bup vs Duplicacy: catalog facts
 bup |  Duplicacy |
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Free Free and open source. |
Freemium The command-line version is free for personal use and its source is published. The… |
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macOS, Linux, Command line |
Windows, macOS, Linux |
- Global deduplication across and within files
- Fast incremental saves
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- Several machines can back up to one bucket and share deduplicated data with no server between them
- Chunks are stored individually, so any storage with basic file operations works as a backend
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- Command line only
- Development discussion happens on a mailing list rather than GitHub issues
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- Licence is not open source; commercial use and the web interface are paid
- The free part is a command-line tool, so the friendly front end is the paid one
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Downloadable app |
Downloadable app |
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Open source |
Closed source |
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License: LGPL-2.1 |
License not stated |
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No account needed |
No account needed |
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Works offline |
Works offline |
Checked September 23, 2026 | Checked September 21, 2026 |
Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.
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