A collection of links to free and open source applications maintained for personal reference.
Most of the applications are for the Windows platform, but for many you can find builds for other platforms too.
VCV Rack Open-source virtual modular synthesizer.
ASIO4ALL Universal ASIO Driver For WDM Audio.
Friture An open source real-time audio analyzer.
Audacity Free, open source, cross-platform audio software.
Sonic Visualiser An open source application for viewing and analysing the contents of music audio files.
VoiceMeeter Potato An audio mixer application endowed with a virtual audio device to mix and manage any audio sources from or to any audio devices or applications.
MIDI-OX A fully featured all-purpose MIDI utility.
MIDI Yoke Junction A MIDI Patch Cable driver.
Lazarus A Delphi compatible cross-platform IDE for Rapid Application Development.
Turbo Rascal Syntax Error (TRSE) A complete suite (IDE, compiler, programming language, resource editor) intended for developing games/demos for 8 / 16-bit line of computers, with a focus on the MOS 6502, the Motorola 68000, the (GB)Z80 and the X86. The language resembles that of Turbo Pascal.
ZeroBrane Studio Lightweight IDE for your Lua needs.
ILSpy The open source .NET assembly browser and decompiler.
Eclipse A mature, scalable and commercially-friendly environment for open source software collaboration and innovation.
OpenTx Open source firmware for RC radio transmitters.
Thonny Python IDE for beginners
LogViewer A multi-purpose logviewer.
CPU-Z System information software.
API Monitor A free software that lets you monitor and control API calls made by applications and services.
SpaceSniffer Find lost space on your disks using a Treemap visualization layout.
Zadig USB driver installation made easy
H2testw Checks SD cards for errors
Rufus The Reliable USB-drive Formatting Utility
Process Hacker A free, powerful, multi-purpose tool that helps you monitor system resources, debug software and detect malware
QModMaster QModMaster is an implementation of a ModBus master application. A graphical user interface allows easy communication with ModBus RTU and TCP slaves. QModMaster also includes a bus monitor for examining all traffic on the bus.
Open Hardware Monitor The Open Hardware Monitor is a free open source software that monitors temperature sensors, fan speeds, voltages, load and clock speeds of a computer.
Seatools Diagnose, monitor, test and fix hard drives and SSDs.
MP3TAG The universal tag editor.
LibreOffice Free office suite.
Inkscape Draw Freely.
fritzing Electronics prototyping tool.
GIMP The Free & Open Source Image Editor.
Resource Editor Editor for RES files with a heavy bias toward the resource types commonly used by Delphi developers, but all common resource file formats and resource types are supported.
Resource Hacker Resource Hacker is a resource editor, compiler and decompiler for 32bit and 64bit Windows applications.
Visual Studio Code Extendable multiplatform code editor.
Quick Sequence Diagram Editor Quick Sequence Diagram Editor is a tool for creating UML sequence diagrams from textual descriptions of objects and messages that follow a very easy syntax.
yEd Graph Editor A powerful desktop application that can be used to quickly and effectively generate high-quality diagrams.
Blender The free and open source 3D creation suite.
Notepas A portable multi-platform text editor.
SnippetSource SnippetSource lets you organise your favorite pieces of code, scripts, thoughts, notes or other documents in a user definable tree structure.
QElectroTech QElectroTech is a free software to create electric diagrams.
Xournal++ Create handwritten notes and edit PDF files.
WinUAE Amiga emulator.
VICE The VersatIle Commodore Emulator.
blueMSX Emulator for the MSX platform.
fMSX Portable MSX emulator.
Speccy Portable Spectrum emulator.
DOSBox DOS-emulator.
RetroArch A frontend for emulators, game engines and media players.
EmulationStation A graphical and themeable emulator front-end that allows you to access all your favorite games in one place, even without a keyboard.
VirtualBox Virtualization software for x86 and AMD64/Intel64.
Vagrant Vagrant is a tool for building and managing virtual machine environments in a single workflow.
CloneVDI Virtual HD Clone and Optimize.
Ansible Configuration management tool.
Everything Locate files and folders by name instantly.
ReNamer A powerful and flexible file renaming tool.
Rename Master A freeware utility designed to rename multiple files with a just few clicks.
grepWin A simple search and replace tool which can use regular expressions to do its job.
Double Commander A free cross platform open source file manager with two panels side by side.
Junction Link Magic Junction Link Magic lets you create and manage NTFS junction points in a fast and easy way.
Win32 Disk Imager Write a raw disk image to any Removable Device.
Internet and networking tools
PuTTY SSH and telnet client.
Wireshark Network protocol analyzer.
WinPcap The industry-standard tool for link-layer network access in Windows environments.
P.SEN A free and open source TCP/UDP Network Test Utility for Windows and Linux.
FileZilla A fast and reliable cross-platform FTP, FTPS and SFTP client with lots of useful features and an intuitive graphical user interface.
WinSCP WinSCP is a popular SFTP client and FTP client for Microsoft Windows.
Teach2000 A private teacher to help you memorize a foreign language, topography or even the history of Italy by date.
Concepts A collection of modules which demonstrate some programming concepts and libraries.
Media encoding/decoding and conversion
PeaZip Free file archiver utility.
HandBrake The open source video transcoder.
MKVToolNix A set of tools to create, alter and inspect Matroska files.
ImgBurn A lightweight CD/DVD/HD DVD/Blu-ray burning application.
LameXP Audio Encoder Front-End.
UPX the Ultimate Packer for eXecutables.
Subtle Desktop client for opensubtitles API.
ImageMagick Use ImageMagick to create, edit, compose, or convert bitmap images.
Upscayl Upscayl lets you upscale your low resolution images using advanced AI Models.
Rapid Environment Editor Windows environment variables management.
Mouse Without Borders Control up to four computers from a single mouse and keyboard.
ConEmu Windows terminal emulator.
Windows Terminal Windows Terminal is a new, modern, feature-rich, productive terminal application for command-line users.
Winaero Tweaker Universal tweaker software which supports Windows 7, Windows 8, Windows 8.1 and Windows 10.
Rufus A utility that helps format and create bootable USB flash drives, such as USB keys/pendrives, memory sticks, etc.
PowerToys Windows system utilities to maximize productivity.
Ultimate Windows Tweaker Ultimate Windows Tweaker makes it easier to change Windows settings.