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 2026-06-17 14:31:16 +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 136100 total users in the region and you need at least 126 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)		 99093 Avatar for bannzai
2. Takazudo
(Takeshi Takatsudo)		 45165 Avatar for Takazudo
3. kishikawakatsumi
(Kishikawa Katsumi)		 41796 Avatar for kishikawakatsumi
4. rsasaki0109
(Ryohei Sasaki)		 24074 Avatar for rsasaki0109
5. MagicalTux
(Mark Karpelès)		 22827 Avatar for MagicalTux
6. cybergarage
(Satoshi Konno)		 22131 Avatar for cybergarage
7. mizchi
(Kotaro Chikuba)		 21207 Avatar for mizchi
8. terasakisatoshi
(Satoshi Terasaki)		 20971 Avatar for terasakisatoshi
9. baba-s
(baba_s)		 20872 Avatar for baba-s
10. houko
(Evan)		 20716 Avatar for houko
11. yuiseki
(yuiseki)		 20631 Avatar for yuiseki
12. unhappychoice
(Yuji Ueki)		 20336 Avatar for unhappychoice
13. Songmu
(Masayuki Matsuki)		 18191 Avatar for Songmu
14. normful
(Norman Sue)		 18127 Avatar for normful
15. shinh
(Shinichiro Hamaji)		 18083 Avatar for shinh
16. shikajiro
(shikajiro)		 17898 Avatar for shikajiro
17. dev-yakuza
(DeKu)		 17288 Avatar for dev-yakuza
18. j5ik2o
(Junichi Kato)		 16822 Avatar for j5ik2o
19. ncaq
()		 16768 Avatar for ncaq
20. fumiya-kume
(kuu(Fumiya Kume))		 16409 Avatar for fumiya-kume
21. tokuhirom
(Tokuhiro Matsuno)		 16217 Avatar for tokuhirom
22. mizzy
(Gosuke Miyashita)		 15721 Avatar for mizzy
23. winebarrel
(Genki Sugawara)		 15463 Avatar for winebarrel
24. Coordinate-Cat
(Ocat)		 15356 Avatar for Coordinate-Cat
25. manman4
(manman4)		 15295 Avatar for manman4
26. lhl
(Leonard)		 15084 Avatar for lhl
27. morizyun
(morizyun)		 14431 Avatar for morizyun
28. yuzushioh
(yuzushioh)		 14368 Avatar for yuzushioh
29. babarot
(Masaki ISHIYAMA)		 14239 Avatar for babarot
30. ukonpower
(ukonpower)		 13817 Avatar for ukonpower
31. amachang
(Hitoshi Amano)		 13591 Avatar for amachang
32. siketyan
(Naoki Ikeguchi)		 13167 Avatar for siketyan
33. harupy
(Harutaka Kawamura)		 12679 Avatar for harupy
34. bokuweb
(bokuweb)		 12556 Avatar for bokuweb
35. MH4GF
(Hirotaka Miyagi)		 12249 Avatar for MH4GF
36. saltyshiomix
(Shiono Yoshihide)		 11981 Avatar for saltyshiomix
37. suzuki-shunsuke
(Shunsuke Suzuki)		 11637 Avatar for suzuki-shunsuke
38. k-takeuchi220
(Katsushi Takeuchi)		 11459 Avatar for k-takeuchi220
39. luvtechno
(Yoshinori Kawasaki)		 11409 Avatar for luvtechno
40. sile
(Takeru Ohta)		 11270 Avatar for sile
41. dtaniwaki
(Daisuke Taniwaki)		 11049 Avatar for dtaniwaki
42. coliff
(Christian Oliff)		 11000 Avatar for coliff
43. YumNumm
(Ryotaro Onoue)		 10768 Avatar for YumNumm
44. sksat
(sksat)		 10567 Avatar for sksat
45. riseshia
(Shia)		 10515 Avatar for riseshia
46. myuon
(myuon)		 10314 Avatar for myuon
47. spinute
(Pin)		 10256 Avatar for spinute
48. ubugeeei
(ubugeeei)		 10169 Avatar for ubugeeei
49. ssig33
(ssig33)		 9863 Avatar for ssig33
50. guitarrapc
(Ikiru Yoshizaki)		 9680 Avatar for guitarrapc
51. yaneurao
(yaneurao)		 9524 Avatar for yaneurao
52. nkjzm
(Nakaji Kohki)		 9494 Avatar for nkjzm
53. ryota-murakami
(Ryota Murakami)		 9110 Avatar for ryota-murakami
54. sotetsuk
(Sotetsu KOYAMADA)		 9108 Avatar for sotetsuk
55. xuwei-k
(kenji yoshida)		 9061 Avatar for xuwei-k
56. sue445
(Go Sueyoshi)		 9029 Avatar for sue445
57. touyou
(Fujii Yosuke)		 9000 Avatar for touyou
58. builtinnya
(Naoto Yokoyama)		 8869 Avatar for builtinnya
59. kjirou
(Kojiro Ishii)		 8850 Avatar for kjirou
60. susieyy
(yohei sugigami)		 8814 Avatar for susieyy
61. shinaoka
(Hiroshi Shinaoka)		 8767 Avatar for shinaoka
62. seanchas116
(Ryohei Ikegami)		 8762 Avatar for seanchas116
63. shogo82148
(ICHINOSE Shogo)		 8720 Avatar for shogo82148
64. technote-space
(Takahashi)		 8716 Avatar for technote-space
65. sapphi-red
(翠)		 8633 Avatar for sapphi-red
66. kurone-kito
(Kuroné Kito (黒音キト))		 8574 Avatar for kurone-kito
67. yshrsmz
(Yasuhiro SHIMIZU)		 8530 Avatar for yshrsmz
68. privatenumber
(Hiroki Osame)		 8505 Avatar for privatenumber
69. okunokentaro
(OKUNOKENTARO)		 8455 Avatar for okunokentaro
70. ashryanbeats
(Ash Ryan Arnwine)		 8411 Avatar for ashryanbeats
71. bootjp
(Yoshiaki Ueda (bootjp))		 8357 Avatar for bootjp
72. hsbt
(Hiroshi SHIBATA)		 8356 Avatar for hsbt
73. h3poteto
(AkiraFukushima)		 8352 Avatar for h3poteto
74. nateberkopec
(Nate Berkopec)		 8300 Avatar for nateberkopec
75. nulltask
(Seiya KONNO)		 8259 Avatar for nulltask
76. lambdalisue
(Λlisue)		 8127 Avatar for lambdalisue
77. lan496
(Kohei Shinohara)		 8102 Avatar for lan496
78. yanorei32
(Ray Yano | あねてあ)		 8058 Avatar for yanorei32
79. exoego
(TATSUNO “Taz” Yasuhiro)		 7908 Avatar for exoego
80. dragon3
(Ryuzo Yamamoto)		 7860 Avatar for dragon3
81. koriym
(Akihito Koriyama)		 7773 Avatar for koriym
82. taiki-e
(Taiki Endo)		 7750 Avatar for taiki-e
83. wadackel
(tsuyoshi wada)		 7708 Avatar for wadackel
84. fukayatsu
(Atsuo Fukaya)		 7642 Avatar for fukayatsu
85. yamadashy
(Kazuki Yamada)		 7640 Avatar for yamadashy
86. m-mizutani
(Masayoshi Mizutani)		 7535 Avatar for m-mizutani
87. kenn
(Kenn Ejima)		 7477 Avatar for kenn
88. takahirom
(Takahiro Menju)		 7425 Avatar for takahirom
89. toshi0383
(Toshihiro Suzuki)		 7355 Avatar for toshi0383
90. tekezo
(Takayama Fumihiko)		 7345 Avatar for tekezo
91. koki-develop
(Koki Sato)		 7339 Avatar for koki-develop
92. otiai10
(Hiromu OCHIAI)		 7335 Avatar for otiai10
93. vvakame
(Masahiro Wakame)		 7328 Avatar for vvakame
94. conao3
(Naoya Yamashita)		 7282 Avatar for conao3
95. yuya-takeyama
(Yuya Takeyama)		 7263 Avatar for yuya-takeyama
96. retoruto-carry
(れとるときゃりー)		 7255 Avatar for retoruto-carry
97. horita-yuya
(horita-yuya)		 7196 Avatar for horita-yuya
98. ohbarye
(Masato Ohba)		 7195 Avatar for ohbarye
99. omochi
(omochimetaru)		 7189 Avatar for omochi
100. miyako
(Keisuke Miyako)		 7178 Avatar for miyako
101. ianlewis
(Ian Lewis)		 7063 Avatar for ianlewis
102. k1LoW
(Ken’ichiro Oyama)		 7053 Avatar for k1LoW
103. yug1224
(Yuji Yamaguchi)		 7051 Avatar for yug1224
104. a-r-g-v
(Yuki Mukasa ( a_r_g_v ))		 7044 Avatar for a-r-g-v
105. nuitsjp
(Atsushi Nakamura)		 7027 Avatar for nuitsjp
106. airtoxin
(Ryoji Miyazato)		 6974 Avatar for airtoxin
107. rjyo
(Jo)		 6918 Avatar for rjyo
108. laysakura
(Sho Nakatani)		 6899 Avatar for laysakura
109. rob0pup
(R²)		 6889 Avatar for rob0pup
110. azu
(azu)		 6853 Avatar for azu
111. coji
(Coji Mizoguchi)		 6840 Avatar for coji
112. tkoyama010
(Tetsuo Koyama)		 6835 Avatar for tkoyama010
113. sobri909
(Matt Greenfield)		 6825 Avatar for sobri909
114. k-nasa
(nasa)		 6743 Avatar for k-nasa
115. kotarella1110
(Kotaro Sugawara)		 6683 Avatar for kotarella1110
116. eggplants
(haruna)		 6680 Avatar for eggplants
117. ursm
(Keita Urashima)		 6673 Avatar for ursm
118. mika-f
(MOCHIZUKI Kanon)		 6668 Avatar for mika-f
119. champierre
(Junya Ishihara)		 6652 Avatar for champierre
120. hogelog
(hogelog)		 6608 Avatar for hogelog
121. edom18
(edo)		 6563 Avatar for edom18
122. mattatz
(Masatatsu Nakamura)		 6472 Avatar for mattatz
123. LumaKernel
(Luma)		 6471 Avatar for LumaKernel
124. Kanahiro
(Kanahiro Iguchi)		 6436 Avatar for Kanahiro
125. 1amageek
(1amageek)		 6397 Avatar for 1amageek
126. atusy
()		 6372 Avatar for atusy
127. cutmail
(Tatsuya Arai)		 6366 Avatar for cutmail
128. magurotuna
(Yusuke Tanaka)		 6339 Avatar for magurotuna
129. hhatto
(Hideo Hattori)		 6306 Avatar for hhatto
130. EdamAme-x
(EdamAmex)		 6285 Avatar for EdamAme-x
131. Saqoosha
(Saqoosha)		 6272 Avatar for Saqoosha
132. dvcrn
(David)		 6226 Avatar for dvcrn
133. naichilab
(naichi)		 6178 Avatar for naichilab
134. seriaati
(seria)		 6174 Avatar for seriaati
135. sotarok
(Sotaro Karasawa)		 6149 Avatar for sotarok
136. Code-Hex
(Kei Kamikawa)		 6134 Avatar for Code-Hex
137. UdonDa
(Udon)		 6098 Avatar for UdonDa
138. sys1yagi
(Toshihiro Yagi)		 6081 Avatar for sys1yagi
139. kojix2
()		 6078 Avatar for kojix2
140. banyan
(Kohei Hasegawa)		 6059 Avatar for banyan
141. 3846masa
(Masahiro Miyashiro (3846masa))		 6055 Avatar for 3846masa
142. hakatashi
(Koki Takahashi)		 6027 Avatar for hakatashi
143. rosylilly
(Sho Kusano)		 6016 Avatar for rosylilly
144. sxzz
(Kevin Deng)		 5929 Avatar for sxzz
145. ngs
(Atsushi NAGASE)		 5859 Avatar for ngs
146. waylandzhang
(WAYLAND ZHANG)		 5847 Avatar for waylandzhang
147. hakuturu583
(Masaya Kataoka)		 5811 Avatar for hakuturu583
148. kosukesaigusa
(Kosuke Saigusa)		 5800 Avatar for kosukesaigusa
149. akameco
(akameco)		 5795 Avatar for akameco
150. XiaomingX
(Y11)		 5745 Avatar for XiaomingX
151. catnose99
(catnose)		 5741 Avatar for catnose99
152. yasulab
(Yohei Yasukawa)		 5740 Avatar for yasulab
153. yuki-kimoto
(Yuki Kimoto)		 5735 Avatar for yuki-kimoto
154. wajahat-ali-mir-dev
(Wajahat Ali Mir)		 5675 Avatar for wajahat-ali-mir-dev
155. anchan828
(Keigo Ando)		 5673 Avatar for anchan828
156. mogaming217
(moga)		 5672 Avatar for mogaming217
157. lestrrat
(lestrrat)		 5672 Avatar for lestrrat
158. ogaclejapan
(ogaclejapan)		 5654 Avatar for ogaclejapan
159. hajimehoshi
(Hajime Hoshi)		 5616 Avatar for hajimehoshi
160. morizotter
(Morita Naoki)		 5615 Avatar for morizotter
161. mahata
(Yasunori MAHATA)		 5595 Avatar for mahata
162. genki
(Genki Takiuchi)		 5588 Avatar for genki
163. 2222-42
(Stephen S.H. a.k.a. 大王)		 5587 Avatar for 2222-42
164. katahiromz
(Katayama Hirofumi MZ)		 5519 Avatar for katahiromz
165. yohamta0
(Yota Hamada)		 5518 Avatar for yohamta0
166. sota1235
(Sota Sugiura)		 5517 Avatar for sota1235
167. syoyo
(Syoyo Fujita)		 5501 Avatar for syoyo
168. Slowhand0309
(Slowhand)		 5473 Avatar for Slowhand0309
169. 2bbb
(2bit)		 5462 Avatar for 2bbb
170. guo-yu
(Guo Yu)		 5441 Avatar for guo-yu
171. cxxxr
(cxxxr)		 5380 Avatar for cxxxr
172. juno
(Junya Ogura)		 5378 Avatar for juno
173. jfbastien
(JF Bastien)		 5375 Avatar for jfbastien
174. boxp
(Keitaro Takeuchi)		 5372 Avatar for boxp
175. hideakitai
(Hideaki Tai)		 5371 Avatar for hideakitai
176. okotaku
(takuoko)		 5347 Avatar for okotaku
177. ryotarai
(Ryota Arai)		 5322 Avatar for ryotarai
178. breezewish
(Wish)		 5306 Avatar for breezewish
179. john-rocky
(Daisuke Majima)		 5292 Avatar for john-rocky
180. seratch
(Kazuhiro Sera)		 5289 Avatar for seratch
181. malaybaku
(Baku Dreameater)		 5286 Avatar for malaybaku
182. kexi
(Kei Nakayama)		 5284 Avatar for kexi
183. snoozer05
(SHIMADA Koji)		 5263 Avatar for snoozer05
184. Hiroshiba
(Hiroshiba)		 5244 Avatar for Hiroshiba
185. bmf-san
(Kenta Takeuchi)		 5232 Avatar for bmf-san
186. r-plus
(r-plus)		 5221 Avatar for r-plus
187. kaelaela
(Yuichi Maekawa)		 5206 Avatar for kaelaela
188. TakuSemba
(TakuSemba)		 5188 Avatar for TakuSemba
189. mackysoft
(Makihiro)		 5178 Avatar for mackysoft
190. tk0miya
(Takeshi KOMIYA)		 5174 Avatar for tk0miya
191. kyubuns
(kyubuns)		 5165 Avatar for kyubuns
192. wkentaro
(Kentaro Wada)		 5135 Avatar for wkentaro
193. hirokidaichi
(hirokidaichi)		 5127 Avatar for hirokidaichi
194. hi-ogawa
(Hiroshi Ogawa)		 5125 Avatar for hi-ogawa
195. timakin
(Seiji Takahashi)		 5125 Avatar for timakin
196. JohnTitor
(Yuki Okushi)		 5096 Avatar for JohnTitor
197. RobertTLange
(Robert Tjarko Lange)		 5051 Avatar for RobertTLange
198. tnantoka
(Tatsuya Tobioka)		 5020 Avatar for tnantoka
199. newraina
(newraina)		 4985 Avatar for newraina
200. shu223
(Shuichi Tsutsumi)		 4957 Avatar for shu223
201. deatiger
(deatiger)		 4949 Avatar for deatiger
202. masutaka
(Takashi Masuda)		 4940 Avatar for masutaka
203. Him188
(Him188)		 4940 Avatar for Him188
204. ko1
(Koichi Sasada)		 4915 Avatar for ko1
205. amake
(Aaron Madlon-Kay)		 4913 Avatar for amake
206. ochyai
(Yoichi OCHIAI)		 4887 Avatar for ochyai
207. TimOliver
(Tim Oliver)		 4863 Avatar for TimOliver
208. europanite
(europanite)		 4845 Avatar for europanite
209. hotchpotch
(Yuichi Tateno (secon))		 4833 Avatar for hotchpotch
210. uribo
(Shinya Uryu)		 4793 Avatar for uribo
211. onevcat
(Wei Wang)		 4751 Avatar for onevcat
212. dennybritz
(Denny Britz)		 4751 Avatar for dennybritz
213. yuichkun
(Yuichi Yogo)		 4734 Avatar for yuichkun
214. eiel
(HIMURA Tomohiko)		 4717 Avatar for eiel
215. wkh237
(Ben Hsieh)		 4685 Avatar for wkh237
216. yukukotani
(Yuku Kotani)		 4660 Avatar for yukukotani
217. iebb
(ieb)		 4655 Avatar for iebb
218. AdingApkgg
(Asuna)		 4629 Avatar for AdingApkgg
219. AkihiroSuda
(Akihiro Suda)		 4594 Avatar for AkihiroSuda
220. hymkor
(HAYAMA Kaoru)		 4584 Avatar for hymkor
221. matz
(Yukihiro "Matz" Matsumoto)		 4551 Avatar for matz
222. masuidrive
(Yuichiro MASUI)		 4517 Avatar for masuidrive
223. fetus-hina
(AIZAWA Hina)		 4487 Avatar for fetus-hina
224. baryon
(LI Long)		 4469 Avatar for baryon
225. rikusato0
(Riku Sato)		 4468 Avatar for rikusato0
226. anatawa12
(anatawa12)		 4461 Avatar for anatawa12
227. ykzts
(Yamagishi Kazutoshi)		 4456 Avatar for ykzts
228. hikettei
(hikettei)		 4444 Avatar for hikettei
229. kou
(Sutou Kouhei)		 4439 Avatar for kou
230. sorah
(Sorah Fukumori)		 4439 Avatar for sorah
231. mesqueeb
(Luca Ban)		 4432 Avatar for mesqueeb
232. nwiizo
(nwiizo)		 4408 Avatar for nwiizo
233. lacolaco
(Suguru Inatomi)		 4407 Avatar for lacolaco
234. halogenandtoast
(Matthew Mongeau)		 4400 Avatar for halogenandtoast
235. peppy
(Dean Herbert)		 4392 Avatar for peppy
236. mattn
(mattn)		 4392 Avatar for mattn
237. GalvinGao
(GalvinGao)		 4363 Avatar for GalvinGao
238. inokawa
()		 4351 Avatar for inokawa
239. daitomanabe
(Daito Manabe)		 4324 Avatar for daitomanabe
240. Yesterday17
(Yesterday17)		 4298 Avatar for Yesterday17
241. peaceiris
(Shohei Ueda)		 4296 Avatar for peaceiris
242. trust-delta
(trust-delta)		 4292 Avatar for trust-delta
243. jun06t
(Junpei Tsuji)		 4287 Avatar for jun06t
244. IloveNooodles
(Muhammad Garebaldhie Er Rahman)		 4284 Avatar for IloveNooodles
245. dahatake
(Daiyu Hatakeyama)		 4239 Avatar for dahatake
246. ksoichiro
(Soichiro Kashima)		 4236 Avatar for ksoichiro
247. sivchari
(Takuma Shibuya)		 4228 Avatar for sivchari
248. gfx
(FUJI Goro)		 4207 Avatar for gfx
249. linyows
(Tomohisa Oda)		 4201 Avatar for linyows
250. mori-atsushi
(Mori Atsushi)		 4200 Avatar for mori-atsushi
251. Jannchie
(Jianqi Pan)		 4194 Avatar for Jannchie
252. sevenc-nanashi
(Nanashi.)		 4187 Avatar for sevenc-nanashi
253. akiomik
(Akiomi KAMAKURA)		 4183 Avatar for akiomik
254. kyo-ago
(kyo_ago)		 4183 Avatar for kyo-ago
255. upamune
(Yu SERIZAWA)		 4177 Avatar for upamune
256. hamster1963
(仓鼠)		 4169 Avatar for hamster1963

Organizations

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