written a verdict on Backblaze yet, so this page says what Duplicati is rather than judging what you would give up. When that product gets a page, this one will link to it.
How Duplicati runs
Where it runs
Duplicati runs on on your machine.
Installing it
Signed Windows/macOS/Linux package or Docker container, then configure backups through its local web UI.
Where your data lives
Each backup target contains encrypted compressed `.dblock` data volumes, `.dindex` indexes, and one `.dlist` manifest per version; a local database accelerates catalog and restore operations.
What setup takes
The first setup is not just an install: you must supply destination credentials, choose encryption and retention, preserve the passphrase, and understand how to rebuild from remote volumes if the local database is lost.
The catch compared with Backblaze Personal Backup
It can automate encrypted backups, but you must choose and pay for storage, protect credentials, monitor jobs, and test restores yourself instead of getting Backblaze's managed service.
Duplicati questions
Is Duplicati open source?
Yes — it is released under MIT.
Can I self-host Duplicati?
Yes — we rate it easy to self-host, and it runs on on your machine. Signed Windows/macOS/Linux package or Docker container, then configure backups through its local web UI.
Does Duplicati run locally?
Yes — it runs on your own machine rather than on a server, so your data stays on your disk.