itch.io Spring Selects Series A
On Sale: GamesAssetsToolsTabletopComics
Indie game storeFree gamesFun gamesHorror games
Game developmentAssetsComics
SalesBundles
Jobs
Tags

Top ratedwith code under GNU General Public License v3.0 (GPL) (78 results)

Explore tools with code under GNU General Public License v3.0 (GPL) on itch.io · Upload your tools 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

A digital toolset for the LANCER TTRPG
Rated 5.0 out of 5 stars
(162 total ratings)
Simple normal map generator for 2D sprites!
Rated 5.0 out of 5 stars
(103 total ratings)
(WIP) A tool to create playable Rhythm Heaven custom remixes, with many customization options.
Rated 5.0 out of 5 stars
(85 total ratings)
Retro shaders on top of any Windows app
Rated 4.9 out of 5 stars
(57 total ratings)
Help in the evaluation of upscalers, upscan converters, line doublers and of course TV processing of 240p video.
Rated 5.0 out of 5 stars
(33 total ratings)
A tool to explore the game covers from the Famicase exhibition
Rated 4.9 out of 5 stars
(29 total ratings)
Run in browser
A mininal but complete colorpicker desktop app
Rated 5.0 out of 5 stars
(18 total ratings)
A JavaScript text adventure game engine
Rated 5.0 out of 5 stars
(16 total ratings)
Run in browser
Essential plugin for all Eli plugins in RPG Maker MV/MZ!
Rated 4.9 out of 5 stars
(24 total ratings)
An unofficial Android client for itch.io
Rated 4.8 out of 5 stars
(27 total ratings)
A project that showcases Godot's different Tween types with various examples!
Rated 5.0 out of 5 stars
(11 total ratings)
Run in browser
GB studio plugin to swap BG tiles.
Rated 5.0 out of 5 stars
(11 total ratings)
RetroBat is the best solution to play your ROMs collection on Windows !
Rated 4.7 out of 5 stars
(30 total ratings)
A lightweight yet highly customisable pngtuber app
Rated 4.9 out of 5 stars
(11 total ratings)
Convert & compress everything in 2 clicks!
Rated 4.8 out of 5 stars
(12 total ratings)
A Blender 3D add-on for CSG style level creation inspired by old-school level editors like Unreal 1&2 and DoomEd.
Rated 4.5 out of 5 stars
(31 total ratings)
Canvas Presets scripts made for Aseprite
Rated 5.0 out of 5 stars
(9 total ratings)
Your Ultimate Virtual Tabletop for Tabletop RPGs
Rated 4.6 out of 5 stars
(16 total ratings)
Procedural Spiral Generator
Rated 4.9 out of 5 stars
(7 total ratings)
Run in browser
Display your Nintendo games on Discord.
Rated 5.0 out of 5 stars
(6 total ratings)
A free, open source, crowdsourced GUI.
Rated 3.9 out of 5 stars
(19 total ratings)
Run in browser
A simple but elegant launcher for emulators and pc games
Rated 5.0 out of 5 stars
(5 total ratings)
Procedurally generate free pixel item icons.
Rated 4.5 out of 5 stars
(6 total ratings)
Run in browser
A Dungeon Crawler Designer for your GB Studio project!
Rated 4.8 out of 5 stars
(5 total ratings)
Run in browser
Play a common event every time the players close/exits the menu.
Rated 4.6 out of 5 stars
(5 total ratings)
Touchscreen Extension is a useful script for the Aseprite Software. It gives helpful shortcuts for PC Tablet owners.
Rated 5.0 out of 5 stars
(4 total ratings)
Procedural modeling in Blender using Node Editor
Rated 4.0 out of 5 stars
(6 total ratings)
Super simple tile-based level editor with layers, animations and events.
Rated 4.5 out of 5 stars
(4 total ratings)
Easily download and update Dedicated Server on your Root!
Rated 5.0 out of 5 stars
(3 total ratings)
Open source virtual desktop assistant in the form of Satanichia Kurumizawa Mcdowell
Rated 5.0 out of 5 stars
(3 total ratings)
Xylophone for kids
Rated 5.0 out of 5 stars
(3 total ratings)
Run in browser
Run any game (old or new) with any gamepad (old or new)
Rated 5.0 out of 5 stars
(3 total ratings)
Dialog Trees, Decision Trees, Behavior Trees, Pine Trees... one plugin for all of the above.
Rated 5.0 out of 5 stars
(3 total ratings)
A Gtk3 program to enable extreme cooling for Lenovo laptops on Linux
Rated 5.0 out of 5 stars
(3 total ratings)
An automatic music generator for your projects!
Rated 5.0 out of 5 stars
(3 total ratings)
Create and share visual novels without any programming skills!
Rated 4.3 out of 5 stars
(4 total ratings)
Loading more games...
itch.io now on YouTube!