🇯🇵 Japan Organizations doing Open Source

Leading organizations in the Japan driving open source projects.

Developers

27,353

Organizations

2,494

Repositories

234,233

Top Rank

Ruby, Scala, Go

🇯🇵 Made in Japan Compare with other countries 🌐 All countries

TOP Organizations

1
The Ruby Programming Language (@ruby)

ruby

Ruby, C, TypeScript
41,093
star
2
Cysharp, Inc. (@Cysharp)

Cysharp

C#, Rust, JavaScript
25,570
star
3
LINE (@line)

line

Python, JavaScript, Go
20,066
star
4
STF (@openstf)

openstf

JavaScript, Makefile, CoffeeScript
17,656
star
5
Unity Technologies Japan (@unity3d-jp)

unity3d-jp

C#, C++, JavaScript
13,159
star
6
Sony (@sony)

sony

Python, C++, JavaScript
12,197
star
7
Machine Learning Tokyo (@Machine-Learning-Tokyo)

Machine-Learning-Tokyo

Jupyter Notebook, Python, HTML
8,609
star
8
O'Reilly Japan (@oreilly-japan)

oreilly-japan

Python, Jupyter Notebook, JavaScript
8,220
star
9
Clipy Project (@Clipy)

Clipy

Swift, HTML
7,820
star
10
JPCERT Coordination Center (@JPCERTCC)

JPCERTCC

Python, HTML, C++
6,291
star
11
PokéAPI (@PokeAPI)

PokeAPI

JavaScript, Python, Shell
6,187
star
12
CotEditor Project (@coteditor)

coteditor

AppleScript, Python, Swift
6,112
star
13
Tonari, Inc (@tonarino)

tonarino

Rust, TypeScript, C
5,343
star
14
@DroidKaigi

DroidKaigi

Kotlin, HTML
5,273
star
15
@Splidejs

Splidejs

TypeScript
5,128
star
16
Recruit Lifestyle Co. Ltd. (@recruit-lifestyle)

recruit-lifestyle

Swift, Java, Shell
5,003
star
17
Frontend Armory (@frontarm)

frontarm

JavaScript, TypeScript, HTML
4,976
star
18
Yahoo! JAPAN (@yahoojapan)

yahoojapan

Java, Shell, Go
4,676
star
19
@DeNA

DeNA

Ruby, Go, Python
4,399
star
20
@VOICEVOX

VOICEVOX

Python, TypeScript, Rust
4,394
star
21
MIXI, Inc. (@mixi-inc)

mixi-inc

JavaScript, Objective-C, Java
4,358
star
22
Hatena Co., Ltd. (@hatena)

hatena

Perl, JavaScript, Go
4,052
star
23
Fontworks Inc. (@fontworks-fonts)

fontworks-fonts

Python
3,906
star
24
Ariga (@ariga)

ariga

Go, Python, HCL
3,864
star
25
pixiv Inc. (@pixiv)

pixiv

TypeScript, JavaScript, Go
3,641
star
26
@Wizcorp

Wizcorp

JavaScript, Objective-C, Java
3,599
star
27
Best of JavaScript (@bestofjs)

bestofjs

JavaScript, TypeScript, Astro
3,507
star
28
CodeLibs Project (@codelibs)

codelibs

Java, Shell, Dockerfile
3,412
star
29
@appleple

appleple

JavaScript, PHP, TypeScript
3,186
star
30
chakki (@chakki-works)

chakki-works

Python, Jupyter Notebook, Java
3,169
star
31
Bandai Namco Research Inc. (@BandaiNamcoResearchInc)

BandaiNamcoResearchInc

Python
3,143
star
32
XDSPACE (@xdspacelab)

xdspacelab

2,969
star
33
ESDoc (@esdoc)

esdoc

JavaScript
2,940
star
34
GOODWITH LLC (@goodwithtech)

goodwithtech

Go, Shell, Dockerfile
2,724
star
35
Recruit Co.,Ltd (@recruit-mp)

recruit-mp

Java, Objective-C, Swift
2,653
star
36
@vim-jp

vim-jp

Vim Script, C, JavaScript
2,518
star
37
アスキードワンゴ編集部 (@asciidwango)

asciidwango

Python, Java, JavaScript
2,486
star
38
時雨堂 (shiguredo) (@shiguredo)

shiguredo

C++, Erlang, TypeScript
2,396
star
39
Wantedly, Inc. (@wantedly)

wantedly

Ruby, Go, TypeScript
2,349
star
40
Cybozu Go (@cybozu-go)

cybozu-go

Go, Makefile
2,251
star
41
Rakuten Group, Inc. (@rakutentech)

rakutentech

Go, Python, Ruby
2,227
star
42
GoJP (@gojp)

gojp

Go
2,197
star
43
CyberAgent Game & Entertainment (@CyberAgentGameEntertainment)

CyberAgentGameEntertainment

C#, Go, C++
2,075
star
44
TIER IV, Inc. (@tier4)

tier4

C++, Python, CMake
2,017
star
45
SmartHR, Inc. (@kufu)

kufu

Ruby, TypeScript, JavaScript
1,841
star
46
Gfriends (@gfriends)

gfriends

JavaScript, Python
1,789
star
47
KAYAC (@kayac)

kayac

Go, JavaScript, C#
1,755
star
48
@latonaio

latonaio

Go, Python, Makefile
1,754
star
49
Mackerel (@mackerelio)

mackerelio

Go, Ruby, Shell
1,749
star
50
Eureka (@eure)

eure

Swift, Go, Java
1,680
star
51
Silicon Studio Corporation (@SiliconStudio)

SiliconStudio

1,615
star
52
ax Inc. (@axinc-ai)

axinc-ai

Python, Rust, C++
1,583
star
53
Indie Visual Lab (@IndieVisualLab)

IndieVisualLab

C#, C++, JavaScript
1,574
star
54
WESEEK, Inc. (@weseek)

weseek

JavaScript, Dockerfile, TypeScript
1,566
star
55
ServerlessOperations (@serverless-operations)

serverless-operations

JavaScript, TypeScript, Python
1,535
star
56
Studio Ousia (@studio-ousia)

studio-ousia

Python, Cython, Jupyter Notebook
1,528
star
57
Yamagishi and Echizen Laboratories, National Institute of Informatics (@nii-yamagishilab)

nii-yamagishilab

Python, Jupyter Notebook, Shell
1,513
star
58
Vector Data as a Service (@vdaas)

vdaas

Go, Java, HTML
1,510
star
59
NTT OSS Center DBMS Development and Support Team (@ossc-db)

ossc-db

C, Java, PLpgSQL
1,497
star
60
YCAMInterLab (@YCAMInterlab)

YCAMInterlab

C++, JavaScript, Vue
1,493
star
61
Idein Inc. (@Idein)

Idein

Python, Rust, Dockerfile
1,492
star
62
Authlib (@authlib)

authlib

Python
1,468
star
63
KLab Inc. (@KLab)

KLab

Python, C#, C
1,457
star
64
Typlog (@typlog)

typlog

CSS, Jinja, Nunjucks
1,453
star
65
Remote in Japan (@remote-jp)

remote-jp

Ruby
1,442
star
66
Nulab Inc (@nulab)

nulab

JavaScript, Scala, TypeScript
1,428
star
67
@FlutterGen

FlutterGen

Ruby, Dart
1,357
star
68
uPhyca, Inc. (@uPhyca)

uPhyca

Java, Groovy
1,349
star
69
KORG INC. (@korginc)

korginc

C, Roff
1,340
star
70
HeteroDB,Inc (@heterodb)

heterodb

C, Shell
1,332
star
71
Jasper (@jasperapp)

jasperapp

CSS, TypeScript
1,317
star
72
Tilfin Ltd. (@tilfinltd)

tilfinltd

TypeScript, HTML, JavaScript
1,274
star
73
Teamcraft (@ffxiv-teamcraft)

ffxiv-teamcraft

TypeScript, JavaScript, Go
1,247
star
74
Recruit Holdings. Media Technology Lab (@recruit-mtl)

recruit-mtl

Objective-C, Java, Swift
1,230
star
75
CAM, LTD. (@cam-inc)

cam-inc

TypeScript, JavaScript, Java
1,226
star
76
Qiita Inc. (@increments)

increments

Ruby, CSS, JavaScript
1,225
star
77
Egison (@egison)

egison

Haskell, Shell, Jupyter Notebook
1,224
star
78
Information Access Division, Geospatial Information Authority of Japan (@gsi-cyberjapan)

gsi-cyberjapan

JavaScript, HTML, Python
1,185
star
79
PicoRuby (@picoruby)

picoruby

Ruby, C, HTML
1,173
star
80
@unvell

unvell

C#
1,164
star
81
ICS INC. (@ics-creative)

ics-creative

JavaScript, TypeScript, HTML
1,142
star
82
@Live2D

Live2D

C#, C++, TypeScript
1,138
star
83
@textlint-ja

textlint-ja

JavaScript, TypeScript
1,101
star
84
YUMEMI Inc. (@yumemi-inc)

yumemi-inc

TypeScript, Swift, Shell
1,098
star
85
Jubatus (@jubatus)

jubatus

Python, C++, Scala
1,051
star
86
An open tech group (@sjitech)

sjitech

Shell, JavaScript, Java
1,050
star
87
Recruit Co., Ltd. (@recruit-tech)

recruit-tech

JavaScript, TypeScript, Python
1,018
star
88
AzuyaLabs (@azuyalabs)

azuyalabs

PHP, Shell
1,015
star
89
アティリカ株式会社 (@atilika)

atilika

Java, HTML
976
star
90
PHP Mentors (@phpmentors-jp)

phpmentors-jp

PHP, Shell
970
star
91
Emacs JP (@emacs-jp)

emacs-jp

Emacs Lisp, TeX, Ruby
969
star
92
Language Media Processing Lab, Kyoto University (@ku-nlp)

ku-nlp

Python, Perl, C
967
star
93
Programming The Blockchain in C# (@ProgrammingBlockchain)

ProgrammingBlockchain

CSS, C#
951
star
94
Sparticle Inc. (@sparticleinc)

sparticleinc

JavaScript, Objective-C, TypeScript
947
star
95
Glory Lab (@glorylab)

glorylab

Dart
940
star
96
@vollib

vollib

Python, Java, JavaScript
937
star
97
Gengo (@gengo)

gengo

Python, Go, Ruby
920
star
98
CyberAgent AI Lab (@CyberAgentAILab)

CyberAgentAILab

Python, Jupyter Notebook, TypeScript
891
star
99
YassLab Inc. (@yasslab)

yasslab

Ruby, JavaScript, HTML
890
star
100
@SwiftFiddle

SwiftFiddle

Markdown, Swift, TypeScript
880
star

Statistics

By location

Osaka 9.9%
Kyoto 9.8%
Yokohama 8.6%
Fukuoka 7.2%
Nagoya 4.5%
Other 59.9%

By programing language

JavaScript
18.9%
Python
14.8%
Ruby
7.5%
TypeScript
7.0%
C++
6.0%
Other
45.9%

World rating by programing language (country/rank)

Ruby
3
Scala
5
Go
6
Swift
6
Vue
6

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