For the purposes of this list, a portable application is software that can be used from portable storage devices such as USB flash drives, digital audio players, PDAs or external hard drives. To be considered for inclusion, an application must be executable on multiple computers from removable storage without installation, and without writing settings or data onto a computer's non-removable storage. This includes modified portable versions of non-portable applications.
Bundles
Ceedo
MojoPac
LiberKey
PortableApps.com
U3
WebLaminarTools
WinPenPack
Launchers
Appetizer (Dock application) ASuite Launchy OpenDisc RocketDock
Development
Scripting languages
Portable Python
Portable NSIS Version
Portable AutoIt
Portable AutoHotkey (zip file) Portable Perl (Strawberry Perl Portable Version)
Compilers
MinGW
Tiny C Compiler
IDEs
Alice IDE
Portable Eclipse
Portable Code::Blocks (needs MinGW installed, which is portable too) Portable Dev-C++ Hackety Hack, which is an educational version of Ruby SharpDevelop Portable
Setup creators
Nullsoft Scriptable Install System Portable (PortableApps.com format)
Visual mapping/productivity tools
XMIND
Graphics
3D modeling and rendering
Anim8or – Free 3D modeling and animating software. Blender: BlenderPortable Blender Pocket XBlender
Animation
Anim8or
Blender
Pivot Stickfigure Animator
Graphic editors
ArtRage
Artweaver
Dia
EVE
Fotografix
GIMP: GIMP Portable VS 2008 is the Gimp portable version of Gimp on Windows platforms (Windows XP, Vista, NT Server 2003, NT Server 2008) Portable Gimp – for Mac OS X X-Gimp X-GimpShop Inkscape: X-Inkscape Portable Inkscape – for Mac OS X IrfanView Pixia Tux Paint
Icon editors
@icon sushi
GIMP – Supports reading and writing Windows ICO files. IcoFX IrfanView – Supports converting graphic file formats into Windows ICO files.
Viewers
FastStone Image Viewer: supports screen capture, multiple pix into a single PDF
Irfanview
XnView
Document-based
Office and publishing
Abiword
AllMyNotes Organizer
Atlantis Word Processor
Jarte
LibreOffice
OpenOffice.org
Scribus
StarOffice
Editors
AkelPad
EmEditor Professional
Geany
Metapad
Notepad++
Notepad2
NoteTab Light
PSPad
Q10
SciTE
Sublime Text
TED Notepad
Textpad
UltraEdit
VEDIT
Vim
Personal notes
Personal Knowbase
Educational
Celestia
GCompris
Maxima
Stellarium
Calibre
Games
AssaultCube
Cave Story
Dwarf Fortress
Doom I / II
Frets on Fire
Kerbal Space Program
Minecraft
PokerTH
Quake
Secret Maryo Chronicles
Tile World
Warzone 2100
Xonotic
Emulators
DOSBox – MS-DOS emulator
FCE Ultra – Nintendo Entertainment System (NES) emulator
MAME – Multiple Arcade Machine emulator: MAMEUI32 VisualBoyAdvance – Game Boy, Game Boy Color, and Game Boy Advance emulator ZSNES – Super NES emulator
Plug-in emulators
JoyToKey – Gamepad emulator
Internet
Web browsers
Avant
Brave
Chromium
Falkon
Firefox Portable
Google Chrome Portable
Links
Maxthon Browser
Opera
Pale Moon
Pocket K-Meleon
Lynx
QtWeb
SeaMonkey
SlimBrowser
SRWare Iron Portable
Sleipnir
Waterfox
XeroBank Browser
Email clients
Mail – for Mac OS X
Mozilla Thunderbird Portable
Modest
Pegasus Mail
Pine
Opera (has integrated Email client) SeaMonkey sylpheed (zip version) The Bat! Voyager
Instant messaging
Adium – for Mac OS X
aMSN
Google Talk
Portable iChat – for Mac OS X
Miranda NG
Monal
Pidgin Portable (formerly Gaim Portable) Psi Portable Skype Trillian Anywhere Yahoo! Messenger
FTP clients
WinSCP
FileZilla
Portable Cyberduck
SmartFTP
FlashFXP
Download managers
Wget
HTTrack
Free Download Manager (installation required to create portable version) Opera (Integrated Download Manager)