Key text editing features

Code Folding
Supports 64-bit file handling (standard) on all 32-bit Windows platforms
Unicode support
Disk based text editing and large file handling - supports files in excess of 4GB, minimum RAM used even for multi-megabyte files
Mulitline find and replace dialogs for all searches (Find, Replace, Find in Files, Replace in Files)
100,000 word spell checker, with foreign languages support (American English, British English, Dutch, Finnish, French, German, Hungarian, Italian, Spanish and Swedish)
Syntax highlighting - configurable, pre-configured for C/C++, VB, HTML, Java, and Perl, with special options for FORTRAN and LaTex. Multiple wordfiles available for download
FTP client built in to give access to FTP servers with multiple account settings and automatic logon and save. (32-Bit Only) Includes support for SFTP (SSH2)
SSH/Telnet window
Project/workspace support
Environment Selector - Provides predefined or user-created editing "environments" that remember the state of all of UltraEdit's dockable windows, toolbars and more for user convenience.
Integrated scripting language to automate tasks
Configurable keyboard mapping
Column/block mode editing
Hexadecimal editor allows editing of any binary file, shows binary and ASCII view
Named templates
HTML toolbar preconfigured for popular HTML functions
WebSearch Toolbar: highlight text and click a websearch toolbar button to search for highlighted term from within the editor Google search
Yahoo search
Wikipedia
Dictionary.com
Thesaurus.com
Whois
Network Solutions Whois
PHP.net search
cplusplus.com search
MSDN online search
File encryption / decryption
Encrypt your sensitive source code files using your own key
Integrates with UltraSentry to (optionally) securely destroy original, unencrypted file
Decrypt files in UltraEdit only
Integration with UltraSentry to securely delete UltraEdit temporary files
Multi-byte support with integrated IME support