SoftCircuits Programming
Cygnus Hex Editor

Cygnus Overview

Fast and Easy to Use

Finding Data

Modifying Data

Analyzing Data

Sharing Data

Cygnus Extensions

Feature List




Try Cygnus

Why not download Cygnus and try it for yourself? It costs absolutely nothing so there is no risk.




If you determine that Cygnus is for you, then you can register your copy.




If you've decided Cygnus is for you, you can register the product for only $39.00.



Note: We strongly urge you to download the software first. Try it out. When you register, we'll send you a key to fully activate your copy.


Feature List

The table below provides a comprehensive list of features in our Cygnus Hex Editor. It also provides easy comparison of feature differences between the latest version of Cygnus and Cygnus FREE EDITION.


Feature Cygnus FREE EDITION Cygnus 2.50
Cost FREE $39.00
Versions of Windows supported Windows 95, 98, ME, NT 3.5, and later Windows NT 4.0, 2000, 2003, XP and later
Edit files up to available virtual memory (up to 2GB)
Blazingly fast searching
Fast, easy operation; delete or insert characters as easily as with any word processor
Extensive on-line help
Ability to print all or any portion of a file; Print Preview command
Multiple document interface (MDI) allows side-by-side editing; multiple views on the same file
Extensive drag and drop support
Multi-level undo and redo
Dockable and moveable toolbars
State and positions of main window and toolbars saved between sessions
Reload command
MDI window is tabbed to more easily view and select open files
Ability to customize default file-type list used by Open dialog boxes.
User Tools menu
Intelligent file comparing
File Compare command can list all differences found
Can edit multiple files by dropping them onto program icon
Enhanced Go To command supports relative jumps and manual data selection
Option to prevent multiple program instances
Option to add to Explorer Send-To menu
Option to paste in insert or overwrite mode; option to prompt each time data is pasted
Optimized for later versions of Windows; supports XP themes; strings stored internally as Unicode
Ability to save and load display settings
Numerous options for controlling how data is displayed
Enhanced Find and Replace commands
Support for plug-in extensions
Checksum command
Convert command
Copy As, Copy to File, Paste As and Paste from File commands
Import and Export commands
Modify, Insert and Delete commands
Support for bookmarks
Data Inspector window with Data View and Structure View tabs




Online Help Issues on Windows Vista

Cygnus Hex Editor runs great on the Vista Windows operating system. However, the portion of Windows used by this program to display online help is no longer included with Windows Vista. We are working to upgrade the help system but it will not be immediate.


In order to access help under Windows Vista with the existing software, you may download the help system used by this program from Microsoft at no charge. You will want to download Windows6.0-KB917607-x86.msu. The other version (Windows6.0-KB917607-x64.msu) is for 64-bit Windows.



Our Cygnus Hex Editor is sold as shareware. Shareware can be evaluated for free and without risk. We strongly recommend that you first download the software and install it on your computer. Take it for a test drive and see if it performs to your satisfaction. If you like the software, you can register (purchase) it. When you do, we'll send you a registration key that you enter into the program to fully activate the software. Because the software will already be on your computer, this method is fast, easy, and avoids all shipping and media charges. And because you'll have already used the program, you'll know exactly what you're buying.


Buying Cygnus

Registration for Cygnus is only $39.00 (USD). SoftCircuits offers many different payment methods. Site licenses are available.




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Want More Information?

Check out our feature list. Have questions? Email us at or check out other ways to contact us.