Portable software

instant messaging client

CPU-Z is a freeware system profiling and monitoring application for Microsoft Windows and Android that detects the central processing unit, RAM, motherboard chipset, and other hardware features of a modern personal computer or Android device.

download manager for Windows, Android, Mac and Linux

270px|thumb|right|A standard tiddler edit dialogue box on TiddlyWiki 5.2.0

PPSSPP (an acronym for "PlayStation Portable Simulator Suitable for Playing Portably") is a free and open-source PSP emulator for Windows, macOS, Linux, iOS, Android, Nintendo Wii U, Nintendo Switch, BlackBerry 10, MeeGo, Pandora, Xbox Series X/S and Symbian with a focus on speed and portability. It was released to the public on November 1, 2012, licensed under the GNU GPLv2 or later. The PPSSPP project was created by Henrik Rydgård, one of the co-founders of the Dolphin emulator.

VirtualDub is a free and open-source video capture and video processing utility for Microsoft Windows written by Avery Lee. It is designed to process linear video streams, including filtering and recompression. It uses AVI container format to store captured video. The first version of VirtualDub, written for Windows 95, to be released on SourceForge was uploaded on August 20, 2000.

2006 video game

free and open-source antivirus tool for Windows

VisualBoyAdvance (commonly abbreviated as VBA) is a free emulator of the Game Boy, Game Boy Color, and Game Boy Advance handheld game consoles as well as of Super Game Boy and Super Game Boy 2.

AssaultCube, formerly ActionCube, is an open source first-person shooter video game, based on Cube and using the Cube Engine. Although the main focus of AssaultCube is multiplayer online gaming, a single-player mode consists of computer-controlled bots.

computer company with a product for launching Windows applications from USB drives, and the specifications for their product

stick figure animation software

InfraRecorder is an open-source CD and DVD writing program for Microsoft Windows. First started by Christian Kindahl in the Google Summer of Code 2006, InfraRecorder uses the cdrtools software library to perform the actual burning.

HijackThis (also HiJackThis or HJT) is a free and open-source tool to detect malware and adware on Microsoft Windows. It was originally created by Merijn Bellekom, and later sold to Trend Micro. The program is notable for quickly scanning a user's computer to display the most common locations of malware, rather than relying on a database of known spyware. HijackThis is used primarily for diagnosis of malware, not to remove or detect spyware—as uninformed use of its removal facilities can cause significant software damage to a computer. Browser hijacking can cause malware to be installed on a c

240px|thumbnail|right|FreeOTFE4PDA FreeOTFE is a discontinued open source computer program for on-the-fly disk encryption (OTFE). On Microsoft Windows, and Windows Mobile (using FreeOTFE4PDA), it can create a virtual drive within a file or partition, to which anything written is automatically encrypted before being stored on a computer's hard or USB drive. It is similar in function to other disk encryption programs including TrueCrypt and Microsoft's BitLocker.

SMPlayer is a cross-platform graphical front-end for MPlayer and mpv and forks of Mplayer using GUI widgets offered by Qt. SMPlayer is free and open-source software subject to the terms of the GNU General Public License version 2 or later. SMplayer has been localized in more than 30 languages.

TestDisk is a free and open-source data recovery utility that helps users recover lost partitions or repair corrupted filesystems. TestDisk can collect detailed information about a corrupted drive, which can then be sent to a technician for further analysis. TestDisk supports DOS, Microsoft Windows (i.e. NT 4.0, 2000, XP, Server 2003, Server 2008, Vista, Windows 7, Windows 8.1, Windows 10), Linux, FreeBSD, NetBSD, OpenBSD, SunOS, and MacOS. TestDisk handles non-partitioned and partitioned media. In particular, it recognizes the GUID Partition Table (GPT), Apple partition map, PC/Intel BIOS par

Xonotic () is a free and open-source first-person shooter video game. It was developed as a fork of Nexuiz, following controversy surrounding the game's development. The game runs on a heavily modified version of the Quake engine known as the DarkPlaces engine. Its gameplay is similar to the Quake 3 Arena series of games, but with various unique elements.

third-party closed-source freeware multiprotocol IM client

web browser based on the Chromium web browser

ZSNES is an emulator for the Super Nintendo Entertainment System released as free software. There are official ports for Linux, MS-DOS, Windows, and unofficial ports for Xbox, and macOS.

email and newsgroups client

PortableApps.com is a website that distributes free applications for Windows that have been packaged for portability. These portable applications are intended to be used from removable storage devices such as USB flash drives.

PhotoRec is a free and open-source utility software for data recovery with text-based user interface using data carving techniques, designed to recover lost files from various digital camera memory, hard disk and CD-ROM. It can recover the files with more than 480 file extensions (about 300 file families). It is also possible to add custom file signature to detect less known files.

email client

TightVNC is a free and open-source remote desktop software server and client application for Linux and Windows. A server for macOS is available under a commercial source code license only, without SDK or binary version provided. Constantin Kaplinsky developed TightVNC, using and extending the RFB protocol of Virtual Network Computing (VNC) to allow end-users to control another computer's screen remotely.

ImgBurn is an optical disc authoring program that allows the recording of many types of CD, DVD and Blu-ray images to recordable media (.cue files are supported as of version 2.4.0.0). Starting with version 2.0.0.0, ImgBurn can also burn files and data directly to CD or DVD. It is written in C++. It supports padding DVD-Video files so the layer break occurs on a proper cell boundary (where possible).

open source software package for 3D graphics

e-mail client

portable version of Mozilla Firefox browser

Instantbird is a discontinued cross-platform instant messaging client based on Mozilla's XULRunner and the open-source library libpurple used in Pidgin. Instantbird is free software available under the GNU General Public License. Over 250 add-ons allow user customization of, and addition of, features. On October 18, 2017, Florian Quèze announced that "... we are stopping development of Instantbird as a standalone product."

RustDesk is a remote access and remote control software, primarily written in Rust, that enables remote maintenance of computers and other devices. The RustDesk client runs on operating systems such as Microsoft Windows, Apple MacOS, Apple iOS, Android and common Linux distributions. RustDesk has the aspiration to be an open-source alternative to remote desktop software such as TeamViewer or AnyDesk. As a result, RustDesk can function without relying on additional tools such as VPNs or port forwarding, even behind firewalls or NATs.

open source audio player

PhotoFiltre is a shareware image editing and effects program published by Antonio Da Cruz. It is considered to be a portable application.

WinDirStat is a free and open-source graphical disk usage analyzer for Microsoft Windows. It presents a sub-tree view with disk-use percentage alongside a usage-sorted list of file extensions that is interactively integrated with a colorful graphical display (a treemap). Created as an open-source project released under the GNU GPL, it was developed using Visual C++/MFC and distributed using GitHub. The project was inspired by SequoiaView, an application based on research done by the Visualization Section of the Faculty of Mathematics and Computer Science at the Technische Universiteit Eindhove

fre:ac is a free audio converter and CD extractor for Windows, Linux, macOS, and FreeBSD, distributed under the GPL-2.0-or-later.

Launchy is a free and open-source application launcher for Windows, , FreeBSD and Linux. It indexes shortcuts in the start menu, and files in specific folders, to allow quicker access to programs without opening the start menu or browsing to folders.

free uninstallation software

MuPDF is a free and open-source software framework written in C that implements a PDF, XPS, and EPUB parsing and rendering engine. It is used primarily to render pages into bitmaps, but also provides support for other operations such as searching and listing the table of contents and hyperlinks.

Go-oo (short for Go-Open Office) was a free and open-source office productivity software suite developed and sponsored by Novell. It originated as a set of patches to OpenOffice.org known as ooo-build developed in 2003 the Linux software company Ximian and led by Michael Meeks. In October 2007 Go-oo was released as an independent fork with additional features. Go-oo incorporated enhancements not accepted by the upstream project, which was maintained by Sun Microsystems, and offered improved support for Microsoft Office formats, faster development cycles, and more permissive policies for accept

SlimBrowser is a tabbed multiple-site web browser from FlashPeak, Inc., an Austin, Texas-based company.

FCEUX is an open-source Nintendo Entertainment System and Family Computer Disk System emulator. It is a merger of various forks of FCE Ultra.

UltraVNC (sometimes written uVNC) is an open-source remote-administration/remote-desktop-software utility.

PDF reader for Microsoft Windows by Tracker Software (discontinued freemium software)

GreenBrowser is a discontinued freeware web browser based on Internet Explorer's core. GreenBrowser is based upon the Trident rendering engine used in Internet Explorer.

Anim8or is a freeware OpenGL-based 3D modeling and animation program by R. Steven Glanville, a software engineer at NVidia. Currently at stable version 1.01.1402, it is a compact program with several tools which would normally be expected in high-end, paid software. To date, every version released has been under 3 MB, despite the fact that it does not make full use of Windows' native interface, carrying some graphical elements of its own. Although few official tutorials have been posted by the author, many other users have posted their own on sites such as YouTube and the anim8or home page. Wh

Mathomatic is a free, portable, general-purpose computer algebra system (CAS) that can symbolically solve, simplify, combine and compare algebraic equations, and can perform complex number, modular, and polynomial arithmetic, along with standard arithmetic. It can perform symbolic calculus (derivative, extrema, Taylor series, and polynomial integration and Laplace transforms), numerical integration, and can handle all elementary algebra except logarithms. Trigonometric functions can be entered and manipulated using complex exponentials, with the GNU m4 preprocessor. Not currently implemented a

Multi-platform command-line web browser

web browser designed to run on both the Tor and XeroBank anonymity networks

GNUMail is a free and open-source, cross-platform e-mail client based on GNUstep or Cocoa. It is the official mail client of GNUstep and is also used in Étoilé. It was inspired by NeXTMail (NeXT's Mail.app), the predecessor of Apple Mail. GNUMail is based on the mail handling framework Pantomime. GNUMail demonstrated that it is possible to develop cross platform programs for GNUstep and Cocoa.

RocketDock is an application launcher developed by PolyVector and Skunkie of Punk Labs, in collaboration with artist Zachary Denton Q. It is designed for Windows and offers a dock similar to the one found in the Mac OS X Aqua graphical user interface. RocketDock is available for free under a Creative Commons license and is distributed by Punk Labs, which was previously known as Punk Software.

proprietary email system released for Novell Netware local area network

PARI/GP is a computer algebra system with the main aim of facilitating number theory computations. Versions 2.1.0 and higher are distributed under the GNU General Public License. It runs on most common operating systems.

RSSOwl is a discontinued news aggregator for RSS and Atom news feeds. It is written in Java and built on the Eclipse Rich Client Platform which uses SWT as a widget toolkit to allow it to fit in with the look and feel of different operating systems while remaining cross-platform. Released under the EPL-1.0 license, RSSOwl is free software.

Ghostzilla is a discontinued open source web browser for Microsoft Windows based on Mozilla Application Suite 1.0.1. It ran the browser inside the window space of another application (e.g. in Microsoft Outlook), where the page was then made to look like the content in an email. When moving the cursor out of the window, the browser subsequently disappeared.

DVDStyler is a DVD authoring tool that supports creating video content for both DVDs and CDs, allowing users to burn the output to either DVD or CD media. It allows menu creation, buttons, and DVD previews. It is free and open source software under the GNU GPL.

PokerTH is an open-source Texas hold 'em simulator that runs on Windows, Mac OS X, Linux, and Android. PokerTH is written in C++ using the Qt framework and allows for up to ten human players, with computer-controlled players filling in if there are not enough humans. Players can also play against other PokerTH users online. The game has ample settings so that players can configure and customize play. The online community is still active as of July 2022, with dozens of active players and several running games at any given time.

Tkabber is a GPL instant messaging client for the XMPP protocol which uses the Tk toolkit for the GUI. It runs on anything to which Tcl/Tk is ported: almost any X-based system (namely, any Linux and *BSD, Solaris, etc.), Microsoft Windows, and Mac OS X.

password manager by Bruce Schneier

privacy-oriented web browser