shouldiuse.io

Comparison

Syncthing vs Rsync

Syncthing and Rsync both land on Depends.

Syncthing versus Rsync
CompareSyncthingRsync
VerdictDependsDepends
Best forTechnical users syncing their own devicesSysadmins scripting server backups
Who it's not forNon-technical users wanting plug-and-play setupNon-technical users wanting point-and-click sync
PrivacyNo known public vulnerabilities found in the sources reviewed.³Actively targeted: Jan 2025 six-vulnerability RCE chain, 33 CVEs fixed in 3.5.0 (Aug 2026), new CVEs disclosed May 2026.13
Support qualityCommunity forums only; no vendor supportCommunity-only; 2026 funding and maintainer controversy
Public sentimentForum users actively lean on the docs for setup help; routine tasks like adding folders or opening firewall ports generate the most questions.⁴Users treat rsync as the default server sync tool for decades, but complain about slowness versus rclone and fragile version upgrades.
Biggest gotchaNo vendor support . fixes and releases depend on volunteer maintainers⁹Never expose the rsync daemon to the internet . Rapid7 found oceans of exposed data14

Pick Syncthing when

  • Technical users syncing their own devices
  • Privacy-focused users avoiding cloud storage
  • Home-lab and NAS owners
  • Cross-platform Linux/Windows/Mac sync

When Syncthing is not a fit

  • Non-technical users wanting plug-and-play setup
  • Teams needing cloud sharing links or browser access
  • Anyone requiring vendor support, SLAs, or an admin console
  • Anyone treating it as backup . deletions propagate to all devices

Pick Rsync when

  • Sysadmins scripting server backups
  • Homelab and NAS replication
  • Large one-off data migrations
  • Low-bandwidth incremental syncs

When Rsync is not a fit

  • Non-technical users wanting point-and-click sync
  • Anyone running the daemon on the public internet
  • Teams needing real-time two-way sync
  • Backup pipelines that can't tolerate breaking changes between releases

Sources

  1. Welcome to Syncthing's documentation! . Syncthing documentationdocs.syncthing.net
    official
  2. Syncthing documentation v1.29.7docs.syncthing.net
    official
  3. Syncthing Security pagedocs.syncthing.net
    security
  4. Syncthing. How to add a folder for synchronization? (SynoForum)synoforum.com
    review
  5. Basic file sharing using nemo (Manjaro forum)forum.manjaro.org
    review
  6. Files system for a portable SSD (CachyOS forums)discuss.cachyos.org
    review
  7. Syncthing P2P file sync (open-source project overview)rustacean.tistory.com
    review
  8. Syncthing basic sync walkthrough (cnblogs tutorial)cnblogs.com
    review
  9. Docs.syncthing.net news feeddeets.feedreader.com
    news
  10. How Rsync Works . A Practical Overviewsamba.org
    official
  11. Rsync Security Advisoriessamba.org
    official
  12. VU#952657 . Rsync contains six vulnerabilitieskb.cert.org
    security
  13. Detecting and mitigating CVE-2024-12084 rsync RCEsysdig.com
    security
  14. An Ocean of Data Exposed Through rsyncrapid7.com
    security
  15. 4x faster network file sync with rclone (vs rsync)jeffgeerling.com
    news
  16. tar: a slop-free alternative to rsyncdrewdevault.com
    news