Portable Free Apps : Use it And Enjoy it

Scintilla is a free source code editing component. And it’s powerful, support multi-tab.

As well as features found in standard text editing components, Scintilla includes features especially useful when editing and debugging source code. These include support for syntax styling, error indicators, code completion and call tips. The selection margin can contain markers like those used in debuggers to indicate breakpoints and the current line. Styling choices are more open than with many editors, allowing the use of proportional fonts, bold and italics, multiple foreground and background colours and multiple fonts.

Scintilla also support many language scripts: HTML, C/C++, Java, PHP, Perl, Ruby, Ada, SQL, Shell…

Notepad++ is a free (as in “free speech” and also as in “free beer”) source code editor and Notepad replacement that supports several languages. Running in the MS Windows environment, its use is governed by GPL Licence.

MadEdit can edit files in Text/Column/Hex modes, and supports many useful functions, e.g. SyntaxHighlightings, WordWrap, Encodings.

Features:
* MadEdit can run under Linux, FreeBSD and MS-Windows platforms.
* Edits files in Text, Column and Hex modes.
* In Hex-Mode, MadEdit can open large files which size is up to 32GB (INT_MAX*16).
* Users can change the encoding of files at runtime like Web-Browsers.
* Supports many encodings, e.g. Unicode(UTF-8, UTF-16/32 with Little or Big Endian), Big5, GBK and S-JIS etc.
* Supports Unicode CJK Ext-B.
* If users input a character that is not supported by current encoding, this character will be converted to U+XXXX. Unicode format.
* Regular Expression search & replace (by using Boost.Xpressive).
* Opens multiple files on single instance.
* Supports syntax-highlighting of many programming languages, e.g. awk, C/C++, CSS, diff/patch, D, DOS Batch Script, Flash ActionScript, HTML, Java, JavaScript, JSP, Lua, Pascal, PHP, Perl, Python, Ruby, UNIX Shell Script, x86 Assembly, XML, Fortran, TeX/LaTeX, Squirrel, C#, Visual Basic, ASP(VBScript), SQL, Verilog, VHDL.
* MadEdit can view ASCII-Art files under Win32 platform.

Emacs is a powerful text editor, and Emacs is often called a “programmer’s editor”.

The GNU Emacs Manual calls Emacs the extensible, customizable, self-documenting real-time display editor, but this description tells beginners little about what Emacs is capable of.

If you are tired of Windows notepad, you can try Notepad2. Yes, Notepad2. Notepad2 is a fast and light-weight Notepad-like text editor with syntax highlighting. This program can be run out of the box without installation, and does not touch your system’s registry.