Free portable USB software

KeePass Password Safe
This handy little program uses a master password to safeguard all your valuable login information. Once passwords have been stored, they can be dragged and dropped into text boxes to save having to retype them in future.

7-Zip Portable
No computer would be complete without a file-zipping utility. 7-Zip Portable is not only compatible with the ZIP format, but also RAR, ISO, CAB, ARJ and many more, so almost every compressing eventuality is catered for.

Firefox Portable
Tabbed browsing is still present, as is support for extensions, and being able to store Bookmarks on a USB drive makes it easy to access all your favourite websites from any computer with an internet connection. It’s not only portable but lightning fast too.

Portable GIMP
The GIMP has earned itself a deserved reputation as one of the best free image editors around. The portable edition of the program packs the same punch as the Desktop version, letting you work with a wide variety of image formats.

FileZilla Portable
This powerful tool can be used to access FTP servers from a USB drive, meaning you can upload files to your website from any computer. As login details can be stored within the program there is no need to battle with web interfaces or remember passwords.

KompoZer
KompoZer is a full-featured HTML editor, which can be used in WYSIWYG (What You See Is What You Get) or code mode. An integrated FTP client makes it easy to upload edited pages, while the tabbed interface makes light work of editing several files at the same time.

EssentialPIM Free Portable
EssentialPIM offers an address book, calendar, to-do list and can be configured to synchronise with Microsoft Outlook, Google Calendar and other tools. Colour coding and categorisation make it easy to keep all your important information organised in one location.

TrayURL
While the portable version of Firefox makes it possible to take your web browser wherever you go, TrayURL makes it easy to transport just your bookmarks. Bookmarked sites can be organised into categories and accessed from the System Tray.

Sumatra PDF Portable
Opening PDF files doesn’t necessarily mean having to install the hefty Acrobat Reader from Adobe. Sumatra PDF Portable is a lightweight PDF reader that loads in seconds and features a clean, uncluttered interface.

Miranda IM
Using Miranda IM you can take your instant messaging contacts on the road with you, and communicate with friends and family regardless of the IM program they are using.