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FreeFileSync 10.3

FreeFileSync is a free backup software that helps you to compare and synchronize files and folders on Windows, Linux and macOS. It is designed to save your time setting up and running backup jobs while having nice visual feedback along the way.

Features:

- Detect moved and renamed files and folders
- Copy locked files (Volume Shadow Copy Service)
- Detect conflicts and propagate deletions
- Binary file comparison
- Configure handling of Symbolic Links
- Automate sync as a batch job
- Process multiple folder pairs
- Comprehensive and detailed error reporting
- Copy NTFS extended attributes (compressed, encrypted, sparse)
- Copy NTFS security permissions
- Support long file paths with more than 260 characters
- Fail-safe file copy
- Cross-platform: Windows, Linux, Mac OS X
- Expand environment variables like %USERPROFILE%
- Access variable drive letters by volume name (USB sticks)
- Native 64-bit support
- Keep versions of deleted/updated files
- Prevent disc space bottlenecks via optimal sync sequence
- Full Unicode support
- Highly optimized runtime performance
- Include/exclude files via filter
- FreeFileSync portable and local installation available
- Handle daylight saving time changes on FAT/FAT32
- Use macros %time%, %date%, et al. for recurring backups
- Case-sensitive synchronization
- Built-in locking: serialize multiple jobs running against the same network share

User's rating:

  • Currently 3.10/5
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| Synchronize Folders | Synchronize Files | Synchronize Directories | Freefilesync Portable | Free File Sync | Free Backup Software | Compare Folders | Best Backup Software |

History updates (Complete changelogs since the listing on this site)

10.3 [08-07-18]

New log panel showing details about the last operation
Show status of last syncs in configuration panel
Access log files via the configuration panel
Allow auto-retry and ignore errors during comparison
Show folder RealTimeSync is waiting on
[...]

Other versions : 10.2 10.1 10.0 9.9 9.8 9.7 9.6 9.5 9.4 9.3 9.2 9.1 9.0 8.10 8.9 8.8 8.7 8.6 8.5 8.4 8.3 8.2 8.1 8.0 7.9 7.8 7.7 7.6 7.5 7.4 7.3 7.2 7.1 7.0 6.15 6.14 6.13 6.12 6.11 6.10 6.9 6.8 6.7 6.6 6.5 6.4 6.3 6.2 6.1 6.0 5.23 5.22 5.21 5.20 5.19 5.18 5.17 5.16 5.15 5.14 5.13 5.12 5.11 5.10 5.9 5.8 5.7 5.6 5.5 5.4 5.3 5.2 5.0 3.13

v10.2 [07-10-18]

Limit number of file versions by age and count
Report not yet existing folders as warning instead of error
Improved comparison speed for high-latency traversals
Set up parallel file operations for versioning folder
Early clean up to avoid hitting (S)FTP connection limits
[...]

v10.1 [06-06-18]

Binary-compare multiple files in parallel
Copy file permissions when creating base folders
Fixed hang when scrolling file list (Windows)
Fixed file list mismatch when cancelling sync
Fixed delay when cancelling folder existence check
Fixed sync processing order to honor FIFO
[...]

v10.0 [05-02-18]

The installer is now ad-free!
Sync multiple files in parallel (Donation Edition)
Compare multiple files in parallel within a single folder tree
Aggregate worker threads per device during folder traversal
Reset GUI layout configuration for high DPI displays
[...]

v9.9 [03-12-18]

High DPI display support
Allow automatic retry at configuration level
Show error handling settings during sync
Avoid libpng.so dependency (Linux)
Fixed undefined behavior closing paused progress dialog
Check if buggy DLLs are loaded into address space (Windows)
[...]

v9.8 [02-10-18]

New option to auto-close progress dialog
Update last sync time if no differences found
Added 5 seconds countdown before shutdown/sleep
Preserve XML attribute creation order
Support HTTPS web accesses without redirect
Connect network share upon logon type not granted
[...]

v9.7 [01-17-18]

New configuration management panel
New column showing days since last sync
Support starting FreeFileSync via Windows Send To
Minimized memory operations for I/O buffer
Allow multiple config selections on Linux
New command line option -DirPair
[...]

v9.6 [12-09-17]

New installation command line option /disable_updates
Fixed crash when closing main dialog during sync
Fixed RealTimeSync crash after recursive mutex locking
Improved file copy performance on macOS
Clean up obsolete files during installation
[...]

v9.5 [11-07-17]

Allow to change error handling option on progress dialogs
Set up shutdown behavior during sync (summary, exit, sleep, shutdown)
Conditional execution of the post sync command line
Directly use native shutdown/sleep API (Windows and macOS)
[...]

v9.4 [10-09-17]

Fixed copying files with locked byte ranges using VSS
Fixed wrong FTP working directory reuse in libcurl
Allow retry upon failure during online update check
Repackaged Donation Edition to reduce AV false positives (Norton)
Apply correct directory path encoding during FTP traversal
[...]

v9.3 [08-11-17]

Support multiple connections per FTP folder traversal: N times speed up
Improved folder traversal time by 35% for FTP servers supporting MLSD
Use single CWD when changing FTP working directory
Maximize FTP input/output speed using prefetch/output buffers and async execution
[...]

v9.2 [07-06-17]

Use direct copy instead of transaction to speed up versioning
Replaced file existing handling with use of unique temporary names
Support SFTP authentication via Pageant/SSH agent
[...]
Keywords: free backup software, synchronize folders, synchronize files

v9.1 [05-25-17]

Fixed crash when getting invalid data after item type check
Fixed copying symlinks pointing to network folders
Support resolving network paths in the NT namespace
[...]
Keywords: free backup software, synchronize folders, synchronize files

v9.0 [04-18-17]

Support synchronization via FTP (File Transfer Protocol) and FTPS (SSL/TLS)
Notify failure to set modification time as a warning instead of an error
Allow intermediate non-folder components when checking path status
[...]
Keywords: free backup software, synchronize folders, synchronize files

v8.10 [03-15-17]

Fully preserve case-sensitive file paths (Windows, macOS)
Support SFTP connections to local hosts
Warn if versioning folder is contained in a base folder
Use natural string sorting algorithm for item lists
[...]
Keywords: free backup software, synchronize folders, synchronize files

v8.9 [02-09-17]

Detect when database file was copied and avoid 'second part missing' error
Further reduced size of database files by 20%
Reduced amortized number of file operations during versioning
[...]
Keywords: free backup software, synchronize folders, synchronize files

v8.8 [01-09-17]

Distinguish file access failure from not existing during sync
Further optimized number of file I/O operations via file system abstraction
Report unexpected prompts for keyboard-interactive SFTP authentication
[...]
Keywords: free backup software, synchronize folders, synchronize files

v8.7 [12-07-16]

New auto-updater feature for FreeFileSync Donation Edition
Download zip archive of portable FreeFileSync Donation Edition
New command line options to define parameters for silent installation
[...]
Keywords: free backup software, synchronize folders, synchronize files

v8.6 [10-26-16]

Added SFTP support for OS X
Support SFTP authentication via public/private key
Remember configuration history scroll position
SFTP folder picker supports browsing hidden folders
[...]
Keywords: free backup software, synchronize folders, synchronize files

v8.5 [09-17-16]

Support multiple SSH connections per SFTP folder traversal: N times speed up
Support multiple SFTP channels per SSH connection: additional N times speed up
Fixed installer crashes by using correct DEP-compatibility
[...]
Keywords: free backup software, synchronize folders, synchronize files

v8.4 [08-12-16]

Mark temporary copies created by %local_path% read-only
Fixed crash when accessing Bitvise SFTP Servers
Support nanosecond-precision file time copying (Linux)
Start maximized instead of in full screen mode (OS X)
[...]
Keywords: free backup software, synchronize folders, synchronize files

v8.3 [07-11-16]

Make temporary local copy for non-native file paths: %local_path%
Support selections from both grid sides at a time for external applications
New external application macros: %item_path%, %folder_path%, %item_path2%, [...]
Keywords: free backup software, synchronize folders, synchronize files

v8.2 [06-03-16]

Unified item path representation on main grid
New progress indicator control for binary comparison
Fixed crash on exit when accessing already destructed constant
[...]
Keywords: free backup software, synchronize folders, synchronize files

v8.1 [04-22-16]

Follow shell links during drag and drop on main dialog (Windows)
Significantly improved main grid rendering performance
Log info about non-default global settings
[...]
Keywords: free backup software, synchronize folders, synchronize files

v8.0 [03-17-16]

Fine-tuned buffer sizes for 70% improved SFTP stream I/O speed
Support incomplete read/write operations while maximizing buffer saturation
Automatically check consistency of FreeFileSync installation
[...]
Keywords: free backup software, synchronize folders, synchronize files

v7.9 [02-15-16]

New comparison variant: compare by file size
Buffer SFTP read/write accesses for optimal packet sizes
Configure folder access time out via GlobalSettings.xml
Drag and drop config files anywhere on main dialog
[...]
Keywords: free backup software, synchronize folders, synchronize files

v7.8 [01-02-16]

Correctly resolve environment variables containing MTP paths
Support at and colon characters in SFTP user name
New context buttons for quick sync config changes
[...]
Keywords: free backup software, synchronize folders, synchronize files

v7.7 [12-02-15]

Support variable drive letters for config history when using FreeFileSync portable
Skip non-storage functional objects at MTP device level
Log and show error messages without hanging when running as a service
[...]
Keywords: free backup software, synchronize folders, synchronize files

v7.6 [11-03-15]

Create missing synchronization base folders only on demand
Improved main grid text search performance by 40%
Restore correct main dialog height after restart (Linux)
[...]
Keywords: free backup software, synchronize folders, synchronize files

v7.5 [10-02-15]

Detect moved files on source even for targets with no (SFTP) or unstable (FAT) file id support
Improved performance for detection of moved files by over 50%
Added folder picker to select SFTP paths
[...]
Keywords: free backup software, synchronize folders, synchronize files

v7.4 [09-03-15]

Switch between all folder pair configurations directly in the sync config dialog
Support macros, path by volume name for config files on command line
Support slash as path separator on command line (Windows)
[...]
Keywords: free backup software, synchronize folders, synchronize files

v7.3 [08-03-15]

New context menu option to copy selected files to alternate folder (create diffs)
Fill a folder pair by dropping two folders at a time from Explorer
Added option to set non-standard SFTP port
[...]
Keywords: free backup software, synchronize folders, synchronize files

v7.2 [07-03-15]

Support synchronization with SFTP (SSH File Transfer Protocol)
Detailed error reporting when checking folder existence
Synchronize MTP devices with no modification time support
Set focus to comparison button on startup
[...]
Keywords: free backup software, synchronize folders, synchronize files

v7.1 [06-08-15]

Avoid various access denied errors when synchronizing with admin rights (Windows)
Accept Explorer drag and drop from MTP device
Support showing MTP files with Explorer
Support opening MTP files with default application
[...]
Keywords: free backup software, synchronize folders, synchronize files

v7.0 [05-12-15]

Support synchronization with MTP devices (Android, iPhone, tablet, digital camera)
Implemented file system abstraction layer
New database format supporting generic file ids
[...]
Keywords: free backup software, synchronize folders, synchronize files

v6.15 [04-09-15]

Revert to log file naming convention without colon character
Prevent endless recursion when traversing into folder on corrupt file system
Fixed view filter button rendering issue for RTL languages
[...]
Keywords: free backup software, synchronize folders, synchronize files

v6.14 [02-12-15]

New buttons allow changing the order of folder pairs
New keyboard shortcuts for rearranging folder pairs
Preserve comparison results when deleting a specific folder pair
[...]
Keywords: free backup software, synchronize folders, synchronize files

v6.13 [01-12-15]

Fixed crash when failing to create log file during batch run
Show directory traversal errors as conflict category on grid
Improved file filter behavior for certain edge cases when updating the database
[...]
Keywords: free backup software, synchronize folders, synchronize files

v6.12 [12-02-14]

New 'Actions' menu bar entry with basic operations
Fixed crash after comparison while needlessly copying traveral results
Support auto-updater URL redirection (Linux, OS X)
Merged installer translations into .lng files
[...]
Keywords: free backup software, synchronize folders, synchronize files

v6.11 [11-04-14]

Updated Recycle Bin access for Windows 10
New command line option '-edit' to load configuration without executing
New Explorer context menu options for ffs_gui, ffs_batch files
[...]
Keywords: backup software, synchronize folders, synchronize files

v6.10 [10-03-14]

Fixed crash when accessing recycle bin in compatibility mode (Windows 7, 8)
Draw middle grid selection irrespective of focus column
Don't show parts of progress graph if nothing to sync
[...]
Keywords: backup software, synchronize folders, synchronize files

v6.9 [09-03-14]

Reuse FreeFileSync taskbar link when available (Windows 7)
Limit number of retries when creating temporary files
Fixed bitmap rendering issue for high-contrast color schemes
Revised and fixed unclear GUI texts
[...]
Keywords: backup software, synchronize folders, synchronize files

v6.8 [08-04-14]

New comparison option to ignore file time shift in hours
Tentatively disabled DST hack affecting FAT file creation times
New menu option to reset gui layout
File sizes ignore sync direction in overview panel
[...]
Keywords: backup software, synchronize folders, synchronize files

v6.7 [07-01-14]

Redesigned comparison progress statistics
Fixed crash when loading incompatible config file
Added new button to config panel
Avoid sync progress dialog repositioning
[...]
Keywords: backup software, synchronize folders, synchronize files

v6.6 [06-02-14]

Fixed large font size standard button layout
Fixed config dialog graphics glitch with large font sizes
Exit FreeFileSync launcher process during update
Exclude temporary files from RealtimeSync monitor
[...]
Keywords: backup software, synchronize folders, synchronize files

v6.5 [05-02-14]

Support preview for RAW CR2 image files (Windows Vista and later)
Fixed startup exception when using task scheduler (Windows XP)
Correctly resolve SystemRoot NT path syntax for symbolic links
[...]
Keywords: backup software, synchronize folders, synchronize files

v6.4 [04-02-14]

Combined comparison, filter and sync config dialogs
Support alternate GlobalSettings.xml file via command line
Toggle between config panels with F6, F7, F8
Show config status icons in notebook panel caption
[...]
Keywords: backup software, synchronize folders, synchronize files

v6.3 [03-03-14]

No wait time anymore while searching for recycle bin (Windows Vista and later)
Revised synchronization progress graph
Clean up 'On completion' considering last usage
Fixed CTRL + C keyboard short cut in filter dialog (OS X)
[...]
Keywords: backup software, synchronize folders, synchronize files

v6.2 [02-04-14]

New synchronization progress graph
Skip binary comparison for files excluded via time span or size
Fixed configuration panel ordering for entries starting with numbers
[...]
Keywords: backup software, synchronize folders, synchronize files

v6.1 [01-02-14]

Released RealtimeSync for OS X
Handle errors loading reference batch config
Disable user mode exception swallowing for Windows 7 SP1
Always exclude root nodes on manual selection when excluded items are hidden
[...]
Keywords: backup software, synchronize folders, synchronize files

v6.0 [12-10-13]

Revised main dialog panel layout
Show arrow icon for shortcut files and symlinks
Execute the "on completion" command asynchronously
Resolved invalid grid background when context menu is shown
[...]
Keywords: backup software, synchronize folders, synchronize files

v5.23 [11-01-13]

Allow sorting root nodes on overview panel
Support retry on failure to resolve path by volume name
Copy high-precision modification times for files and symlinks
Align top panel height with comparison and sync buttons
[...]
Keywords: synchronize folders, synchronize files

v5.22 [10-01-13]

New options for automatic retry after error
Improved compliance with Windows User Experience guidelines
Harmonized popup dialog layouts
Correctly show program menu when main dialog receives focus (OS X)
[...]
Keywords: synchronize folders, synchronize files

v5.21 [09-01-13]

Detect moved/renamed files in mirror and custom variants
New database format for two way variant: old database files are converted automatically
Support double-clicking ffs_gui/ffs_batch files (OS X)
[...]
Keywords: synchronize folders, synchronize files

v5.20 [08-03-13]

Fixed crash on startup due to wxWigets 64-bit bug in font enumeration (Windows 8)
Redesigned progress dialog including new items graph
New command line syntax: set directory names of a .ffs_gui/.ffs_batch externally
[...]
Keywords: synchronize folders, synchronize files

v5.19 [08-02-13]

Redesigned progress dialog including new items graph
New command line syntax: set directory names of a .ffs_gui/.ffs_batch externally
Explicit button on progress dialog to minimize to systray
[...]
Keywords: synchronize folders, synchronize files

v5.18 [07-03-13]

Consider target file when updating followed file symlinks
Support moving files to recycle bin contained in followed directory symlinks
Move instead of copy updated files into versioning directory
[...]
Keywords: synchronize folders, synchronize files

v5.17 [07-02-13]

Consider target file when updating followed file symlinks
Support moving files to recycle bin contained in followed directory symlinks
Move instead of copy updated files into versioning directory
[...]
Keywords: synchronize folders, synchronize files

v5.16 [06-01-13]

Integrated both category and sync action view into middle grid
Condensed folder pair display names on overview panel
Consider symlinks and junctions when copying locked files (Windows Vista)
[...]
Keywords: synchronize folders, synchronize files

v5.15 [05-01-13]

New menu option to activate/deactivate automatic update checking
Show status message while checking for program updates
Faster startup times through asynchronous config file checking
Automatically migrate configuration files to new format
[...]
Keywords: synchronize folders, synchronize files

v5.14 [03-31-13]

Do not process child elements when parent directory creation fails
Start comparison after pressing Enter in directory input fields
Lead grid is determined via keyboard input instead of input focus change
[...]
Keywords: synchronize folders, synchronize files

v5.13 [03-06-13]

Prepared support for new build on Mac OS X
Time out for not existing directories after 10 seconds
Check directory existence in parallel
Inform about all missing directories via a single error message
[...]
Keywords: synchronize folders, synchronize files

v5.12 [02-05-13]

Dynamic statistics adjustment during synchronization
Allow to save active view filter settings as default (context menu)
Stay responsive while checking recycle bin existence on slow disks
[...]
Keywords: synchronize folders, synchronize files

v5.11 [01-06-13]

New file versioning scheme: move to folder replacing existing files
Fixed high CPU consumption after longer syncs
Improved .ffs_batch configuration file handling
Allow to quick save .ffs_batch files on main dialog and program exit
[...]
Keywords: synchronize folders, synchronize files

v5.10 [12-01-12]

Show synchronization log as a grid in results dialog
Improved grid scrolling performance (most noticeable on Linux)
Allow grid selection starting from outside of the grid
[...]
Keywords: synchronize folders, synchronize files

v5.9 [11-03-12]

Scroll grid under mouse cursor
Move files directly to recycle bin without "FFS 2012-05-15 131513" temporary folders
Offer $HOME directory alias in directory dropdown list (Linux)
Support for tilde (~) character in input folder paths (Linux)
[...]
Keywords: synchronize folders, synchronize files

v5.8 [10-01-12]

New icon theme
Dynamic save button and dialog title show unsaved configuration
Exclude all folders if file size or time span filters are active
Added macros %csidl_Nethood%, %csidl_Programs%, %csidl_Startup%
[...]
Keywords: synchronize folders, synchronize files

v5.7 [09-04-12]

Modern directory selection dialog (Windows Vista and later)
New file versioning scheme appending revision number to files
New sync option to limit number of versions per file
[...]
Keywords: synchronize folders, synchronize files

v5.6 [08-02-12]

Major Update

v5.5 [07-01-12]

Major Update

v5.4 [06-01-12]

Major Update

v5.3 [05-02-12]

Major Update

v5.2 [04-21-12]

Major Update

v5.0 [03-04-12]

Major Update

v3.13 [03-01-11]

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Predicted future versions and notices:

The doDownload.com constantly monitors the update of all programs, including information from the FreeFileSync 10.3 changelog file, however sometimes it can happen that data are not complete or are outdated.We assume that author continue's to develop 10.4 version with further advanced features, and soon you will be informed. Equally important 11.0 upgrades of the program we will continue to monitor. Full FreeFileSync description has been compared with the overall software database and our algorithm has found the following applications (are showed below).