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Welcome to Compare It!
About Compare It!
Installing and Removing Compare It!
What's New in This release?
Quick Start
User Interface Basics
Application Window Illustration
Using Compare It!
Comparing files
Merging Files
Editing Files
Setting Options
File Filters
Advanced Comparison
Printing and Reporting
Print options
Print Options: Margins
Print Options: Advanced
Comparison report
Comparison statistics
Keyboard Shortcuts, Toolbar Buttons, Menu Commands
Advanced Functions
Adding Shortcuts to External Applications
Adaptive comparison
Auto Backup
Automatch rules
Command Line Usage
Configuration File
Changes Only Mode
Custom Syntax Files
Defining Column Ranges
Enhanced Open File
File lists support
Folders comparison
Ignore Difference
Manual Matching
Merged Report
Moved Sections
Partial matching
Result File Support
Unicode Support
Using Compare It! with File Manager
Using fixed/alternative font
Using Regular Expressions
Using RegExps substrings
Word files comparison
Excel files comparison
Other file formats support
Zip File Support
General Information
What is Shareware?
How To Register
Warranty and License
Future Releases
Other Products
Frequently Asked Questions
Updates and Support
Editing Files

Internal Editor

Compare It!'s internal editor has most standard editing functions, so you will find it very easy to understand. To understand how Compare It! shows source and target file content in the panes, please review the Virtual Lines topic.

Syntax Coloring

To simplify working with source code files, Compare It! supports syntax highlighting. Currently only C++, C#, Java, Delphi and HTML languages are supported internally. To extend this list, you can use custom syntax files. To disable syntax highlighting, choose Options > Enable Syntax, or press F11.

Word Wrapping

You can switch word wrapping mode by choosing View > Wordwrap, or by pressing CTRL + W.

View Whitespaces

In order to see changes in whitespaces, such as blanks and tabs, you can enable display of these characters. Choose View > View whitespaces to switch to this mode.

Bookmark icon Bookmarks

You can use bookmarks to store the current cursor position to return to that position later on. Bookmarks are shown in the user interface as blue rectangles, shown above.

To set a bookmark:

  1. Position your cursor in the line where you want to add the bookmark.
  2. Press CTRL + F2.

To remove a bookmark:

  1. Position your cursor in the bookmarked line.
  2. Press CTRL + F2.

To jump to the next bookmark:

  • Press F2.


Use CTRL + F3 to search for the word at the current cursor position, F3 to search for the next occurrence and SHIFT + F3 to find the previous occurrence. You can also press CTRL + F to change search options, such as specifying of word limits and case-sensitivity during search.


Compare It! also supports a replace function. Use CTRL + R to open the Replace dialog.

Regular expressions

You can use regular expressions in both Search and Replace functions.


The editor fully supports all clipboard operations, so you can use the standard key combinations to copy, paste, and cut text fragments.

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