Top free tools tagged Open Source

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Explore tools tagged Open Source on itch.io · Upload your tools to itch.io to have them show up here.

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Free and open source 2D and 3D game engine

Godot Engine

raylib

A simple and easy-to-use library to enjoy videogames programming.

Ray

SLK_img2pixel

Convert images/textures to pixel art

Lukas Holzbeierlein

GIF

Sprytile

A Blender add-on for building tile based low-poly scenes with paint/map editor like tools

Jeiel Aranal

Mitch

An unofficial Android client for itch.io

gardenapple

GIF

vdcrpt - video corruptor

Destroy videos in weird and interesting ways.

branchpanic

Tuesday JS visual novel engine

simple web-based free and open-source visual novel editor, it can be used in web browser.

Kirill Live

Run in browser

OGMO Editor

A free, open source, project oriented level editor made for indie game developers by indie game developers.

OGMO Editor

Modular Asset Staging Tool

Unity editor plugin for level design

Keith at Fertile Soil Productions

GIF

SpookyGhost

Open source procedural sprite animation

free pixelart editor

Run in browser

Nintendo Switch-styled launcher.

NinStar

Slime2 - Stream Widget Manager

Run local overlays and bots on your PC!

Zaytri

VideoGameCapture an alternative Capture card Software. OpenSource (GPLv3)

An alternative to the Elgato Game Capture Software for all Capture cards

ImmerNochNoah

OHRRPGCE

Official Hamster Republic Role Playing Game Construction Engine

James Paige / Bob the Hamster

Lightning Launcher

Sort, search, and launch all your Quest's apps and games.

Ethan M.

Zoner

A tool for building static blogs!

Ryan Trawick

Fractal Sound Explorer

Listen to fractals or just explore

CodeParade

ASCII Art Paint

The editor for ASCII-graphics, combining a graphical editor and an image to text converter.

Kirill Live

Run in browser

GIF

Ct.js game engine

Create cool 2D games with a free game maker!

Ct.js

Pitch – CSS Components and Tweaks for Your itch.io Pages

CSS components & tweaks to spice up your itch.io pages.

nnda

Run in browser

DOSBox Pure

DOSBox reimagined, with a friendly interface, ZIP loading and save states

Schelling

AnimeEffects

A simple 2D animation tool

Yukusai

Piano Trainer

A MIDI utility for learning scales, chords, and more!

ZaneH

Narrat

Narrat is an interactive fiction game engine

Liana

Linear Spectrum and Oscilloscope Visualizer

FOSS music visualization tool

Aaron F. Bianchi

Wicked Engine

3D engine with modern graphics

turanszkij

opti

simple, transparent media viewer

torcado

projectM Music Visualizer

Cross-platform music visualization. Open-source and Milkdrop-compatible

codav

WiPersona - PNGTuber on Web Browser

Run your PNGTuber / VTuber avatar with a web browser

ItsZariep

Run in browser

mspaintCompanion (Layers for MSPaint)

mspaintcompanion is a tool crafted from spite

Talon Zane

Ultimate 2D Platformer Controller - Godot 2D Character Controller

Make the perfect character for your 2D platformer in Godot! Try it out in this demo!

Noasey

Run in browser

Pocket Reader

Simple reader app for Playdate

Diefonk

Run in browser

Monologue - Dialogue Editor

A powerful dialogue editor for any game engine or programming language.

OneShrimpADay

PyNGtuber - a really personalizable PNGtuber App

A really personalizable PNGtuber app

Gemmstone

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Top freeToolsGamesToolsGame assetsComicsBooksPhysical gamesAlbums & soundtracksGame modsEverything elsetagged Open Source (500 results)

New itch.io is now on YouTube!

Top free
Games Tools Game assets Comics Books Physical games Albums & soundtracks Game mods Everything else
tagged Open Source (500 results)