🇯🇵 Japan Organizations doing Open Source

Leading organizations in the Japan driving open source projects.

Developers

27,875

Organizations

2,530

Repositories

240,429

Top Rank

Ruby, Go, Swift

🇯🇵 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
33,666
star
3
LINE (@line)

line

Python, JavaScript, Go
21,048
star
4
STF (@openstf)

openstf

JavaScript, Makefile, CoffeeScript
17,955
star
5
Unity Technologies Japan (@unity3d-jp)

unity3d-jp

C#, C++, JavaScript
13,667
star
6
Sony (@sony)

sony

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

Machine-Learning-Tokyo

Jupyter Notebook, Python, C++
9,121
star
8
O'Reilly Japan (@oreilly-japan)

oreilly-japan

Python, Jupyter Notebook, JavaScript
8,832
star
9
Clipy Project (@Clipy)

Clipy

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

JPCERTCC

Python, HTML, C++
6,469
star
11
CotEditor Project (@coteditor)

coteditor

AppleScript, Python, HTML
6,437
star
12
PokéAPI (@PokeAPI)

PokeAPI

Python, JavaScript, Shell
6,187
star
13
@DroidKaigi

DroidKaigi

Kotlin, HTML
5,747
star
14
Tonari, Inc (@tonarino)

tonarino

Rust, C, TypeScript
5,502
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
4,866
star
19
@VOICEVOX

VOICEVOX

Python, TypeScript, Rust
4,754
star
20
@DeNA

DeNA

Ruby, Go, Python
4,399
star
21
MIXI, Inc. (@mixi-inc)

mixi-inc

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

hatena

Perl, JavaScript, Go
4,078
star
23
Fontworks Inc. (@fontworks-fonts)

fontworks-fonts

Python
3,987
star
24
pixiv Inc. (@pixiv)

pixiv

JavaScript, TypeScript, Go
3,913
star
25
Ariga (@ariga)

ariga

Go, Python, HCL
3,864
star
26
Best of JavaScript (@bestofjs)

bestofjs

JavaScript, TypeScript, Astro
3,737
star
27
@Wizcorp

Wizcorp

JavaScript, Objective-C, Java
3,646
star
28
CodeLibs Project (@codelibs)

codelibs

Java, Shell, Dockerfile
3,412
star
29
chakki (@chakki-works)

chakki-works

Python, Jupyter Notebook, JavaScript
3,245
star
30
Bandai Namco Research Inc. (@BandaiNamcoResearchInc)

BandaiNamcoResearchInc

Python
3,237
star
31
@appleple

appleple

JavaScript, PHP, TypeScript
3,234
star
32
XDSPACE (@xdspacelab)

xdspacelab

2,969
star
33
ESDoc (@esdoc)

esdoc

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

goodwithtech

Shell, Go, Dockerfile
2,843
star
35
Recruit Co.,Ltd (@recruit-mp)

recruit-mp

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

vim-jp

Vim Script, HTML, C
2,548
star
37
アスキードワンゴ編集部 (@asciidwango)

asciidwango

Python, Java, JavaScript
2,514
star
38
時雨堂 (shiguredo) (@shiguredo)

shiguredo

C++, Erlang, TypeScript
2,505
star
39
Wantedly, Inc. (@wantedly)

wantedly

Ruby, Go, TypeScript
2,375
star
40
Rakuten Group, Inc. (@rakutentech)

rakutentech

Go, Python, Swift
2,349
star
41
Cybozu Go (@cybozu-go)

cybozu-go

Go, Makefile
2,251
star
42
GoJP (@gojp)

gojp

Go
2,237
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, Astro
1,934
star
46
NTT OSS Center DBMS Development and Support Team (@ossc-db)

ossc-db

C, Java, Perl
1,890
star
47
KAYAC (@kayac)

kayac

Go, C#, JavaScript
1,848
star
48
Gfriends (@gfriends)

gfriends

Python, JavaScript
1,789
star
49
Mackerel (@mackerelio)

mackerelio

Go, Ruby, Jinja
1,778
star
50
@latonaio

latonaio

Go, Python, Makefile
1,754
star
51
Eureka (@eure)

eure

Swift, Go, Kotlin
1,689
star
52
WESEEK, Inc. (@weseek)

weseek

TypeScript, JavaScript, Dockerfile
1,628
star
53
Indie Visual Lab (@IndieVisualLab)

IndieVisualLab

C#, C++, JavaScript
1,624
star
54
Silicon Studio Corporation (@SiliconStudio)

SiliconStudio

1,615
star
55
ax Inc. (@axinc-ai)

axinc-ai

Python, Rust, C++
1,583
star
56
Vector Data as a Service (@vdaas)

vdaas

Go, Clojure, Jupyter Notebook
1,571
star
57
Authlib (@authlib)

authlib

Python, HTML
1,565
star
58
Studio Ousia (@studio-ousia)

studio-ousia

Python, Cython, Jupyter Notebook
1,563
star
59
ServerlessOperations (@serverless-operations)

serverless-operations

JavaScript, Python, TypeScript
1,554
star
60
Idein Inc. (@Idein)

Idein

Python, Rust, Dockerfile
1,549
star
61
Remote in Japan (@remote-jp)

remote-jp

Ruby
1,530
star
62
Yamagishi and Echizen Laboratories, National Institute of Informatics (@nii-yamagishilab)

nii-yamagishilab

Python, Shell, Jupyter Notebook
1,513
star
63
YCAMInterLab (@YCAMInterlab)

YCAMInterlab

C++, JavaScript, C
1,511
star
64
KLab Inc. (@KLab)

KLab

Python, C#, C
1,477
star
65
Typlog (@typlog)

typlog

CSS, Nunjucks, Jinja
1,466
star
66
@FlutterGen

FlutterGen

Ruby, Dart
1,448
star
67
Nulab Inc (@nulab)

nulab

JavaScript, Scala, Java
1,428
star
68
HeteroDB,Inc (@heterodb)

heterodb

C, Shell
1,394
star
69
KORG INC. (@korginc)

korginc

C, Roff
1,386
star
70
CyberAgent AI Lab (@CyberAgentAILab)

CyberAgentAILab

Python, Jupyter Notebook, R
1,360
star
71
uPhyca, Inc. (@uPhyca)

uPhyca

Java, Groovy
1,347
star
72
Tilfin Ltd. (@tilfinltd)

tilfinltd

TypeScript, JavaScript, HTML
1,339
star
73
Jasper (@jasperapp)

jasperapp

TypeScript, CSS
1,319
star
74
PicoRuby (@picoruby)

picoruby

Ruby, C, HTML
1,304
star
75
Teamcraft (@ffxiv-teamcraft)

ffxiv-teamcraft

TypeScript, JavaScript, C#
1,247
star
76
@Live2D

Live2D

C#, TypeScript, C++
1,236
star
77
CAM, LTD. (@cam-inc)

cam-inc

TypeScript, JavaScript, Go
1,235
star
78
Egison (@egison)

egison

Haskell, Shell, Jupyter Notebook
1,231
star
79
Recruit Holdings. Media Technology Lab (@recruit-mtl)

recruit-mtl

Java, Objective-C, Swift
1,230
star
80
Qiita Inc. (@increments)

increments

Ruby, JavaScript, CSS
1,225
star
81
Information Access Division, Geospatial Information Authority of Japan (@gsi-cyberjapan)

gsi-cyberjapan

JavaScript, HTML, Python
1,217
star
82
YUMEMI Inc. (@yumemi-inc)

yumemi-inc

TypeScript, Swift, Shell
1,205
star
83
ICS INC. (@ics-creative)

ics-creative

JavaScript, TypeScript, HTML
1,167
star
84
@unvell

unvell

C#
1,164
star
85
@textlint-ja

textlint-ja

JavaScript, TypeScript
1,101
star
86
An open tech group (@sjitech)

sjitech

Shell, Java, JavaScript
1,069
star
87
Jubatus (@jubatus)

jubatus

Python, C++, Ruby
1,054
star
88
@vollib

vollib

Python, Java, JavaScript
1,042
star
89
Recruit Co., Ltd. (@recruit-tech)

recruit-tech

JavaScript, TypeScript, Python
1,018
star
90
AzuyaLabs (@azuyalabs)

azuyalabs

PHP
1,015
star
91
アティリカ株式会社 (@atilika)

atilika

Java, HTML
1,006
star
92
Emacs JP (@emacs-jp)

emacs-jp

Emacs Lisp, TeX, Makefile
976
star
93
PHP Mentors (@phpmentors-jp)

phpmentors-jp

PHP, Shell
974
star
94
Programming The Blockchain in C# (@ProgrammingBlockchain)

ProgrammingBlockchain

CSS, C#
970
star
95
Language Media Processing Lab, Kyoto University (@ku-nlp)

ku-nlp

Python, Perl, C
967
star
96
私立七森中ごらく部 (@AmusementClub)

AmusementClub

C++, C#, Python
967
star
97
Sparticle Inc. (@sparticleinc)

sparticleinc

JavaScript, Objective-C, TypeScript
947
star
98
Glory Lab (@glorylab)

glorylab

Dart
940
star
99
YassLab Inc. (@yasslab)

yasslab

Ruby, JavaScript, Shell
939
star
100
@SwiftFiddle

SwiftFiddle

Markdown, TypeScript, HTML
936
star

Statistics

By location

Osaka 10.1%
Kyoto 9.7%
Yokohama 8.6%
Fukuoka 7.4%
Nagoya 4.5%
Other 59.8%

By programing language

JavaScript
 		18.8%
Python
 		15.0%
Ruby
 		7.4%
TypeScript
 		7.2%
C++
 		5.9%
Other 		45.8%

World rating by programing language (country/rank)

Ruby
 		3
Go
 		6
Swift
 		6
Vue 		6
Rust
 		7

* More analytics for signed in users.