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Add to SafariWhen comparing Seafile vs FreeFileSync, the Slant community recommends Seafile for most people. In the question“What are the best personal file-syncing solutions?” Seafile is ranked 6th while FreeFileSync is ranked 9th. The most important reason people chose Seafile is:
Seafile community edition is licensed under GPLv2 with source code available on [GitHub](https://github.com/haiwen/seafile).
Specs
Question Ranking
Pros
Pro Free and open source
Seafile community edition is licensed under GPLv2 with source code available on GitHub.
Pro Client-side encryption
All files are transferred with AES 128 bit encryption.
Pro It supports multiple protocols
It will work with MTP, FTP, SFTP, FTPS, and more.
Pro It can copy locked files
It supports Volume Shadow Copy Service, meaning that it can copy files even if they are in use or otherwise locked.
Pro Cross-platform
It runs on Windows, Linux and MacOS.
Pro Portable version available
Pro It is quite performant
Pro Google Drive support
FreeFileSync provides direct access to Google Drive, no additional software is needed.
Pro Completely free
Source code releases are provided under GPLv2.
Pro It supports realtime sync
It can be configured to constantly monitor two folders for changes and sync them instantly when a change is detected.
Pro It lets you program batch scripts
You can program your own jobs for execution as a script.
Pro It supports case sensitive synchronization
For Unix-like systems.
Pro It supports long file paths
It can copy files and folders with more than 260 characters in their paths.
Pro It supports versioning
Versioning is keeping multiple instances of the modifications of your files.
Pro It can sync both local disks and network shares
Cons
Con Requires maintenance
You have to manually keep the server and clients up to date.
Con Does not preserve folder timestamps when copying
Con Memory hog
It runs a little slow on computers who don't have much RAM available.
Con Limited built in history
The program only remembers the latest set of folders you synced, so you have to save your syncs or create batch files.
Con A little intimidating for novices
If you never ran a file syncing software, this can be a little tricky to configure as your first one.
Con No backup encryption
Con It doesn't run on older Linux systems
It's dependencies don't allow it to run on older systems.
