🇯🇵 Japan Organizations doing Open Source

Leading organizations in the Japan driving open source projects.

Developers

27,389

Organizations

2,494

Repositories

235,626

Top Rank

Ruby, Scala, Go

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

TOP Organizations

101
ROIS-DS Center for Open Data in the Humanities (@rois-codh)

rois-codh

Python
878
star
102
Groonga Project (@groonga)

groonga

Ruby, JavaScript, C
874
star
103
Internet Initiative Japan Inc. (@iij)

iij

C, Ruby, Go
862
star
104
Cybozu (@cybozu)

cybozu

Swift, TypeScript, Go
852
star
105
BlasTrain Co., Ltd. (@blastrain)

blastrain

Go, C++, TypeScript
844
star
106
GMO Pepabo, Inc. (@pepabo)

pepabo

Ruby, Go, CSS
844
star
107
Yenom - The simplest Bitcoin wallet - (@yenom)

yenom

Kotlin, Swift
842
star
108
@NtrQQ

NtrQQ

C++
820
star
109
Akatsuki Inc. (@aktsk)

aktsk

Go, Ruby, Python
809
star
110
@dwango

dwango

C#, JavaScript, Ruby
807
star
111
Joint Japanese-French Robotics Laboratory (@jrl-umi3218)

jrl-umi3218

C++, CMake, Python
791
star
112
Annict (@annict)

annict

Ruby, Dockerfile, JavaScript
785
star
113
M3, Inc. (@m3dev)

m3dev

Java, Python, Scala
782
star
114
RICOS Co. Ltd. (@ricosjp)

ricosjp

Rust, TeX, Python
772
star
115
Kamitani Lab (@KamitaniLab)

KamitaniLab

Python, MATLAB, Jupyter Notebook
771
star
116
AWA (@awa)

awa

Go
757
star
117
NTT Communications (@nttcom)

nttcom

Go, HTML, Python
754
star
118
Vue.js Japan User Group (@vuejs-jp)

vuejs-jp

Vue, JavaScript, TypeScript
740
star
119
MOEOVERFLOW (@moeoverflow)

moeoverflow

Python, C++, JavaScript
731
star
120
NTT Communication Science Laboratories (@nttcslab)

nttcslab

Python, MATLAB, Jupyter Notebook
729
star
121
amsl (@amslabtech)

amslabtech

C++, Python, CMake
726
star
122
LayerX (@LayerXcom)

LayerXcom

Rust, Python, JavaScript
724
star
123
Utsubo (@utsuboco)

utsuboco

TypeScript, JavaScript, Python
717
star
124
@ElinamLLC

ElinamLLC

C#
714
star
125
hachioji.pm (@hachiojipm)

hachiojipm

CSS, Perl, JavaScript
714
star
126
MAP IV (@MapIV)

MapIV

C++, Python
706
star
127
Alphaus (formerly Mobingi) (@mobingi)

mobingi

Go, PHP
703
star
128
codefirst.org (@codefirst)

codefirst

Ruby, JavaScript, Swift
699
star
129
PGSpider (@pgspider)

pgspider

PLpgSQL, C, HTML
698
star
130
genshin.dev (@genshindev)

genshindev

Svelte, TypeScript, JavaScript
692
star
131
東京工業大学デジタル創作同好会traP (@traPtitech)

traPtitech

Go, Vue, TypeScript
685
star
132
Ruby-no-Kai (@ruby-no-kai)

ruby-no-kai

HTML, HCL, Lua
678
star
133
RT Corporation (@rt-net)

rt-net

C++, Python, CMake
655
star
134
私立七森中ごらく部 (@AmusementClub)

AmusementClub

C++, C#, Python
654
star
135
Computing Platforms Federated Labratory (@CPFL)

CPFL

C, Python, C++
648
star
136
Tohoku NLP Group (@cl-tohoku)

cl-tohoku

Python, ASP.NET
636
star
137
株式会社ノハナ (@nohana)

nohana

Java, Swift, Kotlin
635
star
138
PipeCD (@pipe-cd)

pipe-cd

Go, Mustache, Shell
630
star
139
SRA OSS LLC (@sraoss)

sraoss

C, Shell, Ruby
628
star
140
@VergeGroup

VergeGroup

Swift, Ruby, TypeScript
626
star
141
Tsuda Laboratory (@tsudalab)

tsudalab

Python, Jupyter Notebook, C++
621
star
142
Everyleaf (@everyleaf)

everyleaf

Ruby, Java, SCSS
618
star
143
Onetap inc (@OnetapInc)

OnetapInc

JavaScript
613
star
144
@swf2js

swf2js

JavaScript
607
star
145
Asakusa.rb (@asakusarb)

asakusarb

Ruby, HTML, JavaScript
586
star
146
Cyber Range Organization and Design Chair (@crond-jaist)

crond-jaist

Python, C, Zimpl
586
star
147
ClearCode Inc. (@clear-code)

clear-code

JavaScript, Ruby, Lua
581
star
148
Agile Samurai Japanese Edition (@agile-samurai-ja)

agile-samurai-ja

JavaScript
577
star
149
SkyWay (@skyway)

skyway

JavaScript, TypeScript, Java
563
star
150
FascodeNetwork (@FascodeNet)

FascodeNet

Shell, C++, Python
557
star
151
Code for Japan (@codeforjapan)

codeforjapan

TypeScript, Vue, HTML
551
star
152
@HENNGE

HENNGE

Python, HCL, Vue
546
star
153
ESM, Inc. (@esminc)

esminc

Ruby, Python, Shell
538
star
154
@scala-text

scala-text

Scala, TeX
536
star
155
Reiryoku (@Reiryoku-Technologies)

Reiryoku-Technologies

TypeScript, JavaScript, Vue
528
star
156
@CyberAgent

CyberAgent

JavaScript, TypeScript, Java
512
star
157
Wocker (@wckr)

wckr

Shell, Dockerfile, SCSS
511
star
158
幻創社 (@Genshin)

Genshin

Ruby, Java
511
star
159
Implem Inc. (@Implem)

Implem

C#
505
star
160
WordPress Japanese Team (日本語版作成チーム) (@jawordpressorg)

jawordpressorg

PHP, HTML, CSS
490
star
161
@nttcslab-sp

nttcslab-sp

Python, Jupyter Notebook, MATLAB
489
star
162
Birchill, Inc. (@birchill)

birchill

TypeScript
482
star
163
FFRI Security, Inc. (@FFRI)

FFRI

Python, Rust, TypeScript
461
star
164
LISTEN.moe (@LISTEN-moe)

LISTEN-moe

C#, TypeScript, Kotlin
461
star
165
東京大学理論科学グループ (Theoretical Science Group) (@tsg-ut)

tsg-ut

Python, JavaScript, TypeScript
458
star
166
クラスメソッド株式会社 (@classmethod)

classmethod

TypeScript, Java, Go
449
star
167
Fjord, Inc (@fjordllc)

fjordllc

Ruby, JavaScript, HTML
448
star
168
Network stack in USerspacE (@libos-nuse)

libos-nuse

C, CSS, Shell
443
star
169
Dev Protocol (@dev-protocol)

dev-protocol

TypeScript, Vue, JavaScript
440
star
170
OMRON SINIC X (@omron-sinicx)

omron-sinicx

Python, Jupyter Notebook, C++
439
star
171
OUXT-Polaris (@OUXT-Polaris)

OUXT-Polaris

C++, CMake, Python
438
star
172
BEAR.Sunday (@bearsunday)

bearsunday

PHP, HTML, Java
438
star
173
ookami Inc. (@ookamiinc)

ookamiinc

Swift, Objective-C, CSS
436
star
174
RELATION DESIGN LABO, GENERAL INC. ASSOCIATION (@rdlabo-team)

rdlabo-team

TypeScript, Java, Swift
432
star
175
HoloLab Inc. (@HoloLabInc)

HoloLabInc

C#, Batchfile, TypeScript
431
star
176
Flatt Security Inc. (@flatt-security)

flatt-security

JavaScript, HCL, HTML
430
star
177
Lindera Morphology (@lindera-morphology)

lindera-morphology

Rust, Shell
429
star
178
Tokyo Opensource Robotics Kyokai Association (@tork-a)

tork-a

Python, C++, JavaScript
428
star
179
Aromajoin (@aromajoin)

aromajoin

Swift, Java, C#
424
star
180
Digital Garage (@dgarage)

dgarage

C#, JavaScript, Shell
423
star
181
rinna Co.,Ltd. (@rinnakk)

rinnakk

Python, JavaScript, Jupyter Notebook
419
star
182
@mmd-for-unity-proj

mmd-for-unity-proj

C#, CSS
409
star
183
PLEN Project Company Inc. (@plenprojectcompany)

plenprojectcompany

Python, TypeScript, HTML
407
star
184
@sarulab-speech

sarulab-speech

Python
403
star
185
@cpprefjp

cpprefjp

Python, JavaScript, HTML
398
star
186
BizReach,Inc. (@bizreach)

bizreach

Scala, Java
395
star
187
ITOC mruby/c team. (@mrubyc)

mrubyc

C, Ruby
394
star
188
DigitalCube Co. Ltd. (@megumiteam)

megumiteam

PHP, JavaScript, CSS
392
star
189
Komodo (@komodojp)

komodojp

TypeScript
392
star
190
DenkiYagi Inc. (@DenkiYagi)

DenkiYagi

Haxe, Shell, C
392
star
191
Okinawa Institute of Science & Technology (@oist)

oist

Python, Jupyter Notebook, TeX
391
star
192
Uptime Technologies (@uptimejp)

uptimejp

Python, C
387
star
193
Z Lab Corporation (@zlabjp)

zlabjp

Go, Shell, HTML
381
star
194
Chatwork (@chatwork)

chatwork

Scala, JavaScript, PHP
380
star
195
Sekai World (@Sekai-World)

Sekai-World

TypeScript
378
star
196
@SECCON

SECCON

C, Python, PHP
375
star
197
bitcoin portal (@bitcoin-portal)

bitcoin-portal

JavaScript, Solidity
375
star
198
Mobilus Corporation (@mobilusoss)

mobilusoss

JavaScript, Go
375
star
199
eje inc. (@ejeinc)

ejeinc

Java, Swift, C
374
star
200
CubeSoft, Inc. (@cube-soft)

cube-soft

C#, C, Ruby
369
star

Statistics

By location

Osaka 9.9%
Kyoto 9.8%
Yokohama 8.6%
Fukuoka 7.3%
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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