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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
14.68K
Breakdown
Pull Requests
9951
Reviews
160
Issues
4482
Repositories
86
Followers
471
Global Rank
10
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, JavaScript, C, Raku, C++
Total Contributions
13.72K
Breakdown
Pull Requests
9999
Reviews
79
Issues
3583
Repositories
56
Followers
1.05K
Global Rank
13
Yamagishi Kazutoshi avatar

Yamagishi Kazutoshi

Japan flagJapan
Languages: TypeScript, Go, HCL, XSLT, JavaScript
Total Contributions
10.59K
Breakdown
Pull Requests
2936
Reviews
4538
Issues
3112
Repositories
6
Followers
371
Global Rank
25
kuu(Fumiya Kume) avatar

kuu(Fumiya Kume)

Software Engineer @mercari

Japan flagJapan
Languages: Kotlin, Swift, Shell, Go, Python
Total Contributions
9.04K
Breakdown
Pull Requests
8956
Reviews
7
Issues
62
Repositories
10
Followers
270
Global Rank
45
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
8.57K
Breakdown
Pull Requests
3590
Reviews
391
Issues
4580
Repositories
11
Followers
263
Global Rank
52
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
8.44K
Breakdown
Pull Requests
5348
Reviews
60
Issues
3019
Repositories
13
Followers
100
Global Rank
53
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
8.19K
Breakdown
Pull Requests
8052
Reviews
114
Issues
17
Repositories
10
Followers
929
Global Rank
56
CHIKAMATSU Naohiro avatar

CHIKAMATSU Naohiro

Japan flagNiigata, Japan
Languages: Go, Shell, Vala
Total Contributions
7.96K
Breakdown
Pull Requests
4660
Reviews
5
Issues
3243
Repositories
51
Followers
138
Global Rank
60
Takeshi Takatsudo avatar

Takeshi Takatsudo

Japan flagJapan
Languages: JavaScript, Python, TypeScript, Rust
Total Contributions
7.83K
Breakdown
Pull Requests
4501
Reviews
3
Issues
3259
Repositories
65
Followers
178
Global Rank
63
Gosuke Miyashita avatar

Gosuke Miyashita

Japan flagKanagawa, Japan
Languages: Go, HTML, Ruby, HCL, CSS
Total Contributions
6.83K
Breakdown
Pull Requests
3747
Reviews
0
Issues
3067
Repositories
14
Followers
594
Global Rank
77
Hiroshi Shinaoka avatar

Hiroshi Shinaoka

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

Japan flagSaitama, Japan
Languages: Rust, TypeScript, JavaScript, Python, C++, Fortran
Total Contributions
6.71K
Breakdown
Pull Requests
4183
Reviews
23
Issues
2460
Repositories
49
Followers
174
Global Rank
80
Kotaro Chikuba avatar

Kotaro Chikuba

Japan flagTokyo/Japan
Languages: Rust, MoonBit, Lean, TypeScript
Total Contributions
6.68K
Breakdown
Pull Requests
4278
Reviews
7
Issues
2312
Repositories
88
Followers
1.89K
Global Rank
81
Takeshi Watanabe avatar

Takeshi Watanabe

Japan flagNagano, Japan
Languages: C, Python, JavaScript, Ren'Py, C++
Total Contributions
6.11K
Breakdown
Pull Requests
5952
Reviews
80
Issues
51
Repositories
31
Followers
264
Global Rank
97
Ben Hsieh avatar

Ben Hsieh

Prompt machine 🤖

Japan flagTokyo, Japan
Languages: Rust
Total Contributions
6.07K
Breakdown
Pull Requests
2942
Reviews
78
Issues
3044
Repositories
1
Followers
128
Global Rank
101
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++, SystemVerilog, Python, Rust, TypeScript, Swift
Total Contributions
5.52K
Breakdown
Pull Requests
1865
Reviews
1861
Issues
1797
Repositories
0
Followers
72
Global Rank
123
Ryohei Sasaki avatar

Ryohei Sasaki

Software Engineer at MAP IV(TIER IV group)

Japan flagJapan
Languages: C++, Python, Rust
Total Contributions
5.28K
Breakdown
Pull Requests
5117
Reviews
13
Issues
82
Repositories
64
Followers
755
Global Rank
132
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
5.08K
Breakdown
Pull Requests
2541
Reviews
8
Issues
2475
Repositories
58
Followers
420
Global Rank
142
kobaken avatar

kobaken

Japan flagTokyo, Japan
Languages: Perl, Python, Lua, HTML, TypeScript
Total Contributions
4.72K
Breakdown
Pull Requests
3406
Reviews
28
Issues
1264
Repositories
19
Followers
80
Global Rank
164
Sakamoto, Kazunori avatar

Sakamoto, Kazunori

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

Japan flagJapan
Languages: TypeScript, JavaScript, Rust, Go
Total Contributions
4.55K
Breakdown
Pull Requests
4148
Reviews
5
Issues
382
Repositories
18
Followers
96
Global Rank
173
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: C++, TypeScript, JavaScript, C
Total Contributions
4.36K
Breakdown
Pull Requests
2203
Reviews
32
Issues
2049
Repositories
78
Followers
86
Global Rank
188
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
4.14K
Breakdown
Pull Requests
1339
Reviews
1330
Issues
1464
Repositories
10
Followers
105
Global Rank
209
Yoshitaka Kawashima avatar

Yoshitaka Kawashima

Japan flagTokyo, Japan
Languages: Java, Clojure, TypeScript, Emacs Lisp
Total Contributions
4.10K
Breakdown
Pull Requests
2281
Reviews
12
Issues
1788
Repositories
16
Followers
365
Global Rank
215
Shunsuke Suzuki avatar

Shunsuke Suzuki

Platform Engineer / OSS Developer / Go

Japan flagTokyo, Japan
Languages: Go, JavaScript, Shell
Total Contributions
4.04K
Breakdown
Pull Requests
3713
Reviews
127
Issues
162
Repositories
36
Followers
622
Global Rank
220
Yusuke Hayashi avatar

Yusuke Hayashi

Founder & CEO at haya Inc. | Software Engineer

Japan flagTokyo, Japan
Languages: Rust, JavaScript, Python, Go
Total Contributions
4.00K
Breakdown
Pull Requests
2516
Reviews
133
Issues
1279
Repositories
77
Followers
77
Global Rank
223
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
3.87K
Breakdown
Pull Requests
2152
Reviews
1
Issues
1703
Repositories
17
Followers
95
Global Rank
245
Yuji Ueki avatar

Yuji Ueki

＼ Software Engineer ／

Japan flagTokyo, Japan
Languages: Ruby, Shell, Rust, Kotlin
Total Contributions
3.79K
Breakdown
Pull Requests
651
Reviews
2590
Issues
531
Repositories
16
Followers
3.72K
Global Rank
257
bannzai avatar

bannzai

Japan flagTokyo, Japan
Languages: Dart, TypeScript, Swift
Total Contributions
3.77K
Breakdown
Pull Requests
2201
Reviews
29
Issues
1506
Repositories
30
Followers
313
Global Rank
261
Koudai Aono avatar

Koudai Aono

Python developer tools · Creator and maintainer of datamodel-code-generator · PEP 750 co-author · Open to work.

Japan flagTokyo, Japan
Languages: Python, Kotlin, C, Rust
Total Contributions
3.76K
Breakdown
Pull Requests
2835
Reviews
161
Issues
755
Repositories
8
Followers
578
Global Rank
262
Hiroki Kondo avatar

Hiroki Kondo

Japan flagJapan
Languages: TypeScript, Shell
Total Contributions
3.68K
Breakdown
Pull Requests
2214
Reviews
153
Issues
1307
Repositories
8
Followers
73
Global Rank
273
Kota Mizushima avatar

Kota Mizushima

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

Japan flagOsaka, Japan
Languages: Scala, JavaScript, HTML, Rust, TeX
Total Contributions
3.64K
Breakdown
Pull Requests
2729
Reviews
7
Issues
860
Repositories
42
Followers
519
Global Rank
279
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
3.62K
Breakdown
Pull Requests
3595
Reviews
4
Issues
19
Repositories
6
Followers
97
Global Rank
282
Steven Sacks avatar

Steven Sacks

AI Engineering Lead (Claude, Cursor, Codex, Gemini, Copilot) · Creator of GAIA · 32+ years shipping with discipline · React · TypeScript · Node

Japan flagTokyo, Japan
Languages: TypeScript, JavaScript, Rust
Total Contributions
3.53K
Breakdown
Pull Requests
2231
Reviews
1
Issues
1290
Repositories
5
Followers
61
Global Rank
296
Akihiko Watanabe avatar

Akihiko Watanabe

AI Engineer with a research background in natural language processing.

Japan flagTokyo, Japan
Languages: HTML
Total Contributions
3.50K
Breakdown
Pull Requests
2
Reviews
0
Issues
3495
Repositories
0
Followers
71
Global Rank
302
mpyw avatar

mpyw

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

Japan flagOsaka, Japan
Languages: PHP, C, Go, HTML, Shell, TypeScript
Total Contributions
3.49K
Breakdown
Pull Requests
2180
Reviews
16
Issues
1246
Repositories
46
Followers
580
Global Rank
304
Shizuo Fujita avatar

Shizuo Fujita

Ruby committer, RMagick maintainer, Fluentd committer

Japan flagJapan
Languages: Ruby, C
Total Contributions
3.32K
Breakdown
Pull Requests
1945
Reviews
1236
Issues
72
Repositories
69
Followers
285
Global Rank
327
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
3.31K
Breakdown
Pull Requests
1206
Reviews
1601
Issues
399
Repositories
99
Followers
377
Global Rank
328
Masahiro FUJIMOTO avatar

Masahiro FUJIMOTO

Japan flagUeda, Nagano, Japan
Languages: Markdown, Makefile, JavaScript
Total Contributions
3.28K
Breakdown
Pull Requests
2885
Reviews
391
Issues
1
Repositories
0
Followers
62
Global Rank
335
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
3.21K
Breakdown
Pull Requests
1982
Reviews
715
Issues
479
Repositories
39
Followers
53
Global Rank
352
Hiroshi Ogawa avatar

Hiroshi Ogawa

@vitest-dev @vitejs contributor

Japan flagJapan
Languages: TypeScript, JavaScript, Rust
Total Contributions
3.12K
Breakdown
Pull Requests
2023
Reviews
572
Issues
492
Repositories
36
Followers
487
Global Rank
367
翠 avatar

翠

@vitejs core team member

Japan flagJapan
Languages: JavaScript, TypeScript, Rust
Total Contributions
3.08K
Breakdown
Pull Requests
1369
Reviews
1390
Issues
304
Repositories
18
Followers
1.54K
Global Rank
377
watany avatar

watany

:heart: gustave-kun

Japan flagjapan
Languages: TypeScript, Python, Rust, Go, HCL
Total Contributions
3.02K
Breakdown
Pull Requests
1865
Reviews
4
Issues
1123
Repositories
33
Followers
52
Global Rank
392
Tsubasa SEKIGUCHI avatar

Tsubasa SEKIGUCHI

Full-stack creator.

Japan flagTokyo, Japan
Languages: TypeScript, Rust, HTML, Python
Total Contributions
2.95K
Breakdown
Pull Requests
2679
Reviews
39
Issues
229
Repositories
6
Followers
78
Global Rank
406
ICHINOSE Shogo avatar

ICHINOSE Shogo

goroutine concurrency expert

Japan flagJapan
Languages: Perl, Go, HTML, Python, Shell, C++, TypeScript
Total Contributions
2.93K
Breakdown
Pull Requests
1970
Reviews
890
Issues
35
Repositories
34
Followers
388
Global Rank
411
myuon avatar

myuon

Japan flagJapan
Languages: Go, Python, TypeScript, JavaScript, Rust
Total Contributions
2.89K
Breakdown
Pull Requests
1718
Reviews
143
Issues
1004
Repositories
21
Followers
158
Global Rank
422
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
537
Reviews
1953
Issues
301
Repositories
17
Followers
1.79K
Global Rank
439
Yuya Ebihara avatar

Yuya Ebihara

Committer @ Trino & Apache Polaris

Japan flagJapan
Languages: Java, Dockerfile, HTML
Total Contributions
2.81K
Breakdown
Pull Requests
601
Reviews
2120
Issues
70
Repositories
16
Followers
159
Global Rank
440
Yuki Iwai avatar

Yuki Iwai

@kubeflow WG Training | @kubernetes WG Batch

Japan flagTokyo, Japan
Languages: Go, Jupyter Notebook, HCL, Ruby, Python
Total Contributions
2.74K
Breakdown
Pull Requests
327
Reviews
2347
Issues
65
Repositories
5
Followers
202
Global Rank
459
Sutou Kouhei avatar

Sutou Kouhei

Japan flagTokyo, Japan
Languages: Ruby, C, Yacc, C++
Total Contributions
2.74K
Breakdown
Pull Requests
1041
Reviews
1297
Issues
330
Repositories
71
Followers
639
Global Rank
463
FUJI Goro avatar

FUJI Goro

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

Japan flagTokyo, Japan
Languages: TypeScript, Go, C++, Dart, LLVM, Rust, Dockerfile
Total Contributions
2.72K
Breakdown
Pull Requests
2447
Reviews
18
Issues
245
Repositories
9
Followers
1.04K
Global Rank
471
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, Gherkin
Total Contributions
2.71K
Breakdown
Pull Requests
1354
Reviews
1010
Issues
331
Repositories
20
Followers
186
Global Rank
473
Satoshi Terasaki avatar

Satoshi Terasaki

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

Japan flagMiyagi/Japan
Languages: Python, Julia, JavaScript, Fortran
Total Contributions
2.71K
Breakdown
Pull Requests
1518
Reviews
4
Issues
1152
Repositories
38
Followers
329
Global Rank
474
Jam Balaya avatar

Jam Balaya

Shogi and Mahjong Player♟️🀄

Japan flagJapan
Languages: PHP, Python, Go, JavaScript, Java
Total Contributions
2.70K
Breakdown
Pull Requests
2294
Reviews
325
Issues
57
Repositories
22
Followers
87
Global Rank
478
JaeSoon (jason) avatar

JaeSoon (jason)

Failure is an option here 👊🏻

Japan flagDaegu, Korea ⇄ Tokyo, Japan
Languages: TypeScript, Python, Go Template, Java
Total Contributions
2.63K
Breakdown
Pull Requests
2358
Reviews
14
Issues
220
Repositories
37
Followers
97
Global Rank
502
Takeshi KOMIYA avatar

Takeshi KOMIYA

Japan flagSaitama, Japan
Languages: Ruby, TypeScript, Python
Total Contributions
2.61K
Breakdown
Pull Requests
2543
Reviews
23
Issues
24
Repositories
23
Followers
229
Global Rank
507
Harutaka Kawamura avatar

Harutaka Kawamura

Japan flagJapan
Languages: Python, TypeScript, CSS, JavaScript, Batchfile, PowerShell
Total Contributions
2.61K
Breakdown
Pull Requests
756
Reviews
1774
Issues
67
Repositories
9
Followers
310
Global Rank
509
Genki Sugawara avatar

Genki Sugawara

🍺

Japan flagJapan
Languages: Go, Ruby, TypeScript
Total Contributions
2.56K
Breakdown
Pull Requests
2357
Reviews
121
Issues
2
Repositories
76
Followers
229
Global Rank
522
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
2.54K
Breakdown
Pull Requests
2117
Reviews
73
Issues
331
Repositories
23
Followers
174
Global Rank
525
Shuu avatar

Shuu

🍺🍺🍺🍺🍺

Japan flagTokyo, Japan
Languages: Nim, Jinja, Vim Script, HTML, C, Shell
Total Contributions
2.52K
Breakdown
Pull Requests
2428
Reviews
33
Issues
50
Repositories
13
Followers
132
Global Rank
532
Hirotomo Yamada avatar

Hirotomo Yamada

Japan flagJapan
Languages: TypeScript, JavaScript
Total Contributions
2.50K
Breakdown
Pull Requests
1298
Reviews
351
Issues
849
Repositories
4
Followers
101
Global Rank
543
Sho Kusano avatar

Sho Kusano

Founder of Space Pirates, LLC.

Japan flagChiba, Japan
Languages: TypeScript, Go, Ruby, JavaScript, Rust
Total Contributions
2.49K
Breakdown
Pull Requests
1222
Reviews
34
Issues
1235
Repositories
3
Followers
263
Global Rank
548
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
Total Contributions
2.45K
Breakdown
Pull Requests
1936
Reviews
6
Issues
484
Repositories
24
Followers
518
Global Rank
561
Tomachi avatar

Tomachi

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

Japan flagJapan
Languages: TypeScript, C#, Java, Vue, Python
Total Contributions
2.42K
Breakdown
Pull Requests
176
Reviews
1868
Issues
365
Repositories
10
Followers
61
Global Rank
576
Alejandro Cremades avatar

Alejandro Cremades

Japan flagItoshima, Japan
Languages: TypeScript
Total Contributions
2.41K
Breakdown
Pull Requests
96
Reviews
2224
Issues
79
Repositories
12
Followers
61
Global Rank
579
Takahiro avatar

Takahiro

Average level computer engineer

Japan flagNiigata Japan
Languages: JavaScript, TypeScript, HTML, Python
Total Contributions
2.38K
Breakdown
Pull Requests
1106
Reviews
41
Issues
1192
Repositories
38
Followers
841
Global Rank
592
Yuki Yamazaki avatar

Yuki Yamazaki

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

Japan flagJapan
Languages: TypeScript, JavaScript
Total Contributions
2.37K
Breakdown
Pull Requests
2228
Reviews
16
Issues
120
Repositories
1
Followers
58
Global Rank
597
Tomoya Fujita avatar

Tomoya Fujita

ROS PMC | Software Engineer / Architect

Japan flagJapan
Languages: C++, Python, C
Total Contributions
2.33K
Breakdown
Pull Requests
430
Reviews
1764
Issues
112
Repositories
24
Followers
493
Global Rank
614
kawa27 avatar

kawa27

Japan flagjapan
Languages: TypeScript, Shell, Go
Total Contributions
2.33K
Breakdown
Pull Requests
1139
Reviews
1
Issues
1163
Repositories
22
Followers
55
Global Rank
617
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
842
Reviews
13
Issues
1366
Repositories
59
Followers
159
Global Rank
638
Minoru OSUKA avatar

Minoru OSUKA

Japan flagJapan
Languages: Rust, Python
Total Contributions
2.28K
Breakdown
Pull Requests
1236
Reviews
25
Issues
1012
Repositories
3
Followers
248
Global Rank
640
Ryuki Maruyama avatar

Ryuki Maruyama

明記がない限り当方の全コードはCC BY-NC-ND 4.0です. 詳細なプロフィールは下記リンク参照.

Japan flagKisarazu, Chiba, Japan
Languages: Go, CSS, TypeScript, HTML, C, Dockerfile, Shell
Total Contributions
2.25K
Breakdown
Pull Requests
2212
Reviews
4
Issues
18
Repositories
13
Followers
150
Global Rank
651
Mark Karpelès avatar

Mark Karpelès

Japan flagTokyo, Japan
Languages: C, PHP, C++
Total Contributions
2.19K
Breakdown
Pull Requests
2018
Reviews
14
Issues
151
Repositories
6
Followers
288
Global Rank
679
cankat avatar

cankat

full-stack AI native designer @Monetari-Team

Japan flagFukui, Japan
Languages: TypeScript, JavaScript
Total Contributions
2.16K
Breakdown
Pull Requests
31
Reviews
331
Issues
1758
Repositories
41
Followers
307
Global Rank
693
T.Shinohara avatar

T.Shinohara

Programmer, Enginner

Japan flagJapan, Tokyo
Languages: TypeScript, Svelte, Astro, JavaScript
Total Contributions
2.10K
Breakdown
Pull Requests
1103
Reviews
1
Issues
965
Repositories
27
Followers
76
Global Rank
722
Jesse Katsumata avatar

Jesse Katsumata

Engineer @AnotherBall Member of @react-native-community

Japan flagChiba, Japan
Languages: TypeScript, HTML, MDX, Shell, JavaScript, Kotlin
Total Contributions
2.00K
Breakdown
Pull Requests
1196
Reviews
6
Issues
792
Repositories
7
Followers
442
Global Rank
774
Daiki Tomioka avatar

Daiki Tomioka

RoboCupJunior 2019 SoccerLightWeight 3rd place at Team LEGEND / RoboCup2024 Soccer SSL DivB 1st place at Team Ri-one

Japan flagShiga,Japan
Languages: Python, C++, Rust
Total Contributions
1.96K
Breakdown
Pull Requests
1177
Reviews
2
Issues
764
Repositories
20
Followers
59
Global Rank
805
Akiomi KAMAKURA avatar

Akiomi KAMAKURA

Bird lover.

Japan flagJapan
Languages: Rust, Go, JavaScript, Jupyter Notebook, Makefile, TypeScript
Total Contributions
1.96K
Breakdown
Pull Requests
1520
Reviews
42
Issues
382
Repositories
17
Followers
202
Global Rank
806
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, C++, Go, C, Perl
Total Contributions
1.96K
Breakdown
Pull Requests
1797
Reviews
49
Issues
17
Repositories
97
Followers
13.53K
Global Rank
807
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
1.95K
Breakdown
Pull Requests
1822
Reviews
17
Issues
37
Repositories
73
Followers
215
Global Rank
816
bokuweb avatar

bokuweb

Embedded / Web Engineer

Japan flagJapan
Languages: Rust, TypeScript, Assembly, JavaScript
Total Contributions
1.93K
Breakdown
Pull Requests
1840
Reviews
16
Issues
46
Repositories
31
Followers
1.00K
Global Rank
830
Yusuke Hirao avatar

Yusuke Hirao

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

Japan flagFukuoka, JAPAN
Languages: TypeScript, Astro, Svelte, JavaScript
Total Contributions
1.93K
Breakdown
Pull Requests
1165
Reviews
169
Issues
592
Repositories
0
Followers
55
Global Rank
833
Chen Yu avatar

Chen Yu

Was an engineer. Now I run AI agents on real work and open-source what falls out: sketchbook-style, MCP servers, gua. Tokyo.

Japan flagTokyo, Japan
Languages: TypeScript, JavaScript, Rust, HTML
Total Contributions
1.91K
Breakdown
Pull Requests
691
Reviews
642
Issues
502
Repositories
70
Followers
114
Global Rank
839
Omochice avatar

Omochice

Japan flagJapan
Languages: TypeScript, JavaScript, HTML, Lua, Nix
Total Contributions
1.89K
Breakdown
Pull Requests
1087
Reviews
731
Issues
40
Repositories
34
Followers
50
Global Rank
846
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
1.88K
Breakdown
Pull Requests
1524
Reviews
309
Issues
17
Repositories
26
Followers
1.68K
Global Rank
863
XPA avatar

XPA

そこら辺の学生 28卒

Japan flagTokyo, Japan
Languages: TypeScript, HCL, HTML, JavaScript
Total Contributions
1.85K
Breakdown
Pull Requests
1685
Reviews
11
Issues
136
Repositories
19
Followers
85
Global Rank
877
Kazuhiro Sera avatar

Kazuhiro Sera

Developer Experience at OpenAI

Japan flagTokyo, Japan
Languages: TypeScript, Python, Ruby
Total Contributions
1.84K
Breakdown
Pull Requests
1129
Reviews
700
Issues
9
Repositories
0
Followers
1.84K
Global Rank
891
Yuji Sugiura avatar

Yuji Sugiura

Japan flagJapan
Languages: JavaScript, TypeScript, GLSL, Rust, Astro
Total Contributions
1.81K
Breakdown
Pull Requests
1400
Reviews
298
Issues
105
Repositories
9
Followers
230
Global Rank
908
SlashNephy avatar

SlashNephy

(*˘︶˘*).｡.:*♡ Go, TypeScript, Kubernetes, Kotlin, .NET, Python

Japan flagTokyo, Japan
Languages: Go, Python, Dockerfile, C#, C++
Total Contributions
1.79K
Breakdown
Pull Requests
1169
Reviews
8
Issues
598
Repositories
17
Followers
131
Global Rank
923
otoneko. avatar

otoneko.

🇯🇵 20yo | ネタ駆動開発 | Half-stack? dev / Funny OSS dev / OSS contributor | Others: @oto-lab

Japan flagHakodate, Hokkaido, Japan
Languages: TypeScript, JavaScript, SVG
Total Contributions
1.78K
Breakdown
Pull Requests
1184
Reviews
27
Issues
475
Repositories
96
Followers
203
Global Rank
931
Yota Hamada avatar

Yota Hamada

I'm a software dev based in Tokyo. Authoring and maintaining dagu.sh and kitewell.app with wonderful contributors from across the globe.

Japan flagTokyo, Japan
Languages: Go, Ruby, TypeScript, Rust, Java, JavaScript
Total Contributions
1.76K
Breakdown
Pull Requests
1230
Reviews
275
Issues
243
Repositories
17
Followers
186
Global Rank
942
Coji Mizoguchi avatar

Coji Mizoguchi

Japan flagTokyo, Japan
Languages: TypeScript, Go
Total Contributions
1.75K
Breakdown
Pull Requests
1430
Reviews
1
Issues
293
Repositories
23
Followers
180
Global Rank
955
Akihito Koriyama avatar

Akihito Koriyama

A Tokyo based PHP developer @bearsunday @auraphp

Japan flagTokyo, Japan
Languages: PHP, HTML
Total Contributions
1.74K
Breakdown
Pull Requests
1308
Reviews
16
Issues
391
Repositories
29
Followers
261
Global Rank
959
haruki7049 avatar

haruki7049

I cannot speak English well

Japan flagJapan
Languages: Rust, Nix, Haskell, C++, C, Common Lisp
Total Contributions
1.71K
Breakdown
Pull Requests
905
Reviews
12
Issues
703
Repositories
87
Followers
85
Global Rank
988
Masaya Suzuki avatar

Masaya Suzuki

Software engineer / Technical book writer

Japan flagSaitama, Japan
Languages: Shell, TypeScript, Python, HTML, JavaScript
Total Contributions
1.70K
Breakdown
Pull Requests
747
Reviews
951
Issues
1
Repositories
5
Followers
57
Global Rank
990
Yudai Takada avatar

Yudai Takada

@ruby committer

Japan flagOsaka, Japan
Languages: Ruby, Yacc
Total Contributions
1.70K
Breakdown
Pull Requests
611
Reviews
975
Issues
18
Repositories
98
Followers
118
Global Rank
992
Ian Lewis avatar

Ian Lewis

Engineer #golang #python #typescript #rust

Japan flagTokyo, Japan
Languages: Shell, Go, TypeScript, Makefile, Vim Script, Python
Total Contributions
1.70K
Breakdown
Pull Requests
523
Reviews
733
Issues
439
Repositories
4
Followers
457
Global Rank
996
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, C++, Scala, Jupyter Notebook
Total Contributions
1.68K
Breakdown
Pull Requests
987
Reviews
473
Issues
164
Repositories
55
Followers
121
Global Rank
1017
Bem130 avatar

Bem130

作りたくなったものを衝動的に作る人 現在開発中のプロジェクト: neknaj/neplg2 @neknaj

Japan flagJapan
Languages: JavaScript, Rust, HTML
Total Contributions
1.67K
Breakdown
Pull Requests
1268
Reviews
60
Issues
321
Repositories
18
Followers
68
Global Rank
1025
Hiroaki NATSUME avatar

Hiroaki NATSUME

Structure Engineer / Architectural Informatics Engineer / Developer of Tunny

Japan flagTokyo, Japan
Languages: Rust, Python, Jupyter Notebook, Fortran, C++
Total Contributions
1.66K
Breakdown
Pull Requests
1001
Reviews
12
Issues
639
Repositories
4
Followers
135
Global Rank
1036
Masafumi Koba avatar

Masafumi Koba

❤️ Ruby / Web / Emacs

Japan flagTokyo, Japan
Languages: Ruby, Shell, JavaScript
Total Contributions
1.64K
Breakdown
Pull Requests
573
Reviews
1030
Issues
26
Repositories
14
Followers
103
Global Rank
1044
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
1.60K
Breakdown
Pull Requests
1443
Reviews
32
Issues
113
Repositories
16
Followers
69
Global Rank
1091