• Large file support for comparison of files several GB large
  • (Note: UltraCompare does include a memory threshold limitation so as not to consume all of the free RAM on your system. This threshold is based upon a variety of factors but ultimately is determined by the amount of memory required to complete the compare versus the amount of free memory on your system.)
• Powerful three way text file compare
• Ability to edit text lines and merge within UltraCompare
  • Changes can either be saved or merged to other file
  • Changed lines are highlighted until they are saved
• Download webpage or web file for text compare by typing its URL into the file address bar
• Manually re-sync two lines and begin the compare from those chosen lines
• Highlight differences by:
  • character
  • word
  • line
• Ignore options:
  • Ignore case
  • Ignore whitespace
  • Ignore blank lines
  • Line terminator differences
  • Lines which begin with, contain, or end with <string>
  • All text between <string1> and <string2>
  • A defined number of lines at the beginning or end of file
• Copy/paste multiple selected contiguous lines to clipboard
• Copy compare frame to clipboard
• Ability to compare whitespace differences between text files (tabs and spaces)
• Inline editing of text files
• Full Unicode support
  • Load files with Unicode file paths/names
  • Display and diff Unicode/UTF-8 data
• Configurable logical line matching – adjust how many lines UltraCompare will scan to try to match up similar blocks of text
• Set tab value to a specific number of spaces (like UltraEdit/UEStudio)
• Compare column ranges of data
  • Set column range(s) to be compared or ignored
• Ability to compare text snippets, including ability to:
  • Paste text into blank compare frames
  • Clear compare frames (temp files are automatically deleted)
  • Merge and save compare results as a separate file
• Bookmark support
• Word wrap support
• Edit files directly in compare frames
• Differences map (scaled or scrollable) to quickly see differences locations
• Line-by-line compare of individual text files
• Relational lines mode – draws lines between compare frames showing which blocks of text match up between files
• Active line window shows active lines from both files with option to edit
• Status bar shows number of lines/blocks with differences
• Dockable “Legend & Filters” pane provides quick reference to compare symbols and colors, plus quick access to compare filters
• Display line number and column number in the status bar
• Compare difference summary includes:
  • data in source but not in destination file (or vice versa)
  • character differences between files on the same line
• Launch folder compare or text compare from command line
• EBCDIC compare supported
• Double-byte compare supported

Folder compare features

• Compare two or three folders
• Threaded compare engine for quick handling of large directories
• Intuitive tree-style view
  • Includes open/close nodes for subdirectories
  • Double-click a compared file or folder to launch a new compare in a new session
• Mark and hide or unhide files and folders
• Set filter to specify file types to be displayed during folder compare
• Compare remote (FTP/SFTP/FTPS) folder to local or remote folder
• CRC support for FTP compares (avoid downloading files to compare them)
• Folder synchronization (check “Sync folders” option at bottom of compare)
  • Quickly sync different files between two folders (including subfolders)
  • Use pre-defined, customizable sync rules for determining how to handle differences
  • Create your own sync rules
  • Sync local, networked/shared, and remote/FTP files
  • Adjust sync actions for individual files as needed
  • Review sync actions before executing synchronization
  • Organize folder syncs in “Folder Synchronization” sessions
• Compressed archive compare
  • ZIP archive compare (including password support)
  • RAR archive compare
  • Java JAR archive compare
  • separate unrar package installation may be required
• Side-by-side directory compare view
• Switch comparison method on the fly (basic, full, or smart [includes text compare])
• Dockable preview pane to preview text content of files
• Dockable “Legend & Filters” pane provides quick reference to compare symbols and colors, plus quick access to compare filters
• Compare files based on time, date, or size
• Optionally ignore user-specified directories and file types
• Optionally ignore file timestamp differences
• Full Unicode support – compare folders from Unicode paths
• Ability to customize display of file date/time format in folder compare
• Set a NOT operator for filter (i.e., NOT *.bak, etc.)
• Provide live update on progress (useful when working with large nested directory trees)
• Favorite files and folders allow quick access to commonly used compare items
• Explore source or destination directory by right clicking in folder compare mode
• Compare individual directories
• Recursive compare of directories (includes subdirectories)
• Difference summary includes:
  • same named files with different sizes
  • same named files with different creation dates/times
  • file type: binary or ASCII
  • option to automatically display immediately following directory compare
• Select files with different names in folder compare mode and compare them
• Right-click on column headings and select fields

Table / Excel compare features

• Compare CSV, TSV, or any other tabular formatted data in grid view (columns / rows)
• Optionally define field separator character
• Optionally use row 1 as column headers
• Ignore columns, rows, or cells containing a certain string
• View only matching columns/rows, or only different columns/rows
• Merge cells, rows, and columns, and save result
• Excel (XLS/XLSX) compare (requires MS Excel 2007 or later)
  • See differences in spreadsheets
  • Multi-sheet support with sheet selector

Word/PDF compare features

• Compare Microsoft Word documents
• Compare DOC and DOCX files (.docx requires MS Word 2007 or later)
• Compare text of PDF files (images and non-text data are ignored)
• Compare RTF files

Binary compare features

• Two binary compare modes:
  • Fast mode compares byte-to-byte (by position)
  • Smart mode aligns matching byte sequences in both files, even if offset by a differing number of bytes
• Compared files’ bytes displayed side-by-side in hex format
• Hex address shown in left column
• ASCII representation of bytes shown in right column
• View matching or differing bytes only
• Option to display decimal offset rather than hexadecimal

Merge features

• Merge support for text, folder, and table modes (special merge support for Git)
• Undo merge
• Merge compared lines or blocks between files for two and three way text compare
• Merge compared files between directories for two and three way folder compare
• Selected line merge capability
• Accept all (or merge all) button for text mode, and folder mode
• Word-level (or selection-level) replacement and insertion
• Mark merged lines for review
• Enhanced merging – allows changes to be added to changes in other file
• Merge contents of compared directories
• Automatically move to the first difference when loading
• Automatically move to next difference after merge

Print / output features

• Save text, binary, folder, or table compare result as HTML file (HTML representation of compare frames)
• Print compare results in color
• Ability to use UltraCompare in batch files to produce reports, side-by-side difference output
• Print right or left compared file from File menu
• Print compare difference summary showing matching lines or differences only
• Print and save differences in context
• Print and save differences of one file
• Print and save files side by side
• Print and save differences from binary compare
• User configurable report headers/footers
• Dockable output window with difference summary (cut/copy/paste output)

Display features

• Integrated IE browser support – display and compare HTML files as they would appear in the browser
• Show file in browser
• Syntax highlighting for source files
  • Theme-based comment, string, and keyword coloring
  • Automatically detects and uses existing UltraEdit / UEStudio wordfiles
  • Install additional wordfiles from website (or create your own)
  • Manually set or disable highlighting type per-frame
  • Configure settings under Settings » Display » Text » Syntax highlighting
  • See syntax highlighting in active line window
• Full theme support
  • Manage Themes dialog for creating and modifying themes:
    • Skin the entire application (dockable panes, menus, toolbars, file tabs, status bar, etc.)
    • Set compare colors and fonts for text, table, folder, and binary mode
  • Switch themes with a single click
  • Use one of several pre-defined themes or create your own
  • Import, export, and share your themes with others
• Choose between ribbon or toolbar / menu mode
  • Ribbon includes contextualized tabs for compare type
  • Select toolbars / menus for classic look and feel
  • Full customization support for ribbon, Quick Access Toolbar, and toolbars
• Synchronized horizontal scrolling
• Flip comparison frames
• Full ribbon and toolbar customization support

Miscellaneous features

• Drag and drop files / folders to compare frame from Windows File Explorer
• Automatic file change detection
• Version control support via extended command line options and file path aliasing
• Execution control to start, stop, or refresh a compare
• Tabbed sessions allow you to run multiple concurrent compares within one instance of the application
• Workspace Manager (“Explorer” tab)
  • Browse all system and network drives
  • Vertically split explorer
  • Drag-and-drop to compare frames
  • Optionally display, browse, and open files from FTP accounts in explorer tree
  • Filter files
• Workspace manager (“Session” tab)
  • Save, name, group, and organize compare sessions for quick access to frequently-used compares
  • Launch and execute sessions directly from session list
  • Set compare/ignore/other options for each session in new session properties dialog
  • Recent sessions option provides quick access to sessions from your last UltraCompare session
• Find Duplicates
  • Quickly locate duplicate files between two or more folders (including subfolders)
  • Specify criteria for what constitutes a duplicate file (name, size, date, and/or content)
  • Set ignore options for system files, hidden files, recycle bin, etc.
  • Set include / exclude filters to optionally include and exclude files/folders
  • Search for duplicates in local, network / shared, and remote / FTP files
  • Browse list of found duplicates and specify which to keep and which to delete
• Set UltraCompare to single instance
• Manual or automatic check for updates
• Configurable key mapping
• Set font for different compare modes
• Integration with UltraEdit
  • Launch compare from UltraEdit
  • Double-click file(s) in UltraCompare to open in UltraEdit
  • UltraEdit / UEStudio automatically detect and update merged changes

UltraCompare Lite features

• Support for line-by-line text compare of individual files
• Status bar shows number of lines/blocks different
• Compare difference summary includes:
  • data in source but not in destination file or vice versa
  • data difference between text files on the same line