Cool Free/Open Source Software

Collection by Charles Nichols • Last updated 4 weeks ago

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Useful and fun free and/or open source software.

Charles Nichols
Office/Business
System Utility
Gaming
Game Development
Programming/Database
Music/Audio Production
Not Free but too awesome to ignore...
Desktop Enhancement
Security/Privacy/Network
Operating Systems
Misc.
Internet/Mail
Servers/Database
Media Management
Virtual/Emulation
Notes
Writing/Authoring
3-D Modeling/Animation/Illustration Production
2-D Vector/Art/Photo Production
Video/Animation Production

Office/Business

Open Source MS Word 2019 clone. Linux

o20.Word

Open Source MS Word 2019 clone. Linux

SpeedCrunch is a high-precision scientific calculator featuring a fast, keyboard-driven user interface. It is free and open-source software, licensed under the GPL. Linux, OS X, Windows

SpeedCrunch

SpeedCrunch is a high-precision scientific calculator featuring a fast, keyboard-driven user interface. It is free and open-source software, licensed under the GPL. Linux, OS X, Windows

Banking and money management. Linux, Mac, Windows.

GNUCash

Banking and money management. Linux, Mac, Windows.

Office Suite for Linux, Mac, Windows

FreeOffice

Office Suite for Linux, Mac, Windows

Office Suite. Linux, Mac, Windows.

WPS

Office Suite. Linux, Mac, Windows.

Office suite Linux, Mac, Windows. I prefer it over the others. It's clean and simple, and stable.

OnlyOffice Desktop

Office suite Linux, Mac, Windows. I prefer it over the others. It's clean and simple, and stable.

System Utility

SSH,RDP,VNC, etc. client. Windows

mRemoteNG

SSH,RDP,VNC, etc. client. Windows

Network protocol analyzer. Linux, OS X, Windows.

Wireshark

Network protocol analyzer. Linux, OS X, Windows.

Free backup software to store encrypted backups online. Windows, OS X, Linux

Duplicati

Free backup software to store encrypted backups online. Windows, OS X, Linux

When your computer is getting full, BleachBit quickly frees disk space. Linux, Windows, OS X.

Bleachbit

When your computer is getting full, BleachBit quickly frees disk space. Linux, Windows, OS X.

An effective launcher for windows A full-featured launcher, access programs and web contents as you type. Be more productive ever since.

Wox

An effective launcher for windows A full-featured launcher, access programs and web contents as you type. Be more productive ever since.

OnyX is a multifunction utility that you can use to verify the structure of the system files, to run miscellaneous maintenance and cleaning tasks, to configure parameters in the Finder, Dock, Safari, and some of Apple's applications, to delete caches, to remove certain problematic folders and files, to rebuild various databases and indexes, and more. OS X only.

Onyx

OnyX is a multifunction utility that you can use to verify the structure of the system files, to run miscellaneous maintenance and cleaning tasks, to configure parameters in the Finder, Dock, Safari, and some of Apple's applications, to delete caches, to remove certain problematic folders and files, to rebuild various databases and indexes, and more. OS X only.

Gaming

Game manager, tracker, executed for Linux. Works with GOG, Steam, Wine, and native.

Lutris Game Manager

Game manager, tracker, executed for Linux. Works with GOG, Steam, Wine, and native.

Playnite is an open source video game library manager with one simple goal: To provide a unified interface for all of your games. Windows

Playnite

Playnite is an open source video game library manager with one simple goal: To provide a unified interface for all of your games. Windows

Emulator and game manager. OS X

OpenEMU

Emulator and game manager. OS X

Sulis is a Role Playing Game (RPG) with turn based, tactical combat, deep character customization and an engaging storyline.  Linux, Windows.

Sulis

Sulis is a Role Playing Game (RPG) with turn based, tactical combat, deep character customization and an engaging storyline. Linux, Windows.

First Person - VR - dungeon crawler. Windows

Ancient Dungeon

First Person - VR - dungeon crawler. Windows

Game launcher, organizer, and configuration tool. Linux

Gamehub

Game launcher, organizer, and configuration tool. Linux

Game Development

Game tile and map editor. Linux, Mac, Windows.

Tiled

Game tile and map editor. Linux, Mac, Windows.

Game engine/SDK for Python, Swift, JS. Linux, Mac, Windows.

Cocos2D

Game engine/SDK for Python, Swift, JS. Linux, Mac, Windows.

Game engine/SDK. Linux, Mac, Windows.

Irrlicht 3D

Game engine/SDK. Linux, Mac, Windows.

Game engine/SDK for C++/C#. Linux, Mac, Windows.

Godot

Game engine/SDK for C++/C#. Linux, Mac, Windows.

Game engine/SDK for Python, C++, Java (Android). Linux, Mac, Windows.

Ogre3d

Game engine/SDK for Python, C++, Java (Android). Linux, Mac, Windows.

Game engine/API for Java. Linux, Mac, Windows.

JMonkeyEngine

Game engine/API for Java. Linux, Mac, Windows.

Game engine/SDK for C#. Windows.

Xenko

Game engine/SDK for C#. Windows.

Lua game development engine. Linux, Mac, Windows.

Love

Lua game development engine. Linux, Mac, Windows.

Defold 2D game development studio. Linux, Mac, Windows.

Defold Game Creation

Defold 2D game development studio. Linux, Mac, Windows.

Visual novel creation with Python. Linux, Mac, Windows, Web.

RenPy

Visual novel creation with Python. Linux, Mac, Windows, Web.

Programming/Database

Flutter is Google’s UI toolkit for building beautiful, natively compiled applications for mobile, web, and desktop from a single codebase.

Flutter

Flutter is Google’s UI toolkit for building beautiful, natively compiled applications for mobile, web, and desktop from a single codebase.

bpython is a fancy interface to the Python interpreter for Linux, BSD, OS X and Windows (with some work).

bython

bpython is a fancy interface to the Python interpreter for Linux, BSD, OS X and Windows (with some work).

Meld

File diff/merger for Linux. For Mac see: https://yousseb.github.io/meld/

Diff and merge program for Windows.

WinMerge

Diff and merge program for Windows.

CodeLite is an open source, free, cross platform IDE specialized in C, C++, PHP and JavaScript (mainly for backend developers using Node.js) programming languages which runs best on all major Platforms ( OSX, Windows and Linux ).

Codelite

CodeLite is an open source, free, cross platform IDE specialized in C, C++, PHP and JavaScript (mainly for backend developers using Node.js) programming languages which runs best on all major Platforms ( OSX, Windows and Linux ).

IDE with GUI designer using Crazy Eddie's GUI toolkit, C languages. Linux, Mac, Windows.

CEED/CEGUI

IDE with GUI designer using Crazy Eddie's GUI toolkit, C languages. Linux, Mac, Windows.

SASM (SimpleASM) - simple Open Source crossplatform IDE for NASM, MASM, GAS, FASM assembly languages. Linux, Windows.

SASM

SASM (SimpleASM) - simple Open Source crossplatform IDE for NASM, MASM, GAS, FASM assembly languages. Linux, Windows.

Music/Audio Production

LMMS is a DAW similar to FL Studio. Linux, Mac, Windows.

LMMS

LMMS is a DAW similar to FL Studio. Linux, Mac, Windows.

Soundfont editor. Linux, Mac, Windows.

Polyphone

Soundfont editor. Linux, Mac, Windows.

VST3\AU synth plugin. Linux, Mac, Windows.

Surge

VST3\AU synth plugin. Linux, Mac, Windows.

DAW for Mac and Windows

Soundbridge DAW

DAW for Mac and Windows

DAW for Linux, Mac, Windows

Tracktion WAVEFORM

DAW for Linux, Mac, Windows

Music player/organizer for Linux.

Lollypop

Music player/organizer for Linux.

Free radio streaming software for Windows, Mac & Linux.

Odio Radio

Free radio streaming software for Windows, Mac & Linux.

Easy, fast and powerful audio/wave editor. Linux, OS X, Windows.

Ocenaudio

Easy, fast and powerful audio/wave editor. Linux, OS X, Windows.

Clementine is a multiplatform music player. Linux, Windows, OS X.

Clementine

Clementine is a multiplatform music player. Linux, Windows, OS X.

Tutka MIDI Tracker for Linux, Mac.

Tutka

Tutka MIDI Tracker for Linux, Mac.

Not Free but too awesome to ignore...

See more

Desktop Enhancement

Organizes desktop into customization containers, displaying files and folders from chosen locations as icons and thumbnails. Windows only

Nimi Places

Organizes desktop into customization containers, displaying files and folders from chosen locations as icons and thumbnails. Windows only

Status-bar calendar for OS X

Itsycal

Status-bar calendar for OS X

Calendar. Linux, Mac, Windows.

Rainlendar

Calendar. Linux, Mac, Windows.

Security/Privacy/Network

Zenmap is the official Nmap Security Scanner GUI. Linux, Windows, OS X

NMAP (zenmap)

Zenmap is the official Nmap Security Scanner GUI. Linux, Windows, OS X

Network scanner. Linux, Mac, Windows.

Angry IP Scanner

Network scanner. Linux, Mac, Windows.

Operating Systems

Debian based Linux distro focusing on privacy, pin testing, and hacking (white hat ;)

Parrot

Debian based Linux distro focusing on privacy, pin testing, and hacking (white hat ;)

Misc.

Some would call TreeLine an Outliner, others would call it a PIM. Basically, it just stores almost any kind of information. Linux, Windows.

TreeLine

Some would call TreeLine an Outliner, others would call it a PIM. Basically, it just stores almost any kind of information. Linux, Windows.

Pattern drafting software geared towards the garment industry and fashion designers. Linux, OS X, Windows.

Valentina

Pattern drafting software geared towards the garment industry and fashion designers. Linux, OS X, Windows.

A realistic planetarium in 3D. Linux, Mac, Windows.

Stellarium

A realistic planetarium in 3D. Linux, Mac, Windows.

Like Google Earth. Linux, Mac, Windows.

Marble

Like Google Earth. Linux, Mac, Windows.

Internet/Mail

Bittorrent client. Linux, Windows, OS X.

Deluge

Bittorrent client. Linux, Windows, OS X.

Email client for Linux, Windows.

Claws mail

Email client for Linux, Windows.

Mail with calendar/scheduling for Mac and Windows. Also offer pro license for businesses.

eM Client

Mail with calendar/scheduling for Mac and Windows. Also offer pro license for businesses.

Servers/Database

See more

Media Management

See more

Virtual/Emulation

Flawless! Everything works including my Logitech F310 controller and 3DO games! Emulates most all the game consoles and arcade machines via Mame. Linux, Mac, Windows, Haiku, etc.

RetroArch

Flawless! Everything works including my Logitech F310 controller and 3DO games! Emulates most all the game consoles and arcade machines via Mame. Linux, Mac, Windows, Haiku, etc.

Notes

Simple note is my replacement for Apple notes on iPhone since it can sync to my Linux machine. It's simple and clean and runs on Linux, OS X, Windows, iPhone, and Android.

Simplenote

Simple note is my replacement for Apple notes on iPhone since it can sync to my Linux machine. It's simple and clean and runs on Linux, OS X, Windows, iPhone, and Android.

QOwnNotes for Linux, Mac, and Windows.

QOwnNotes

QOwnNotes for Linux, Mac, and Windows.

Writing/Authoring

Simple password protected diary. Linux, OS X, Windows.

Mini Diary

Simple password protected diary. Linux, OS X, Windows.

A writing tool like nothing you have seen before: plan, edit and share your work. OS X only

Manuscripts App

A writing tool like nothing you have seen before: plan, edit and share your work. OS X only

3-D Modeling/Animation/Illustration Production

3-D Suite for Windows. Might run on Linux via Wine. I stopped using it after version 4 but I loved it for its ease of use so you might too.

TrueSpace

3-D Suite for Windows. Might run on Linux via Wine. I stopped using it after version 4 but I loved it for its ease of use so you might too.

2-D photos to 3-D textured object (photo scanning). Converts images to a 3-D mesh for use in 3-D applications. Linux, Mac, Windows.

Meshroom

2-D photos to 3-D textured object (photo scanning). Converts images to a 3-D mesh for use in 3-D applications. Linux, Mac, Windows.

2-D Vector/Art/Photo Production

Vector graphic illustration for Linux, Windows, Mac.

sk1

Vector graphic illustration for Linux, Windows, Mac.

Simple image editor. Linux, OS X, Windows.

Pinta

Simple image editor. Linux, OS X, Windows.

Image file size reducer and resizer that I wrote. Similar to Trimage. Linux only.

Squeasy

Image file size reducer and resizer that I wrote. Similar to Trimage. Linux only.

Caesium is one of the most popular image optimization software available helping photographers, bloggers, webmasters, businesses or casual users at storing, sending and sharing digital pictures. OS X, Windows, Linux (self-compile)

Caesium

Caesium is one of the most popular image optimization software available helping photographers, bloggers, webmasters, businesses or casual users at storing, sending and sharing digital pictures. OS X, Windows, Linux (self-compile)

Trimage

A cross-platform tool for losslessly optimizing PNG and JPG files for web. Also removes all meta data. Linux, Mac, Windows

Video/Animation Production

Video editor. Linux, Windows, Mac via Macports.

KDEnlive

Video editor. Linux, Windows, Mac via Macports.

Openshot video editor. Linux, Mac, Windows.

Openshot Video Editor

Openshot video editor. Linux, Mac, Windows.

Lightworks (video editor) is the fastest, most accessible and focused NLE in the industry, because it is based on the simple idea that the editor, not the computer industry, knows what’s best. The latest release of Lightworks is based on the cumulative knowledge from twenty years of top-flight editing. Linux, Mac, Windows. Commercial.

Lightworks: The professional editor for everyone

Lightworks NLE official webpage

Olive is a free non-linear video editor aiming to provide a fully-featured alternative to high-end professional video editing software. Linux, OS X, Windows.

Olive

Olive is a free non-linear video editor aiming to provide a fully-featured alternative to high-end professional video editing software. Linux, OS X, Windows.

DVD authoring with titles, menus, etc. Linux, Mac, Windows.

DVDStyler

DVD authoring with titles, menus, etc. Linux, Mac, Windows.

Flutter is Google’s UI toolkit for building beautiful, natively compiled applications for mobile, web, and desktop from a single codebase.

Flutter

Flutter is Google’s UI toolkit for building beautiful, natively compiled applications for mobile, web, and desktop from a single codebase.

Vector graphic illustration for Linux, Windows, Mac.

sk1

Vector graphic illustration for Linux, Windows, Mac.

SSH,RDP,VNC, etc. client. Windows

mRemoteNG

SSH,RDP,VNC, etc. client. Windows

bpython is a fancy interface to the Python interpreter for Linux, BSD, OS X and Windows (with some work).

bython

bpython is a fancy interface to the Python interpreter for Linux, BSD, OS X and Windows (with some work).

LMMS is a DAW similar to FL Studio. Linux, Mac, Windows.

LMMS

LMMS is a DAW similar to FL Studio. Linux, Mac, Windows.

Soundfont editor. Linux, Mac, Windows.

Polyphone

Soundfont editor. Linux, Mac, Windows.

VST3\AU synth plugin. Linux, Mac, Windows.

Surge

VST3\AU synth plugin. Linux, Mac, Windows.

3-D Suite for Windows. Might run on Linux via Wine. I stopped using it after version 4 but I loved it for its ease of use so you might too.

TrueSpace

3-D Suite for Windows. Might run on Linux via Wine. I stopped using it after version 4 but I loved it for its ease of use so you might too.

Video editor. Linux, Windows, Mac via Macports.

KDEnlive

Video editor. Linux, Windows, Mac via Macports.

Game manager, tracker, executed for Linux. Works with GOG, Steam, Wine, and native.

Lutris Game Manager

Game manager, tracker, executed for Linux. Works with GOG, Steam, Wine, and native.

Playnite is an open source video game library manager with one simple goal: To provide a unified interface for all of your games. Windows

Playnite

Playnite is an open source video game library manager with one simple goal: To provide a unified interface for all of your games. Windows

Emulator and game manager. OS X

OpenEMU

Emulator and game manager. OS X

Open Source MS Word 2019 clone. Linux

o20.Word

Open Source MS Word 2019 clone. Linux

Sulis is a Role Playing Game (RPG) with turn based, tactical combat, deep character customization and an engaging storyline.  Linux, Windows.

Sulis

Sulis is a Role Playing Game (RPG) with turn based, tactical combat, deep character customization and an engaging storyline. Linux, Windows.

Some would call TreeLine an Outliner, others would call it a PIM. Basically, it just stores almost any kind of information. Linux, Windows.

TreeLine

Some would call TreeLine an Outliner, others would call it a PIM. Basically, it just stores almost any kind of information. Linux, Windows.

First Person - VR - dungeon crawler. Windows

Ancient Dungeon

First Person - VR - dungeon crawler. Windows