Skip to main content

Browse GamesGame JamsUpload GameDeveloper LogsCommunity
Indie game storeFree gamesFun gamesHorror games
Game developmentAssetsComics
SalesBundles
Jobs
TagsGame Engines

Filter Results

(Clear)

Related collections

THNDs's Collection
THNDs
Wasted Audio
mosgaard
CGI / Blender Plugins
Three-eyed Rat
emulators
r37r0m0d3l
Hydrazoan's Collection
Hydrazoan

Top free
for Windows with code under GNU General Public License v3.0 (GPL) (136 results)

136 results

Explore tools for Windows with code under GNU General Public License v3.0 (GPL) on itch.io · Upload your tools for Windows with code under GNU General Public License v3.0 (GPL) to itch.io to have them show up here.

New itch.io is now on YouTube!

Subscribe for game recommendations, clips, and more

View Channel
ShaderGlass
Retro shaders on top of any Windows app
mausimus
Laigter
Simple normal map generator for 2D sprites!
azagaya
GIF
RahiTuber
A lightweight yet highly customisable pngtuber app
rahisaurus
COMP/CON
A digital toolset for the LANCER TTRPG
Massif PressVerified Account
VideoGameCapture an alternative Capture card Software. OpenSource (GPLv3)
An alternative to the Elgato Game Capture Software for all Capture cards
ImmerNochNoah
Our Paint
The node-based painting program
chengdulittlea
ZX Spectrum Game Maker
Tool for creating games for ZX Spectrum visually using Tiled and the ZX Drawer image editor.
Juntelart
DM Helper
Your Ultimate Virtual Tabletop for Tabletop RPGs
DM Helper
File Converter
Convert & compress everything in 2 clicks!
Tichau
AnimeEffects
A simple 2D animation tool
Yukusai
HeroQuest Card Creator
A tool to create heroquest cards
Mark
Run in browser
RetroBat
RetroBat is the best solution to play your ROMs collection on Windows !
RetroBat Team
Muser
An automatic music generator for your projects!
Jarisck
Gamepad Phoenix
Run any game (old or new) with any gamepad (old or new)
Schelling
Pesterchum godot
A (real) homestuck chat client
(lis)anne
Run in browser
IsoCON
3d virtual tabletop for tactical combat skirmish/TTRPGs
delzhand
PyNGtuber - a really personalizable PNGtuber App
A really personalizable PNGtuber app
Gemmstone
WiPersona - PNGTuber on Web Browser
Run your PNGTuber / VTuber avatar with a web browser
ItsZariep
Run in browser
GIF
Colorpicker
Modern and powerful color management software
toinane
MIDI2TDW
Convert MIDI files to Thirty Dollar Website songs
Xenon Neko
Impart
An open-source, fully offline gallery organization tool
Arastryx
Oscillody
Free Waveform Audio Visualizer
Akosmo
Server Creation Tool
Easily download and update Dedicated Server on your Root!
Zeromix
Fractal Music Generator
Application for audio / midi music from fractals.
BetaZeta
UniPCemu
A cycle-accurate PC emulator
Superfury1
MapNuke 2: Colossal Player Edition
An open-source map generator for Dominions 6
nuke
Spritesheet Companion
A free, browser-based tool to quickly rearrange, combine, and preview/save sprite sheets and animations.
IristoId
Run in browser
FunEmuStation Launcher - Frontend Emulation
A simple but elegant launcher for emulators and pc games
Danny Garay
Satania Buddy
Open source virtual desktop assistant in the form of Satanichia Kurumizawa Mcdowell
kdoll
NPainter (wip)
fast and simple painting software
mrgaturus
FilterJS
Create procedurally generated textures and photo filters
Cosmo Myzrail Gorynych
Ren'Py Analyser
Show the branches of your Ren'Py visual novel in a fancy graph! Online and offline version available
Amethysts
Sorcar
Procedural modeling in Blender using Node Editor
Punya Aachman
Game Map Editor
Super simple tile-based level editor with layers, animations and events.
ppelikan
Slate
Pixel art editor
mitchcurtis
GIF
Zentacle
Procedural Spiral Generator
ajkolenc
Run in browser
Loading more games...
Next page
itch.io now on YouTube!
AboutFAQBlogContact us
Copyright © 2026 itch corp · Directory · Terms · Privacy · Cookies