Best Free Software for Linux

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This list of Best Free Software for Linux now includes 155 apps in various categories. Among a plethora of freeware products, we have selected some gems in each category and added them to the list with clear and brief descriptions of each app.

To quickly find what you want, select an App Category on the top of this page or use the box below to view all apps in one massive list.

 

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FrostWire - YouTube downloader, BitTorrent client and media player:

http://www.frostwire.com/

 

SAWS - a Supercharged AWS CLI:
https://github.com/donnemartin/saws

 

oVirt is a production-ready virtual machine manager for the datacenter that also provides an awesome KVM management interface for multi-node virtualization:

http://www.ovirt.org/

 

The Irrlicht Engine is a cross-platform high performance realtime 3D engine written in C++:

http://irrlicht.sourceforge.net/

RPGboss:

http://rpgboss.com/

 

Stencyl starter is a game creation platform:

http://www.stencyl.com/

 

Twine is an open-source tool for telling interactive, nonlinear stories:

http://twinery.org/

 

"... SwiperProxy - a lightning-fast, open source web proxy that is easy for you to run and customize ...:"

https://swiperproxy.github.io/

 

Mattermost is an open source, on-prem Slack-alternative:

http://www.mattermost.org/

 

"... ScyllaDB - world's fastest NoSQL column store database ...:"

http://www.scylladb.com/

"... Jaro Mail is an integrated suite of interoperable tools to manage e-mail communication in a private and efficient way, without relying too much on on-line services, in fact encouraging users to store their email locally ...":

https://www.dyne.org/software/jaro-mail/

 

"... Monkey X free is a next-generation games programming language that allows you to create apps on multiple platforms with the greatest of ease ...":

http://www.monkey-x.com/

"... Apache Pig is a platform for analyzing large data sets that consists of a high-level language for expressing data analysis programs, coupled with infrastructure for evaluating these programs ...":

http://pig.apache.org/

 

"... pigz, which stands for parallel implementation of gzip, is a fully functional replacement for gzip that exploits multiple processors and multiple cores to the hilt when compressing data ...":

http://www.zlib.net/pigz/

Libgdx is a Java game development framework that provides a unified API that works across all supported platforms:

https://libgdx.badlogicgames.com/

"... PostInstallerF will install all the software that Fedora doesn't include commonly, after running Fedora for the first time ...":

https://github.com/kuboosoft/postinstallerf

pev - the PE file analysis toolkit:
http://pev.sourceforge.net/

 

HaxeFlixel is a 2D Game framework that lets you create cross-platform games easier with free, open source technology:
http://haxeflixel.com/

 

Overlap2D is an open source game UI, level and content editor:

http://overlap2d.com/

 

"... YARA is a tool aimed at (but not limited to) helping malware researchers to identify and classify malware samples. With YARA you can create descriptions of malware families (or whatever you want to describe) based on textual or binary patterns ...":
https://plusvic.github.io/yara/

 

CMake is a family of tools designed to build, test and package software:
http://www.cmake.org/

 

Rainbowstream - terminal-based Twitter client:

http://www.rainbowstream.org/

https://github.com/DTVD/rainbowstream

 

PMD is a source code analyzer. It finds common programming flaws like unused variables, empty catch blocks, unnecessary object creation, and so forth. It supports Java, JavaScript, XML, XSL:
http://sourceforge.net/projects/pmd/

"... Kite is a webmail designed to look a lot like gmail and to be easily deployable on a single server ...":

http://khamidou.github.io/kite/

 

Lumail is a modern console-based email client:

http://lumail.org/

tcpflow is a program that captures data transmitted as part of TCP connections (flows), and stores the data in a way that is convenient for protocol analysis and debugging:

https://github.com/simsong/tcpflow

Fervor - a graphical, modeless, cross-platform text editor:
https://github.com/jangler/fervor

"... DNSCrypt is a protocol that authenticates communications between a DNS client and a DNS resolver. It prevents DNS spoofing. It uses cryptographic signatures to verify that responses originate from the chosen DNS resolver and haven't been tampered with ...":
http://dnscrypt.org/

Spriter free:

http://www.brashmonkey.com/spriter.htm

 

JOSM is an extensible editor for ​OpenStreetMap:
https://josm.openstreetmap.de/

 

easystroke is a gesture-recognition application:

http://sourceforge.net/projects/easystroke/

 

"... Corebird is a modern, easy and fun Twitter client ...":

http://corebird.baedert.org/

 

Galaxy Forces 2 - a 2D multiplayer space shooter game:

http://sourceforge.net/projects/galaxyv2/

Endless Sky - a space exploration and combat game similar to Escape Velocity:

http://endless-sky.github.io/

 

Viper is a binary management and analysis framework dedicated to malware and exploit researchers:

http://viper.li/

 

OpenVAS is a framework of several services and tools offering a comprehensive and powerful vulnerability scanning and vulnerability management solution:
http://www.openvas.org/index.html

 

Turbulenz is an HTML5 game engine and server-side APIs available in JavaScript and TypeScript for building and distributing 2D and 3D games that run on platforms that support HTML5 features such as modern browsers without the need for plugins:
https://github.com/turbulenz/turbulenz_engine

 

Freeminer is a Minecraft-inspired sandbox game:

https://github.com/freeminer/freeminer

 

"... NASC ... Its an app where you do maths like a normal person. It lets you type whatever you want and smartly figures out what is math and spits out an answer on the right pane. Then you can plug those answers in to future equations and if that answer changes, so does the equations its used in ...":
http://parnold-x.github.io/nasc/

 

Malheur is a tool for the automatic analysis of malware behavior (program behavior recorded from malicious software in a sandbox environment):

http://www.mlsec.org/malheur/

 

mitmproxy is a console tool that allows interactive examination and modification of HTTP traffic:
https://mitmproxy.org/doc/mitmproxy.html

 


NetworkMiner Free is a Network Forensic Analysis Tool (NFAT). NetworkMiner can be used as a passive network sniffer/packet capturing tool in order to detect operating systems, sessions, hostnames, open ports etc. without putting any traffic on the network:
http://www.netresec.com/?page=NetworkMiner

 

tcpdump - a powerful command-line packet analyzer:

http://www.tcpdump.org/

 

"... Malcom is a tool designed to analyze a system's network communication using graphical representations of network traffic, and cross-reference them with known malware sources. This comes handy when analyzing how certain malware species try to communicate with the outside world ...":
https://github.com/tomchop/malcom

Minilens:

http://kobuge-games.github.io/minilens/

 

Craft:

http://www.michaelfogleman.com/craft/

 

OpenDungeons is an open source, real time strategy game sharing game elements with the Dungeon Keeper series and Evil Genius. Players build an underground dungeon which is inhabited by creatures. Players fight each other for control of the underground by indirectly commanding their creatures, directly casting spells in combat, and luring enemies into sinister traps:

http://opendungeons.github.io/

 

Tahoe-LAFS is a Free and Open decentralized cloud storage system. It distributes your data across multiple servers. Even if some of the servers fail or are taken over by an attacker, the entire file store continues to function correctly, preserving your privacy and security:

https://tahoe-lafs.org/trac/tahoe-lafs

 

Arx Libertatis is a cross-platform, open source port of Arx Fatalis:

http://arx-libertatis.org/

 

ioquake3 is a free software first person shooter engine based on the Quake 3: Arena and Quake 3: Team Arena source code:

http://ioquake3.org/

Browsersync:

http://www.browsersync.io/

 

OpenAge - free clone of the Age of Empires II engine:

http://openage.sft.mx/

Sup is a console-based email client for people with a lot of email:

http://supmua.org/

 

Notmuch:

http://notmuchmail.org/

Eric is a full featured Python and Ruby editor and IDE:
http://eric-ide.python-projects.org/index.html

 

Elkarbackup:

http://elkarbackup.github.io/

 

ZinjaI is a free C/C++ IDE:
http://zinjai.sourceforge.net/index_en.php?page=portada_en.php

 

Pritunl free VPN server:
http://pritunl.com/

 

SoftEther VPN:
https://www.softether.org/1-features

 

sshuttle:

https://github.com/apenwarr/sshuttle

 

GitPrep - a GitHub clone:

http://gitprep.yukikimoto.com/

 

Glastopf:

https://github.com/mushorg/glastopf

 

Sensu Core is an open-source monitoring framework:

https://sensuapp.org/#features

 

Cowrie is a medium interaction SSH honeypot designed to log brute force attacks and, most importantly, the entire shell interaction performed by the attacker:
https://github.com/micheloosterhof/cowrie

 

"... Shinken is a monitoring framework. It's a Python Nagios® Core total rewrite enhancing flexibility and large environment management ...":

http://www.shinken-monitoring.org/

 

Amanda Community Edition - open source backup and recovery software:

http://amanda.zmanda.com/

http://www.zmanda.com/download-amanda.php

 

Candy — a JavaScript-based multi-user chat client:

http://candy-chat.github.io/candy/

 

Prosody is a modern XMPP communication server:

https://prosody.im/

 

"... Cherokee is an innovative, feature rich, lightning fast and easy to configure open source web server designed for the next generation of highly concurrent secured web applications ...":

http://cherokee-project.com/

 

lighttpd - web server:

http://www.lighttpd.net/

 

OSSEC is an Open Source Host-based Intrusion Detection System that performs log analysis, file integrity checking, policy monitoring, rootkit detection, real-time alerting and active response:
http://www.ossec.net/

 

Consul:

https://www.consul.io/intro/index.html

 

Attic - a backup software:

https://attic-backup.org/

 

bareos:

https://www.bareos.org/en/

 

Archipel is a solution to manage and supervise virtual machines:

http://archipelproject.org/

 

"... Bro is an open source network security platform that illuminates your network's activity in detail ...":

https://www.bro.org/

 

DenyHosts is a script intended to be run by Linux system administrators to help thwart SSH server attacks (also known as dictionary based attacks and brute force attacks):

http://denyhosts.sourceforge.net/

 

Tupi - a design and authoring tool for digital artists interested in 2D Animation, offering an interface experience focused on 8-100 years old kids:

http://www.maefloresta.com/portal/about

"... Riemann aggregates events from your servers and applications with a powerful stream processing language. Send an email for every exception in your app. Track the latency distribution of your web app. See the top processes on any host, by memory and CPU. Combine statistics from every Riak node in your cluster and forward to Graphite. Track user activity from second to second ...":

http://riemann.io/

 

strongSwan - IPsec-based VPN Solution:

https://www.strongswan.org/

 

tinc is a VPN daemon that uses tunnelling and encryption to create a secure private network between hosts on the Internet:

http://www.tinc-vpn.org/

 

OpenVZ is container-based virtualization for Linux. OpenVZ creates multiple secure, isolated Linux containers (otherwise known as VEs or VPSs) on a single physical server enabling better server utilization and ensuring that applications do not conflict. Each container performs and executes exactly like a stand-alone server; a container can be rebooted independently and have root access, users, IP addresses, memory, processes, files, applications, system libraries and configuration files:

http://openvz.org/Main_Page

 

Cabot is a free, open-source, self-hosted infrastructure monitoring platform:

http://cabotapp.com/

https://github.com/arachnys/cabot

 

Xymon is a system for monitoring of hosts and networks, inspired by the Big Brother system. It provides real-time monitoring, an easy web-interface, historical data, availability reports and performance graphs:

http://xymon.sourceforge.net/

 

Linux Malware Detect (LMD) is a malware scanner that is designed around the threats faced in shared hosted environments:

https://www.rfxn.com/projects/linux-malware-detect/

 

Fail2ban scans log files and bans IPs that show the malicious signs -- too many password failures, seeking for exploits, etc.:

http://www.fail2ban.org/

 

fwknop:

https://www.cipherdyne.org/fwknop/

 

Backupninja allows you to coordinate system backup by dropping a few simple configuration files into /etc/backup.d/:

https://labs.riseup.net/code/projects/backupninja

"... Auteria is a fantasy world within our real world. It is a free to play 3D multiplayer online game ...":

https://www.auteria.com/

 

GemRB (Game engine made with pre-Rendered Background) is a portable open-source implementation of Bioware's Infinity Engine:

http://sourceforge.net/projects/gemrb/

 

free heroes2 engine - free implementation of Heroes of the Might and Magic II engine:

http://sourceforge.net/projects/fheroes2/

 

Nota - free startegic game:

http://nota.machys.net/

 

GlPortal is a puzzle game inspired by Valves Portal:
http://glportal.de/

 

Ultimate Stunts is a remake of the famous DOS-game stunts:

http://www.ultimatestunts.nl/

 

Tile racer:

http://tileracer.model-view.com/tl/index.php/news.html

 

Slam Soccer 2006 is a funny football game in 3D-comic-style:

http://www.bolzplatz2006.de/en/about.php

 

Zaz - puzzle game:

http://sourceforge.net/projects/zaz/

 

Terminal Overload is a home-made experimental free and open source multiplayer FPS game:

http://www.terminal-overload.org/

 

Babylon project - community created freeware space combat simulator based on the Babylon 5 universe:

http://babylon.hard-light.net/

 

Kobo Deluxe:

http://olofson.net/kobodl/

http://olofson.net/kobodl/download.html

"... MistServer open source is high performing and efficient media server ...":
http://www.mistserver.org/products/MistServer

Light Table - code editor:

http://lighttable.com/

 

TexitEasy is a free, cross-platform and open-source latex editor:

http://texiteasy.com/

 

Geogebra is a multi-platform mathematics software:

https://www.geogebra.org/

 

OpenFX is an Open-Source 3D modeling, animation and rendering suite:
http://www.openfx.org/

DataMelt is a free mathematics software for scientists, engineers and students. It can be used for numeric computation, statistics, symbolic calculations, data analysis and data visualization:

http://jwork.org/dmelt/#readme

"...Subuser turns a docker container into a normal program ...": http://subuser.org/index.html

grab-site is an easy preconfigured web crawler designed for backing up websites:

https://github.com/ludios/grab-site

Encryptr - a free, open source password manager and e-wallet:
https://encryptr.org/

 

Mr. Rescue is an arcade styled 2d action game centered around evacuating civilians from burning buildings:

http://tangramgames.dk/games/mrrescue/

Quill is a free, open siource WYSIWYG editor built for the modern web:

http://quilljs.com/

 

"... Kamailio is an Open Source SIP Server released under GPL, able to handle thousands of call setups per second. Kamailio can be used to build large platforms for VoIP and realtime communications – presence, WebRTC, Instant messaging and other applications ...":

http://www.kamailio.org/w/

 

"... Embedthis Pak is a package manager for application components. Pak makes it easy to retrieve, integrate and manage components for applications ...":
https://embedthis.com/pak/index.html

 

Nikola — static site generator:

https://getnikola.com/

 

"... Grav is a fast, simple, and flexible file-based web-platform ...":
http://getgrav.org/

 

Yawls (Yet Another Webcam Light Sensor) - adjust the brightness level of your display by using the internal/external webcam of your notebook as an ambient light sensor:

https://launchpad.net/yawls

 

Seed7 - interpreter and compiler for the Seed7 programming language:

http://sourceforge.net/projects/seed7/

 

slap is a Sublime-like terminal-based text editor that strives to make editing from the terminal easier:
https://github.com/slap-editor/slap

 

RPGboss is a 2D role-playing game engine and application designer:
http://rpgboss.com/

 

Raccoon - A Google Play desktop client:

http://www.onyxbits.de/raccoon

 

MikroLock combines modern cryptography and ease of use:

http://andre-simon.de/doku/mlock/en/mlock.php

"... Kakoune is a code editor heavily inspired by Vim, as such most of its commands are similar to vi’s ones ...":

https://github.com/mawww/kakoune/

 

"... Scumblr is a web application that allows performing periodic searches and storing/taking actions on the identified results ...":

https://github.com/Netflix/scumblr

 

"... qfc is a shell auto-complete alternative which features real-time multi-directories matching: It provides results while you type against files in the current directory and its sub-directories ...":

https://github.com/pindexis/qfc

 

doit is a task management and automation tool:

http://pydoit.org/

 

".. toplip is our command line, very strong encryption and decryption utility with optional plausible deniability, image embedding, and multiple/variable passphrase complexity ...":

https://2ton.com.au/toplip/

 

"... Pentobi is a computer opponent for the board game Blokus ...":

http://pentobi.sourceforge.net/

 

mtCellEdit - a lightweight spreadsheet program:

http://mtcelledit.sourceforge.net/

 

"... Cyrus is a highly scalable enterprise mail system designed for use in enterprise environments of various sizes using standards based technologies ...":

https://cyrusimap.org/index.php

 

nuBASIC is a programming language from the BASIC family:

http://www.nubasic.eu/

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