• Cross-platform free software (5 C, 519 P)

*

• Cross-platform desktop-apps development (1 C, 4 P)

C

• COBOL (43 P)
• Cross-platform mobile software (23 P)

E

• Electron (software framework) (5 P)

F

• Firebird (database server) (4 P)

I

• Interbase (3 P)

J

• Java platform software (10 C, 47 P)

K

• KDE software (6 C, 36 P)

M

• Microsoft Office (5 C, 95 P)

O

• Oracle Database (1 C, 6 P)

P

• Platform virtualization software (3 P)
• Platform-sensitive development (6 P)

Q

• Qt (software) (2 C, 21 P)

R

• Rexx (15 P, 1 F)
• Rust (programming language) (1 C, 6 P)

S

• SQLite (1 C, 4 P)

V

• Vulkan (API) (1 C, 3 P)

W

• Cross-platform web browsers (2 C, 28 P)
• Web conferencing (1 C, 55 P)
• WxWidgets (1 C, 12 P)

• Cross-platform software

.

• .NET
• .NET Framework

0–9

• 4th Dimension (software)

A

• A-Frame (software)
• ABAP
• Adaptive Communication Environment
• Adaptxt
• Adminer
• Adobe AIR
• Adobe Animate
• Adobe Scout
• AgentSheets
• AIM (software)
• AirSim
• Allegro (software library)
• Almquist shell
• Angband (video game)
• ANGLE (software)
• Apache Flex
• Apache Groovy
• Apache Lucene
• Apache Marmotta
• Apache OpenNLP
• Apache Stanbol
• AppBlock
• Arattai
• ArkTS
• AspectJ
• AssemblyScript
• AstroPrint
• AWK
• Ayttm

B

• B1 Free Archiver
• Babylon.js
• Backdrop CMS
• Bale Messenger
• Beonex Communicator
• BHIM
• BigBlueButton
• Bing Mobile
• Biopac student lab
• BiP (software)
• Blazor
• Blend4Web
• BlueGriffon
• BNB Smart Chain (blockchain platform)
• Bochs
• Bootstrap Studio
• BusKill
• Bzip2

C

• C++
• C (programming language)
• Camo (app)
• Camunda
• Canary Mail
• Cangjie (programming language)
• Carbon (programming language)
• Cardano (blockchain platform)
• Castor (framework)
• Cataclysm: Dark Days Ahead
• CDWinder
• CEGUI
• Centericq
• ChatON
• ChatZilla
• Chromium B.S.U.
• ChucK
• Ciao (programming language)
• ClanLib
• Climm
• Clojure
• Clonezilla
• COBOL
• Code::Blocks
• CodeLite
• Codename One
• CodeWarrior
• Collabora Online
• Colored Coins
• Common Lisp
• Comparison of user features of messaging platforms
• CopperLicht
• Couchbase Server
• Apache CouchDB
• Cryptlib
• Crystal (programming language)
• Crystal Space
• CUBRID

D

• D (programming language)
• The DAO
• DataFlex
• IBM Db2
• Dc (computer program)
• Decentraland
• Deluge (software)
• Dia (software)
• Digital Darkroom
• DISLIN
• Distcc
• DIVA-GIS
• DMDE
• DocFetcher
• Doxygen
• Dradis Framework
• DragonRAD
• Dropbox Carousel
• Dropship (software)
• Drupal
• DuckDB
• DXVK
• Dylan (programming language)

E

• Easy Java Simulations
• Easyrec
• Edinburgh Compatible Context Editor
• EDonkey2000
• Edu-sharing
• Electron (software framework)
• Element (software)
• Elements (toolchain)
• Embedded Wizard
• Emby
• Emdebian Grip
• Emergent Coding
• Enlightenment Foundation Libraries
• Enpass
• EnterpriseDB
• Etcher (software)
• Ethereum
• Ethereum Classic
• Euphoria (programming language)
• Exim
• Ezhil (programming language)

F

• FAAC
• Feature Selection Toolbox
• Fedora Media Writer
• FIGlet
• FileMaker
• FileZilla
• Firebird (database server)
• FLAC
• Adobe Flash
• FlipaClip
• FlipFactory
• FlyEnv
• Folding@home
• Foswiki
• Fotor
• Fraunhofer FDK AAC
• Free Pascal
• FreeArc
• Freeciv
• Freedup
• Freeseer
• Frink (programming language)

G

• Gauge (software)
• GDAL
• Gecko (software)
• General Graphics Interface
• GetSimple CMS
• Ghostscript
• GiFT
• GitHub
• GIWS (software)
• GLFW
• GlTF
• Gmail
• GNU Bison
• GNU Libtool
• GNU nano
• GNU Privacy Guard
• GNU Units
• GnuCash
• Gnumeric
• Go (programming language)
• Godot (game engine)
• Google Allo
• Google Apps Script
• Google Chat
• Google Duo
• Google Hangouts
• Google Meet
• Google Photos
• GraalVM
• Gradle
• GRASS GIS
• Gregorio (software)
• Gretl
• Gtk-gnutella
• GTK
• Guitar Pro
• Gwyddion (software)
• Gzip

H

• Hammerkit
• Hollywood (programming language)
• HomeBank
• Hooked (app)
• Hyperbridge
• Hyphanet

I

• I2P