Feature List

Pro Edition features are marked

General Features
- Responsive, multi-threaded interface
- Multiple windows with tabs for each comparison
- Integrated into Explorer (Windows), Finder (macOS), and various Linux shells
- Save comparisons as sessions to easily load them later
- Automatically save sessions when closing them
- Save workspaces containing all open windows and sessions
- Home view with easy access to viewers and saved sessions
- View Unix patch files as a side-by-side comparison
- Text editor
- Script processor for automating tasks
- Command line interface
- Supports high DPI (retina) displays
- Automatic check for updates
- Drag & drop to start comparisons
- Customizable fonts, colors, and keyboard shortcuts
- Extensive context-sensitive help
- Dedicated support staff available via email, phone, and forums.
Compare files
- Side-by-side display
- Color highlighting of differences within lines
- Display filters to show only differences
- Jump to next/previous difference within file or folder
- Printed and HTML comparison reports
- Unicode and MBCS support
- Thumbnail overview of comparison
- Can convert files before comparing them
- Compare files or clipboard contents
- Automatic backups when saving
Text Compare
- Inline editing with dynamic recomparison
- Syntax highlighting
  - C, C++, C#, Objective-C
  - Java
  - SQL
  - Delphi, Pascal
  - Python
  - Visual Basic
  - XML
  - Many more built in and available online
- Ignore unimportant differences
  - Comments
  - Whitespace
  - Delimited strings
  - Regular expressions
  - Character case
  - Page headers
  - Columns
  - Line terminator style
  - Manually ignore selection
- Ignore replaced text and renamed identifiers
- Flexible alignment
  - Aligns similar lines
  - Multiple alignment styles
  - Optionally suppress alignment of differences
  - Manually align changes or break alignments
- 3-way merge with output panel
  - Merges changes automatically
  - Marks conflicting sections
  - Take whole difference sections or selections
- Find & replace
- Microsoft Word, Adobe PDF, and Rich Text converted to text automatically
- Adaptive gutter buttons for copying sections
- Formatted HTML view
- View Delphi binary form files as text
- Line details as text, hex, or with character alignment
- Compare files with different formats
- Bookmarks
Table Compare
- Grid view
- Inline editing with dynamic recomparison
- Compare CSV, tab delimited, HTML tables, and Excel worksheets
- Ignore differences within numeric or date tolerances
- Ignore or hide unimportant columns
- Align based on key columns or all columns
- Rearrange columns to compare files in different orders
- Sort data before comparing
Binary Compare
- Display binary files as hex
- Inline editing with dynamic recomparison
- Fast byte-by-byte alignment
- Limit display to differences
- Wrap lines to display
- Find & Replace
Registry Compare
- Local and remote registry hives
- Registry exports (.reg)
- Inline editing
- Recursively expand keys in-place
Picture Compare
- Many picture formats
- Flip, rotate, and scale images
- Multiple comparison types
- Thumbnail of pixels around the mouse cursor
- Ignore differences within an RGB tolerance
- Ignore replaced colors
- Zoom to show entire image automatically
Other Comparisons
- Compare .exe version information
- Compare MP3 tags
- Can use third-party comparison utilities for unsupported files
Compare Folders
- Compare folders side-by-side
- Color highlighting of differences
- Automatically compare subfolders and expand them in place
- Display filters to show added, modified, or matching files and folders
- Flexible comparison criteria
  - Last modified time
  - Size
  - Filename case
  - DOS attributes
  - File content (CRC32, byte-byte-byte, file format specific, or exe/dll versions)
  - Ignore selection
- Exclusion filters
  - File and folder names
  - Sizes
  - Last modified times
  - File content
  - DOS and Unix attributes
- Dedicated synchronization commands
- Powerful file operations
  - Copy, Move, Delete, Rename, Change Attributes, Set Last Modified Time
  - Multiple operations can run in the background
  - Pause running operations
- 3-way folder merge
  - Merge to a separate output location or overwrite one of the inputs
  - Automatically merge text files
- Ignore folder structure
- Printed and HTML comparison reports
  - Link an HTML folder comparison report to individual file comparison reports
- Optionally follow symbolic links and NTFS junction points
- Align filenames with different extensions
- Align filenames using wildcard masks (e.g., "Apples*" => "Bananas*")
- Align filenames with different Unicode normalization forms (macOS vs Windows)
- Copy NTFS ACLs and DOS short (8.3) filename aliases
Virtual File System
- Local and network drives
- Remote SMB servers (\\server)
- FTP servers
  - Named profiles
  - Multiple simultaneous connections
  - Resume interrupted transfers
- Secure FTP servers (FTP over SSL and SSH SFTP)
  - Password, private key, keyboard interactive, or SSH agent authentication
- Cloud storage
  - WebDAV
  - Amazon S3
  - Dropbox (team folders not supported)
  - OneDrive
- Remote Subversion repositories
- Portable media devices (Android phones, MP3 players, cameras)
Archive Files
- Compare and modify without extracting to a temporary location
- Compare as a file or expand as a folder
- Create, read, and modify
  - 7-zip
  - Zip
  - Zipx, with read-only support for Bzip2, PPMd, LZMA, WavPack, and JPEG compression
  - Tar
  - Gzip
  - Bzip2
- Read only
  - Deb
  - Rpm
  - Rar
  - Disk images (.img, .iso)
  - Microsoft Cab
  - Compiled Help (.chm)
  - Total Commander packer plugins
  - Many more
- Save filesystem snapshots without content
Version Control
- Launch comparisons from all major version control systems
- Checkin/checkout files via MSSCCI provider
- Compares Subversion repositories