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Top 13 C Backup Projects
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Project mention: Tar files made in macOS generate "xattr" errors when expanded in Linux | news.ycombinator.com | 2026-05-03
Per this 2018 page, GNU tar seems to work with SCHILY.* encoded xattrs, but not LIBARCHIVE.* ones:
* https://mgorny.pl/articles/portability-of-tar-features.html#...
* Via: https://github.com/mxmlnkn/ratarmount/issues/145
bsdtar ≥3.7.2 apparently adds both types to its files for maximum portability:
* https://github.com/libarchive/libarchive/pull/691/files#diff...
AFAICT, bsdtar will default to "ustar" format, but will auto-switch to "pax" if needed.
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MooseFS
MooseFS Distributed Storage – Open Source, Petabyte, Fault-Tolerant, Highly Performing, Scalable Network Distributed File System / Software-Defined Storage
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I also learned this exists today: https://www.urbackup.org/
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scrypt
The scrypt key derivation function was originally developed for use in the Tarsnap online backup system and is designed to be far more secure against hardware brute-force attacks than alternative functions such as PBKDF2 or bcrypt.
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tonyhax
Japanese/American/European Universal PS1 Backup loader fork for ALL PS1 consoles, and PS2 console models SCPH-10000-SCPH-39004. (by alex-free)
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wim-backup
Win32-based UI application for backup and restore of Windows-based system images (Windows partition) using Windows Imaging Format (WIM) in WinPE environment.
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Project mention: Pocketbase – open-source realtime back end in 1 file | news.ycombinator.com | 2025-11-27
Here's the page threecheese meant to link: https://sqlrsync.com/help/alternatives
This is the very high level architecture: https://sqlrsync.com/help/architecture
Source code to the client which explains the code running on your system and how I use safe(r) sqlite3 APIs to copy a running database: https://github.com/sqlrsync/client
NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
C Backup discussion
C Backup related posts
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Pgbackrest gets funding and will be maintained
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pgBackRest Is No Longer Maintained: 3 PostgreSQL Backup Tools Compared for Production [2026]
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PgBackRest Obsolescence :(
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A Long Story about how I dug into the PostgreSQL source code to write my own WAL receiver, and what came out of it
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PostgreSQL backup tools comparison — Databasus, WAL-G, pgBackRest and Barman
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pgBackRest – Reliable PostgreSQL Backup and Restore
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UrBackup – Client/Server Open Source Network Backup for Windows and Linux
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A note from our sponsor - SaaSHub
www.saashub.com | 7 Jun 2026
Index
What are some of the best open-source Backup projects in C? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | libarchive | 3,518 |
| 2 | MooseFS | 1,982 |
| 3 | EdiZon | 1,284 |
| 4 | extract-xiso | 1,056 |
| 5 | UrBackup | 873 |
| 6 | scrypt | 514 |
| 7 | pg_rman | 503 |
| 8 | Sshd4a | 137 |
| 9 | bakelite | 131 |
| 10 | Snebu | 113 |
| 11 | tonyhax | 79 |
| 12 | wim-backup | 66 |
| 13 | client | 0 |
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