UltraCompare Professional is a System Utilities software developed by IDM Computer Solutions, Inc.. After our trial and test, the software was found to be official, secure and free. Here is the official description for UltraCompare Professional: Powerful Compare/Merge for Text/Binary Files & Folders Drag/drop of folders/files to be compared or direct entry. Includes FTP/SFTP Support. File Compare Features: Line-by-line comparison of files/pasted snippets. Fast/Smart Binary Compare. Text compare mode includes options to ignore blank lines, whitespace, or case. Drag/drop of files to be compared or direct entry. Difference Summary includes: Number of lines/blocks different. 2-way/3-way File Compare Folder Compare Features: Single/Recursive Folder Compare. Filter file type(s) to be displayed in Folder compare Drag/drop of folders to be compared or direct entry. Difference Summary includes: file size, creation date, format, content. 2-way/3-way Folder Compare Preview pane to display text of differenced files Supports .zip/.rar/.jar archive vs. folder compare Flexible Configuration options: User Profiles for all compare modes Configurable key mapping Configurable toolbars Command Line options: Text Compare Mode. Fast Binary Compare mode. Smart Binary Compare mode. Ignore case in Text Compare mode. Ignore spaces in Text Compare mode. Ignore Blank Lines in Text Compare mode. Ignore line terminators in Text Compare mode. Compare files and specify output file. Folder Compare Mode. Compare folders recursively in Folder Compare mode. Force all files to be compared as text in Folder Compare mode. Force all files to be compared as binary in Folder Compare mode. Compare folders and specify output file. Show active file in integrated browser. Includes indexed HTML Help. Runs as standalone product or from within UltraEdit/UEStudio. you can download UltraCompare Professional free now.