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 2026-09-17 07:04:20 +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 142057 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_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)		 45230 Avatar for bannzai
2. houko
(Evan)		 44669 Avatar for houko
3. kishikawakatsumi
(Kishikawa Katsumi)		 41894 Avatar for kishikawakatsumi
4. atyenoria
(Akinori Nakajima)		 40086 Avatar for atyenoria
5. MagicalTux
(Mark Karpelès)		 39877 Avatar for MagicalTux
6. amachang
(Hitoshi Amano)		 39225 Avatar for amachang
7. refirst11
()		 35374 Avatar for refirst11
8. k-takeuchi220
(Katsushi Takeuchi)		 34750 Avatar for k-takeuchi220
9. tokuhirom
(Tokuhiro Matsuno)		 29137 Avatar for tokuhirom
10. rsasaki0109
(Ryohei Sasaki)		 28750 Avatar for rsasaki0109
11. mizchi
(Kotaro Chikuba)		 28487 Avatar for mizchi
12. kurone-kito
(Kuroné Kito (黒音キト))		 25424 Avatar for kurone-kito
13. lhl
(Leonard)		 24563 Avatar for lhl
14. j5ik2o
(Junichi Kato)		 23608 Avatar for j5ik2o
15. unhappychoice
(Yuji Ueki)		 23144 Avatar for unhappychoice
16. ubugeeei
(ubugeeei)		 21901 Avatar for ubugeeei
17. fumiya-kume
(kuu(Fumiya Kume))		 21247 Avatar for fumiya-kume
18. yuiseki
(yuiseki)		 20394 Avatar for yuiseki
19. bokuweb
(bokuweb)		 19689 Avatar for bokuweb
20. dev-yakuza
(DeKu)		 19326 Avatar for dev-yakuza
21. mizzy
(Gosuke Miyashita)		 18798 Avatar for mizzy
22. YumNumm
(Ryotaro Onoue)		 18689 Avatar for YumNumm
23. Songmu
(Masayuki Matsuki)		 18467 Avatar for Songmu
24. harupy
(Harutaka Kawamura)		 16866 Avatar for harupy
25. ThaddeusJiang
(天海 原 / AMAMI Hara)		 16364 Avatar for ThaddeusJiang
26. sobri909
(Matt Greenfield)		 16251 Avatar for sobri909
27. Coordinate-Cat
(Ocat)		 16117 Avatar for Coordinate-Cat
28. winebarrel
(Genki Sugawara)		 15682 Avatar for winebarrel
29. sksat
(sksat)		 15491 Avatar for sksat
30. spinute
(Pin)		 15029 Avatar for spinute
31. susieyy
(yohei sugigami)		 14970 Avatar for susieyy
32. sile
(Takeru Ohta)		 14641 Avatar for sile
33. syoyo
(Syoyo Fujita)		 14628 Avatar for syoyo
34. babarot
(Masaki ISHIYAMA)		 14497 Avatar for babarot
35. manman4
(manman4)		 14448 Avatar for manman4
36. Code-Hex
(Kei Kamikawa)		 13933 Avatar for Code-Hex
37. touyou
(Fujii Yosuke)		 13888 Avatar for touyou
38. siketyan
(Naoki Ikeguchi)		 13703 Avatar for siketyan
39. hsbt
(Hiroshi SHIBATA)		 13635 Avatar for hsbt
40. jfbastien
(JF Bastien)		 13369 Avatar for jfbastien
41. shogo82148
(ICHINOSE Shogo)		 13319 Avatar for shogo82148
42. 1amageek
(1amageek)		 13043 Avatar for 1amageek
43. mahirhir
(Mahiro Hirakawa)		 13041 Avatar for mahirhir
44. shinh
(Shinichiro Hamaji)		 12957 Avatar for shinh
45. breezewish
(Wish)		 12665 Avatar for breezewish
46. zonuexe
(USAMI Kenta)		 12657 Avatar for zonuexe
47. otiai10
(Hiromu OCHIAI)		 12466 Avatar for otiai10
48. saltyshiomix
(Shiono Yoshihide)		 12378 Avatar for saltyshiomix
49. lestrrat
(lestrrat)		 12347 Avatar for lestrrat
50. coliff
(Christian Oliff)		 12302 Avatar for coliff
51. yamadashy
(Kazuki Yamada)		 12131 Avatar for yamadashy
52. waylandzhang
(WAYLAND ZHANG)		 11796 Avatar for waylandzhang
53. morizotter
(Morita Naoki)		 11658 Avatar for morizotter
54. suzuki-shunsuke
(Shunsuke Suzuki)		 11474 Avatar for suzuki-shunsuke
55. daitomanabe
(Daito Manabe)		 11459 Avatar for daitomanabe
56. guitarrapc
(Ikiru Yoshizaki)		 11229 Avatar for guitarrapc
57. kawasima
(Yoshitaka Kawashima)		 11202 Avatar for kawasima
58. cutmail
(Tatsuya Arai)		 11200 Avatar for cutmail
59. privatenumber
(Hiroki Osame)		 11062 Avatar for privatenumber
60. edom18
(edo)		 11010 Avatar for edom18
61. EdamAme-x
(EdamAmex)		 10650 Avatar for EdamAme-x
62. seanchas116
(Ryohei Ikegami)		 10617 Avatar for seanchas116
63. ochyai
(Yoichi OCHIAI)		 10522 Avatar for ochyai
64. pseudoyu
(pseudoyu)		 10513 Avatar for pseudoyu
65. ryota-murakami
(Ryota Murakami)		 10255 Avatar for ryota-murakami
66. matsumotory
(Ryosuke Matsumoto / @matsumotory)		 9902 Avatar for matsumotory
67. yanorei32
(Ray Yano | あねてあ)		 9848 Avatar for yanorei32
68. john-rocky
(Daisuke Majima (MLBoy))		 9782 Avatar for john-rocky
69. banyan
(Kohei Hasegawa)		 9733 Avatar for banyan
70. hideakitai
(Hideaki Tai)		 9698 Avatar for hideakitai
71. akameco
(akameco)		 9687 Avatar for akameco
72. soskek
(Sosuke Kobayashi)		 9661 Avatar for soskek
73. sue445
(Go Sueyoshi)		 9569 Avatar for sue445
74. ngs
(Atsushi NAGASE)		 9503 Avatar for ngs
75. taiki-e
(Taiki Endo)		 9470 Avatar for taiki-e
76. wkentaro
(Kentaro Wada)		 9425 Avatar for wkentaro
77. xuwei-k
(kenji yoshida)		 9304 Avatar for xuwei-k
78. zchee
(Koichi Shiraishi)		 9257 Avatar for zchee
79. miyako
(Keisuke Miyako)		 9257 Avatar for miyako
80. nateberkopec
(Nate Berkopec)		 9186 Avatar for nateberkopec
81. wadackel
(tsuyoshi wada)		 9156 Avatar for wadackel
82. tekezo
(Takayama Fumihiko)		 9122 Avatar for tekezo
83. uribo
(Shinya Uryu)		 9013 Avatar for uribo
84. sotarok
(Sotaro Karasawa)		 9000 Avatar for sotarok
85. koriym
(Akihito Koriyama)		 8891 Avatar for koriym
86. ursm
(Keita Urashima)		 8840 Avatar for ursm
87. yshrsmz
(Yasuhiro SHIMIZU)		 8793 Avatar for yshrsmz
88. ykzts
(Yamagishi Kazutoshi)		 8782 Avatar for ykzts
89. ianlewis
(Ian Lewis)		 8712 Avatar for ianlewis
90. yujiosaka
(yujiosaka)		 8614 Avatar for yujiosaka
91. matz
(Yukihiro "Matz" Matsumoto)		 8568 Avatar for matz
92. kmizu
(Kota Mizushima)		 8511 Avatar for kmizu
93. zero-0002
(Zero Dev)		 8510 Avatar for zero-0002
94. takano32
(TAKANO Mitsuhiro)		 8457 Avatar for takano32
95. yug1224
(Yuji Yamaguchi)		 8451 Avatar for yug1224
96. XiaomingX
(Y11)		 8419 Avatar for XiaomingX
97. fukayatsu
(Atsuo Fukaya)		 8368 Avatar for fukayatsu
98. tkoyama010
(Tetsuo Koyama)		 8354 Avatar for tkoyama010
99. mika-f
(MOCHIZUKI Kanon)		 8323 Avatar for mika-f
100. Anionix
(ᅟ᠎S⁢ho͏؜Tᅠakaᅟy⁣an︎aᅠg⁡i)		 8308 Avatar for Anionix
101. xeodou
(xeodou)		 8244 Avatar for xeodou
102. lambdalisue
(Λlisue)		 8232 Avatar for lambdalisue
103. ko1
(Koichi Sasada)		 8162 Avatar for ko1
104. baba-s
(baba_s)		 8130 Avatar for baba-s
105. kenn
(Kenn Ejima)		 8119 Avatar for kenn
106. hakatashi
(Koki Takahashi)		 8044 Avatar for hakatashi
107. ryotarai
(Ryota Arai)		 7976 Avatar for ryotarai
108. mogaming217
(moga)		 7951 Avatar for mogaming217
109. leemengtw
(Meng Lee)		 7887 Avatar for leemengtw
110. mpyw
(mpyw)		 7885 Avatar for mpyw
111. champierre
(Junya Ishihara)		 7831 Avatar for champierre
112. shu223
(Shuichi Tsutsumi)		 7790 Avatar for shu223
113. takahirom
(Takahiro Menju)		 7722 Avatar for takahirom
114. takuoka
(Takuya Okamoto)		 7714 Avatar for takuoka
115. timakin
(Seiji Takahashi)		 7659 Avatar for timakin
116. Yesterday17
(Yesterday17)		 7643 Avatar for Yesterday17
117. mattn
(mattn)		 7632 Avatar for mattn
118. kexi
(Kei Nakayama)		 7631 Avatar for kexi
119. akiomik
(Akiomi KAMAKURA)		 7569 Avatar for akiomik
120. RobertTLange
(Robert Tjarko Lange)		 7548 Avatar for RobertTLange
121. k1LoW
(Ken’ichiro Oyama)		 7461 Avatar for k1LoW
122. Saqoosha
(Saqoosha)		 7459 Avatar for Saqoosha
123. eiel
(HIMURA Tomohiko)		 7438 Avatar for eiel
124. iebb
(ieb)		 7407 Avatar for iebb
125. sapphi-red
(翠)		 7336 Avatar for sapphi-red
126. take-cheeze
(Takeshi Watanabe)		 7244 Avatar for take-cheeze
127. seratch
(Kazuhiro Sera)		 7101 Avatar for seratch
128. vvakame
(Masahiro Wakame)		 7076 Avatar for vvakame
129. TimOliver
(Tim Oliver)		 7049 Avatar for TimOliver
130. hhatto
(Hideo Hattori)		 6855 Avatar for hhatto
131. miya0001
(Takayuki Miyauchi)		 6836 Avatar for miya0001
132. dennybritz
(Denny Britz)		 6808 Avatar for dennybritz
133. 2bbb
(2bit)		 6804 Avatar for 2bbb
134. dvcrn
(David)		 6788 Avatar for dvcrn
135. deatiger
(deatiger)		 6718 Avatar for deatiger
136. juno
(Junya Ogura)		 6696 Avatar for juno
137. trust-delta
(trust-delta)		 6690 Avatar for trust-delta
138. mattatz
(Masatatsu Nakamura)		 6683 Avatar for mattatz
139. hajimehoshi
(Hajime Hoshi)		 6662 Avatar for hajimehoshi
140. tk0miya
(Takeshi KOMIYA)		 6662 Avatar for tk0miya
141. kyubuns
(kyubuns)		 6625 Avatar for kyubuns
142. halogenandtoast
(Matthew Mongeau)		 6615 Avatar for halogenandtoast
143. sonots
(Naotoshi Seo)		 6507 Avatar for sonots
144. magurotuna
(Yusuke Tanaka)		 6460 Avatar for magurotuna
145. TakuSemba
(TakuSemba)		 6405 Avatar for TakuSemba
146. Lxcardoza993
(Lx 🎀)		 6384 Avatar for Lxcardoza993
147. making
(Toshiaki Maki)		 6364 Avatar for making
148. rosylilly
(Sho Kusano)		 6352 Avatar for rosylilly
149. gfx
(FUJI Goro)		 6332 Avatar for gfx
150. JohnTitor
(Yuki Okushi)		 6238 Avatar for JohnTitor
151. masuidrive
(Yuichiro MASUI)		 6224 Avatar for masuidrive
152. Him188
(Him188)		 6169 Avatar for Him188
153. taea
(taea)		 6120 Avatar for taea
154. bmf-san
(Kenta Takeuchi)		 6109 Avatar for bmf-san
155. hotchpotch
(Yuichi Tateno (secon))		 6095 Avatar for hotchpotch
156. kakutani
(Kakutani Shintaro)		 6060 Avatar for kakutani
157. yuki-kimoto
(Yuki Kimoto)		 6032 Avatar for yuki-kimoto
158. mumoshu
(Yusuke Kuoka)		 5971 Avatar for mumoshu
159. rob0pup
(Robin)		 5963 Avatar for rob0pup
160. Jannchie
(Jianqi Pan)		 5933 Avatar for Jannchie
161. lacolaco
(Suguru Inatomi)		 5868 Avatar for lacolaco
162. ogaclejapan
(ogaclejapan)		 5767 Avatar for ogaclejapan
163. onevcat
(Wei Wang)		 5696 Avatar for onevcat
164. GalvinGao
(GalvinGao)		 5686 Avatar for GalvinGao
165. wajahat-ali-mir-dev
(Wajahat Ali Mir)		 5684 Avatar for wajahat-ali-mir-dev
166. azu
(azu)		 5651 Avatar for azu
167. hakuturu583
(Masaya Kataoka)		 5638 Avatar for hakuturu583
168. PINTO0309
(Katsuya Hyodo)		 5627 Avatar for PINTO0309
169. uzulla
(uzulla / Junichi Ishida)		 5614 Avatar for uzulla
170. catnose99
(catnose)		 5614 Avatar for catnose99
171. guo-yu
(Guo Yu)		 5582 Avatar for guo-yu
172. sxzz
(Kevin Deng)		 5563 Avatar for sxzz
173. cocoa-xu
(Cocoa)		 5536 Avatar for cocoa-xu
174. tenntenn
(Takuya Ueda)		 5516 Avatar for tenntenn
175. takahashim
(Masayoshi Takahashi)		 5515 Avatar for takahashim
176. Hiroshiba
(Hiroshiba)		 5474 Avatar for Hiroshiba
177. Naturalclar
(Jesse Katsumata)		 5469 Avatar for Naturalclar
178. hi-ogawa
(Hiroshi Ogawa)		 5435 Avatar for hi-ogawa
179. d-date
(Daiki Matsudate)		 5398 Avatar for d-date
180. dalance
(Naoya Hatta)		 5380 Avatar for dalance
181. bee-san
(Autumn (Bee))		 5318 Avatar for bee-san
182. inductor
(Kohei Ota (inductor))		 5310 Avatar for inductor
183. r-plus
(r-plus)		 5255 Avatar for r-plus
184. kazupon
(kazuya kawaguchi)		 5197 Avatar for kazupon
185. mirakui
(Issei Naruta)		 5195 Avatar for mirakui
186. nwiizo
(nwiizo)		 5192 Avatar for nwiizo
187. motemen
(Hironao OTSUBO)		 5176 Avatar for motemen
188. cxxxr
(cxxxr)		 5144 Avatar for cxxxr
189. dahatake
(Daiyu Hatakeyama)		 5111 Avatar for dahatake
190. toshimaru
(Toshimaru)		 5080 Avatar for toshimaru
191. rikusato0
(Riku Sato)		 5044 Avatar for rikusato0
192. anchan828
(Keigo Ando)		 5042 Avatar for anchan828
193. sorah
(Sorah Fukumori)		 5026 Avatar for sorah
194. qwexvf
(Maruchan)		 4978 Avatar for qwexvf
195. AkihiroSuda
(Akihiro Suda)		 4975 Avatar for AkihiroSuda
196. peaceiris
(Shohei Ueda)		 4911 Avatar for peaceiris
197. hirokidaichi
(hirokidaichi)		 4879 Avatar for hirokidaichi
198. minaminao
(minaminao)		 4846 Avatar for minaminao
199. europanite
(europanite)		 4791 Avatar for europanite
200. mesqueeb
(Luca Ban)		 4773 Avatar for mesqueeb
201. enliven17
(cankat)		 4761 Avatar for enliven17
202. drakeet
(Drakeet)		 4736 Avatar for drakeet
203. koxudaxi
(Koudai Aono)		 4721 Avatar for koxudaxi
204. cpojer
(Christoph Nakazawa)		 4685 Avatar for cpojer
205. SebastienGllmt
(Sebastien Guillemot)		 4664 Avatar for SebastienGllmt
206. kjj6198
(Kalan)		 4647 Avatar for kjj6198
207. yasulab
(Yohei Yasukawa)		 4630 Avatar for yasulab
208. ucan-lab
(ucan-lab)		 4572 Avatar for ucan-lab
209. AAkira
(Akira Aratani)		 4550 Avatar for AAkira
210. himkt
(himkt)		 4547 Avatar for himkt
211. inokawa
()		 4526 Avatar for inokawa
212. sgr-ksmt
(Suguru Kishimoto)		 4503 Avatar for sgr-ksmt
213. peppy
(Dean Herbert)		 4477 Avatar for peppy
214. IloveNooodles
(Muhammad Garebaldhie Er Rahman)		 4457 Avatar for IloveNooodles
215. Watson1978
(Shizuo Fujita)		 4454 Avatar for Watson1978
216. anatawa12
(anatawa12)		 4450 Avatar for anatawa12
217. lightsound
(しまぶー)		 4425 Avatar for lightsound
218. eltociear
(Ikko Eltociear Ashimine)		 4414 Avatar for eltociear
219. k0i
(k0i)		 4407 Avatar for k0i
220. fujiwara
(FUJIWARA Shunichiro)		 4397 Avatar for fujiwara
221. nov
(Nov Matake)		 4348 Avatar for nov
222. komagata
(Masaki Komagata)		 4344 Avatar for komagata
223. aoi1026
(AOI)		 4343 Avatar for aoi1026
224. kazunori279
(Kaz Sato)		 4341 Avatar for kazunori279
225. ksoichiro
(Soichiro Kashima)		 4319 Avatar for ksoichiro
226. mitmul
(Shunta Saito)		 4308 Avatar for mitmul
227. ymotongpoo
(Yoshi Yamaguchi)		 4285 Avatar for ymotongpoo
228. kamipo
(Ryuta Kamizono)		 4272 Avatar for kamipo
229. sevenc-nanashi
(Nanashi.)		 4258 Avatar for sevenc-nanashi
230. pocke
(Masataka Pocke Kuwabara)		 4186 Avatar for pocke
231. kou
(Sutou Kouhei)		 4151 Avatar for kou
232. tmori
(Takashi Mori)		 4124 Avatar for tmori
233. moznion
(moznion)		 4107 Avatar for moznion
234. baku89
(Baku Hashimoto)		 4090 Avatar for baku89
235. aitikgupta
(Aitik Gupta)		 4077 Avatar for aitikgupta
236. mashharuki
(Haruki Kondo)		 4068 Avatar for mashharuki
237. amatsuda
(Akira Matsuda)		 4054 Avatar for amatsuda
238. kadamwhite
(K Adam White)		 4020 Avatar for kadamwhite
239. potato4d
(Takuma HANATANI)		 3999 Avatar for potato4d
240. heestand-xyz
(Anton Heestand)		 3947 Avatar for heestand-xyz
241. yoavlt
(Takuma Yoshida)		 3925 Avatar for yoavlt
242. pmq20
(Minqi Pan)		 3896 Avatar for pmq20
243. manju-summoner
(manju summoner)		 3833 Avatar for manju-summoner
244. tokorom
(tokorom)		 3832 Avatar for tokorom
245. craftzdog
(Takuya Matsuyama)		 3814 Avatar for craftzdog
246. superbrothers
(Kazuki Suda)		 3804 Avatar for superbrothers
247. ninoseki
(Manabu Niseki)		 3803 Avatar for ninoseki
248. shimbaco
(Shimba, Koji)		 3795 Avatar for shimbaco
249. udzura
(Kondo Uchio)		 3779 Avatar for udzura
250. toastkidjp
(Toast kid)		 3711 Avatar for toastkidjp
251. Kazuhito00
(KazuhitoTakahashi)		 3696 Avatar for Kazuhito00
252. taiki45
(Taiki Ono)		 3695 Avatar for taiki45
253. yoichiro
(Yoichiro Tanaka)		 3655 Avatar for yoichiro
254. satoruhiga
(Satoru Higa)		 3651 Avatar for satoruhiga
255. syumai
(syumai)		 3616 Avatar for syumai
256. smorimoto
(Sora Morimoto)		 3589 Avatar for smorimoto

Organizations

Rank Organization Members
1. ruby 7
2. potatotips 6
3. pfnet 6
4. asakusarb 6
5. isucon 6
6. epicgames 5
7. ruby-no-kai 5
8. chainer 5
9. scalajp 4
10. railsgirls-jp 4