committers.top

A list of the most active GitHub users

Most active GitHub users in Japan

This is a list of most active GitHub users in Japan over the past year. Other countries/regions can be found here. This list was generated at 2026-10-02 01:33:29 +0000 and machine-readable JSON is available for:

This list is generated with this piece of code. The logic is as follows (in pseudocode): 

githubUsers.sort(_.followers)
           .filter(_.location == 'Japan') 
           .take(1000)
           .sort(_.contributions)
           .take(256)

This list contains all public contributions for each user. There are 142846 total users in the region and you need at least 197 followers to be on this list.

Badges are also available, which you can include on your profile pages. Simply include the following markdown for users: 

[![committers.top badge](https://user-badge.committers.top/japan_public/USERNAME.svg)](https://user-badge.committers.top/japan_public/USERNAME)
For organizations, you need to use a slightly different markup: 
[![committers.top badge](https://org-badge.committers.top/japan_public/ORGNAME.svg)](https://org-badge.committers.top/japan_public/ORGNAME)
In case you aren't currently ranked on this page, you'll simply receive an "unranked" badge.

Rank User Contribs Picture
1. MagicalTux
(Mark Karpelès)		 43632 Avatar for MagicalTux
2. refirst11
(Sou Watanabe)		 37529 Avatar for refirst11
3. tokuhirom
(Tokuhiro Matsuno)		 31187 Avatar for tokuhirom
4. rsasaki0109
(Ryohei Sasaki)		 29941 Avatar for rsasaki0109
5. mizchi
(Kotaro Chikuba)		 25723 Avatar for mizchi
6. ubugeeei
(ubugeeei)		 24186 Avatar for ubugeeei
7. j5ik2o
(Junichi Kato)		 19407 Avatar for j5ik2o
8. kurone-kito
(Kuroné Kito (黒音キト))		 19385 Avatar for kurone-kito
9. fumiya-kume
(kuu(Fumiya Kume))		 17842 Avatar for fumiya-kume
10. yuiseki
(yuiseki)		 17553 Avatar for yuiseki
11. houko
(Evan)		 17464 Avatar for houko
12. zonuexe
(USAMI Kenta)		 15661 Avatar for zonuexe
13. syoyo
(Syoyo Fujita)		 14984 Avatar for syoyo
14. mizzy
(Gosuke Miyashita)		 13681 Avatar for mizzy
15. lhl
(Leonard)		 13369 Avatar for lhl
16. lestrrat
(lestrrat)		 12956 Avatar for lestrrat
17. unhappychoice
(Yuji Ueki)		 12792 Avatar for unhappychoice
18. kawasima
(Yoshitaka Kawashima)		 12778 Avatar for kawasima
19. shogo82148
(ICHINOSE Shogo)		 11789 Avatar for shogo82148
20. bannzai
(bannzai)		 11030 Avatar for bannzai
21. ykzts
(Yamagishi Kazutoshi)		 10771 Avatar for ykzts
22. sile
(Takeru Ohta)		 10686 Avatar for sile
23. matz
(Yukihiro "Matz" Matsumoto)		 10553 Avatar for matz
24. take-cheeze
(Takeshi Watanabe)		 9958 Avatar for take-cheeze
25. yanorei32
(Ray Yano | あねてあ)		 9832 Avatar for yanorei32
26. hsbt
(Hiroshi SHIBATA)		 9671 Avatar for hsbt
27. tekezo
(Takayama Fumihiko)		 9398 Avatar for tekezo
28. miyako
(Keisuke Miyako)		 9334 Avatar for miyako
29. ryota-murakami
(Ryota Murakami)		 9300 Avatar for ryota-murakami
30. koriym
(Akihito Koriyama)		 9081 Avatar for koriym
31. xuwei-k
(kenji yoshida)		 9045 Avatar for xuwei-k
32. 1amageek
(1amageek)		 8975 Avatar for 1amageek
33. zero-0002
(Zero Dev)		 8725 Avatar for zero-0002
34. kmizu
(Kota Mizushima)		 8688 Avatar for kmizu
35. ko1
(Koichi Sasada)		 8328 Avatar for ko1
36. winebarrel
(Genki Sugawara)		 8228 Avatar for winebarrel
37. k1LoW
(Ken’ichiro Oyama)		 8052 Avatar for k1LoW
38. mattn
(mattn)		 7980 Avatar for mattn
39. sue445
(Go Sueyoshi)		 7860 Avatar for sue445
40. taiki-e
(Taiki Endo)		 7810 Avatar for taiki-e
41. YumNumm
(Ryotaro Onoue)		 7765 Avatar for YumNumm
42. sksat
(sksat)		 7522 Avatar for sksat
43. zchee
(Koichi Shiraishi)		 7406 Avatar for zchee
44. manman4
(manman4)		 7353 Avatar for manman4
45. making
(Toshiaki Maki)		 7258 Avatar for making
46. gfx
(FUJI Goro)		 7230 Avatar for gfx
47. guitarrapc
(Ikiru Yoshizaki)		 7177 Avatar for guitarrapc
48. wkentaro
(Kentaro Wada)		 6957 Avatar for wkentaro
49. takahashim
(Masayoshi Takahashi)		 6860 Avatar for takahashim
50. EdamAme-x
(EdamAmex)		 6842 Avatar for EdamAme-x
51. hakatashi
(Koki Takahashi)		 6809 Avatar for hakatashi
52. tk0miya
(Takeshi KOMIYA)		 6508 Avatar for tk0miya
53. tkoyama010
(Tetsuo Koyama)		 6396 Avatar for tkoyama010
54. suzuki-shunsuke
(Shunsuke Suzuki)		 6198 Avatar for suzuki-shunsuke
55. ursm
(Keita Urashima)		 6127 Avatar for ursm
56. akiomik
(Akiomi KAMAKURA)		 6082 Avatar for akiomik
57. bee-san
(Autumn (Bee))		 5981 Avatar for bee-san
58. sapphi-red
(翠)		 5977 Avatar for sapphi-red
59. mumoshu
(Yusuke Kuoka)		 5963 Avatar for mumoshu
60. onevcat
(Wei Wang)		 5961 Avatar for onevcat
61. yuki-kimoto
(Yuki Kimoto)		 5958 Avatar for yuki-kimoto
62. harupy
(Harutaka Kawamura)		 5944 Avatar for harupy
63. nateberkopec
(Nate Berkopec)		 5917 Avatar for nateberkopec
64. azu
(azu)		 5606 Avatar for azu
65. wajahat-ali-mir-dev
(Wajahat Ali Mir)		 5583 Avatar for wajahat-ali-mir-dev
66. dalance
(Naoya Hatta)		 5455 Avatar for dalance
67. hi-ogawa
(Hiroshi Ogawa)		 5299 Avatar for hi-ogawa
68. ianlewis
(Ian Lewis)		 5207 Avatar for ianlewis
69. SebastienGllmt
(Sebastien Guillemot)		 5183 Avatar for SebastienGllmt
70. 2bbb
(2bit)		 5081 Avatar for 2bbb
71. AkihiroSuda
(Akihiro Suda)		 4990 Avatar for AkihiroSuda
72. john-rocky
(Daisuke Majima (MLBoy))		 4900 Avatar for john-rocky
73. PINTO0309
(Katsuya Hyodo)		 4890 Avatar for PINTO0309
74. yamadashy
(Kazuki Yamada)		 4786 Avatar for yamadashy
75. sxzz
(Kevin Deng)		 4755 Avatar for sxzz
76. tmori
(Takashi Mori)		 4715 Avatar for tmori
77. himkt
(himkt)		 4615 Avatar for himkt
78. europanite
(europanite)		 4532 Avatar for europanite
79. mpyw
(mpyw)		 4525 Avatar for mpyw
80. kazupon
(kazuya kawaguchi)		 4523 Avatar for kazupon
81. Watson1978
(Shizuo Fujita)		 4477 Avatar for Watson1978
82. kou
(Sutou Kouhei)		 4445 Avatar for kou
83. fujiwara
(FUJIWARA Shunichiro)		 4424 Avatar for fujiwara
84. hakuturu583
(Masaya Kataoka)		 4404 Avatar for hakuturu583
85. komagata
(Masaki Komagata)		 4397 Avatar for komagata
86. halogenandtoast
(Matthew Mongeau)		 4244 Avatar for halogenandtoast
87. amatsuda
(Akira Matsuda)		 4185 Avatar for amatsuda
88. enliven17
(cankat)		 4136 Avatar for enliven17
89. mashharuki
(Haruki Kondo)		 4029 Avatar for mashharuki
90. koxudaxi
(Koudai Aono)		 3987 Avatar for koxudaxi
91. shimbaco
(Shimba, Koji)		 3948 Avatar for shimbaco
92. sevenc-nanashi
(Nanashi.)		 3875 Avatar for sevenc-nanashi
93. antfu
(Anthony Fu)		 3849 Avatar for antfu
94. lambdalisue
(Λlisue)		 3794 Avatar for lambdalisue
95. takano32
(TAKANO Mitsuhiro)		 3780 Avatar for takano32
96. toastkidjp
(Toast kid)		 3721 Avatar for toastkidjp
97. aviatesk
(Shuhei Kadowaki)		 3712 Avatar for aviatesk
98. gkjohnson
(Garrett Johnson)		 3708 Avatar for gkjohnson
99. hajimehoshi
(Hajime Hoshi)		 3617 Avatar for hajimehoshi
100. seratch
(Kazuhiro Sera)		 3607 Avatar for seratch
101. JohnTitor
(Yuki Okushi)		 3507 Avatar for JohnTitor
102. yug1224
(Yuji Yamaguchi)		 3504 Avatar for yug1224
103. tyoshikawa1106
(Taiki Yoshikawa)		 3482 Avatar for tyoshikawa1106
104. mosuka
(Minoru OSUKA)		 3437 Avatar for mosuka
105. yasulab
(Yohei Yasukawa)		 3433 Avatar for yasulab
106. sotarok
(Sotaro Karasawa)		 3387 Avatar for sotarok
107. Jannchie
(Jianqi Pan)		 3287 Avatar for Jannchie
108. Saqoosha
(Saqoosha)		 3281 Avatar for Saqoosha
109. znz
(Kazuhiro NISHIYAMA)		 3271 Avatar for znz
110. Hiroshiba
(Hiroshiba)		 3264 Avatar for Hiroshiba
111. walf443
(Keiji, Yoshimi)		 3142 Avatar for walf443
112. sigma7863
(Sigma)		 3106 Avatar for sigma7863
113. tatsuhiro-t
(Tatsuhiro Tsujikawa)		 3100 Avatar for tatsuhiro-t
114. eitsupi
()		 3055 Avatar for eitsupi
115. skanehira
(skanehira)		 3027 Avatar for skanehira
116. zapabob
(峯岸 亮)		 2997 Avatar for zapabob
117. rigaya
(rigaya)		 2993 Avatar for rigaya
118. shibukawa
(Yoshiki Shibukawa)		 2957 Avatar for shibukawa
119. bobbens
(Edgar Simo-Serra)		 2898 Avatar for bobbens
120. leaysgur
(Yuji Sugiura)		 2893 Avatar for leaysgur
121. tenzen-y
(Yuki Iwai)		 2893 Avatar for tenzen-y
122. 1024jp
(1024jp)		 2878 Avatar for 1024jp
123. tokoik
(Kohe Tokoi)		 2859 Avatar for tokoik
124. kishikawakatsumi
(Kishikawa Katsumi)		 2857 Avatar for kishikawakatsumi
125. anatawa12
(anatawa12)		 2824 Avatar for anatawa12
126. kexi
(Kei Nakayama)		 2819 Avatar for kexi
127. koic
(Koichi ITO)		 2807 Avatar for koic
128. peppy
(Dean Herbert)		 2802 Avatar for peppy
129. ksoichiro
(Soichiro Kashima)		 2799 Avatar for ksoichiro
130. sorairolake
(Shun Sakai)		 2775 Avatar for sorairolake
131. yuwata
(Yu Watanabe)		 2760 Avatar for yuwata
132. atsushieno
(Atsushi Eno)		 2750 Avatar for atsushieno
133. bmf-san
(Kenta Takeuchi)		 2743 Avatar for bmf-san
134. keijiro
(Keijiro Takahashi)		 2727 Avatar for keijiro
135. AdingApkgg
(Asuna)		 2722 Avatar for AdingApkgg
136. kitao
(Takashi Kitao)		 2649 Avatar for kitao
137. kyamagu
(Kota Yamaguchi)		 2617 Avatar for kyamagu
138. whitphx
(Yuichiro Tachibana (Tsuchiya))		 2614 Avatar for whitphx
139. rui314
(Rui Ueyama)		 2612 Avatar for rui314
140. koron
(MURAOKA Taro)		 2590 Avatar for koron
141. yutkat
(Yuta Katayama)		 2589 Avatar for yutkat
142. koji
(koji)		 2573 Avatar for koji
143. Songmu
(Masayuki Matsuki)		 2568 Avatar for Songmu
144. nobu
(Nobuyoshi Nakada)		 2530 Avatar for nobu
145. vrtmrz
(vorotamoroz)		 2521 Avatar for vrtmrz
146. trust-delta
(trust-delta)		 2488 Avatar for trust-delta
147. SethRobinson
(Seth Robinson)		 2478 Avatar for SethRobinson
148. cocoa-xu
(Cocoa)		 2464 Avatar for cocoa-xu
149. cpojer
(Christoph Nakazawa)		 2450 Avatar for cpojer
150. yusukebe
(Yusuke Wada)		 2447 Avatar for yusukebe
151. sideshowbarker
()		 2429 Avatar for sideshowbarker
152. Naturalclar
(Jesse Katsumata)		 2415 Avatar for Naturalclar
153. yahonda
(Yasuo Honda)		 2406 Avatar for yahonda
154. fujitatomoya
(Tomoya Fujita)		 2404 Avatar for fujitatomoya
155. t3tra-dev
(t3tra)		 2403 Avatar for t3tra-dev
156. shinobi-coder701
(Shinobi Coder)		 2353 Avatar for shinobi-coder701
157. bokuweb
(bokuweb)		 2348 Avatar for bokuweb
158. ymotongpoo
(Yoshi Yamaguchi)		 2344 Avatar for ymotongpoo
159. shyouhei
(卜部昌平)		 2246 Avatar for shyouhei
160. konn
(Hiromi Ishii)		 2244 Avatar for konn
161. kazunori279
(Kaz Sato)		 2178 Avatar for kazunori279
162. kazu-yamamoto
(Kazu Yamamoto)		 2164 Avatar for kazu-yamamoto
163. masuidrive
(Yuichiro MASUI)		 2163 Avatar for masuidrive
164. syuilo
(syuilo)		 2161 Avatar for syuilo
165. coliff
(Christian Oliff)		 2158 Avatar for coliff
166. kt3k
(Yoshiya Hinosawa)		 2144 Avatar for kt3k
167. XiaomingX
(Y11)		 2131 Avatar for XiaomingX
168. knu
(Akinori Musha)		 2116 Avatar for knu
169. iebb
(ieb)		 2112 Avatar for iebb
170. inokawa
()		 2068 Avatar for inokawa
171. norbusan
(Norbert Preining)		 2047 Avatar for norbusan
172. hashrock
(hashrock)		 2041 Avatar for hashrock
173. mayocream
(Mayo Takanashi)		 2019 Avatar for mayocream
174. c-bata
(c-bata)		 2018 Avatar for c-bata
175. TimOliver
(Tim Oliver)		 2014 Avatar for TimOliver
176. RobertTLange
(Robert Tjarko Lange)		 2007 Avatar for RobertTLange
177. ryotarai
(Ryota Arai)		 2007 Avatar for ryotarai
178. pocke
(Masataka Pocke Kuwabara)		 1995 Avatar for pocke
179. kazuho
(Kazuho Oku)		 1974 Avatar for kazuho
180. kazeburo
(Masahiro Nagano)		 1970 Avatar for kazeburo
181. babarot
(Masaki ISHIYAMA)		 1963 Avatar for babarot
182. nwtgck
(Ryo Ota)		 1954 Avatar for nwtgck
183. touyou
(Fujii Yosuke)		 1952 Avatar for touyou
184. mika-f
(MOCHIZUKI Kanon)		 1921 Avatar for mika-f
185. privatenumber
(Hiroki Osame)		 1916 Avatar for privatenumber
186. udzura
(Kondo Uchio)		 1907 Avatar for udzura
187. otiai10
(Hiromu OCHIAI)		 1902 Avatar for otiai10
188. dai
(dai)		 1856 Avatar for dai
189. takahirox
(Takahiro)		 1851 Avatar for takahirox
190. wadackel
(tsuyoshi wada)		 1827 Avatar for wadackel
191. sorah
(Sorah Fukumori)		 1814 Avatar for sorah
192. lacolaco
(Suguru Inatomi)		 1796 Avatar for lacolaco
193. qwexvf
(Maruchan)		 1779 Avatar for qwexvf
194. jsakamoto
()		 1765 Avatar for jsakamoto
195. grace2riku
()		 1744 Avatar for grace2riku
196. dai-shi
(Daishi Kato)		 1739 Avatar for dai-shi
197. drasticactions
(Tim Miller)		 1695 Avatar for drasticactions
198. ota-meshi
(Yosuke Ota)		 1692 Avatar for ota-meshi
199. yutannihilation
(Hiroaki Yutani)		 1686 Avatar for yutannihilation
200. nwiizo
(nwiizo)		 1672 Avatar for nwiizo
201. anuraaga
(Anuraag (Rag) Agrawal)		 1655 Avatar for anuraaga
202. ktoso
(Konrad `ktoso` Malawski)		 1646 Avatar for ktoso
203. melpon
(melpon)		 1640 Avatar for melpon
204. waylandzhang
(WAYLAND ZHANG)		 1636 Avatar for waylandzhang
205. NicolasDorier
(Nicolas Dorier)		 1629 Avatar for NicolasDorier
206. deepak1556
(Robo)		 1629 Avatar for deepak1556
207. neka-nat
(k-tanaka)		 1608 Avatar for neka-nat
208. mesqueeb
(Luca Ban)		 1606 Avatar for mesqueeb
209. Shougo
(Shougo)		 1599 Avatar for Shougo
210. hewigovens
(Tao Xu)		 1593 Avatar for hewigovens
211. fujita
(FUJITA Tomonori)		 1590 Avatar for fujita
212. noborus
(Noboru Saito)		 1588 Avatar for noborus
213. dsh0416
(Delton Ding)		 1573 Avatar for dsh0416
214. Comamoca
(Comamoca)		 1562 Avatar for Comamoca
215. takahirom
(Takahiro Menju)		 1561 Avatar for takahirom
216. eltociear
(Ikko Eltociear Ashimine)		 1555 Avatar for eltociear
217. hotchpotch
(Yuichi Tateno (secon))		 1541 Avatar for hotchpotch
218. yshrsmz
(Yasuhiro SHIMIZU)		 1528 Avatar for yshrsmz
219. domenic
(Domenic Denicola)		 1522 Avatar for domenic
220. fygar256
(Taisuke Maekawa)		 1514 Avatar for fygar256
221. taisukef
(Taisuke Fukuno)		 1498 Avatar for taisukef
222. motemen
(Hironao OTSUBO)		 1496 Avatar for motemen
223. lepture
(Hsiaoming Yang)		 1492 Avatar for lepture
224. sakai1250
(sakai taigo)		 1482 Avatar for sakai1250
225. cosmo0920
(Hiroshi Hatake)		 1475 Avatar for cosmo0920
226. peterzhu2118
(Peter Zhu)		 1471 Avatar for peterzhu2118
227. vraestoren
(huok)		 1455 Avatar for vraestoren
228. craftzdog
(Takuya Matsuyama)		 1444 Avatar for craftzdog
229. shimat
(shimat)		 1443 Avatar for shimat
230. yuuki
(Yuuki TSUBOUCHI)		 1438 Avatar for yuuki
231. runceel
(Kazuki Ota)		 1433 Avatar for runceel
232. int128
(Hidetake Iwata)		 1428 Avatar for int128
233. syohex
(Shohei YOSHIDA)		 1410 Avatar for syohex
234. p-x9
()		 1404 Avatar for p-x9
235. lightsound
(しまぶー)		 1402 Avatar for lightsound
236. cho45
(Satoh, Hiroh)		 1391 Avatar for cho45
237. rob0pup
(Robin)		 1388 Avatar for rob0pup
238. meganetaaan
(Shinya Ishikawa)		 1383 Avatar for meganetaaan
239. soutaro
(Soutaro Matsumoto)		 1381 Avatar for soutaro
240. yude
(Takehiro Ogura)		 1380 Avatar for yude
241. faithandbrave
(Akira Takahashi)		 1380 Avatar for faithandbrave
242. ThaddeusJiang
(天海 原 / AMAMI Hara)		 1379 Avatar for ThaddeusJiang
243. moriyoshi
(Moriyoshi Koizumi)		 1378 Avatar for moriyoshi
244. luadebug
(Saikari)		 1377 Avatar for luadebug
245. champierre
(Junya Ishihara)		 1369 Avatar for champierre
246. piroor
(YUKI "Piro" Hiroshi)		 1357 Avatar for piroor
247. tatsuyafujisaki
(Tatsuya Fujisaki)		 1348 Avatar for tatsuyafujisaki
248. hatoo
()		 1344 Avatar for hatoo
249. SachaG
(Sacha Greif)		 1332 Avatar for SachaG
250. uhyo
(uhyo)		 1331 Avatar for uhyo
251. siketyan
(Naoki Ikeguchi)		 1328 Avatar for siketyan
252. miurahr
(Hiroshi Miura)		 1318 Avatar for miurahr
253. aoi1026
(AOI)		 1306 Avatar for aoi1026
254. shibayan
(Tatsuro Shibamura)		 1296 Avatar for shibayan
255. rmackay9
(Randy Mackay)		 1293 Avatar for rmackay9
256. miya0001
(Takayuki Miyauchi)		 1292 Avatar for miya0001

Organizations

Rank Organization Members
1. ruby 12
2. asakusarb 7
3. vuejs 5
4. perl-users-jp 5
5. vim-jp 5
6. ruby-no-kai 5
7. conda-forge 4
8. web-platform-tests 4
9. ranguba 4
10. msgpack 4