FreeFileSync

FreeFileSyncSoftware introduction

FreeFileSync The first is the file synchronization function, which can perform one-way or two-way synchronization between two specified folders. Click the green gear icon in the upper right corner of the program window to set relevant parameters; during this period, you can also customize the files that need to be filtered. There are two filtering methods: "Include" and "Exception" to define the types of files that need to be filtered. This depends on your personal needs.

In addition, it is a function to compare files in different folders to see if they are the same. However, this function is more suitable for use before synchronization. The comparison results will be directly displayed in the list for easy viewing, so that you can clearly know whether synchronization is needed and save system resources.

FreeFileSyncSoftware function

​​ Sync folders on network shares and local drives

​ Sync mobile devices via MTP (Android, iPhone, tablets, digital cameras)

​ ​ Sync with Google Drive cloud storage

Free FTP client: Sync via FTP (File Transfer Protocol) and FTPS (SSL/TLS)

Access files online using SFTP (SSH File Transfer Protocol)

​​ Detect moved and renamed files and folders

Manage versions and save history of deleted/updated files

Compare and synchronize multiple files in parallel

Display drive space usage as a directory tree

Copy locked files (Volume Shadow Copy Service)

​ Detect conflicts and propagate deletions

Compare files by content

Configuring symbolic link handling

​ ​ Automatically synchronized as a batch job

Processing of multiple folder pairs

Comprehensive and detailed error reporting

Copy NTFS extended attributes (compression, encryption, sparse)

Copy NTFS security permissions

​​Copy NTFS alternate data stream

Copy HFS+ extended attributes and acl

Supports long file paths exceeding 260 characters

Fail-safe file replication prevents data corruption

Cross-platform: runs on Windows, Linux, macOS

Use macros %time%, %date%, etc. for repeated backups

Expand environment variables, such as %UserProfile%

Access variable drive letter (USB disk) by volume name

​ ​ ​ Native 64-bit support

Prevent disk space bottlenecks by optimizing synchronization order

Complete Unicode support

​​ ​Highly optimized runtime performance

                                                                                                                                                                                                                                                                                     both both included and excluded via filters.

Free efilesync portable and local installations available

Handling daylight saving time changes for FAT/FAT32

​​Case-sensitive synchronization

Serialization of multiple users accessing the same (network) folder via folder locking

Fully localized user interface available in over 30 languages

FreeFileSync FAQ

When synchronizing, it prompts "The file is occupied" or "Insufficient permissions"?

Solution:

Close the program occupying the file (such as editor, player).

Run FreeFileSync as administrator (Windows).

Check the destination folder permissions (make sure the user has read and write permissions).

FreeFileSync update log