Best on the Web

Best Operating System

1.   Linux  

Best Desktop Distribution

1.   Debian  
2.   Slackware  
3.   Rocky Linux  

Best Mobile Phone Distribution

1.   LineageOS  

Best Handheld Computer Distribution

1.   HoloISO  
2.   ChimeraOS  
3.   winesapOS  

Best Office Suite

1.   LibreOffice  

Best Accounting Software

1.   GnuCash  

Best eBook Reader

1.   Calibre  
2.   Evince  
3.   Okular  
4.   Foliate  

Best Educational Software Suite

1.   GCompris  
2.   Etoys  
3.   OpenTeacher  

Best Astronomy Software

1.   Celestia  
2.   Stellarium  
3.   KStars  

Best Biology Program

1.   UGENE  
2.   Genome Workbench  

Best Chemistry App

1.   Avogadro  
2.   PyMOL  
3.   Kalzium  

Best Electronics Circuit Designer

1.   KiCad  
2.   Fritzing  
3.   LibrePC  

Best Engineering Data Visualization and Analysis

1.   Scilab  
2.   LabPlot  

Best Flash Card Software

1.   Anki  

Best Genealogy Family Tree Maker

1.   Gramps  

Best Geography Program

1.   Marble  
2.   KGeography  

Best Geology Program

1.   GPlates  
2.   Quantum GIS  

Best Geometry Program

1.   Kig  

Best Language Learning Tool

1.   KBruch  
2.   Artikulate  
3.   Parley  

Best Math Tutor

1.   KBruch  
2.   GeoGebra  

Best Mathematical 3D Modeling and Visualization

1.   GNU Octave  
2.   K3DSurf  

Best Physics Simulator

1.   Step  
2.   Elmer  

Best Plastic Virtual Bricks Model Builder

1.   LeoCAD  

Best Rocket Builder and Simulator

1.   OpenRocket  

Best Music Teaching Tool

1.   Minuet  
2.   LenMus Phonascus  
3.   Nootka  

Best Music Score Editor

1.   MuseScore  
2.   Rosegarden  
3.   Canorus  

Best Audio Editor

1.   Audacity  

Best Digital Audio Workstation

1.   Ardour  
2.   LMMS  
3.   Qtractor  

Best Video Recording and Streaming

1.   OBS Studio  

Best Media Player

1.   VLC  
2.   SMPlayer  

Best Home Theater Media Center

1.   Kodi  

Best Multimedia Video Editor

1.   KDENlive  
2.   OpenShot  
3.   Flowblade  

Best Font Designer and Editor

1.   FontForge  

Best Raster Image and Photo Editor

1.   Gimp  

Best Scalable Vector Graphics Editor

1.   Inkscape  
2.   sK1  

Best Home Design and Floor Plan Maker

1.   Sweet Home 3D  

Best 3D CAD Software

1.   FreeCAD  
2.   BRL-CAD  

Best 3D Content Creation Suite

1.   Blender  

Best 3D Game Engines

1.   Godot  
2.   Defold  
3.   Torque 3D  

Best 3D Flight Simulator

1.   FlightGear  

Best 3D Spaceship Combat Game

1.   AstroMenace  

Best 3D Steampunk Stealth Game

1.   The Dark Mod  

Best Arcade Puzzle Game

1.   Pingus  

Best Block-based World Building Game

1.   Minetest  

Best Chess Game

1.   DreamChess  

Best City Planning Sim

1.   OpenTTD  
2.   LinCity-NG  
3.   Simutrans  
4.   Micropolis  

Best Dance Pad Game

1.   StepMania  

Best Guitar Jamming Game

1.   Frets on Fire X  

Best Jump-n-Run Sidescroller

1.   SuperTux  
2.   Secret Maryo Chronicles  
3.   Open Surge  

Best Racing Game

1.   SuperTuxKart  
2.   Stunt Rally  
3.   Extreme Tux Racer  
4.   VDrift  

Best Retro Multi-player Battle Royale

1.   Teeworlds  
2.   Hedgewars  

Best Real Time Strategy Empire-Building Game

1.   0 A.D.  
2.   MegaGlest  
3.   Widelands  
4.   Unknown Horizons  

Best Sci-Fi Real Time Strategy

1.   Zero-K  
2.   Beyond All Reason  
3.   OpenHV  
4.   Warzone 2100  
5.   Star Ruler 2  

Best Sing-a-Long Game

1.   UltraStar Deluxe  

Best Space Sim

1.   Vega Strike  
2.   Endless Sky  
3.   Oolite  
4.   Pioneer  

Best Tank Game

1.   BZFlag  

Best Turn-based Strategy Game

1.   Battle for Wesnoth  
2.   FreeOrion  
3.   Freeciv  

Best Multimedia Transcoding and Conversion Tool

1.   HandBrake  

Best Data Compression Utility

1.   PeaZip  
2.   gzip  

Best Data Encryption Utility

1.   VeraCrypt  

Best GPS Navigation App

1.   Navit  

Best Machine Virtualization Program

1.   VirtualBox  
2.   QEMU  

Best Password Manager

1.   KeePass  

Best Browser

1.   Tor Browser  
2.   Firefox  

Best Email Client

1.   Thunderbird  

Best File Transfer Client

1.   FileZilla  

Best Gemini Client

1.   Lagrange  

Best Git Client

1.   Gittyup  

Best Gopher Client

1.   Kristall  

Best IRC Client

1.   Pidgin  

Best P2P File Sharing Client

1.   qBittorrent  
2.   Deluge  

Best Packet Sniffer

1.   Wireshark  

Best SSH Client

1.   Remmina  
2.   PuTTY  
3.   OpenSSH  

Best UseNet News Reader

1.   Thunderbird  

Best Video Chat and Collaboration

1.   Jami  
2.   Element  
3.   Wire  
4.   OpenMeetings  

Best VNC Viewer

1.   Tigervnc  
2.   Remmina  
3.   MultiVNC  

Best VoIP Softphone

1.   Linphone  
2.   Yate  

Best VPN Software

1.   OpenVPN  
2.   WireGuard  
3.   strongSwan  
4.   Stunnel  

Best Search Engine

1.   DuckDuckGo  
2.   Startpage  
3.   Disconnect Search  

Best Online Dictionary

1.   Wiktionary  
2.   GNU Dico Web  

Best Online Encyclopedia

1.   Wikipedia  

Best Online Word Translator

1.   BabelNet  

Best Free Online Foreign Language Lessons

1.   My Languages  

Best Free Quick Study Foreign Language Phrasebooks

1.   Wikivoyage  

Best Free Online Education Courses

1.   Khan Academy  
2.   MIT OpenCourseWare  
3.   Cal Poly Humboldt OER  

Best Free eBooks

1.   Project Gutenberg  
2.   Z-Library  
3.   FreeComputerBooks  

Best Free Online Linux Training

1.   Linux Foundation  

Best Free Virtual Linux Practice Shells

1.   JSLinux  
2.   OnWorks  

Best Free Web Coding Tutorial and Reference

1.   W3Schools  

Best Free Dictionary Files

1.   FreeDict  

Best Free Clipart Images

1.   Public Domain Vectors  

Best Free Desktop Icons

1.   Icon Archive  

Best Free Fonts

1.   Font Library  

Best Free GPS Maps

1.   Open Street Map  

Best Free Photo Stock

1.   PxHere  
2.   Pixabay  

Best Free Music and Sheets

1.   Musopen  

Best Free Sound Bytes

1.   Free Sounds Library  

Best Free Wallpapers

1.   Cute Wallpaper  

Best Free Online ASCII Art Editor

1.   MonoSketch  

Best Free Online Image Editor

1.   OIE  
2.   Kapwing  

Best Free Online Home Design and Floor Plan Maker

1.   Sweet Home 3D  

Best Free Online HTML-CSS-JS Editor

1.   SimilarWeb  
2.   W3Schools  
3.   WISERBIT  

Best Free Online PDF Editor

1.   PDF24  

Best Free Online GUID Generator

1.   GUID Generator  

Best Free Online Graphing Calculator

1.   Desmos  

Best Free Online Statistics Software

1.   jamovi  

Best Free Online SIP VoIP Client

1.   sipML5  

Best Free Online Video Conference

1.   Jitsi Meet  
2.   Element Web  

Best Free Online IRC Client

1.   KiwiIRC  
2.   Mibbit  

Best Free Online Jabber XMPP Client

1.   Tigase  

Best Free Online Programming IDE

1.   Browxy  
2.   Gitpod  

Best Free Source Code Hosting

1.   GitLab  
2.   OSDN  
3.   Savannah  

Best Free SSL Public Certificate

1.   Let's Encrypt  
2.   FreeSSL  
3.   ZeroSSL  

Best Free SIP VoIP Account

1.   Linphone  
2.   Sip2Sip  
3.   AntiSip  
4.   OnSip  

Best Free VPN Service

1.   VPN Gate  

Best Free Public DNS Host Names

1.   Dynu  

Best Free Web Email Account

1.   Eclipso  

Best Free XMPP Account

1.   Sure.IM  
2.   yax.im