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 2026-10-14 23:06:48 +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 143309 total users in the region and you need at least 198 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. houko
(小莫)		 92291 Avatar for houko
2. bannzai
(bannzai)		 48084 Avatar for bannzai
3. MagicalTux
(Mark Karpelès)		 46989 Avatar for MagicalTux
4. amachang
(Hitoshi Amano)		 44121 Avatar for amachang
5. atyenoria
(Akinori Nakajima)		 42544 Avatar for atyenoria
6. refirst11
(Sou Watanabe)		 39325 Avatar for refirst11
7. k-takeuchi220
(Katsushi Takeuchi)		 38281 Avatar for k-takeuchi220
8. kishikawakatsumi
(Kishikawa Katsumi)		 37494 Avatar for kishikawakatsumi
9. tokuhirom
(Tokuhiro Matsuno)		 34537 Avatar for tokuhirom
10. rsasaki0109
(Ryohei Sasaki)		 33523 Avatar for rsasaki0109
11. kurone-kito
(Kuroné Kito (黒音キト))		 32791 Avatar for kurone-kito
12. mizchi
(Kotaro Chikuba)		 30632 Avatar for mizchi
13. lhl
(Leonard)		 29999 Avatar for lhl
14. ubugeeei
(ubugeeei)		 27609 Avatar for ubugeeei
15. j5ik2o
(Junichi Kato)		 25661 Avatar for j5ik2o
16. unhappychoice
(Yuji Ueki)		 25185 Avatar for unhappychoice
17. fumiya-kume
(kuu(Fumiya Kume))		 24438 Avatar for fumiya-kume
18. bokuweb
(bokuweb)		 23342 Avatar for bokuweb
19. dev-yakuza
(DeKu)		 22088 Avatar for dev-yakuza
20. sobri909
(Matt Greenfield)		 21142 Avatar for sobri909
21. susieyy
(yohei sugigami)		 20746 Avatar for susieyy
22. mahirhir
(Arne Rei)		 20721 Avatar for mahirhir
23. mizzy
(Gosuke Miyashita)		 19629 Avatar for mizzy
24. YumNumm
(Ryotaro Onoue)		 19473 Avatar for YumNumm
25. Songmu
(Masayuki Matsuki)		 19138 Avatar for Songmu
26. yuiseki
(yuiseki)		 19026 Avatar for yuiseki
27. babarot
(Masaki ISHIYAMA)		 18625 Avatar for babarot
28. sksat
(sksat)		 17950 Avatar for sksat
29. Coordinate-Cat
(Ocat)		 17484 Avatar for Coordinate-Cat
30. touyou
(Fujii Yosuke)		 17403 Avatar for touyou
31. zonuexe
(USAMI Kenta)		 17377 Avatar for zonuexe
32. Code-Hex
(Kei Kamikawa)		 17120 Avatar for Code-Hex
33. harupy
(Harutaka Kawamura)		 16865 Avatar for harupy
34. ThaddeusJiang
(天海 原 / AMAMI Hara)		 16852 Avatar for ThaddeusJiang
35. winebarrel
(Genki Sugawara)		 16621 Avatar for winebarrel
36. spinute
(Pin)		 16422 Avatar for spinute
37. lestrrat
(lestrrat)		 16409 Avatar for lestrrat
38. 1amageek
(1amageek)		 16286 Avatar for 1amageek
39. shogo82148
(ICHINOSE Shogo)		 15905 Avatar for shogo82148
40. hsbt
(Hiroshi SHIBATA)		 15858 Avatar for hsbt
41. yujiosaka
(yujiosaka)		 15796 Avatar for yujiosaka
42. daitomanabe
(Daito Manabe)		 15616 Avatar for daitomanabe
43. breezewish
(Wish)		 15117 Avatar for breezewish
44. ochyai
(Yoichi OCHIAI)		 15026 Avatar for ochyai
45. syoyo
(Syoyo Fujita)		 14921 Avatar for syoyo
46. jfbastien
(JF Bastien)		 14610 Avatar for jfbastien
47. kawasima
(Yoshitaka Kawashima)		 14383 Avatar for kawasima
48. siketyan
(Naoki Ikeguchi)		 14219 Avatar for siketyan
49. zchee
(Koichi Shiraishi)		 14081 Avatar for zchee
50. manman4
(manman4)		 14067 Avatar for manman4
51. suzuki-shunsuke
(Shunsuke Suzuki)		 13943 Avatar for suzuki-shunsuke
52. pseudoyu
(pseudoyu)		 13853 Avatar for pseudoyu
53. otiai10
(Hiromu OCHIAI)		 13789 Avatar for otiai10
54. sile
(Takeru Ohta)		 13766 Avatar for sile
55. saltyshiomix
(Shiono Yoshihide)		 13545 Avatar for saltyshiomix
56. morizotter
(Morita Naoki)		 13326 Avatar for morizotter
57. matz
(Yukihiro "Matz" Matsumoto)		 13223 Avatar for matz
58. cutmail
(Tatsuya Arai)		 12829 Avatar for cutmail
59. john-rocky
(Daisuke Majima (MLBoy))		 12824 Avatar for john-rocky
60. coliff
(Christian Oliff)		 12790 Avatar for coliff
61. wkentaro
(Kentaro Wada)		 12668 Avatar for wkentaro
62. takano32
(TAKANO Mitsuhiro)		 12628 Avatar for takano32
63. waylandzhang
(WAYLAND ZHANG)		 12534 Avatar for waylandzhang
64. edom18
(edo)		 12434 Avatar for edom18
65. ykzts
(Yamagishi Kazutoshi)		 12357 Avatar for ykzts
66. shinh
(Shinichiro Hamaji)		 12157 Avatar for shinh
67. privatenumber
(Hiroki Osame)		 11902 Avatar for privatenumber
68. matsumotory
(Ryosuke Matsumoto / @matsumotory)		 11792 Avatar for matsumotory
69. seanchas116
(Ryohei Ikegami)		 11751 Avatar for seanchas116
70. take-cheeze
(Takeshi Watanabe)		 11740 Avatar for take-cheeze
71. yamadashy
(Kazuki Yamada)		 11481 Avatar for yamadashy
72. hideakitai
(Hideaki Tai)		 11442 Avatar for hideakitai
73. uribo
(Shinya Uryu)		 11436 Avatar for uribo
74. akameco
(akameco)		 11381 Avatar for akameco
75. guitarrapc
(Ikiru Yoshizaki)		 11348 Avatar for guitarrapc
76. leemengtw
(Meng Lee)		 11164 Avatar for leemengtw
77. ngs
(Atsushi NAGASE)		 11151 Avatar for ngs
78. EdamAme-x
(EdamAmex)		 11109 Avatar for EdamAme-x
79. ryota-murakami
(Ryota Murakami)		 10618 Avatar for ryota-murakami
80. banyan
(Kohei Hasegawa)		 10404 Avatar for banyan
81. Yesterday17
(Yesterday17)		 10231 Avatar for Yesterday17
82. kmizu
(Kota Mizushima)		 10169 Avatar for kmizu
83. sotarok
(Sotaro Karasawa)		 10108 Avatar for sotarok
84. wadackel
(tsuyoshi wada)		 10061 Avatar for wadackel
85. shu223
(Shuichi Tsutsumi)		 10022 Avatar for shu223
86. nateberkopec
(Nate Berkopec)		 10002 Avatar for nateberkopec
87. making
(Toshiaki Maki)		 9924 Avatar for making
88. mpyw
(mpyw)		 9830 Avatar for mpyw
89. miyako
(Keisuke Miyako)		 9767 Avatar for miyako
90. tekezo
(Takayama Fumihiko)		 9681 Avatar for tekezo
91. xeodou
(xeodou)		 9596 Avatar for xeodou
92. koriym
(Akihito Koriyama)		 9571 Avatar for koriym
93. sue445
(Go Sueyoshi)		 9403 Avatar for sue445
94. mika-f
(MOCHIZUKI Kanon)		 9332 Avatar for mika-f
95. yshrsmz
(Yasuhiro SHIMIZU)		 9214 Avatar for yshrsmz
96. kazunori279
(Kaz Sato)		 9203 Avatar for kazunori279
97. taiki-e
(Taiki Endo)		 9185 Avatar for taiki-e
98. yug1224
(Yuji Yamaguchi)		 9151 Avatar for yug1224
99. SebastienGllmt
(Sebastien Guillemot)		 9142 Avatar for SebastienGllmt
100. timakin
(Seiji Takahashi)		 9121 Avatar for timakin
101. ursm
(Keita Urashima)		 9088 Avatar for ursm
102. xuwei-k
(kenji yoshida)		 9067 Avatar for xuwei-k
103. mogaming217
(moga)		 9032 Avatar for mogaming217
104. LumaKernel
(Luma)		 8996 Avatar for LumaKernel
105. k1LoW
(Ken’ichiro Oyama)		 8935 Avatar for k1LoW
106. kenn
(Kenn Ejima)		 8883 Avatar for kenn
107. champierre
(Junya Ishihara)		 8859 Avatar for champierre
108. zero-0002
(Zero Dev)		 8856 Avatar for zero-0002
109. hakatashi
(Koki Takahashi)		 8849 Avatar for hakatashi
110. XiaomingX
(Y11)		 8813 Avatar for XiaomingX
111. RobertTLange
(Robert Tjarko Lange)		 8772 Avatar for RobertTLange
112. syuilo
(syuilo)		 8756 Avatar for syuilo
113. lambdalisue
(Λlisue)		 8720 Avatar for lambdalisue
114. tkoyama010
(Tetsuo Koyama)		 8685 Avatar for tkoyama010
115. ko1
(Koichi Sasada)		 8655 Avatar for ko1
116. takuoka
(Takuya Okamoto)		 8640 Avatar for takuoka
117. ianlewis
(Ian Lewis)		 8560 Avatar for ianlewis
118. onevcat
(Wei Wang)		 8519 Avatar for onevcat
119. Saqoosha
(Saqoosha)		 8383 Avatar for Saqoosha
120. rosylilly
(Sho Kusano)		 8300 Avatar for rosylilly
121. fukayatsu
(Atsuo Fukaya)		 8232 Avatar for fukayatsu
122. ryotarai
(Ryota Arai)		 8213 Avatar for ryotarai
123. mattn
(mattn)		 8206 Avatar for mattn
124. iebb
(ieb)		 8131 Avatar for iebb
125. kexi
(Kei Nakayama)		 8058 Avatar for kexi
126. juno
(Junya Ogura)		 7984 Avatar for juno
127. akiomik
(Akiomi KAMAKURA)		 7961 Avatar for akiomik
128. eiel
(HIMURA Tomohiko)		 7943 Avatar for eiel
129. otnc
(otoneko.)		 7910 Avatar for otnc
130. gfx
(FUJI Goro)		 7898 Avatar for gfx
131. takahirom
(Takahiro Menju)		 7763 Avatar for takahirom
132. takahashim
(Masayoshi Takahashi)		 7742 Avatar for takahashim
133. bee-san
(Autumn (Bee))		 7730 Avatar for bee-san
134. deatiger
(deatiger)		 7691 Avatar for deatiger
135. Lxcardoza993
(Lx 🎀)		 7672 Avatar for Lxcardoza993
136. d-date
(Daiki Matsudate)		 7648 Avatar for d-date
137. TimOliver
(Tim Oliver)		 7628 Avatar for TimOliver
138. koxudaxi
(Koudai Aono)		 7442 Avatar for koxudaxi
139. vvakame
(Masahiro Wakame)		 7416 Avatar for vvakame
140. 2bbb
(2bit)		 7386 Avatar for 2bbb
141. trust-delta
(trust-delta)		 7336 Avatar for trust-delta
142. sonots
(Naotoshi Seo)		 7310 Avatar for sonots
143. masuidrive
(Yuichiro MASUI)		 7250 Avatar for masuidrive
144. taea
(taea)		 7232 Avatar for taea
145. enliven17
(cankat)		 7216 Avatar for enliven17
146. kyubuns
(kyubuns)		 7185 Avatar for kyubuns
147. kiaking
(Kia King)		 7175 Avatar for kiaking
148. hhatto
(Hideo Hattori)		 7166 Avatar for hhatto
149. miya0001
(Takayuki Miyauchi)		 7155 Avatar for miya0001
150. dennybritz
(Denny Britz)		 7126 Avatar for dennybritz
151. seratch
(Kazuhiro Sera)		 7107 Avatar for seratch
152. tk0miya
(Takeshi KOMIYA)		 7044 Avatar for tk0miya
153. GalvinGao
(GalvinGao)		 7031 Avatar for GalvinGao
154. hajimehoshi
(Hajime Hoshi)		 7026 Avatar for hajimehoshi
155. Jannchie
(Jianqi Pan)		 7008 Avatar for Jannchie
156. halsk
(Hal Seki)		 6995 Avatar for halsk
157. takumi-sato0209
(Takumi Sato)		 6949 Avatar for takumi-sato0209
158. lacolaco
(Suguru Inatomi)		 6949 Avatar for lacolaco
159. hakuturu583
(Masaya Kataoka)		 6933 Avatar for hakuturu583
160. halogenandtoast
(Matthew Mongeau)		 6882 Avatar for halogenandtoast
161. magurotuna
(YT)		 6698 Avatar for magurotuna
162. dvcrn
(David)		 6596 Avatar for dvcrn
163. TakuSemba
(TakuSemba)		 6591 Avatar for TakuSemba
164. hotchpotch
(Yuichi Tateno (secon))		 6558 Avatar for hotchpotch
165. mitmul
(Shunta Saito)		 6525 Avatar for mitmul
166. mattatz
(Masatatsu Nakamura)		 6500 Avatar for mattatz
167. tenntenn
(Takuya Ueda)		 6480 Avatar for tenntenn
168. ogaclejapan
(ogaclejapan)		 6409 Avatar for ogaclejapan
169. inductor
(Kohei Ota (inductor))		 6366 Avatar for inductor
170. sapphi-red
(翠)		 6352 Avatar for sapphi-red
171. uzulla
(uzulla / Junichi Ishida)		 6332 Avatar for uzulla
172. JohnTitor
(Yuki Okushi)		 6307 Avatar for JohnTitor
173. catnose99
(catnose)		 6295 Avatar for catnose99
174. mirakui
(Issei Naruta)		 6251 Avatar for mirakui
175. bmf-san
(Kenta Takeuchi)		 6196 Avatar for bmf-san
176. baba-s
(baba_s)		 6195 Avatar for baba-s
177. cocoa-xu
(Cocoa)		 6171 Avatar for cocoa-xu
178. sorah
(Sorah Fukumori)		 6134 Avatar for sorah
179. Naturalclar
(Jesse Katsumata)		 6115 Avatar for Naturalclar
180. dahatake
(Daiyu Hatakeyama)		 6088 Avatar for dahatake
181. yoavlt
(Takuma Yoshida)		 6066 Avatar for yoavlt
182. kakutani
(Kakutani Shintaro)		 6060 Avatar for kakutani
183. kazupon
(kazuya kawaguchi)		 6052 Avatar for kazupon
184. drakeet
(Drakeet)		 5986 Avatar for drakeet
185. rikusato0
(Riku Sato)		 5955 Avatar for rikusato0
186. aitikgupta
(Aitik Gupta)		 5930 Avatar for aitikgupta
187. vaaaaanquish
(vaaaaanquish)		 5916 Avatar for vaaaaanquish
188. hi-ogawa
(Hiroshi Ogawa)		 5915 Avatar for hi-ogawa
189. mumoshu
(Yusuke Kuoka)		 5912 Avatar for mumoshu
190. kjj6198
(Kalan)		 5844 Avatar for kjj6198
191. guo-yu
(Guo Yu)		 5819 Avatar for guo-yu
192. yuki-kimoto
(Yuki Kimoto)		 5756 Avatar for yuki-kimoto
193. ucan-lab
(ucan-lab)		 5706 Avatar for ucan-lab
194. wajahat-ali-mir-dev
(Wajahat Ali Mir)		 5690 Avatar for wajahat-ali-mir-dev
195. tenzen-y
(Yuki Iwai)		 5650 Avatar for tenzen-y
196. PINTO0309
(Katsuya Hyodo)		 5632 Avatar for PINTO0309
197. Hiroshiba
(Hiroshiba)		 5627 Avatar for Hiroshiba
198. lightsound
(しまぶー)		 5546 Avatar for lightsound
199. motemen
(Hironao OTSUBO)		 5541 Avatar for motemen
200. azu
(azu)		 5520 Avatar for azu
201. sxzz
(Kevin Deng)		 5519 Avatar for sxzz
202. rob0pup
(Robin)		 5515 Avatar for rob0pup
203. dalance
(Naoya Hatta)		 5512 Avatar for dalance
204. mesqueeb
(Luca Ban)		 5510 Avatar for mesqueeb
205. cpojer
(Christoph Nakazawa)		 5491 Avatar for cpojer
206. nwiizo
(nwiizo)		 5436 Avatar for nwiizo
207. AdingApkgg
(Asuna)		 5381 Avatar for AdingApkgg
208. hirokidaichi
(hirokidaichi)		 5332 Avatar for hirokidaichi
209. KyoheiG3
(Kyohei Ito)		 5285 Avatar for KyoheiG3
210. AAkira
(Akira Aratani)		 5280 Avatar for AAkira
211. qwexvf
(Maruchan)		 5218 Avatar for qwexvf
212. yasulab
(Yohei Yasukawa)		 5191 Avatar for yasulab
213. recdnd
(surgeon)		 5181 Avatar for recdnd
214. toshimaru
(Toshimaru)		 5173 Avatar for toshimaru
215. cxxxr
(cxxxr)		 5134 Avatar for cxxxr
216. r-plus
(r-plus)		 5107 Avatar for r-plus
217. ymotongpoo
(Yoshi Yamaguchi)		 5098 Avatar for ymotongpoo
218. tmori
(Takashi Mori)		 5083 Avatar for tmori
219. pocke
(Masataka Pocke Kuwabara)		 5011 Avatar for pocke
220. soskek
(Sosuke Kobayashi)		 4999 Avatar for soskek
221. Watson1978
(Shizuo Fujita)		 4995 Avatar for Watson1978
222. AkihiroSuda
(Akihiro Suda)		 4974 Avatar for AkihiroSuda
223. minaminao
(minaminao)		 4947 Avatar for minaminao
224. peaceiris
(Shohei Ueda)		 4919 Avatar for peaceiris
225. rui314
(Rui Ueyama)		 4891 Avatar for rui314
226. anchan828
(Keigo Ando)		 4852 Avatar for anchan828
227. himkt
(himkt)		 4766 Avatar for himkt
228. adarshaj
(Adarsh J)		 4696 Avatar for adarshaj
229. aoi1026
(AOI)		 4690 Avatar for aoi1026
230. anatawa12
(anatawa12)		 4658 Avatar for anatawa12
231. yoichiro
(Yoichiro Tanaka)		 4630 Avatar for yoichiro
232. kou
(Sutou Kouhei)		 4617 Avatar for kou
233. ksoichiro
(Soichiro Kashima)		 4581 Avatar for ksoichiro
234. kadamwhite
(K Adam White)		 4560 Avatar for kadamwhite
235. amatsuda
(Akira Matsuda)		 4535 Avatar for amatsuda
236. moznion
(moznion)		 4535 Avatar for moznion
237. komagata
(Masaki Komagata)		 4525 Avatar for komagata
238. nov
(Nov Matake)		 4503 Avatar for nov
239. inokawa
()		 4480 Avatar for inokawa
240. eltociear
(Ikko Eltociear Ashimine)		 4456 Avatar for eltociear
241. pmq20
(Minqi Pan)		 4440 Avatar for pmq20
242. fujiwara
(FUJIWARA Shunichiro)		 4432 Avatar for fujiwara
243. craftzdog
(Takuya Matsuyama)		 4418 Avatar for craftzdog
244. vrtmrz
(vorotamoroz)		 4416 Avatar for vrtmrz
245. IloveNooodles
(Muhammad Garebaldhie Er Rahman)		 4410 Avatar for IloveNooodles
246. potato4d
(Takuma HANATANI)		 4406 Avatar for potato4d
247. kamipo
(Ryuta Kamizono)		 4370 Avatar for kamipo
248. sevenc-nanashi
(Nanashi.)		 4344 Avatar for sevenc-nanashi
249. europanite
(europanite)		 4330 Avatar for europanite
250. k0i
(k0i)		 4323 Avatar for k0i
251. hiroppy
(Yuta Hiroto)		 4317 Avatar for hiroppy
252. satoruhiga
(Satoru Higa)		 4265 Avatar for satoruhiga
253. heestand-xyz
(Anton Heestand)		 4207 Avatar for heestand-xyz
254. sgr-ksmt
(Suguru Kishimoto)		 4199 Avatar for sgr-ksmt
255. gkjohnson
(Garrett Johnson)		 4196 Avatar for gkjohnson
256. mashharuki
(Haruki Kondo)		 4178 Avatar for mashharuki

Organizations

Rank Organization Members
1. ruby 7
2. asakusarb 6
3. isucon 6
4. chainer 5
5. pfnet 5
6. ruby-no-kai 5
7. sinsai 4
8. java-ja 4
9. ukigumo 4
10. vuejs 4