An open API service indexing awesome lists of open source software.

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Tuya

Tuya Smart is a leading global IoT Cloud Platform that build an IoT developer ecosystem, enabling everything to be smart.

428 repositories - github.com/tuya

ZX Spectrum

An 8-bit personal home computer developed by Sinclair Research and Britain's best-selling microcomputer.

spectrum speccy spectrum-zx zxspectrum spectrumzx sinclair sinclair-spectrum amstrad-cpc commodore-64 bbc-micro spectrum-next

428 repositories - en.wikipedia.org/wiki/Action-adventure_game

V

Simple, Fast, Safe, Compiled Language for Developing Maintainable Software.

v-lang vlang v-language language c c-plus-plus go rust

425 repositories - github.com/vlang/v

Wagtail

Wagtail is an open source CMS written in Python and built on the Django web framework.

wagtail-cms django python

416 repositories - en.wikipedia.org/wiki/Wagtail_(CMS) - github.com/wagtail

Lean

Lean is a theorem prover and programming language.

406 repositories - en.wikipedia.org/wiki/Lean_(proof_assistant) - github.com/leanprover/lean

visionOS

visionOS is Apple's spatial computing operating system.

398 repositories - en.wikipedia.org/wiki/VisionOS

Flipper Zero

A hardware security module for your pocket.

396 repositories - en.wikipedia.org/wiki/Flipper_Zero - github.com/flipperdevices

Sidekiq

Simple, efficient background processing for Ruby.

resque activejob delayed-job

396 repositories - en.wikipedia.org/wiki/Sidekiq - github.com/mperham/sidekiq

Inkscape

Inkscape is an open-source vector graphics editor used to create vector images, primarily in the SVG format.

svg

395 repositories - en.wikipedia.org/wiki/Inkscape

egui

egui (pronounced "e-gooey") is a simple, fast, and highly portable immediate mode GUI library for Rust.

egui-rs egui-rust iced iced-rs

391 repositories - github.com/emilk/egui/

PSR-15: HTTP Server Request Handlers

PSR-7 is a set of common interfaces representing HTTP server request handlers, and HTTP server middleware components.

psr psr-7

387 repositories

Chaos Engineering

The process of testing distributed computing systems to ensure that they can withstand unexpected disruptions.

sre testing

384 repositories - en.wikipedia.org/wiki/Chaos_engineering

tower-defense

A genre of video game.

381 repositories - en.wikipedia.org/wiki/Tower_defense

Sailfish OS

A Linux-based mobile operating system.

sailfish-os qt

381 repositories - en.wikipedia.org/wiki/Sailfish_OS - github.com/sailfishos

aurelia

A next generation JavaScript client framework that leverages simple conventions to empower your creativity.

angular react vue vuejs inferno mithril ember durandal meteor meteorjs

380 repositories - github.com/aurelia/aurelia

IIIF

IIIF is a set of open standards for delivering high-quality, attributed digital objects online at scale.

graphics api digital-humanities

378 repositories - en.wikipedia.org/wiki/International_Image_Interoperability_Framework

Vysoké učení technické v Brně

Vysoké učení technické v Brně (VUT), a Czech university of technical, economic and artistic studies.

vutbr brno-university-of-technology university education vut-fit

375 repositories - en.wikipedia.org/wiki/Brno_University_of_Technology

Deta

Projects using serverless hosting or NoSQL Databases by Deta.

367 repositories - github.com/deta/

Product Management

Product management is the planning, production, marketing, and tasks related to the creation and distribution of a product.

366 repositories - en.wikipedia.org/wiki/Product_management

Geometry Dash

Open source Projects relating to the Video Game 'Geometry Dash'.

366 repositories - en.wikipedia.org/wiki/Geometry_Dash

Blockly

A drag-n-drop library by Google.

362 repositories

Photogrammetry

Photogrammetry refers to the techniques of obtaining physical mesurements through the process of interpreting images.

computer-vision structure-from-motion

362 repositories - en.wikipedia.org/wiki/Photogrammetry

ZEIT

A company that builds tools that make cloud computing as easy and accessible as mobile computing.

357 repositories - github.com/zeit

ASGI

Asynchronous Server Gateway Interface.

wsgi server asynchronous asgiref python web

356 repositories

Fable

Fable is an F#-to-Javascript transpiler.

elmish fsharp

354 repositories - github.com/fable-compiler

OpenFaaS

OpenFaaS - Serverless Functions Made Simple.

351 repositories - github.com/openfaas/faas

DuckDuckGo

DuckDuckGo is an Internet search engine that prioritizes privacy by not tracking users.

344 repositories - en.wikipedia.org/wiki/DuckDuckGo - github.com/duckduckgo

Zero-knowledge proof

ZKP allows one party to prove a statement to another party without revealing any information about that statement.

zkps zkproof zero-knowledge-proofs cryptography zk

343 repositories - en.wikipedia.org/wiki/Zero-knowledge_proof

reMarkable tablet

The reMarkable tablets are note-taking devices featuring an e-ink screen, a touchscreen, and a pen digitizer.

eink ebook-reader

340 repositories - en.wikipedia.org/wiki/ReMarkable - github.com/reMarkable

Discord Bots (Extensions)

Discord Bots are extensions for the Discord chat app.

336 repositories - github.com/discord

EPICS

A set of applications and network protocols for control systems.

scada

334 repositories - en.wikipedia.org/wiki/EPICS - github.com/epics-extensions

NEO

A distributed network for the Smart Economy.

blockchain cryptocurrency

330 repositories - en.wikipedia.org/wiki/NEO_(cryptocurrency) - github.com/neo-project

turn-based

A genre of video game.

turn-based-game turn-based-tactics turn-based-strategy

329 repositories

Red

Red is a next-gen programming language, strongly inspired by REBOL.

red-language language rebol

327 repositories - github.com/red/red

MLX

An array framework for Apple silicon.

321 repositories

PSR-11: Container interface

PSR-11 is a set of common interfaces for dependency injection containers.

psr service-locator dependency-injection dependency-injection-container service-container di-container container-interop

319 repositories

Cloud Run

Cloud Run is a fully-managed container platform with a simple developer experience.

319 repositories - github.com/GoogleCloudPlatform

ImageJ

ImageJ is an open source image processing program designed for scientific multidimensional images.

317 repositories - en.wikipedia.org/wiki/ImageJ - github.com/imagej/imagej

NetBox

NetBox is an IPAM & DCIM tool intended to serve as the Source of Truth for the datacenter infrastructure technology.

netbox-plugin

312 repositories - github.com/netbox-community/netbox

oculus

Oculus is a VR headset, and relates to creating games for the platform.

310 repositories - en.wikipedia.org/wiki/Reality_Labs

Apple Music

Apple Music is a music streaming service developed by Apple.

apple apple-music-api

309 repositories - en.wikipedia.org/wiki/Apple_Music

Backbone.js

Backbone.js is a JavaScript library for building modern web apps and services.

backbone javascript mvc underscore routing jquery

306 repositories - en.wikipedia.org/wiki/Backbone.js

ReactPHP

ReactPHP is a library that allows event-driven, non-blocking I/O with PHP.

php

301 repositories - github.com/reactphp

Ethereum Name Service (ENS)

ENS is a name service build on Ethereum.

ethereum blockchain cryptocurrency

299 repositories - github.com/ensdomains

Fluent Design System

Fluent Design is a design language developed by Microsoft.

296 repositories - en.wikipedia.org/wiki/Fluent_Design_System

Altium Designer

Altium Designer is a PCB and electronic design automation software package for printed circuit boards.

295 repositories - en.wikipedia.org/wiki/Altium_Designer

Guzzle

Guzzle, an extensible PHP HTTP client.

psr-7 httpclient http-client curl

293 repositories - github.com/guzzle/guzzle

AT Protocol

The AT Protocol is a protocol and open standard for decentralized social networking services.

decentralized protocol social-network atprotocol bluesky bluesky-api bluesky-bot bluesky-clients bluesky-social

292 repositories - en.wikipedia.org/wiki/AT_Protocol - github.com/bluesky-social/atproto

Touhou Project

Touhou Project is a bullet hell shoot 'em up video game series.

touhou-project

290 repositories - en.wikipedia.org/wiki/Touhou_Project

Apache Pulsar

Pulsar is a distributed pub-sub messaging platform with a very flexible messaging model and an intuitive client API.

apache-pulsar java cloud-native maven serverless

288 repositories - github.com/apache/pulsar

Reason

A new syntax and toolchain powered by the battle-tested language, OCaml.

reasonml ocaml javascript language react

282 repositories - en.wikipedia.org/wiki/Reason_(syntax_extension_for_OCaml) - github.com/facebook/reason

Global Game Jam

The Global Game Jam (GGJ) is the world's largest game jam event taking place around the world at physical locations.

globalgamejam ggj ggj2009 ggj2010 ggj2011 ggj2012 ggj2013 ggj2014 ggj2015 ggj2016 ggj2017 ggj2018 ggj2019 ggj2020 ggj2021 ggj2022 ggj2023 ggj2024 ludum-dare js13kgames game-off

281 repositories - en.wikipedia.org/wiki/Global_Game_Jam

Elite Dangerous

Elite Dangerous is a space flight simulation game.

elite-journal eddiscovery inara eddn edsm eliteapi frontier-api eddi

271 repositories - en.wikipedia.org/wiki/Elite_Dangerous

incremental-game

A genre of video game.

271 repositories - en.wikipedia.org/wiki/Incremental_game

Automaton

A machine designed to follow a precise sequence of instructions.

automata automatons finite-state-machine cellular-automaton

270 repositories - en.wikipedia.org/wiki/Automaton

mcfunction

A coding language for Minecraft commands.

minecraft minecraft-commands

269 repositories

Stimulus

A modest JavaScript framework for the HTML you already have.

268 repositories - github.com/hotwired/stimulus

Creative Commons License

The Creative Commons licenses are a collection of public copyright licenses that allow the reuse and redistribution of work.

267 repositories - en.wikipedia.org/wiki/Creative_Commons_license - github.com/creativecommons

TWRP (software)

Team Win Recovery Project (TWRP), pronounced "twerp", is an open-source software custom recovery image for Android-based devices.

267 repositories - en.wikipedia.org/wiki/TWRP_(software) - github.com/TeamWin

hms

HMS Core is an assortment of open device and cloud capabilities provided by HMS.

261 repositories - en.wikipedia.org/wiki/Huawei_Mobile_Services - github.com/HMS-Core

GNU General Public License

GNU General Public License is a free software license published by the Free Software Foundation.

261 repositories - en.wikipedia.org/wiki/GNU_General_Public_License

Highlight.js

Highlight.js is a syntax highlighter written in JavaScript.

256 repositories - github.com/highlightjs

OBO Foundry

The OBO Foundry is a community and infrastructure for life science ontologies and their best practices.

obo web-ontology-language owl owl-ontology

256 repositories - en.wikipedia.org/wiki/OBO_Foundry - github.com/OBOFoundry

MeiliSearch

MeiliSearch is an open source typo-tolerant search engine.

search-engine database site-search enterprise-search

255 repositories - github.com/meilisearch/meilisearch

Misskey

Misskey is open source software for free distributed microblogging network.

activitypub fediverse microblog social-network webfinger

255 repositories - en.wikipedia.org/wiki/Misskey - github.com/misskey-dev

fighting-game

A genre of video game.

beat-em-up

254 repositories - en.wikipedia.org/wiki/Fighting_game

Citizen science

Citizen science is a form of scientific research in which members of the public participate.

251 repositories - en.wikipedia.org/wiki/Citizen_science

WebAssembly

WebAssembly is a web standard that defines a binary format and an assembly-like text format for executable code in Web pages.

webassembly wasm javascript asmjs

248 repositories - en.wikipedia.org/wiki/WebAssembly - github.com/WebAssembly

Guild Wars 2

Guild Wars 2 is an MMORPG in the world of Tyria, following up the story from Guild Wars.

246 repositories - en.wikipedia.org/wiki/Guild_Wars_2

LineageOS

A free and open source operating system for smartphones and tablet computers.

246 repositories - en.wikipedia.org/wiki/LineageOS - github.com/LineageOS

Yu-Gi-Oh!

Yu-Gi-Oh! is a collectible card game developed and published by Konami.

yu-gi-oh game card-game

245 repositories - en.wikipedia.org/wiki/Yu-Gi-Oh!_Trading_Card_Game

Space Station 13

Space Station 13 is a 2D based role-playing multiplayer game running on BYOND.

space-station-13 byond byond-game-engine dreammaker dm game

241 repositories - en.wikipedia.org/wiki/Space_Station_13

Icon font

Icon fonts contain glyphs and symbols in place of textual letters.

240 repositories

OpenAL

OpenAL is a cross-platform audio API.

239 repositories - en.wikipedia.org/wiki/OpenAL

AssemblyScript

TypeScript to WebAssembly compiler.

as typescript webassembly

238 repositories - github.com/AssemblyScript/assemblyscript

Riot Games

Riot Games, Inc. is an American video game developer, publisher and esports tournament organizer.

riotgames riot-games-api riotgames-api league-of-legends legends-of-runeterra teamfight-tactics valorant

236 repositories - en.wikipedia.org/wiki/Riot_Games - github.com/RiotGames

Panic Playdate

Playdate by Panic is a handheld video game console, with free SDK and sideloading.

panic-playdate playdate-console game-development

232 repositories - en.wikipedia.org/wiki/Playdate_(console)

Nextra

Nextra is a simple, powerful and flexible site generation framework built with next.js.

nextjs mdx markdown

232 repositories - github.com/shuding/nextra

Nintendo 3DS Homebrew

3DS Homebrew is the task of producing and running custom code for the Nintendo 3DS system.

nintendo-3ds-homebrew 3ds-custom-firmware custom-firmware nintendo-3ds

232 repositories - en.wikipedia.org/wiki/Homebrew_(video_games)#3DS

Portugol

Also known as Structured Portuguese, is a pseudocode written in portuguese.

pseudocode

228 repositories - pt.wikipedia.org/wiki/Portugol

OpenUI5

OpenUI5 is a JavaScript application framework designed to build cross-platform, responsive, enterprise-ready applications.

227 repositories - en.wikipedia.org/wiki/OpenUI5

Internet Engineering Task Force (IETF)

The IETF is an open international group concerned with the development and promotion of standards.

227 repositories - en.wikipedia.org/wiki/Internet_Engineering_Task_Force - github.com/ietf

Declarative programming

A style of solving problems by describing the target state instead of specifying the concrete steps.

declarative-language imperative-programming imperative-language

222 repositories

racing-game

A genre of video game.

221 repositories - en.wikipedia.org/wiki/Racing_video_game

Common Workflow Language

Open standards for declarative descriptions of tools and workflows.

220 repositories - en.wikipedia.org/wiki/Common_Workflow_Language - github.com/common-workflow-language

Effector

Effector is an effective multi-store state manager for JavaScript applications.

effectorjs effector-js react javascript typescript

220 repositories - github.com/effector/effector

AsyncAPI Specification

The AsyncAPI Specification is a specification for describing, producing, consuming, and visualizing event-driven services.

aas async-api asyncapi-specification async-api-specification asyncapi-spec async-api-spec json-schema eda event-driven event-driven-architecture avro openapi

220 repositories - github.com/asyncapi/spec

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