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 2026-04-19 19:21:55 +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 133323 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)		 99314 Avatar for bannzai
2. kishikawakatsumi
(Kishikawa Katsumi)		 40032 Avatar for kishikawakatsumi
3. baba-s
(baba_s)		 29085 Avatar for baba-s
4. Takazudo
(Takeshi Takatsudo)		 21815 Avatar for Takazudo
5. yuiseki
(yuiseki)		 20802 Avatar for yuiseki
6. Songmu
(Masayuki Matsuki)		 17479 Avatar for Songmu
7. shinh
(Shinichiro Hamaji)		 17242 Avatar for shinh
8. shikajiro
(shikajiro)		 16072 Avatar for shikajiro
9. amachang
(Hitoshi Amano)		 15322 Avatar for amachang
10. unhappychoice
(Yuji Ueki)		 15226 Avatar for unhappychoice
11. manman4
(manman4)		 14990 Avatar for manman4
12. mizchi
(Kotaro Chikuba)		 14769 Avatar for mizchi
13. Coordinate-Cat
(Ocat)		 14697 Avatar for Coordinate-Cat
14. winebarrel
(Genki Sugawara)		 14658 Avatar for winebarrel
15. morizyun
(morizyun)		 14284 Avatar for morizyun
16. ncaq
()		 14126 Avatar for ncaq
17. dev-yakuza
(DeKu)		 14094 Avatar for dev-yakuza
18. tokuhirom
(Tokuhiro Matsuno)		 13886 Avatar for tokuhirom
19. j5ik2o
(Junichi Kato)		 13652 Avatar for j5ik2o
20. yuzushioh
(yuzushioh)		 13627 Avatar for yuzushioh
21. terasakisatoshi
(Satoshi Terasaki)		 13233 Avatar for terasakisatoshi
22. siketyan
(Naoki Ikeguchi)		 13166 Avatar for siketyan
23. babarot
(Masaki ISHIYAMA)		 12820 Avatar for babarot
24. cybergarage
(Satoshi Konno)		 12696 Avatar for cybergarage
25. normful
(Norman Sue)		 12398 Avatar for normful
26. suzuki-shunsuke
(Shunsuke Suzuki)		 12318 Avatar for suzuki-shunsuke
27. ukonpower
(ukonpower)		 12008 Avatar for ukonpower
28. umihico
(Umihiko Iwasa)		 11968 Avatar for umihico
29. fumiya-kume
(kuu(Fumiya Kume))		 11768 Avatar for fumiya-kume
30. saltyshiomix
(Shiono Yoshihide)		 11478 Avatar for saltyshiomix
31. coliff
(Christian Oliff)		 11460 Avatar for coliff
32. builtinnya
(Naoto Yokoyama)		 11302 Avatar for builtinnya
33. sile
(Takeru Ohta)		 11250 Avatar for sile
34. MH4GF
(Hirotaka Miyagi)		 10928 Avatar for MH4GF
35. houko
(Evan)		 10600 Avatar for houko
36. ssig33
(ssig33)		 10580 Avatar for ssig33
37. mizzy
(Gosuke Miyashita)		 10318 Avatar for mizzy
38. guitarrapc
(Ikiru Yoshizaki)		 10229 Avatar for guitarrapc
39. riseshia
(Shia)		 10114 Avatar for riseshia
40. luvtechno
(Yoshinori Kawasaki)		 9707 Avatar for luvtechno
41. YumNumm
(Ryotaro Onoue)		 9593 Avatar for YumNumm
42. dtaniwaki
(Daisuke Taniwaki)		 9500 Avatar for dtaniwaki
43. sue445
(Go Sueyoshi)		 9101 Avatar for sue445
44. yaneurao
(yaneurao)		 8999 Avatar for yaneurao
45. h3poteto
(AkiraFukushima)		 8872 Avatar for h3poteto
46. ashryanbeats
(Ash Ryan Arnwine)		 8736 Avatar for ashryanbeats
47. nkjzm
(Nakaji Kohki)		 8670 Avatar for nkjzm
48. seanchas116
(Ryohei Ikegami)		 8564 Avatar for seanchas116
49. spinute
(Pin)		 8505 Avatar for spinute
50. sapphi-red
(翠)		 8494 Avatar for sapphi-red
51. bokuweb
(bokuweb)		 8460 Avatar for bokuweb
52. cpojer
(Christoph Nakazawa)		 8399 Avatar for cpojer
53. iamdulanga
(Dulanga Dasanayake)		 8391 Avatar for iamdulanga
54. yanorei32
(Ray Yano | あねてあ)		 8280 Avatar for yanorei32
55. harupy
(Harutaka Kawamura)		 8229 Avatar for harupy
56. sksat
(sksat)		 8138 Avatar for sksat
57. ryota-murakami
(Ryota Murakami)		 8099 Avatar for ryota-murakami
58. sotetsuk
(Sotetsu KOYAMADA)		 8080 Avatar for sotetsuk
59. nuitsjp
(Atsushi Nakamura)		 8066 Avatar for nuitsjp
60. koki-develop
(Koki Sato)		 7963 Avatar for koki-develop
61. myuon
(myuon)		 7958 Avatar for myuon
62. lambdalisue
(Λlisue)		 7818 Avatar for lambdalisue
63. dragon3
(Ryuzo Yamamoto)		 7749 Avatar for dragon3
64. yshrsmz
(Yasuhiro SHIMIZU)		 7747 Avatar for yshrsmz
65. xuwei-k
(kenji yoshida)		 7742 Avatar for xuwei-k
66. vvakame
(Masahiro Wakame)		 7700 Avatar for vvakame
67. omochi
(omochimetaru)		 7640 Avatar for omochi
68. shogo82148
(ICHINOSE Shogo)		 7445 Avatar for shogo82148
69. tkoyama010
(Tetsuo Koyama)		 7368 Avatar for tkoyama010
70. touyou
(Fujii Yosuke)		 7361 Avatar for touyou
71. takahirom
(Takahiro Menju)		 7305 Avatar for takahirom
72. eggplants
(haruna)		 7294 Avatar for eggplants
73. k-nasa
(nasa)		 7275 Avatar for k-nasa
74. privatenumber
(Hiroki Osame)		 7180 Avatar for privatenumber
75. hsbt
(Hiroshi SHIBATA)		 7170 Avatar for hsbt
76. horita-yuya
(horita-yuya)		 7135 Avatar for horita-yuya
77. nulltask
(Seiya KONNO)		 7039 Avatar for nulltask
78. azu
(azu)		 7026 Avatar for azu
79. dvcrn
(David)		 6977 Avatar for dvcrn
80. lhl
(Leonard)		 6896 Avatar for lhl
81. retoruto-carry
(retoruto-carry)		 6878 Avatar for retoruto-carry
82. taiki-e
(Taiki Endo)		 6846 Avatar for taiki-e
83. ohbarye
(Masato Ohba)		 6832 Avatar for ohbarye
84. kenn
(Kenn Ejima)		 6824 Avatar for kenn
85. miyako
(Keisuke Miyako)		 6770 Avatar for miyako
86. anchan828
(Keigo Ando)		 6720 Avatar for anchan828
87. hhatto
(Hideo Hattori)		 6594 Avatar for hhatto
88. mika-f
(MOCHIZUKI Kanon)		 6576 Avatar for mika-f
89. Kanahiro
(Kanahiro Iguchi)		 6567 Avatar for Kanahiro
90. technote-space
(Takahashi)		 6545 Avatar for technote-space
91. fukamachi
(Eitaro Fukamachi)		 6459 Avatar for fukamachi
92. 3846masa
(Masahiro Miyashiro (3846masa))		 6437 Avatar for 3846masa
93. MagicalTux
(Mark Karpelès)		 6381 Avatar for MagicalTux
94. wadackel
(tsuyoshi wada)		 6376 Avatar for wadackel
95. LumaKernel
(Luma)		 6371 Avatar for LumaKernel
96. tnantoka
(Tatsuya Tobioka)		 6367 Avatar for tnantoka
97. yasulab
(Yohei Yasukawa)		 6354 Avatar for yasulab
98. kjirou
(Kojiro Ishii)		 6333 Avatar for kjirou
99. ianlewis
(Ian Lewis)		 6319 Avatar for ianlewis
100. tekezo
(Takayama Fumihiko)		 6293 Avatar for tekezo
101. yamadashy
(Kazuki Yamada)		 6280 Avatar for yamadashy
102. okunokentaro
(OKUNOKENTARO)		 6240 Avatar for okunokentaro
103. a-r-g-v
(Yuki Mukasa ( a_r_g_v ))		 6238 Avatar for a-r-g-v
104. fukayatsu
(Atsuo Fukaya)		 6190 Avatar for fukayatsu
105. shinaoka
(Hiroshi Shinaoka)		 6112 Avatar for shinaoka
106. yug1224
(Yuji Yamaguchi)		 6112 Avatar for yug1224
107. laysakura
(Sho Nakatani)		 6104 Avatar for laysakura
108. k1LoW
(Ken’ichiro Oyama)		 6064 Avatar for k1LoW
109. atusy
()		 6015 Avatar for atusy
110. seriaati
(seria)		 5974 Avatar for seriaati
111. m-mizutani
(Masayoshi Mizutani)		 5970 Avatar for m-mizutani
112. sxzz
(Kevin Deng)		 5939 Avatar for sxzz
113. Him188
(Him188)		 5936 Avatar for Him188
114. kyubuns
(kyubuns)		 5921 Avatar for kyubuns
115. yuya-takeyama
(Yuya Takeyama)		 5893 Avatar for yuya-takeyama
116. airtoxin
(Ryoji Miyazato)		 5863 Avatar for airtoxin
117. yuki-kimoto
(Yuki Kimoto)		 5851 Avatar for yuki-kimoto
118. koriym
(Akihito Koriyama)		 5821 Avatar for koriym
119. susieyy
(yohei sugigami)		 5820 Avatar for susieyy
120. hakuturu583
(Masaya Kataoka)		 5778 Avatar for hakuturu583
121. genki
(Genki Takiuchi)		 5770 Avatar for genki
122. 2222-42
(Stephen S.H. a.k.a. 大王)		 5760 Avatar for 2222-42
123. coji
(Coji Mizoguchi)		 5759 Avatar for coji
124. sota1235
(Sota Sugiura)		 5739 Avatar for sota1235
125. hajimehoshi
(Hajime Hoshi)		 5712 Avatar for hajimehoshi
126. Saqoosha
(Saqoosha)		 5674 Avatar for Saqoosha
127. wajahat-ali-mir-dev
(Wajahat Ali Mir)		 5653 Avatar for wajahat-ali-mir-dev
128. s2mr
(Kazumasa Shimomura)		 5644 Avatar for s2mr
129. toshi0383
(Toshihiro Suzuki)		 5635 Avatar for toshi0383
130. mahata
(Yasunori MAHATA)		 5558 Avatar for mahata
131. naichilab
(naichi)		 5552 Avatar for naichilab
132. kojix2
()		 5547 Avatar for kojix2
133. hakatashi
(Koki Takahashi)		 5544 Avatar for hakatashi
134. catnose99
(catnose)		 5523 Avatar for catnose99
135. yottahmd
(Yota Hamada)		 5522 Avatar for yottahmd
136. rjyo
(Jo)		 5479 Avatar for rjyo
137. ogaclejapan
(ogaclejapan)		 5416 Avatar for ogaclejapan
138. katahiromz
(Katayama Hirofumi MZ)		 5415 Avatar for katahiromz
139. EdamAme-x
(EdamAmex)		 5392 Avatar for EdamAme-x
140. ssssota
(TOMIKAWA Sotaro)		 5368 Avatar for ssssota
141. champierre
(Junya Ishihara)		 5324 Avatar for champierre
142. seratch
(Kazuhiro Sera)		 5286 Avatar for seratch
143. ngs
(Atsushi NAGASE)		 5274 Avatar for ngs
144. himkt
(himkt)		 5268 Avatar for himkt
145. sys1yagi
(Toshihiro Yagi)		 5263 Avatar for sys1yagi
146. cxxxr
(cxxxr)		 5227 Avatar for cxxxr
147. cutmail
(Tatsuya Arai)		 5197 Avatar for cutmail
148. r-plus
(r-plus)		 5159 Avatar for r-plus
149. rsasaki0109
(rsasaki0109)		 5135 Avatar for rsasaki0109
150. mattatz
(Masatatsu Nakamura)		 5131 Avatar for mattatz
151. juno
(Junya Ogura)		 5123 Avatar for juno
152. dennybritz
(Denny Britz)		 5122 Avatar for dennybritz
153. hi-ogawa
(Hiroshi Ogawa)		 5083 Avatar for hi-ogawa
154. bootjp
(Yoshiaki Ueda (bootjp))		 5073 Avatar for bootjp
155. banyan
(Kohei Hasegawa)		 5066 Avatar for banyan
156. Hiroshiba
(Hiroshiba)		 5011 Avatar for Hiroshiba
157. boxp
(Keitaro Takeuchi)		 4969 Avatar for boxp
158. syumai
(syumai)		 4941 Avatar for syumai
159. otiai10
(Hiromu OCHIAI)		 4930 Avatar for otiai10
160. peppy
(Dean Herbert)		 4930 Avatar for peppy
161. mogaming217
(moga)		 4907 Avatar for mogaming217
162. masutaka
(Takashi Masuda)		 4872 Avatar for masutaka
163. TakuSemba
(TakuSemba)		 4864 Avatar for TakuSemba
164. kotarella1110
(Kotaro Sugawara)		 4852 Avatar for kotarella1110
165. AkihiroSuda
(Akihiro Suda)		 4840 Avatar for AkihiroSuda
166. sobri909
(Matt Greenfield)		 4799 Avatar for sobri909
167. kou
(Sutou Kouhei)		 4770 Avatar for kou
168. 1amageek
(1amageek)		 4744 Avatar for 1amageek
169. XiaomingX
(Y11)		 4740 Avatar for XiaomingX
170. malaybaku
(Baku Dreameater)		 4682 Avatar for malaybaku
171. bobbens
(Edgar Simo-Serra)		 4672 Avatar for bobbens
172. NishiOwO
(Nishi)		 4670 Avatar for NishiOwO
173. amake
(Aaron Madlon-Kay)		 4667 Avatar for amake
174. lan496
(Kohei Shinohara)		 4663 Avatar for lan496
175. bmf-san
(Kenta Takeuchi)		 4635 Avatar for bmf-san
176. ursm
(Keita Urashima)		 4571 Avatar for ursm
177. hamster1963
(仓鼠)		 4562 Avatar for hamster1963
178. nateberkopec
(Nate Berkopec)		 4559 Avatar for nateberkopec
179. fox0430
(Shuu)		 4541 Avatar for fox0430
180. kaelaela
(Yuichi Maekawa)		 4522 Avatar for kaelaela
181. AdingApkgg
(Asuna)		 4511 Avatar for AdingApkgg
182. ryotarai
(Ryota Arai)		 4486 Avatar for ryotarai
183. exoego
(TATSUNO “Taz” Yasuhiro)		 4465 Avatar for exoego
184. rikusato0
(Riku Sato)		 4464 Avatar for rikusato0
185. hymkor
(HAYAMA Kaoru)		 4441 Avatar for hymkor
186. MizukiSonoko
(MIZUKI / Igarashi)		 4396 Avatar for MizukiSonoko
187. superbrothers
(Kazuki Suda)		 4380 Avatar for superbrothers
188. anatawa12
(anatawa12)		 4363 Avatar for anatawa12
189. Yesterday17
(Yesterday17)		 4361 Avatar for Yesterday17
190. hideakitai
(Hideaki Tai)		 4360 Avatar for hideakitai
191. snoozer05
(SHIMADA Koji)		 4343 Avatar for snoozer05
192. waylandzhang
(WAYLAND ZHANG)		 4319 Avatar for waylandzhang
193. edom18
(edo)		 4292 Avatar for edom18
194. wkh237
(Ben Hsieh)		 4288 Avatar for wkh237
195. akiomik
(Akiomi KAMAKURA)		 4287 Avatar for akiomik
196. yukukotani
(Yuku Kotani)		 4280 Avatar for yukukotani
197. kaiinui
(kaiinui)		 4274 Avatar for kaiinui
198. kosukesaigusa
(Kosuke Saigusa)		 4250 Avatar for kosukesaigusa
199. inokawa
()		 4227 Avatar for inokawa
200. kexi
(Kei Nakayama)		 4208 Avatar for kexi
201. Naturalclar
(Jesse Katsumata)		 4207 Avatar for Naturalclar
202. onevcat
(Wei Wang)		 4186 Avatar for onevcat
203. magurotuna
(Yusuke Tanaka)		 4181 Avatar for magurotuna
204. konojunya
(JJ)		 4175 Avatar for konojunya
205. sulami
(Robin Schroer)		 4175 Avatar for sulami
206. akirak
(Akira Komamura)		 4160 Avatar for akirak
207. europanite
(europanite)		 4154 Avatar for europanite
208. IloveNooodles
(Muhammad Garebaldhie Er Rahman)		 4145 Avatar for IloveNooodles
209. JohnTitor
(Yuki Okushi)		 4107 Avatar for JohnTitor
210. sotarok
(Sotaro Karasawa)		 4105 Avatar for sotarok
211. newraina
(newraina)		 4081 Avatar for newraina
212. ykzts
(Yamagishi Kazutoshi)		 4079 Avatar for ykzts
213. dolphin-wood
(Daofeng Wu)		 4074 Avatar for dolphin-wood
214. yuichkun
(Yuichi Yogo)		 4052 Avatar for yuichkun
215. hirokidaichi
(hirokidaichi)		 4041 Avatar for hirokidaichi
216. lestrrat
(lestrrat)		 4035 Avatar for lestrrat
217. tk0miya
(Takeshi KOMIYA)		 4018 Avatar for tk0miya
218. peaceiris
(Shohei Ueda)		 4016 Avatar for peaceiris
219. guo-yu
(Guo Yu)		 4010 Avatar for guo-yu
220. linyows
(Tomohisa Oda)		 3984 Avatar for linyows
221. wasabeef
(Daichi Furiya)		 3966 Avatar for wasabeef
222. wkentaro
(Kentaro Wada)		 3936 Avatar for wkentaro
223. tenzen-y
(Yuki Iwai)		 3924 Avatar for tenzen-y
224. lacolaco
(Suguru Inatomi)		 3919 Avatar for lacolaco
225. ubugeeei
(ubugeeei)		 3918 Avatar for ubugeeei
226. Sixeight
(Tomohiro Nishimura)		 3887 Avatar for Sixeight
227. hotchpotch
(Yuichi Tateno (secon))		 3882 Avatar for hotchpotch
228. fetus-hina
(AIZAWA Hina)		 3878 Avatar for fetus-hina
229. budougumi0617
(Yoichiro Shimizu)		 3850 Avatar for budougumi0617
230. GalvinGao
(GalvinGao)		 3845 Avatar for GalvinGao
231. okotaku
(takuoko)		 3828 Avatar for okotaku
232. Ladicle
(Aya Igarashi)		 3825 Avatar for Ladicle
233. PINTO0309
(Katsuya Hyodo)		 3824 Avatar for PINTO0309
234. zchee
(Koichi Shiraishi)		 3815 Avatar for zchee
235. toshimaru
(Toshimaru)		 3807 Avatar for toshimaru
236. upamune
(Yu SERIZAWA)		 3806 Avatar for upamune
237. halogenandtoast
(Matthew Mongeau)		 3805 Avatar for halogenandtoast
238. jun06t
(Junpei Tsuji)		 3804 Avatar for jun06t
239. deatiger
(deatiger)		 3803 Avatar for deatiger
240. wxt2005
(Xiaotao Wang)		 3794 Avatar for wxt2005
241. UdonDa
(Udon)		 3786 Avatar for UdonDa
242. k0i
(k0i)		 3749 Avatar for k0i
243. toastkidjp
(Toast kid)		 3736 Avatar for toastkidjp
244. mesqueeb
(Luca Ban)		 3730 Avatar for mesqueeb
245. ksoichiro
(Soichiro Kashima)		 3721 Avatar for ksoichiro
246. ynqa
()		 3708 Avatar for ynqa
247. LISA-KOREA
(Lisa )		 3706 Avatar for LISA-KOREA
248. baryon
(LI Long)		 3663 Avatar for baryon
249. sevenc-nanashi
(Nanashi.)		 3647 Avatar for sevenc-nanashi
250. parroty
(Kenta Nakase)		 3641 Avatar for parroty
251. Yagami360
(Yagami)		 3635 Avatar for Yagami360
252. shu223
(Shuichi Tsutsumi)		 3595 Avatar for shu223
253. nov
(Nov Matake)		 3589 Avatar for nov
254. eiel
(HIMURA Tomohiko)		 3577 Avatar for eiel
255. kyo-ago
(kyo_ago)		 3574 Avatar for kyo-ago
256. uki00a
(Yuki Tanaka)		 3569 Avatar for uki00a

Organizations

Rank Organization Members
1. epicgames 6
2. pfnet 5
3. mercari 4
4. potatotips 4
5. reviewdog 4
6. power-assert-js 3
7. kubernetes 3
8. hiki 3
9. jenkinsci 3
10. emacs-jp 3