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Top 100 Open Source Contributors in Japan

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100 contributors total
ubugeeei avatar

ubugeeei

Fuck you, human.

Japan flagTokyo / Japan
Languages: TypeScript, Vue, Rust, Ruby, Go, JavaScript
Total Contributions
13.50K
Breakdown
Pull Requests
9589
Reviews
135
Issues
3711
Repositories
67
Followers
464
Global Rank
8
Tokuhiro Matsuno avatar

Tokuhiro Matsuno

Go/Kotlin/Rust/Python engineer. I wrote Java, Perl5, C, C++, Kotlin, and golang for $DAYJOB.

Japan flagTokyo, Japan
Languages: Perl, C, JavaScript, Raku, C++
Total Contributions
12.27K
Breakdown
Pull Requests
9999
Reviews
54
Issues
2161
Repositories
56
Followers
1.04K
Global Rank
14
Yamagishi Kazutoshi avatar

Yamagishi Kazutoshi

Japan flagJapan
Languages: TypeScript, Go, HCL, XSLT, JavaScript
Total Contributions
8.75K
Breakdown
Pull Requests
2238
Reviews
3955
Issues
2551
Repositories
5
Followers
373
Global Rank
39
CHIKAMATSU Naohiro avatar

CHIKAMATSU Naohiro

Japan flagNiigata, Japan
Languages: Go, Shell, Vala
Total Contributions
7.73K
Breakdown
Pull Requests
4450
Reviews
7
Issues
3226
Repositories
48
Followers
137
Global Rank
51
Kenta Goto avatar

Kenta Goto

AWS DevTools Hero / AWS CDK Top Contributor & Community Reviewer / Creator of cdkd

Japan flagJapan
Languages: TypeScript, Go, JavaScript
Total Contributions
7.37K
Breakdown
Pull Requests
4587
Reviews
41
Issues
2727
Repositories
12
Followers
98
Global Rank
56
Kuroné Kito (黒音キト) avatar

Kuroné Kito (黒音キト)

Virtual Beings: Virtual YouTuber (VTuber) / Loop engineering developer / Developer for web frontend / UIUX designer / 🇯🇵

Japan flagTokyo, Japan
Languages: TypeScript, Shell, PowerShell, JavaScript
Total Contributions
7.25K
Breakdown
Pull Requests
3014
Reviews
357
Issues
3868
Repositories
10
Followers
265
Global Rank
58
kuu(Fumiya Kume) avatar

kuu(Fumiya Kume)

Software Engineer @mercari

Japan flagJapan
Languages: Kotlin, Python, Shell, Go, Swift
Total Contributions
7.24K
Breakdown
Pull Requests
7162
Reviews
7
Issues
58
Repositories
11
Followers
267
Global Rank
59
Takeshi Takatsudo avatar

Takeshi Takatsudo

Japan flagJapan
Languages: JavaScript, Python, TypeScript, Rust
Total Contributions
6.92K
Breakdown
Pull Requests
3648
Reviews
1
Issues
3209
Repositories
63
Followers
175
Global Rank
62
Kotaro Chikuba avatar

Kotaro Chikuba

Japan flagTokyo/Japan
Languages: Rust, MoonBit, Lean, TypeScript
Total Contributions
6.07K
Breakdown
Pull Requests
3888
Reviews
10
Issues
2087
Repositories
85
Followers
1.87K
Global Rank
77
Gosuke Miyashita avatar

Gosuke Miyashita

Japan flagKanagawa, Japan
Languages: HCL, Go, HTML, Ruby
Total Contributions
5.93K
Breakdown
Pull Requests
3232
Reviews
0
Issues
2683
Repositories
14
Followers
596
Global Rank
83
lestrrat avatar

lestrrat

DevRel/Tech Event orga. @peco maintainer. Projects → Go: @lestrrat-go, Perl5: @lestrrat-p5, Perl6: @lestrrat-p6, dead projects: @lestrrat-morgue

Japan flagTokyo, Japan
Languages: Go, HTML
Total Contributions
5.90K
Breakdown
Pull Requests
5777
Reviews
101
Issues
16
Repositories
8
Followers
928
Global Rank
84
Shinichi Yoshinaga avatar

Shinichi Yoshinaga

I live in Aichi Prefecture. Now, work as IT engineer. I specialize in LLM and Computer Vision. This site showcases various AI-related projects and code.

Japan flagYatomi-City, Japan
Languages: C++, Python, Rust, TypeScript, VHDL, JavaScript
Total Contributions
5.38K
Breakdown
Pull Requests
1810
Reviews
1806
Issues
1767
Repositories
1
Followers
61
Global Rank
98
Junichi Kato avatar

Junichi Kato

I'm a tech-lead in the IDEO;PLUS Inc, is lover to Scala/Rust, Akka, DDD/CQRS+Event Sourcing.

Japan flagArakawa-ku, Tokyo, Japan
Languages: Scala, Rust, Java, Go, TypeScript
Total Contributions
4.97K
Breakdown
Pull Requests
3450
Reviews
49
Issues
1441
Repositories
27
Followers
517
Global Rank
115
Hiroshi Shinaoka avatar

Hiroshi Shinaoka

Professor of computational physics, quantum many-body theory, condensed matter physics

Japan flagSaitama, Japan
Languages: Python, Rust, TypeScript, JavaScript, Fortran
Total Contributions
4.70K
Breakdown
Pull Requests
2695
Reviews
13
Issues
1941
Repositories
47
Followers
169
Global Rank
126
Kato, H. avatar

Kato, H.

An individual developer. I join contests of AtCoder.

Japan flagGifu, Japan
Languages: TypeScript, Python, Shell, HTML, JavaScript, Dockerfile
Total Contributions
4.13K
Breakdown
Pull Requests
1329
Reviews
1318
Issues
1468
Repositories
10
Followers
103
Global Rank
165
Takeshi Watanabe avatar

Takeshi Watanabe

Japan flagNagano, Japan
Languages: C, Python, JavaScript, Ren'Py, C++
Total Contributions
4.11K
Breakdown
Pull Requests
3974
Reviews
63
Issues
49
Repositories
27
Followers
260
Global Rank
167
kobaken avatar

kobaken

Japan flagTokyo, Japan
Languages: Perl, Python, Lua, HTML, Raku
Total Contributions
3.84K
Breakdown
Pull Requests
2788
Reviews
30
Issues
996
Repositories
25
Followers
77
Global Rank
193
Yuji Ueki avatar

Yuji Ueki

＼ Software Engineer ／

Japan flagTokyo, Japan
Languages: Ruby, Shell, Rust, Kotlin
Total Contributions
3.70K
Breakdown
Pull Requests
621
Reviews
2540
Issues
520
Repositories
15
Followers
3.69K
Global Rank
206
Akihiko Watanabe avatar

Akihiko Watanabe

AI Engineer with a research background in natural language processing.

Japan flagTokyo, Japan
Languages: HTML
Total Contributions
3.60K
Breakdown
Pull Requests
1
Reviews
0
Issues
3604
Repositories
0
Followers
69
Global Rank
213
USAMI Kenta avatar

USAMI Kenta

All my English is bad. Anyone can replace all my sentences. ヾ(〃＞＜)ﾉﾞ☆ < I'm tadsan.

Japan flagShibuya, Tokyo, Japan
Languages: PHP, C, Emacs Lisp, Ruby, Makefile
Total Contributions
3.55K
Breakdown
Pull Requests
1848
Reviews
8
Issues
1635
Repositories
55
Followers
416
Global Rank
222
Ryohei Sasaki avatar

Ryohei Sasaki

Software Engineer at MAP IV(TIER IV group)

Japan flagJapan
Languages: C++, Python, Rust
Total Contributions
3.51K
Breakdown
Pull Requests
3345
Reviews
13
Issues
82
Repositories
66
Followers
729
Global Rank
228
Shinsuke Sugaya avatar

Shinsuke Sugaya

Open Source Developer @codelibs Focused on Search & AI ecosystem.

Japan flagJapan
Languages: Java, JavaScript, Python, Rich Text Format
Total Contributions
3.29K
Breakdown
Pull Requests
3265
Reviews
4
Issues
19
Repositories
6
Followers
97
Global Rank
258
Yoshitaka Kawashima avatar

Yoshitaka Kawashima

Japan flagTokyo, Japan
Languages: Java, Clojure, TypeScript
Total Contributions
3.24K
Breakdown
Pull Requests
1806
Reviews
12
Issues
1406
Repositories
14
Followers
364
Global Rank
272
Hiroki Kondo avatar

Hiroki Kondo

Japan flagJapan
Languages: TypeScript, Shell
Total Contributions
3.21K
Breakdown
Pull Requests
1914
Reviews
153
Issues
1133
Repositories
8
Followers
75
Global Rank
280
Shunsuke Suzuki avatar

Shunsuke Suzuki

Platform Engineer / OSS Developer / Go

Japan flagTokyo, Japan
Languages: Go, JavaScript, Shell
Total Contributions
3.20K
Breakdown
Pull Requests
2875
Reviews
111
Issues
181
Repositories
35
Followers
621
Global Rank
282
Masahiro FUJIMOTO avatar

Masahiro FUJIMOTO

Japan flagUeda, Nagano, Japan
Languages: Markdown, Makefile, JavaScript
Total Contributions
3.09K
Breakdown
Pull Requests
2710
Reviews
374
Issues
1
Repositories
1
Followers
61
Global Rank
311
Tetsuo Koyama avatar

Tetsuo Koyama

AI engineer @AKARI-Inc 3D visualization library @pyvista maintainer, @scipy-conference chairperson, Technical Steering Committee of @numfocus photo @pyconjp

Japan flagJapan
Languages: Python, HTML, CSS, TypeScript, Shell
Total Contributions
3.08K
Breakdown
Pull Requests
1052
Reviews
1600
Issues
326
Repositories
99
Followers
373
Global Rank
313
翠 avatar

翠

@vitejs core team member

Japan flagJapan
Languages: JavaScript, TypeScript, Go, Rust
Total Contributions
3.07K
Breakdown
Pull Requests
1378
Reviews
1346
Issues
324
Repositories
21
Followers
1.52K
Global Rank
314
Sakamoto, Kazunori avatar

Sakamoto, Kazunori

❤️ AI Agents, Agentic Engineering, LLMs, Next.js, Bun, React, TypeScript, Electron, Meteor, Flutter, React Native.

Japan flagJapan
Languages: TypeScript, Rust, JavaScript
Total Contributions
2.99K
Breakdown
Pull Requests
2727
Reviews
5
Issues
235
Repositories
19
Followers
96
Global Rank
333
Hiroshi Ogawa avatar

Hiroshi Ogawa

@vitest-dev @vitejs contributor

Japan flagJapan
Languages: TypeScript, JavaScript, Rust
Total Contributions
2.90K
Breakdown
Pull Requests
1828
Reviews
588
Issues
440
Repositories
41
Followers
484
Global Rank
351
Akihiro Suda avatar

Akihiro Suda

A maintainer of containerd, Lima, Moby(dockerd), BuildKit, runc, etc.

Japan flagTokyo, Japan
Languages: Go, Shell, Python
Total Contributions
2.81K
Breakdown
Pull Requests
577
Reviews
1920
Issues
294
Repositories
17
Followers
1.79K
Global Rank
367
Steven Sacks avatar

Steven Sacks

Principal Fullstack Engineer · Author of GAIA · Conference Speaker

Japan flagTokyo, Japan
Languages: TypeScript, JavaScript, Rust
Total Contributions
2.78K
Breakdown
Pull Requests
1772
Reviews
1
Issues
998
Repositories
5
Followers
61
Global Rank
370
Tsubasa SEKIGUCHI avatar

Tsubasa SEKIGUCHI

Full-stack creator.

Japan flagTokyo, Japan
Languages: TypeScript, Rust, HTML, Python
Total Contributions
2.77K
Breakdown
Pull Requests
2501
Reviews
35
Issues
230
Repositories
7
Followers
78
Global Rank
372
Yuki Iwai avatar

Yuki Iwai

@kubeflow WG Training | @kubernetes WG Batch

Japan flagTokyo, Japan
Languages: Go, Jupyter Notebook, HCL, Ruby, Python
Total Contributions
2.76K
Breakdown
Pull Requests
333
Reviews
2356
Issues
68
Repositories
5
Followers
199
Global Rank
378
Kota Mizushima avatar

Kota Mizushima

Ph.D. (Engineering). Interested in programming languages/formal lanruages/parser/...

Japan flagOsaka, Japan
Languages: Scala, JavaScript, Rust, TeX, HTML, TypeScript
Total Contributions
2.75K
Breakdown
Pull Requests
2295
Reviews
7
Issues
415
Repositories
36
Followers
514
Global Rank
380
Shizuo Fujita avatar

Shizuo Fujita

Ruby committer, RMagick maintainer, Fluentd committer

Japan flagJapan
Languages: Ruby, C
Total Contributions
2.75K
Breakdown
Pull Requests
1602
Reviews
1051
Issues
41
Repositories
56
Followers
284
Global Rank
381
Zero Dev avatar

Zero Dev

AI | Blockchain | Full stack | Mobile | Automation

Japan flagJapan
Languages: Python, TeX, SCSS
Total Contributions
2.75K
Breakdown
Pull Requests
570
Reviews
907
Issues
1237
Repositories
32
Followers
292
Global Rank
382
Sutou Kouhei avatar

Sutou Kouhei

Japan flagTokyo, Japan
Languages: Ruby, C, Yacc, C++
Total Contributions
2.67K
Breakdown
Pull Requests
947
Reviews
1323
Issues
334
Repositories
66
Followers
634
Global Rank
401
Yuya Ebihara avatar

Yuya Ebihara

Trino maintainer & Polaris committer

Japan flagJapan
Languages: Java, Dockerfile, HTML, Scala
Total Contributions
2.65K
Breakdown
Pull Requests
575
Reviews
1995
Issues
70
Repositories
14
Followers
159
Global Rank
406
Hirotomo Yamada avatar

Hirotomo Yamada

Japan flagJapan
Languages: TypeScript, JavaScript
Total Contributions
2.60K
Breakdown
Pull Requests
1338
Reviews
337
Issues
916
Repositories
5
Followers
102
Global Rank
421
myuon avatar

myuon

Japan flagJapan
Languages: Go, Python, TypeScript, JavaScript, Rust
Total Contributions
2.59K
Breakdown
Pull Requests
1522
Reviews
143
Issues
909
Repositories
20
Followers
156
Global Rank
422
Harutaka Kawamura avatar

Harutaka Kawamura

Japan flagJapan
Languages: Python, CSS, JavaScript, Jupyter Notebook, Batchfile, PowerShell
Total Contributions
2.58K
Breakdown
Pull Requests
790
Reviews
1741
Issues
46
Repositories
7
Followers
305
Global Rank
424
FUJI Goro avatar

FUJI Goro

Software engineer. Parent of two kids. I love programming!

Japan flagTokyo, Japan
Languages: TypeScript, Go, C++, Dart, Rust, Cython, Dockerfile
Total Contributions
2.52K
Breakdown
Pull Requests
2262
Reviews
19
Issues
228
Repositories
10
Followers
1.04K
Global Rank
434
Alejandro Cremades avatar

Alejandro Cremades

Japan flagItoshima, Japan
Languages: TypeScript
Total Contributions
2.50K
Breakdown
Pull Requests
87
Reviews
2332
Issues
72
Repositories
12
Followers
61
Global Rank
438
Takeshi KOMIYA avatar

Takeshi KOMIYA

Japan flagSaitama, Japan
Languages: Ruby, TypeScript, Python
Total Contributions
2.48K
Breakdown
Pull Requests
2412
Reviews
23
Issues
21
Repositories
22
Followers
227
Global Rank
451
ncaq avatar

ncaq

エヌユル is my Japanese name. Haskell TypeScript Emacs Web NLP

Japan flagJapan
Languages: Emacs Lisp, Haskell, C++, Nix, Dockerfile, Shell, CSS, SCSS
Total Contributions
2.47K
Breakdown
Pull Requests
2040
Reviews
76
Issues
328
Repositories
26
Followers
175
Global Rank
456
Ben Hsieh avatar

Ben Hsieh

Prompt machine 🤖

Japan flagTokyo, Japan
Languages: Rust
Total Contributions
2.42K
Breakdown
Pull Requests
1196
Reviews
77
Issues
1150
Repositories
1
Followers
128
Global Rank
475
ICHINOSE Shogo avatar

ICHINOSE Shogo

goroutine concurrency expert

Japan flagJapan
Languages: Perl, Go, HTML, Python, Shell, TypeScript
Total Contributions
2.40K
Breakdown
Pull Requests
1399
Reviews
925
Issues
35
Repositories
36
Followers
386
Global Rank
485
Genki Sugawara avatar

Genki Sugawara

🍺

Japan flagJapan
Languages: Go, Ruby, Python
Total Contributions
2.37K
Breakdown
Pull Requests
2173
Reviews
119
Issues
2
Repositories
77
Followers
228
Global Rank
487
Daichi Narushima avatar

Daichi Narushima

成島 大智 (Narushima, Daichi)

Japan flagTokyo, Japan
Languages: Dockerfile, Shell, HTML, CSS, R, Ruby, Vim Script, Python
Total Contributions
2.35K
Breakdown
Pull Requests
1329
Reviews
516
Issues
463
Repositories
38
Followers
53
Global Rank
493
Shuu avatar

Shuu

🍺🍺🍺🍺🍺

Japan flagTokyo, Japan
Languages: Nim, Jinja, Vim Script, HTML, C, Shell
Total Contributions
2.30K
Breakdown
Pull Requests
2225
Reviews
28
Issues
40
Repositories
11
Followers
130
Global Rank
509
Jam Balaya avatar

Jam Balaya

Shogi and Mahjong Player♟️🀄

Japan flagJapan
Languages: PHP, Python, Go, JavaScript, Java
Total Contributions
2.30K
Breakdown
Pull Requests
1881
Reviews
325
Issues
48
Repositories
44
Followers
82
Global Rank
514
Yusuke Harada avatar

Yusuke Harada

I am a Japanese independent Full-Stack Engineer with a strong focus on AI/ML integration and production deployment.

Japan flagJapan
Languages: C++, Python, C#, CSS, JavaScript, Rust
Total Contributions
2.28K
Breakdown
Pull Requests
840
Reviews
13
Issues
1364
Repositories
59
Followers
154
Global Rank
522
watany avatar

watany

:heart: gustave-kun

Japan flagjapan
Languages: TypeScript, Rust, Python, Go, HCL
Total Contributions
2.27K
Breakdown
Pull Requests
1511
Reviews
3
Issues
726
Repositories
33
Followers
51
Global Rank
527
Tomoya Fujita avatar

Tomoya Fujita

ROS PMC | Software Engineer / Architect

Japan flagJapan
Languages: C++, Python, C
Total Contributions
2.24K
Breakdown
Pull Requests
385
Reviews
1724
Issues
112
Repositories
23
Followers
489
Global Rank
538
furukawa　kotaro avatar

furukawa　kotaro

Kanazawa Univ. School of Entrepreneurial and Innovation Studies. B2 → / Pseudo-engineer / ex-RCJ / Pursuing user-friendly things, systems & community design 🐡

Japan flagJAPAN
Languages: TypeScript, C++, JavaScript, Dart, Python
Total Contributions
2.22K
Breakdown
Pull Requests
1175
Reviews
22
Issues
948
Repositories
78
Followers
64
Global Rank
546
bannzai avatar

bannzai

Japan flagTokyo, Japan
Languages: Swift, Dart, Shell, Go
Total Contributions
2.17K
Breakdown
Pull Requests
1287
Reviews
15
Issues
846
Repositories
27
Followers
313
Global Rank
561
Aki Hamano avatar

Aki Hamano

Freelance Developer / WordPress Core Committer / Contributing to WordPress, sponsored by LOOS, Hostinger, Kinsta, and ServMask.

Japan flagJapan
Languages: PHP, TypeScript, JavaScript, Gherkin
Total Contributions
2.13K
Breakdown
Pull Requests
869
Reviews
1016
Issues
225
Repositories
20
Followers
185
Global Rank
583
Satoshi Terasaki avatar

Satoshi Terasaki

JuliaLang package/code creator Miyagi, Sendai/Japan 　 MainLang: Julia/Python

Japan flagMiyagi/Japan
Total Contributions
2.10K
Breakdown
Pull Requests
1154
Reviews
4
Issues
902
Repositories
41
Followers
328
Global Rank
598
Tomachi avatar

Tomachi

new User("Tomachi", "book000", Location.JAPAN);

Japan flagJapan
Total Contributions
2.10K
Breakdown
Pull Requests
173
Reviews
1567
Issues
350
Repositories
9
Followers
61
Global Rank
600
Yuki Yamazaki avatar

Yuki Yamazaki

Software Engineer / Data Engineer / OSS Developer / Founder of @ts-graphviz

Japan flagJapan
Languages: TypeScript, JavaScript, Kotlin
Total Contributions
2.07K
Breakdown
Pull Requests
1986
Reviews
41
Issues
43
Repositories
1
Followers
58
Global Rank
613
Koudai Aono avatar

Koudai Aono

Python · PEP 750 co-author · OSS maintainer · Open to work.

Japan flagTokyo, Japan
Languages: Python, Kotlin, C
Total Contributions
2.04K
Breakdown
Pull Requests
1815
Reviews
170
Issues
44
Repositories
8
Followers
578
Global Rank
635
mpyw avatar

mpyw

Interested in Go/Rust/TypeScript, previously PHP/Laravel

Japan flagOsaka, Japan
Languages: PHP, TypeScript, C, HTML, Shell
Total Contributions
1.99K
Breakdown
Pull Requests
1412
Reviews
12
Issues
536
Repositories
29
Followers
569
Global Rank
660
Minoru OSUKA avatar

Minoru OSUKA

Japan flagJapan
Languages: Rust
Total Contributions
1.99K
Breakdown
Pull Requests
1141
Reviews
22
Issues
820
Repositories
3
Followers
248
Global Rank
661
Kazuhiro Sera avatar

Kazuhiro Sera

Developer Experience at OpenAI

Japan flagTokyo, Japan
Languages: TypeScript, Python, Ruby
Total Contributions
1.93K
Breakdown
Pull Requests
1169
Reviews
751
Issues
9
Repositories
0
Followers
1.82K
Global Rank
707
kawa27 avatar

kawa27

Japan flagjapan
Languages: TypeScript, Shell, Go
Total Contributions
1.91K
Breakdown
Pull Requests
917
Reviews
1
Issues
973
Repositories
22
Followers
50
Global Rank
714
Mark Karpelès avatar

Mark Karpelès

Japan flagTokyo, Japan
Languages: PHP, C, C++, Go
Total Contributions
1.91K
Breakdown
Pull Requests
1792
Reviews
14
Issues
95
Repositories
7
Followers
284
Global Rank
717
mattn avatar

mattn

Long-time Golang user&contributor, Google Dev Expert for Go, and author of many Go tools, Vim plugin author. Windows hacker C#/Java/C/C++, ex-GitHubStars

Japan flagOsaka, Japan
Languages: Vim Script, Go, C++, Perl
Total Contributions
1.90K
Breakdown
Pull Requests
1728
Reviews
49
Issues
21
Repositories
97
Followers
13.52K
Global Rank
730
Omochice avatar

Omochice

Japan flagJapan
Languages: TypeScript, JavaScript, HTML, Lua, Nix
Total Contributions
1.81K
Breakdown
Pull Requests
1050
Reviews
687
Issues
40
Repositories
34
Followers
50
Global Rank
776
Chen Yu avatar

Chen Yu

Was an engineer

Japan flagTokyo, Japan
Languages: TypeScript, Rust
Total Contributions
1.79K
Breakdown
Pull Requests
624
Reviews
643
Issues
488
Repositories
33
Followers
111
Global Rank
785
Ian Lewis avatar

Ian Lewis

Engineer #golang #python #typescript #rust

Japan flagTokyo, Japan
Languages: Shell, Go, Ruby, TypeScript, Makefile, Vim Script
Total Contributions
1.78K
Breakdown
Pull Requests
583
Reviews
672
Issues
518
Repositories
4
Followers
455
Global Rank
791
Yusuke Hayashi avatar

Yusuke Hayashi

Founder & CEO at haya Inc. | Software Engineer

Japan flagTokyo, Japan
Languages: Python, Rust, Go, JavaScript, TypeScript
Total Contributions
1.77K
Breakdown
Pull Requests
1306
Reviews
12
Issues
375
Repositories
82
Followers
73
Global Rank
793
Hiroshi SHIBATA avatar

Hiroshi SHIBATA

Full-time OSS developer. I'm a member of Ruby core team, RubyGems team and rbenv and ruby-build maintainer.

Japan flagTokyo, Japan
Languages: Ruby, C, Yacc, JavaScript
Total Contributions
1.77K
Breakdown
Pull Requests
1419
Reviews
306
Issues
18
Repositories
24
Followers
1.67K
Global Rank
800
Jesse Katsumata avatar

Jesse Katsumata

Engineer @AnotherBall Member of @react-native-community

Japan flagChiba, Japan
Languages: TypeScript, HTML, MDX, Shell, JavaScript, Kotlin
Total Contributions
1.71K
Breakdown
Pull Requests
969
Reviews
8
Issues
721
Repositories
8
Followers
441
Global Rank
854
Akiomi KAMAKURA avatar

Akiomi KAMAKURA

Bird lover.

Japan flagJapan
Languages: Rust, JavaScript, Jupyter Notebook, Go, Makefile, TypeScript
Total Contributions
1.67K
Breakdown
Pull Requests
1288
Reviews
41
Issues
321
Repositories
18
Followers
201
Global Rank
881
XPA avatar

XPA

そこら辺の学生 28卒

Japan flagTokyo, Japan
Languages: TypeScript, HCL, HTML, JavaScript
Total Contributions
1.66K
Breakdown
Pull Requests
1572
Reviews
11
Issues
58
Repositories
20
Followers
84
Global Rank
889
Yuji Sugiura avatar

Yuji Sugiura

Japan flagJapan
Languages: JavaScript, TypeScript, Rust, GLSL, Astro
Total Contributions
1.65K
Breakdown
Pull Requests
1234
Reviews
301
Issues
105
Repositories
11
Followers
228
Global Rank
895
haruki7049 avatar

haruki7049

I cannot speak English well

Japan flagJapan
Languages: Rust, Nix, Haskell, C++, C, Common Lisp
Total Contributions
1.65K
Breakdown
Pull Requests
852
Reviews
13
Issues
693
Repositories
89
Followers
84
Global Rank
899
Shion Ichikawa avatar

Shion Ichikawa

DevSecOps❤️ from 🇯🇵 SWE @goldmansachs | ex-SWE Intern @sony @apple @LayerXcom @flatt-jp

Japan flagYokohama, Kanagawa, Japan
Languages: Go, TypeScript, JavaScript, Python, C++, Scala, Jupyter Notebook
Total Contributions
1.65K
Breakdown
Pull Requests
971
Reviews
446
Issues
173
Repositories
57
Followers
120
Global Rank
900
Kaito Udagawa avatar

Kaito Udagawa

A Pokémon GO Trainer

Japan flagTokyo, Japan
Languages: C++, Ruby, C, CMake
Total Contributions
1.62K
Breakdown
Pull Requests
1376
Reviews
64
Issues
173
Repositories
11
Followers
55
Global Rank
925
T.Shinohara avatar

T.Shinohara

Programmer, Enginner

Japan flagJapan, Tokyo
Languages: Svelte, Astro, JavaScript, HTML
Total Contributions
1.58K
Breakdown
Pull Requests
800
Reviews
1
Issues
751
Repositories
26
Followers
77
Global Rank
967
Akihito Koriyama avatar

Akihito Koriyama

A Tokyo based PHP developer @bearsunday @auraphp

Japan flagTokyo, Japan
Languages: PHP, HTML
Total Contributions
1.57K
Breakdown
Pull Requests
1170
Reviews
16
Issues
353
Repositories
27
Followers
261
Global Rank
981
Masaya Suzuki avatar

Masaya Suzuki

Software engineer / Technical book writer

Japan flagSaitama, Japan
Languages: Shell, TypeScript, Python, HTML, JavaScript
Total Contributions
1.56K
Breakdown
Pull Requests
670
Reviews
883
Issues
2
Repositories
4
Followers
57
Global Rank
989
Yuki Okushi avatar

Yuki Okushi

Japanese codewriting ninja

Japan flagJapan
Languages: Rust, SCSS, Go, CSS
Total Contributions
1.54K
Breakdown
Pull Requests
375
Reviews
1137
Issues
13
Repositories
16
Followers
1.52K
Global Rank
1005
Taiki Yoshikawa avatar

Taiki Yoshikawa

Salesforce Developer

Japan flagJapan
Languages: TypeScript, JavaScript, Python
Total Contributions
1.53K
Breakdown
Pull Requests
811
Reviews
16
Issues
695
Repositories
5
Followers
225
Global Rank
1019
Shunsuke KITADA avatar

Shunsuke KITADA

Ph.D. Research Scientist working on automatically generating creative graphic design

Japan flagJapan / Tokyo
Languages: Python, Jupyter Notebook, Shell
Total Contributions
1.51K
Breakdown
Pull Requests
1095
Reviews
213
Issues
190
Repositories
16
Followers
174
Global Rank
1035
Coji Mizoguchi avatar

Coji Mizoguchi

Japan flagTokyo, Japan
Languages: TypeScript, Go
Total Contributions
1.51K
Breakdown
Pull Requests
1250
Reviews
1
Issues
241
Repositories
21
Followers
180
Global Rank
1036
sator-imaging avatar

sator-imaging

👇

Japan flagTokyo, Japan
Languages: C#, TypeScript, Go, Rust
Total Contributions
1.50K
Breakdown
Pull Requests
308
Reviews
1085
Issues
34
Repositories
70
Followers
51
Global Rank
1049
Yusuke Hirao avatar

Yusuke Hirao

Designing and Engineering. Web Accessibility Specialist. Author of @markuplint.

Japan flagFukuoka, JAPAN
Languages: TypeScript, Astro, Python, Svelte, JavaScript
Total Contributions
1.49K
Breakdown
Pull Requests
931
Reviews
148
Issues
409
Repositories
0
Followers
55
Global Rank
1058
Yuki Watanabe avatar

Yuki Watanabe

Making double faults

Japan flagTokyo / Japan
Languages: Python, TypeScript, Batchfile, Mermaid
Total Contributions
1.48K
Breakdown
Pull Requests
544
Reviews
879
Issues
21
Repositories
32
Followers
60
Global Rank
1068
Nozomi Koborinai avatar

Nozomi Koborinai

🏆 Google Cloud Partner Top Engineer 2025 & 2026 / 🤖 Author of @mastering-genkit

Japan flagTokyo, Japan
Languages: Go, TypeScript, Dart, MDX, Ruby, Python
Total Contributions
1.48K
Breakdown
Pull Requests
1326
Reviews
32
Issues
101
Repositories
16
Followers
66
Global Rank
1069
DoodleBear avatar

DoodleBear

CS Bachelor @ Fujen Catholic University Master @ University of Tsukuba ✨Love Design, Code ✨Interested in Recommender System, Information Retrieval, LLM

Japan flagIbaraki, Japan
Languages: TypeScript, JavaScript, Go
Total Contributions
1.48K
Breakdown
Pull Requests
786
Reviews
0
Issues
677
Repositories
12
Followers
92
Global Rank
1070
Ryo Nakano avatar

Ryo Nakano

Developer and Japanese translator for modern Linux desktop environments. Mainly working for @elementary in my free time.

Japan flagJapan
Languages: Vala, C++, JavaScript, Python, PHP, Meson, C, HTML, SCSS
Total Contributions
1.46K
Breakdown
Pull Requests
764
Reviews
497
Issues
194
Repositories
7
Followers
115
Global Rank
1094
Ken’ichiro Oyama avatar

Ken’ichiro Oyama

Japan flagFukuoka, JAPAN
Languages: JavaScript, Ruby, Go
Total Contributions
1.46K
Breakdown
Pull Requests
967
Reviews
420
Issues
49
Repositories
26
Followers
754
Global Rank
1095
Go Sueyoshi avatar

Go Sueyoshi

Japan flagJapan
Languages: Ruby, Shell, Java
Total Contributions
1.46K
Breakdown
Pull Requests
1082
Reviews
227
Issues
124
Repositories
27
Followers
412
Global Rank
1098
Masafumi Koba avatar

Masafumi Koba

❤️ Ruby / Web / Emacs

Japan flagTokyo, Japan
Languages: Ruby, Shell, JavaScript
Total Contributions
1.45K
Breakdown
Pull Requests
534
Reviews
872
Issues
28
Repositories
14
Followers
101
Global Rank
1112
Yu Watanabe avatar

Yu Watanabe

Japan flagTokyo, Japan
Languages: C, Shell, Python, SCSS
Total Contributions
1.44K
Breakdown
Pull Requests
401
Reviews
1026
Issues
11
Repositories
4
Followers
258
Global Rank
1124
Dean Herbert avatar

Dean Herbert

(๑・ω・๑)

Japan flagJapan
Languages: C#, PHP, Markdown, Go
Total Contributions
1.42K
Breakdown
Pull Requests
299
Reviews
1068
Issues
57
Repositories
0
Followers
5.22K
Global Rank
1145
Mizoue Atsushi avatar

Mizoue Atsushi

Japan flagTokyo. Japan.
Languages: Vim Script, TypeScript, Astro, JavaScript
Total Contributions
1.41K
Breakdown
Pull Requests
1067
Reviews
338
Issues
0
Repositories
0
Followers
76
Global Rank
1161
Chris Sotraidis avatar

Chris Sotraidis

Product, automation and developer tools. I also build unofficial game adaptations and write Spatial Awareness.

Japan flagTokyo, Japan
Languages: TypeScript, C, Kotlin, Shell, HTML, JavaScript, C++
Total Contributions
1.40K
Breakdown
Pull Requests
1289
Reviews
7
Issues
35
Repositories
68
Followers
181
Global Rank
1172