FreeFileSync vs Syncthing

A side-by-side comparison of two self-hosted file sync & storage options — licensing, setup difficulty, resource needs, and what each one replaces.

Not the right match-up?
FeatureFreeFileSyncSyncthing
CategoryFile Sync & StorageFile Sync & Storage
LicenseGPL-3.0MPL-2.0
LanguageC++Go
Setup difficultyEasyEasy
Min. RAM128 MB128 MB
Deploymentbare-metal, binarydocker, binary, bare-metal
GitHub stars★ 1,601★ 87,439
First released20082014
ReplacesDropbox, rsyncDropbox, Resilio Sync

Why pick each one

Choose FreeFileSync if…

  • Clear visual diffs
  • Reliable batch automation
FreeFileSync details

Choose Syncthing if…

  • No central server needed
  • Very private by design
  • Lightweight and reliable
Syncthing details

Frequently asked questions

Is FreeFileSync or Syncthing better?

Neither is universally better. Syncthing has the larger community; both share a easy setup difficulty, so the decision comes down to features and licensing.

Are FreeFileSync and Syncthing free and open-source?

Yes. FreeFileSync is licensed under GPL-3.0 and Syncthing under MPL-2.0. Both can be self-hosted at no software cost.

Can I run FreeFileSync and Syncthing with Docker?

FreeFileSync: check the project docs for container support. Syncthing: yes.

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