转摘自All AWESOME Linux Applications and Tools, 还有 luongvo209/Awesome-Linux-Software
Antivirus Tools
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ClamAV – an open source antivirus for fending off malware, viruses, and Trojans, among other malicious threats.
ClamTk – A lightweight graphical front-end for the popular command-line based ClamAV.
ChkrootKit – A free and open source lightweight toolkit to locally check for signs of a rootkit.
RootKit Hunter – A remarkable lightweight, open source security monitoring and analyzing tool.
Comodo – A powerful cross-platform anti-virus and email filtering software.
Sophos – A open source antivirus engine effectively detects and cleans viruses, trojans, and other malware.
BitDefender – A powerful and versatile anti-virus software suite for Linux
F-PROT – A free powerful anti-virus scanning engine for use on home/personal Linux workstations.
Audio Players
Audacious – A multi-platform, lightweight, free GTK-based music player focused on outstanding audio quality and multiple codec support.
Clementine – a multi-platform Amarok-inspired music player that delivers an efficient user flow and outstanding UI.
Google Play Music – An unofficial but modern cross-platform Desktop client for Google Play Music.
Lollypop – A modern, lightweight, material design-inspired music player built to work wonderfully on the GNOME desktop environment.
Museek – A cross-platform open-source music player application developed to be simple and yet, efficient.
Musique – A lightweight and open-source iTunes-like music player with various control options.
Rhythmbox – A free and open-source audio player that plays and helps organize digital audio files.
Tomahawk – An advanced music player that compiles all your streams, radio stations, local audio files, cloud storage music, etc into one app.
SMPlayer – A free media player with support for virtually any video and audio format that you can think of.
Deepin Music – A music player developed by the Deepin Technology Team to focus on local music playing.
Harmony – A beautiful cross-platform music player with support for cloud services.
Sayonara Player – A C++-written audio player with a focus on speed and support by the Qt framework.
Nightingale – A beautiful cross-platform and open source app with support for various audio formats.
Exaile – A lightweight but powerful python-based music player with music management capabilities.
Nuvola Player – A web-based feature-rich music player for streaming music.
Qmmp – A Qt-based multimedia player with a focus on simplicity and versatility.
Mellow Player – A Cross-Platform Qt Cloud Music desktop application with the main focus of working with web-based music streaming services.
Artificial Intelligence
Deeplearning4j – A Java library and computing framework containing a variety of deep learning algorithms.
Caffe – A speed, expression, and modularity-focused framework for deep learning.
H20 – An open source platform for in-memory, distributed, and scalable predictive analysis and machine learning.
Mllib – A Spark’s scalable machine learning library consisting of common learning algorithms and utilities.
Apache Mahout – An open source project primarily used for creating machine learning algorithms that are scalable.
OpenNN – A machine learning research software library that implements neural networks.
Oryx 2 – A specialized Apache Spark and Apache Kafka-based lambda architecture for real-time mega scale machine learning.
OpenCyc – An A.I project containing a comprehensive compilation of day-to-day knowledge.
SystemML – A flexible machine learning system that automatically scales to Spark and Hadoop clusters.
NuPIC – An open source HTM theory-based platform and community for machine intelligence.
Backup Utilities
Rsync – A user-favourite command for syncing files locally and remotely on Unix and Linux computers.
Fwbackups – A feature-rich, free and open source cross-platform backup application.
Bacula -An open source data backup and recovery software that was made to be enterprise-ready features such as backup configuration, remote backing up and many more.
backupninja – A backup tool that allows users to perform secure and remote backups over a network. It lets users design backup activity configuration files.
sbackup – A backup suite for gnome desktops where users can access all configuration through the Gnome interface.
Kbackup – A backup software for Unix and Linux users which creates compresses the files being backed up.
BackupPC – An enterprise back up tool which can be used on Mac OS X, Windows and Unix/Linux.
Amanda – An open source backup tool that runs on both Unix/Linux and Windows.
Back In Time – A backup tool for Unix/Linux which saves a snapshot of the directory being backed up.
Box Backup – An open source backup tool with support for auto backup sessions.
Luckybackup – A free to download and easy to use backup and synchronization tool.
Borg Backup – an efficient and secure deduplicating backup program.
rdiff-backup – A powerful and easy-to-use Python script for local/remote incremental backup.
Restic – A free and open source easy-to-use command-line based backup app.
rsnapshot – A free rsync-based open source backup tool for Unix-like OSes.
Burp – A free, security-focused, and open source feature-rich backup & restore software.
Duplicity – A free open source, secure and bandwidth-efficient backup tool based on rsync.
Boot Loaders
GRUB – It is the most commonly used bootloader.
LILO – It is a simple and powerful Linux bootloader.
BURG – It is a new kind of bootloader which ships with features such as support for multiple platforms like Linux and Mac OS X.
Syslinux – A lightweight bootloader with the ability to work from a CD-ROM, over a network, etc.
Calendar Apps
Korganizer – A calendar application for scheduling with many rich features like supporting multiple calendars and todo lists.
Evolution – A Gnome personal management tool consisting of a calendar, address book, and an email client.
California – A relatively new calendar software for Gnome desktops.
Day Planner – A free open source calender software developed for Linux users to plan easily and manage their time.
Lightning – A calendar app used to easily organize schedules and events. It an extension to Thunderbird email client.
Calcurse – A command line-based calendar and scheduling app.
Rainlendar – An open source calendar app that displays all tasks and events on your desktop.
Kalendar – A beautiful, easy-to-use cross-platform Gregorian calendar that works best in KDE desktop.
Clipboard Managers
CopyQ – A smart clipboard manager that allows you to edit your system’s clipboard content.
Indicator Bulletin – An applet that allows you intelligently search for and edit your clipboard content using regular expressions.
Clipboard Anywhere – A free, lightweight, and cloud-enabled clipboard application with which you can copy to and paste from its clipboard.
GPaste – A powerful clipboard manager for Gnome-based systems.
Klipper – A clipboard app for KDE desktops.
Clipman – A lightweight clipboard application for distros like Xubuntu.
Diodon – A lightweight at the same time powerful clipboard app that works best when integrated with Unity and Gnome desktops.
Pasie – A clipboard manager for ubuntu with an app indicator on the top bar.
Parcellite – A lightweight clipboard app which is stripped down and contains few features like history management.
Glipper – A clipboard management app for Gnome environments.
Clipit – A lightweight GTK+ clipboard manager.
Keepboard – A cross-platform clipboard manager that allows users to save the history of their clipboard.
Chat Clients
Chatty – A Twitch chat client for everyone who appreciates a dedicated desktop application.
Caprine – A sleek Facebook Messenger client for desktops.
Cutegram – A user-friendly, free and open source telegram client.
Ghetto Skype – An electron-built Skype client for Linux desktops via Skype Web.
Messenger for Desktop – An unofficial client for Facebook messenger.
ScudCloud – An alternative Slack client for Linux.
YakYak – Desktop chat client for Google Hangouts.
Franz – A cross-platform messaging app which can support various social media platforms like Twitter and HipChat.
HexChat – A completely free IRC XChat-based chat client.
Jitsi – A free and open source instant messaging VoIP app with support for video conferencing.
pidging – A free cross-platform and an easy to use chat client used by millions.
Telegram – A messaging app with a focus on speed and security, it’s super fast, simple and free.
Viber – A free VoIP app for making calls and messages to other Viber users around the globe..
Weechat – A cross-platform command line based chat app which is lightweight and highly extensible.
Rambox – A free, Open Source and Cross Platform many-in-one platform with support for various web services.
Manageyum – A desktop application that enables you to use your online services from one app.
Keybase – A relatively new open-source chatting application for computers and mobile phones.
Commandline Players
Cmus – A powerful, open source ncursed-based command line music player.
MOC – A console audio player for LINUX, designed to be powerful and easy to use.
Mp3blaster – An audio player for the Linux text console.
Commandline Editors
Vi/Vim Editor – A command line based text editor with a lot of rich features making the most commonly used.
Nano Editor – An easy to use command line based text editor.
Emacs Editor – A command line text editor which is highly customizable.
Nice Editor – NE is an easy to use text editor for beginners, but powerful and fully configurable.
Cloud Storage Tools
Dropbox – A cloud storage that provides real-time data synchronization across multiple devices.
OwnCloud – A suite of client-server software for creating file hosting services and using them.
nextCloud – An actively maintained fork of ownCloud, a suite of client-server software for creating and using file hosting services.
Seafile – An open source synchronization and sharing platform with a focus on performance and privacy.
Pydio – A powerful open source cloud storage app with file sharing and synchronization just like the others.
ceph – A distributed storage system focusing on scalability and performance.
Syncany – An open-source cloud storage platform with support for cloud sharing and a focus on security..
cozy – A cloud storage app used for file sharing, synchronization and has a package that can build a complete App Engine.
GlusterFS – A scalable network filesystem built for data-intensive tasks like media streaming and cloud storage.
StackSync – A cloud storage app which has three main components namely; a synchronization server, operation swift, and desktop and mobile client.
Git-annex – A file sharing and storage app which is independent of any commercial organization or any central server.
Yandeh.Disk – A cross-platform cloud storage app which allows synchronization between different devices and ability to share them online.
Mega – A tool that makes possible to share selected local directories via web.
NAS4Free – An Open Source Storage NAS (Network-Attached Storage) distribution based on FreeBSD.
Syncthing – A free, open-source peer-to-peer file synchronization application.
Control Panels
cPanel – An easy-to-navigate Linux-based web hosting dashboard featuring automation tools for easier web hosting.
Plesk – A secure web hosting control panel for running websites and cloud applications.
ISPConfig – An open source and multilingual control panel which enables the use of more than one server under the same control panel.
Ajenti – A web-based, open source control panel for a wide variety of server management tasks.
EHCP – An open source and very effective Hosting Control Panel that offers you to host any websites.
Virtualmin – A powerful and flexible web hosting control panel for Linux and BSD systems.
WebMin – A web-based interface for setting up Apache, DNS, file sharing services, etc.
Froxlor – A lightweight and efficient control panel for servers. It is developed by experienced Server Administrators for the purpose of simplifying the management of Linux servers.
ISPsystem – A commercial web hosting control panel for managing Linux server and websites including handling CMS, domains, emails, and backups.
Vesta CP – An open source Unix/Linux web hosting control panel.
Communication Apps
Skype – A VoIP service for free calls and messages as well as cheap internet calls.
Pidgin – An instant messaging client with support for all chat services including Yahoo, Google Talk, and Aim.
Empathy – A messaging platform with text, voice, video chat, and file transfer support.
Viber – With Viber, you can send free calls and messages to other Viber users anywhere in the world.
Wire – A best instant messaging app that provides business chats, one-click voice and video conference calls and shared documents — all protected with end-to-end encryption.
Slack – A real-time messaging, archiving and search for modern teams.
Retroshare – An free and open-source peer-to-peer communication and file sharing app, based on a friend-to-friend network.
Ring – A privacy and freedom-focused communication platform.
Discord – All-in-one voice and text chat for gamers that’s free, secure, and works on both your desktop and phone.
Telegram – A messaging app with a focus on speed and security, it’s super fast, simple and free.
Data Backup and Recovery
Clonezilla – A free disk cloning, disk imaging, data recovery, and deployment computer program.
Photorec – A file data recovery tool designed to recover deleted or lost files including video, documents and photos from hard disks.
System Rescue CD – An OS tool for troubleshooting and repairing Linux desktops and servers.
Qt4-fsarchiver – An fsarchiver GUI app for saving/restoring folders, partitions, and GPT/MBR.
TestDisk – A free and open source data recovery tool for recovering deleted data.
TimeShift – A free system restore tool for Linux that uses rsync+hardlinks to create filesystem or BTRFS snapshots.
Mondorescue – A free and open source disaster recovery app capable of creating full Linux Clone/Backup ISO Images.
Bareos – An open source app that allows users backup, recovery and protect data on Linux systems.
Desktop Customization
GNOME Tweak – A useful tool configure system via setting options that include desktop hot corners, icon sizes, theme and icon customization, etc.
Unity Tweak – A settings manager for the Unity desktop that provides users with a fast, simple and easy-to-use interface. for customization.
Desktop Environments
GNOME 3 – A popular, free open source desktop environment for Linux users.
KDE Plasma 5 – A highly customizable desktop environment.
Cinnamon – A desktop environment made up several components like a fork of the Gnome shell.
Mate – A desktop environment which comes as the default for Linux MINT.
Unity – A graphical desktop shell environment for Gnome desktops.
Xfce – An open source lightweight desktop environment for Linux/Unix systems.
LXQt – An open source lightweight desktop environment for Linux and BSD systems.
LXDE – A free desktop environment with comparatively low resource requirements.
Pantheon – A simple Mac OS X look-alike desktop environment.
Deepin – A simple and productive desktop environment for Linux.
Enlightenment – A desktop environment which has libraries for mobiles and TV interfaces.
Budgie – A Linux desktop environment.
Download Managers
Flareget – A multi-threaded download manager and accelerator available for both Linux and Windows environments.
uGet – A popular download manager available for both Linux and Windows environments.
XDM – A download manager written in Java which can speed up download speed up to 500%.
Steadyflow – A GTK+ based download manager that aims for minimalism, ease of use, and a clean, malleable codebase.
DownThemAll – The first and only download manager/accelerator built inside Firefox.
Persepolis – A open source download manager and a GUI for aria2.
MultiGet – An easy-to-use download manager with support for multi-task with multi-thread on multi-server.
Axel – A command line download accelerator for Linux.
Diff Tools
diff Command – A Unix command line tool which shows the difference between two files.
colordiff – A Perl script with colour and syntax highlighting which shows the difference between two files.
wdiff – A command line app which shows the difference between two files on a word by word basis.
Vimdiff – An advanced manner in comparison to diff utility.
Kompare – A GUI diff app which allows for the merging of files.
DiffMerge – A cross-platform app used to compare and merge files.
Meld – A visual tool for diff and merging.
Diffuse – A Linux GUI diff tool that is written in Phyton.
XXdiff – A free Unix/Linux based directory comparator and merge app.
KDiff3 – A cross-platform diff and merge app.
TkDiff – A cross-platform and easy to use diff app.
Editors
Atom – A free and open-source text and source code editor for Linux.
Bluefish – A text editor used mainly by web developers on Linux environments.
Brackets – A modern text editor made specifically for web development.
Emacs – An extensible, customizable, free text editor and more.
Geany – A text editor which offers basic IDE like features.
Gedit – A general purpose text editor.
Kate – A feature-rich text editor that is highly customizable.
Sublime – A popular lightweight cross-platform text editor.
VSCode – A cross-platform open source text editor developed by Microsoft.
Kakoune – A free, open source, powerful, interactive, fast, scriptable and very customizable code editor with a client/server architecture.
Lighttable – The next generation code editor.
Micro – A modern, easy-to-use and intuitive cross-platform terminal-based text editor that works on Linux.
Nano – A command line text editor for Unix-like systems.
Vim – An advanced text editor with a more complete feature set.
Email Utilities
Mutt – A lightweight but powerful email client for Unix operating systems.
Alpine – An open source command line based email client which is easy to use.
Sup – A command line based email client which enables users to deal with a lot of emails.
Not Much Mail – A Linux based email system that can be used with a text editor or the command line.
Email Clients
Thunderbird – A free email client with easy set up and customize and it’s loaded with great features.
Evolution – An email client which includes an address book and a calendar.
KMail – An email client which is a component of KONTACT.
Geary – A Gnome email client which is easy to use.
Sylpheed – A lightweight cross-platform email client.
Claws – A lightweight and fast email client which is user-friendly.
Trojita – A super fast desktop email client for Linux.
Vmail – Vim-like Gmail client.
Emulators
Wine – A popular Linux app used for running Windows-based games and software on Linux.
PlayonLinux – An open source gaming app used to install any windows based app and games on Linux.
Finance Software
GnuCash – A personal and small-business financial-accounting software.
HomeBank – HomeBank is a free software that will guide you to manage your personal accounting.
KMyMoney – A personal finance accounting manager by KDE.
Skrooge – A personal finances manager, powered by KDE.
Firewalls
Iptables – A popular command line utility for configuring Linux kernel firewall.
Firewalld – A firewall which changes can be applied instantly without the need for a restart.
Shorewall – An open source gateway/firewall configuration tool for GNU/Linux.
UFW – An easy to use firewall for configuring and managing a firewall on Ubuntu and Debian distributions.
Vuurmuur – A powerful firewall manager built on top of iptables on Linux.
pfSense – An open source firewall and router based on FreeBSD.
IPFire – A professional and hardened Linux firewall distribution that is secure and easy to operate.
SmoothWall – An open source firewall which is highly configurable by using its web-based interface.
Endian – A firewall based on a concept that they can be deployed as routers, proxies, and VPNs.
ConfigServer Firewall – A cross-platform firewall which is very versatile.
GuFW – One of the easiest firewalls in the world of Linux.
FTP Clients
CrossFTP – A powerful FTP client that makes it extremely simple to manage the FTP related tasks.
Filezilla – A popular cross-platform FTP client that supports SSL/TLS connections.
FireFTP – A free, secure, cross-platform FTP/SFTP client for Mozilla Firefox which provides easy and intuitive access to FTP/SFTP servers.
gFTP – A free multi-threaded file transfer client for Linux systems.
Konqueror – An advanced file managers for KDE with support for FTP and SFTP servers.
LFTP – A sophisticated file transfer program supporting a number of network protocols (ftp, http, sftp, fish, torrent).
Nautilus – A file manager for Gnome desktop with the support for FTP and SFTP servers.
NcFTP – An FTP client program which debuted in 1990 as the first alternative FTP client.
File Managers
Konqueror – A powerful file manager for KDE desktops.
Nautilus – A simple file manager and comes as the default for Gnome systems.
Dolphin – A lightweight, free and open source file manager.
Midnight Commander – A command line file manager app which can only search, copy, move and delete files and directories.
Krusader – A file manager like Midnight Commander but with a GUI.
PCManFM – A feature-rich file manager usually on LXDE desktops.
XFE – A file manager for X windows.
Nemo – A file manager which is the default for Cinnamon desktops.
Thunar – A lightweight file manager for Xfce desktops.
SpaceFM – A stable multi panelled file manager for Linux desktops.
Caja – An advanced file manager which allows users to explore directories, preview files and more.
Ranger – An open source command line based file manager.
Double Commander – A free cross platform open source file manager with two panels side by side.
nnn – A terminal file browser with a strong focus on bridging the gap between the terminal and the desktop environment.
Polo – A modern, light-weight file manager for Linux with support for multiple panes and tabs.
Vifm – A file manager with curses interface, which provides Vi[m]-like environment for managing objects within file system.
Games
Steam – A cross-platform gaming platform that opens the gates to many games.
Wine – Wine (“Wine Is Not an Emulator”) is a compatibility layer capable of running Windows applications and games on Linux.
PlayOnLinux – A graphical front-end for the Wine software compatibility layer which allows Linux users to install Windows-based games.
RetroArch – A frontend for emulators, game engines and media players.
Itch.io – A simple way to find and share indie games online for free.
Lutris – An open gaming platform for Linux. It helps you install and manage your games in a unified interface.
Gnome Games – A collection of about 15 puzzle video games that is part of the standard free and open-source GNOME desktop environment.
Git Clients
GitKraken – A powerful GUI app which its users interact better with their repositories.
Git-cola – A powerful and highly configurable GUI Git client.
SmartGit – A cross-platform GUI based Git client.
Giggle – A free Linux based GUI git client that uses GTK+ toolkit.
Gitg – A Gnome app for viewing Git repositories.
Git GUI – A cross-platform GUI platform that focuses on commit generation.
Qgit – A power but easy to use GUI git Client.
GitForce – An easy to use GUI git client for Linux and Windows.
Egit – A git plugin to be used with the Eclipse IDE
GitEye – A powerful git client with features like code reviewing.
GITK – A multi-layered GUI client for GIT users.
Graphics
GIMP – An open source GNU image manipulation program.
Aftershot – A power, fast and highly customizable photo management app.
Agave – A very simple application for the GNOME desktop that allows you to generate a variety of color-schemes from a single starting color.
Blender – A 3D creation suite with support for all the 3D pipelines.
Digikam – An open source photo editing app meant for photographers.
Fotoxx – An open source photo collection manager which can also be used for photo editing.
gThumb – A free and open-source image viewer and organizer with options to edit images.
Inkscape – An alternative to Adobe Illustrator.
Kdenlive – A simple video editing app for basic use.
Krita – A popular image editing software.
Lightworks – A professional video editing app made for everyone.
OpenShot – A cross-platform feature-rich video editing app.
Pinta – A free, open source program for drawing and image editing.
Pitivi – An open source video editing app.
Shotwell – The default image editing app for Pantheon.
Shotcut – A free, Open Source, cross-platform video editor with a sleek User Interface.
VidCutter – An open-source cross-platform video editor with which you can quickly trim and join video clips.
FlowBlade – A multi-track non-linear video editor for Linux.
Kdenlive – A free and open source video-editing software from KDE.
Cinelerra – A video editing and compositing software package designed for the Linux operating system.
Ardour – A free and open source audio editing application permits you to record, edit, mix, and even master it.
Google Drive Clients
CloudCross – An open source cross-platform app that enables the synchronization of local files to a remote server.
Rclone – A command line based synchronization app for directories.
google-drive-ocamlfuse – A Google-backed command line fuse-based filesystem project for performing directory operations on your Google Drive account.
Grive2 – An independent open source implementation of Google Drive’s client for Linux.
GoSync – A GUI-enabled Google Drive client for Linux.
Hacking & Penetration Tools
Aircrack-ng – A complete suite of tools to assess WiFi network security.
THC Hydra – A parallelized login cracker which supports numerous protocols to attack.
John the Ripper – A free password cracking software tool.
Metasploit Framework – The world’s most used penetration testing framework.
Netcat – A powerful networking utility which reads and writes data across network connections.
Nmap – A strong network security scanner.
Nessus – A remote security vulnerability scanning tool.
WireShark – A free and open source packet analyzer.
Snort – A free open source network intrusion detection system.
Kismet Wireless – A wireless network detector, sniffer, and intrusion detection system.
Nikto – An open source web server scanner.
Yersinia – A network security/hacking tool.
Burp Suite Scanner – A graphical tool for testing Web application security.
Hashcat – A most advanced password recovery utility.
Maltego – A software used for open-source intelligence and forensics.
BeEF – A browser exploitation framework tool.
Fern Wifi Cracker – A wireless security auditing and attack software program.
GNU MAC Changer – An utility that makes the maniputation of MAC.
Wifite2 – A tool for auditing wireless networks.
Pixiewps – An offline Wi-Fi Protected Setup brute-force utility.
Hosting Billing Softwares
WHMCS – A leading web hosting and billing software that automates all aspects of your business from billing, provisioning, domain reselling, etc.
HostBill – A hosting billing platform designed for acquiring customers, automating provider services and more.
BILLmanager – An all-in-one web hosting billing software based on Linux.
Blesta – A customer management, billing, and support system for web hosting providers.
WeFact Hosting – An easy to use billing app designed for startup hosting and web design companies.
Freeside – An open source host billing app with ticketing platforms.
phpCOIN – An open source product specially designed for small and mid-sized hosting resellers.
CitrusDB – An open source billing system for small businesses.
Init Systems
System V Init – A package contains programs to control the startup, running and shutdown of all other programs.
SystemD – A new init scheme for Linux systems.
Upstart – An event-based init scheme developed by the makers of Ubuntu.
OpenRC – A dependency-based init scheme for Linux/Unix systems.
runit – A cross-platform Unix init scheme with service supervision.
IRC Clients
WeeChat – A light cross-platform command line based IRC.
Pidgin – Also a popular messaging client with the ability to support most chat services.
XChat – An IRC chat client for Linux and Windows which you can connect multiple chats networks at once.
HexChat – A cross-platform IRC chat client which is also free.
Irssi – A command line based IRC chat client which is easy to use.
Konversation – A Linux based IRC client which is user-friendly.
Quassel – A cross-platform IRC chat client which is considered to be newly fashioned.
IDE Editors
Netbeans – A popular open source IDE used mainly for Java and C/C++ development.
Code::Blocks – A free, highly extensible and configurable, cross-platform C++ IDE.
Eclipse – An open source cross-platform IDE commonly mostly among Java developers.
CodeLite – A free open source cross-platform IDE, built for programmers.
Bluefish – A cross-platform editor which makes writing HTML faster.
Brackets – A modern text editor made specifically for web development.
Atom – A text editor with an IDE integration.
Sublime – A popular lightweight cross-platform text editor.
JetBrains – A commercial IDE which provides solutions for almost every language/framework.
Microsoft’s Visual Studio – A cross-platform open source text editor developed by Microsoft.
KDevelop – An open source cross-platform IDE.
Geany IDE – A free lightweight cross-platform IDE.
Ajunta DeveStudio – A simple Gnome IDE which supports multiple languages.
GNAT Programming Studio – A free and easy to use IDE mainly for developers to interact with their code.
Qt Creator – A cross-platform IDE which is not free.
Emacs Editor – A free, powerful, highly extensible and customizable, cross-platform text editor.
VI/VIM Editor – A free, powerful, popular and highly configurable text editor.
Image Editors
GIMP – An open source GNU image manipulation program.
Pinta – The Linux version of windows paint.
DigiKam – An open source photo editing app meant for photographers.
ShowFOTO – A free standalone image editor with powerful image editing tools.
RawTherapee – A free image editing app for optimizing photos.
Fotoxx – An open source photo collection manager which can also be used for photo editing.
F-spot – An open source image editing app for Gnome desktops.
UFRaw – An app which reads and edits RAW image files.
GTKRawGallery – An open source image editing app mainly used for retouching.
LightZone – A free open source image editing app mainly used by photographers.
Pixeluvo – A powerful layer-based image editing app.
Photivo – An open source image editing software for Linux systems.
AfterShot Pro – A powerful and highly customizable photo management app.
Darktable – An open source image editing app which can be used to make RAW files.
Linux Shells
Bash Shell – The default shell found in most Linux systems today.
Tcsh/Csh Shell – An interactive login shell and shell script command processor.
Ksh Shell – A powerful and complete Linux shell.
Zsh Shell – An interactive Linux shell with features from other shells like BASH shell.
Fish Shell – A fully interactive and user-friendly shell.
Log Management
Graylog 2 – An open source log management app with administrative functions.
Logcheck – An open source security log management app.
Logwatch – A highly customizable Linux based log management app which can be used for analyzing and reporting.
Logstash – An open source Linux based data logging and collection app.
Markdown Editors
Atom – A powerful open source highly customizable text editor with IDE support.
GNU Emacs – A popular editor which can be used for writing Markdown.
Remarkable – A best markdown editor for Linux and Windows systems.
Haroopad – An open source cross-platform markdown editor with document processing.
ReText – A simple Markdown editor common in Linux systems.
UberWriter – A feature rich markdown editor for Linux systems.
Mark My Words – A lightweight yet powerful markdown which is relatively new.
Vim-Instant-Markdown – An open source text editor that can be used to write Markdown.
Bracket-Markdown – An open source cross-platform Markdown editor.
SublimeText-Markdown – A popular lightweight editor used to write Markdown.
Mail Transfer Agents
Sendmail – A popular mail transfer agent found on Linux servers.
Postfix – A free and open-source mail transfer agent that routes and delivers electronic mail.
Exim – A free mail transfer agent developed for Unix systems.
Qmail – An open source modern Linux mail transfer agent.
Mutt – A command line based mail transfer agent for Unix systems.
Alpine – A command line based mail transfer agent for Linux systems.
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Credit: Thanks to luongvo209 for creating this idea and compiling a list on GitHub. We have covered apps here which are not present in the original article. So, this page is pretty much a fork of his and and it is curated by Ravi Saive, CEO of FossMint and TecMint, and Martins Divine Okoi, Editor-in-chief of FossMint.