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 2026-06-12 14:13:18 +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 contributions for each user (public & private). There are 135793 total users in the region and you need at least 125 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_private/USERNAME.svg)](https://user-badge.committers.top/japan_private/USERNAME)
For organizations, you need to use a slightly different markup: 
[![committers.top badge](https://org-badge.committers.top/japan_private/ORGNAME.svg)](https://org-badge.committers.top/japan_private/ORGNAME)
In case you aren't currently ranked on this page, you'll simply receive an "unranked" badge.

Rank User Contribs Picture
1. bannzai
(bannzai)		 99360 Avatar for bannzai
2. Takazudo
(Takeshi Takatsudo)		 43276 Avatar for Takazudo
3. kishikawakatsumi
(Kishikawa Katsumi)		 41718 Avatar for kishikawakatsumi
4. baba-s
(baba_s)		 21637 Avatar for baba-s
5. cybergarage
(Satoshi Konno)		 21325 Avatar for cybergarage
6. mizchi
(Kotaro Chikuba)		 21200 Avatar for mizchi
7. yuiseki
(yuiseki)		 20737 Avatar for yuiseki
8. MagicalTux
(Mark Karpelès)		 20490 Avatar for MagicalTux
9. houko
(Evan)		 20473 Avatar for houko
10. terasakisatoshi
(Satoshi Terasaki)		 20233 Avatar for terasakisatoshi
11. unhappychoice
(Yuji Ueki)		 20006 Avatar for unhappychoice
12. Songmu
(Masayuki Matsuki)		 18443 Avatar for Songmu
13. shinh
(Shinichiro Hamaji)		 18371 Avatar for shinh
14. shikajiro
(shikajiro)		 17834 Avatar for shikajiro
15. normful
(Norman Sue)		 17803 Avatar for normful
16. dev-yakuza
(DeKu)		 16761 Avatar for dev-yakuza
17. ncaq
()		 16577 Avatar for ncaq
18. j5ik2o
(Junichi Kato)		 16485 Avatar for j5ik2o
19. fumiya-kume
(kuu(Fumiya Kume))		 16078 Avatar for fumiya-kume
20. tokuhirom
(Tokuhiro Matsuno)		 15694 Avatar for tokuhirom
21. winebarrel
(Genki Sugawara)		 15585 Avatar for winebarrel
22. Coordinate-Cat
(Ocat)		 15442 Avatar for Coordinate-Cat
23. manman4
(manman4)		 15307 Avatar for manman4
24. mizzy
(Gosuke Miyashita)		 15166 Avatar for mizzy
25. morizyun
(morizyun)		 14632 Avatar for morizyun
26. yuzushioh
(yuzushioh)		 14413 Avatar for yuzushioh
27. lhl
(Leonard)		 14311 Avatar for lhl
28. babarot
(Masaki ISHIYAMA)		 14303 Avatar for babarot
29. ukonpower
(ukonpower)		 14171 Avatar for ukonpower
30. amachang
(Hitoshi Amano)		 13703 Avatar for amachang
31. siketyan
(Naoki Ikeguchi)		 13210 Avatar for siketyan
32. harupy
(Harutaka Kawamura)		 12859 Avatar for harupy
33. nao1215
(CHIKAMATSU Naohiro)		 12253 Avatar for nao1215
34. bokuweb
(bokuweb)		 12249 Avatar for bokuweb
35. MH4GF
(Hirotaka Miyagi)		 12198 Avatar for MH4GF
36. suzuki-shunsuke
(Shunsuke Suzuki)		 12052 Avatar for suzuki-shunsuke
37. saltyshiomix
(Shiono Yoshihide)		 12038 Avatar for saltyshiomix
38. luvtechno
(Yoshinori Kawasaki)		 11449 Avatar for luvtechno
39. sile
(Takeru Ohta)		 11366 Avatar for sile
40. coliff
(Christian Oliff)		 11280 Avatar for coliff
41. k-takeuchi220
(Katsushi Takeuchi)		 11131 Avatar for k-takeuchi220
42. dtaniwaki
(Daisuke Taniwaki)		 10820 Avatar for dtaniwaki
43. YumNumm
(Ryotaro Onoue)		 10649 Avatar for YumNumm
44. riseshia
(Shia)		 10415 Avatar for riseshia
45. sksat
(sksat)		 10368 Avatar for sksat
46. myuon
(myuon)		 10245 Avatar for myuon
47. rsasaki0109
(Ryohei Sasaki)		 10138 Avatar for rsasaki0109
48. spinute
(Pin)		 10018 Avatar for spinute
49. ssig33
(ssig33)		 9978 Avatar for ssig33
50. guitarrapc
(Ikiru Yoshizaki)		 9765 Avatar for guitarrapc
51. ubugeeei
(ubugeeei)		 9546 Avatar for ubugeeei
52. yaneurao
(yaneurao)		 9490 Avatar for yaneurao
53. nkjzm
(Nakaji Kohki)		 9366 Avatar for nkjzm
54. sotetsuk
(Sotetsu KOYAMADA)		 9120 Avatar for sotetsuk
55. builtinnya
(Naoto Yokoyama)		 8926 Avatar for builtinnya
56. ashryanbeats
(Ash Ryan Arnwine)		 8920 Avatar for ashryanbeats
57. sue445
(Go Sueyoshi)		 8913 Avatar for sue445
58. seanchas116
(Ryohei Ikegami)		 8880 Avatar for seanchas116
59. ryota-murakami
(Ryota Murakami)		 8859 Avatar for ryota-murakami
60. xuwei-k
(kenji yoshida)		 8856 Avatar for xuwei-k
61. touyou
(Fujii Yosuke)		 8787 Avatar for touyou
62. sapphi-red
(翠)		 8722 Avatar for sapphi-red
63. technote-space
(Takahashi)		 8717 Avatar for technote-space
64. kjirou
(Kojiro Ishii)		 8701 Avatar for kjirou
65. shogo82148
(ICHINOSE Shogo)		 8609 Avatar for shogo82148
66. privatenumber
(Hiroki Osame)		 8558 Avatar for privatenumber
67. susieyy
(yohei sugigami)		 8521 Avatar for susieyy
68. yshrsmz
(Yasuhiro SHIMIZU)		 8466 Avatar for yshrsmz
69. h3poteto
(AkiraFukushima)		 8375 Avatar for h3poteto
70. bootjp
(Yoshiaki Ueda (bootjp))		 8292 Avatar for bootjp
71. nulltask
(Seiya KONNO)		 8285 Avatar for nulltask
72. nateberkopec
(Nate Berkopec)		 8280 Avatar for nateberkopec
73. okunokentaro
(OKUNOKENTARO)		 8250 Avatar for okunokentaro
74. lambdalisue
(Λlisue)		 8198 Avatar for lambdalisue
75. yanorei32
(Ray Yano | あねてあ)		 8186 Avatar for yanorei32
76. hsbt
(Hiroshi SHIBATA)		 8159 Avatar for hsbt
77. kurone-kito
(Kuroné Kito (黒音キト))		 7928 Avatar for kurone-kito
78. lan496
(Kohei Shinohara)		 7862 Avatar for lan496
79. dragon3
(Ryuzo Yamamoto)		 7860 Avatar for dragon3
80. wadackel
(tsuyoshi wada)		 7774 Avatar for wadackel
81. exoego
(TATSUNO “Taz” Yasuhiro)		 7740 Avatar for exoego
82. taiki-e
(Taiki Endo)		 7739 Avatar for taiki-e
83. shinaoka
(Hiroshi Shinaoka)		 7701 Avatar for shinaoka
84. yamadashy
(Kazuki Yamada)		 7695 Avatar for yamadashy
85. koriym
(Akihito Koriyama)		 7623 Avatar for koriym
86. koki-develop
(Koki Sato)		 7561 Avatar for koki-develop
87. kenn
(Kenn Ejima)		 7505 Avatar for kenn
88. fukayatsu
(Atsuo Fukaya)		 7501 Avatar for fukayatsu
89. m-mizutani
(Masayoshi Mizutani)		 7492 Avatar for m-mizutani
90. omochi
(omochimetaru)		 7461 Avatar for omochi
91. takahirom
(Takahiro Menju)		 7439 Avatar for takahirom
92. vvakame
(Masahiro Wakame)		 7420 Avatar for vvakame
93. otiai10
(Hiromu OCHIAI)		 7259 Avatar for otiai10
94. retoruto-carry
(れとるときゃりー)		 7199 Avatar for retoruto-carry
95. conao3
(Naoya Yamashita)		 7196 Avatar for conao3
96. ohbarye
(Masato Ohba)		 7174 Avatar for ohbarye
97. tekezo
(Takayama Fumihiko)		 7169 Avatar for tekezo
98. miyako
(Keisuke Miyako)		 7166 Avatar for miyako
99. horita-yuya
(horita-yuya)		 7145 Avatar for horita-yuya
100. nuitsjp
(Atsushi Nakamura)		 7137 Avatar for nuitsjp
101. a-r-g-v
(Yuki Mukasa ( a_r_g_v ))		 7117 Avatar for a-r-g-v
102. ianlewis
(Ian Lewis)		 7076 Avatar for ianlewis
103. toshi0383
(Toshihiro Suzuki)		 7061 Avatar for toshi0383
104. yuya-takeyama
(Yuya Takeyama)		 7008 Avatar for yuya-takeyama
105. yug1224
(Yuji Yamaguchi)		 7007 Avatar for yug1224
106. k-nasa
(nasa)		 7004 Avatar for k-nasa
107. k1LoW
(Ken’ichiro Oyama)		 6989 Avatar for k1LoW
108. tkoyama010
(Tetsuo Koyama)		 6960 Avatar for tkoyama010
109. azu
(azu)		 6943 Avatar for azu
110. rob0pup
(R²)		 6888 Avatar for rob0pup
111. airtoxin
(Ryoji Miyazato)		 6859 Avatar for airtoxin
112. eggplants
(haruna)		 6791 Avatar for eggplants
113. coji
(Coji Mizoguchi)		 6788 Avatar for coji
114. umihico
(Umihiko Iwasa)		 6723 Avatar for umihico
115. rjyo
(Jo)		 6722 Avatar for rjyo
116. champierre
(Junya Ishihara)		 6653 Avatar for champierre
117. kotarella1110
(Kotaro Sugawara)		 6626 Avatar for kotarella1110
118. sobri909
(Matt Greenfield)		 6615 Avatar for sobri909
119. laysakura
(Sho Nakatani)		 6609 Avatar for laysakura
120. Kanahiro
(Kanahiro Iguchi)		 6603 Avatar for Kanahiro
121. LumaKernel
(Luma)		 6500 Avatar for LumaKernel
122. ursm
(Keita Urashima)		 6489 Avatar for ursm
123. mattatz
(Masatatsu Nakamura)		 6441 Avatar for mattatz
124. Saqoosha
(Saqoosha)		 6406 Avatar for Saqoosha
125. edom18
(edo)		 6389 Avatar for edom18
126. hhatto
(Hideo Hattori)		 6351 Avatar for hhatto
127. mika-f
(MOCHIZUKI Kanon)		 6348 Avatar for mika-f
128. dvcrn
(David)		 6340 Avatar for dvcrn
129. atusy
()		 6322 Avatar for atusy
130. 1amageek
(1amageek)		 6281 Avatar for 1amageek
131. EdamAme-x
(EdamAmex)		 6239 Avatar for EdamAme-x
132. cutmail
(Tatsuya Arai)		 6234 Avatar for cutmail
133. naichilab
(naichi)		 6211 Avatar for naichilab
134. genki
(Genki Takiuchi)		 6191 Avatar for genki
135. magurotuna
(Yusuke Tanaka)		 6167 Avatar for magurotuna
136. 3846masa
(Masahiro Miyashiro (3846masa))		 6140 Avatar for 3846masa
137. hogelog
(hogelog)		 6137 Avatar for hogelog
138. seriaati
(seria)		 6119 Avatar for seriaati
139. sotarok
(Sotaro Karasawa)		 6095 Avatar for sotarok
140. kojix2
()		 6049 Avatar for kojix2
141. sys1yagi
(Toshihiro Yagi)		 6037 Avatar for sys1yagi
142. hakatashi
(Koki Takahashi)		 6019 Avatar for hakatashi
143. banyan
(Kohei Hasegawa)		 5989 Avatar for banyan
144. Code-Hex
(Kei Kamikawa)		 5981 Avatar for Code-Hex
145. rosylilly
(Sho Kusano)		 5935 Avatar for rosylilly
146. yasulab
(Yohei Yasukawa)		 5897 Avatar for yasulab
147. sxzz
(Kevin Deng)		 5866 Avatar for sxzz
148. kosukesaigusa
(Kosuke Saigusa)		 5851 Avatar for kosukesaigusa
149. UdonDa
(Udon)		 5801 Avatar for UdonDa
150. catnose99
(catnose)		 5795 Avatar for catnose99
151. hakuturu583
(Masaya Kataoka)		 5777 Avatar for hakuturu583
152. anchan828
(Keigo Ando)		 5770 Avatar for anchan828
153. mogaming217
(moga)		 5712 Avatar for mogaming217
154. waylandzhang
(WAYLAND ZHANG)		 5711 Avatar for waylandzhang
155. 2222-42
(Stephen S.H. a.k.a. 大王)		 5691 Avatar for 2222-42
156. yuki-kimoto
(Yuki Kimoto)		 5689 Avatar for yuki-kimoto
157. XiaomingX
(Y11)		 5681 Avatar for XiaomingX
158. wajahat-ali-mir-dev
(Wajahat Ali Mir)		 5676 Avatar for wajahat-ali-mir-dev
159. ngs
(Atsushi NAGASE)		 5669 Avatar for ngs
160. ogaclejapan
(ogaclejapan)		 5659 Avatar for ogaclejapan
161. mahata
(Yasunori MAHATA)		 5615 Avatar for mahata
162. hajimehoshi
(Hajime Hoshi)		 5615 Avatar for hajimehoshi
163. sota1235
(Sota Sugiura)		 5586 Avatar for sota1235
164. yohamta0
(Yota Hamada)		 5550 Avatar for yohamta0
165. katahiromz
(Katayama Hirofumi MZ)		 5542 Avatar for katahiromz
166. morizotter
(Morita Naoki)		 5524 Avatar for morizotter
167. lestrrat
(lestrrat)		 5453 Avatar for lestrrat
168. guo-yu
(Guo Yu)		 5432 Avatar for guo-yu
169. s2mr
(Kazumasa Shimomura)		 5428 Avatar for s2mr
170. akameco
(akameco)		 5401 Avatar for akameco
171. cxxxr
(cxxxr)		 5385 Avatar for cxxxr
172. seratch
(Kazuhiro Sera)		 5348 Avatar for seratch
173. okotaku
(takuoko)		 5318 Avatar for okotaku
174. boxp
(Keitaro Takeuchi)		 5316 Avatar for boxp
175. ryotarai
(Ryota Arai)		 5296 Avatar for ryotarai
176. kexi
(Kei Nakayama)		 5284 Avatar for kexi
177. juno
(Junya Ogura)		 5283 Avatar for juno
178. Hiroshiba
(Hiroshiba)		 5268 Avatar for Hiroshiba
179. malaybaku
(Baku Dreameater)		 5232 Avatar for malaybaku
180. breezewish
(Wish)		 5226 Avatar for breezewish
181. 2bbb
(2bit)		 5208 Avatar for 2bbb
182. hi-ogawa
(Hiroshi Ogawa)		 5202 Avatar for hi-ogawa
183. r-plus
(r-plus)		 5195 Avatar for r-plus
184. bmf-san
(Kenta Takeuchi)		 5191 Avatar for bmf-san
185. john-rocky
(Daisuke Majima)		 5182 Avatar for john-rocky
186. tk0miya
(Takeshi KOMIYA)		 5167 Avatar for tk0miya
187. kaelaela
(Yuichi Maekawa)		 5146 Avatar for kaelaela
188. hirokidaichi
(hirokidaichi)		 5127 Avatar for hirokidaichi
189. mackysoft
(Makihiro)		 5118 Avatar for mackysoft
190. TakuSemba
(TakuSemba)		 5088 Avatar for TakuSemba
191. kyubuns
(kyubuns)		 5082 Avatar for kyubuns
192. hideakitai
(Hideaki Tai)		 5066 Avatar for hideakitai
193. shu223
(Shuichi Tsutsumi)		 5062 Avatar for shu223
194. JohnTitor
(Yuki Okushi)		 5053 Avatar for JohnTitor
195. snoozer05
(SHIMADA Koji)		 5040 Avatar for snoozer05
196. jfbastien
(JF Bastien)		 5040 Avatar for jfbastien
197. tnantoka
(Tatsuya Tobioka)		 5005 Avatar for tnantoka
198. timakin
(Seiji Takahashi)		 4965 Avatar for timakin
199. masutaka
(Takashi Masuda)		 4963 Avatar for masutaka
200. Him188
(Him188)		 4943 Avatar for Him188
201. newraina
(newraina)		 4937 Avatar for newraina
202. amake
(Aaron Madlon-Kay)		 4930 Avatar for amake
203. deatiger
(deatiger)		 4908 Avatar for deatiger
204. dennybritz
(Denny Britz)		 4878 Avatar for dennybritz
205. RobertTLange
(Robert Tjarko Lange)		 4868 Avatar for RobertTLange
206. europanite
(europanite)		 4834 Avatar for europanite
207. wkentaro
(Kentaro Wada)		 4819 Avatar for wkentaro
208. ssssota
(TOMIKAWA Sotaro)		 4799 Avatar for ssssota
209. onevcat
(Wei Wang)		 4788 Avatar for onevcat
210. ko1
(Koichi Sasada)		 4785 Avatar for ko1
211. ochyai
(Yoichi OCHIAI)		 4762 Avatar for ochyai
212. hotchpotch
(Yuichi Tateno (secon))		 4731 Avatar for hotchpotch
213. wkh237
(Ben Hsieh)		 4698 Avatar for wkh237
214. eiel
(HIMURA Tomohiko)		 4664 Avatar for eiel
215. uribo
(Shinya Uryu)		 4644 Avatar for uribo
216. yukukotani
(Yuku Kotani)		 4636 Avatar for yukukotani
217. yuichkun
(Yuichi Yogo)		 4625 Avatar for yuichkun
218. hymkor
(HAYAMA Kaoru)		 4617 Avatar for hymkor
219. iebb
(ieb)		 4594 Avatar for iebb
220. AkihiroSuda
(Akihiro Suda)		 4538 Avatar for AkihiroSuda
221. AdingApkgg
(Asuna)		 4528 Avatar for AdingApkgg
222. masuidrive
(Yuichiro MASUI)		 4519 Avatar for masuidrive
223. anatawa12
(anatawa12)		 4496 Avatar for anatawa12
224. fetus-hina
(AIZAWA Hina)		 4495 Avatar for fetus-hina
225. kou
(Sutou Kouhei)		 4483 Avatar for kou
226. peppy
(Dean Herbert)		 4478 Avatar for peppy
227. nwiizo
(nwiizo)		 4477 Avatar for nwiizo
228. baryon
(LI Long)		 4445 Avatar for baryon
229. hikettei
(hikettei)		 4444 Avatar for hikettei
230. sorah
(Sorah Fukumori)		 4434 Avatar for sorah
231. mesqueeb
(Luca Ban)		 4430 Avatar for mesqueeb
232. rikusato0
(Riku Sato)		 4387 Avatar for rikusato0
233. GalvinGao
(GalvinGao)		 4386 Avatar for GalvinGao
234. Yesterday17
(Yesterday17)		 4379 Avatar for Yesterday17
235. halogenandtoast
(Matthew Mongeau)		 4367 Avatar for halogenandtoast
236. inokawa
()		 4362 Avatar for inokawa
237. lacolaco
(Suguru Inatomi)		 4343 Avatar for lacolaco
238. ykzts
(Yamagishi Kazutoshi)		 4334 Avatar for ykzts
239. mattn
(mattn)		 4327 Avatar for mattn
240. peaceiris
(Shohei Ueda)		 4318 Avatar for peaceiris
241. daitomanabe
(Daito Manabe)		 4315 Avatar for daitomanabe
242. TimOliver
(Tim Oliver)		 4295 Avatar for TimOliver
243. jun06t
(Junpei Tsuji)		 4268 Avatar for jun06t
244. syumai
(syumai)		 4265 Avatar for syumai
245. IloveNooodles
(Muhammad Garebaldhie Er Rahman)		 4242 Avatar for IloveNooodles
246. sivchari
(Takuma Shibuya)		 4230 Avatar for sivchari
247. linyows
(Tomohisa Oda)		 4217 Avatar for linyows
248. ksoichiro
(Soichiro Kashima)		 4216 Avatar for ksoichiro
249. dahatake
(Daiyu Hatakeyama)		 4208 Avatar for dahatake
250. trust-delta
(trust-delta)		 4204 Avatar for trust-delta
251. mori-atsushi
(Mori Atsushi)		 4191 Avatar for mori-atsushi
252. hamster1963
(仓鼠)		 4184 Avatar for hamster1963
253. sevenc-nanashi
(Nanashi.)		 4183 Avatar for sevenc-nanashi
254. kyo-ago
(kyo_ago)		 4157 Avatar for kyo-ago
255. Jannchie
(Jianqi Pan)		 4149 Avatar for Jannchie
256. upamune
(Yu SERIZAWA)		 4149 Avatar for upamune

Organizations

Rank Organization Members
1. reviewdog 5
2. potatotips 4
3. ruby 4
4. asakusarb 4
5. emacs-jp 4
6. epicgames 4
7. mercari 4
8. kanmu 3
9. hiki 3
10. ruby-no-kai 3