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 2026-08-16 04:33:42 +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 140651 total users in the region and you need at least 203 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. kishikawakatsumi
(Kishikawa Katsumi)		 42439 Avatar for kishikawakatsumi
2. terasakisatoshi
(Satoshi Terasaki)		 41686 Avatar for terasakisatoshi
3. bannzai
(bannzai)		 38504 Avatar for bannzai
4. MagicalTux
(Mark Karpelès)		 35394 Avatar for MagicalTux
5. atyenoria
(Akinori Nakajima)		 34490 Avatar for atyenoria
6. houko
(Evan)		 31528 Avatar for houko
7. rsasaki0109
(Ryohei Sasaki)		 26932 Avatar for rsasaki0109
8. amachang
(Hitoshi Amano)		 24598 Avatar for amachang
9. mizchi
(Kotaro Chikuba)		 24486 Avatar for mizchi
10. tokuhirom
(Tokuhiro Matsuno)		 23910 Avatar for tokuhirom
11. j5ik2o
(Junichi Kato)		 22740 Avatar for j5ik2o
12. unhappychoice
(Yuji Ueki)		 22736 Avatar for unhappychoice
13. k-takeuchi220
(Katsushi Takeuchi)		 20889 Avatar for k-takeuchi220
14. yuiseki
(yuiseki)		 20367 Avatar for yuiseki
15. lhl
(Leonard)		 19407 Avatar for lhl
16. fumiya-kume
(kuu(Fumiya Kume))		 19054 Avatar for fumiya-kume
17. Songmu
(Masayuki Matsuki)		 18740 Avatar for Songmu
18. dev-yakuza
(DeKu)		 18711 Avatar for dev-yakuza
19. kurone-kito
(Kuroné Kito (黒音キト))		 18683 Avatar for kurone-kito
20. mizzy
(Gosuke Miyashita)		 18490 Avatar for mizzy
21. harupy
(Harutaka Kawamura)		 16261 Avatar for harupy
22. shinh
(Shinichiro Hamaji)		 16048 Avatar for shinh
23. ThaddeusJiang
(天海 原 / AMAMI Hara)		 15680 Avatar for ThaddeusJiang
24. winebarrel
(Genki Sugawara)		 15615 Avatar for winebarrel
25. bokuweb
(bokuweb)		 15561 Avatar for bokuweb
26. Coordinate-Cat
(Ocat)		 15540 Avatar for Coordinate-Cat
27. ubugeeei
(ubugeeei)		 15297 Avatar for ubugeeei
28. manman4
(manman4)		 15188 Avatar for manman4
29. YumNumm
(Ryotaro Onoue)		 14946 Avatar for YumNumm
30. babarot
(Masaki ISHIYAMA)		 14240 Avatar for babarot
31. sile
(Takeru Ohta)		 13503 Avatar for sile
32. siketyan
(Naoki Ikeguchi)		 13439 Avatar for siketyan
33. spinute
(Pin)		 13128 Avatar for spinute
34. sksat
(sksat)		 12993 Avatar for sksat
35. saltyshiomix
(Shiono Yoshihide)		 12518 Avatar for saltyshiomix
36. touyou
(Fujii Yosuke)		 11981 Avatar for touyou
37. shogo82148
(ICHINOSE Shogo)		 11904 Avatar for shogo82148
38. jfbastien
(JF Bastien)		 11683 Avatar for jfbastien
39. coliff
(Christian Oliff)		 11460 Avatar for coliff
40. yamadashy
(Kazuki Yamada)		 11390 Avatar for yamadashy
41. guitarrapc
(Ikiru Yoshizaki)		 11185 Avatar for guitarrapc
42. suzuki-shunsuke
(Shunsuke Suzuki)		 11171 Avatar for suzuki-shunsuke
43. otiai10
(Hiromu OCHIAI)		 10998 Avatar for otiai10
44. baba-s
(baba_s)		 10805 Avatar for baba-s
45. sobri909
(Matt Greenfield)		 10725 Avatar for sobri909
46. hsbt
(Hiroshi SHIBATA)		 10680 Avatar for hsbt
47. 1amageek
(1amageek)		 10608 Avatar for 1amageek
48. privatenumber
(Hiroki Osame)		 10574 Avatar for privatenumber
49. daitomanabe
(Daito Manabe)		 9955 Avatar for daitomanabe
50. xuwei-k
(kenji yoshida)		 9834 Avatar for xuwei-k
51. lestrrat
(lestrrat)		 9832 Avatar for lestrrat
52. syoyo
(Syoyo Fujita)		 9754 Avatar for syoyo
53. seanchas116
(Ryohei Ikegami)		 9643 Avatar for seanchas116
54. sue445
(Go Sueyoshi)		 9579 Avatar for sue445
55. yanorei32
(Ray Yano | あねてあ)		 9579 Avatar for yanorei32
56. taiki-e
(Taiki Endo)		 9502 Avatar for taiki-e
57. Code-Hex
(Kei Kamikawa)		 9494 Avatar for Code-Hex
58. breezewish
(Wish)		 9479 Avatar for breezewish
59. zonuexe
(USAMI Kenta)		 9326 Avatar for zonuexe
60. ryota-murakami
(Ryota Murakami)		 9203 Avatar for ryota-murakami
61. edom18
(edo)		 9110 Avatar for edom18
62. EdamAme-x
(EdamAmex)		 8906 Avatar for EdamAme-x
63. koriym
(Akihito Koriyama)		 8890 Avatar for koriym
64. tekezo
(Takayama Fumihiko)		 8884 Avatar for tekezo
65. morizotter
(Morita Naoki)		 8866 Avatar for morizotter
66. wadackel
(tsuyoshi wada)		 8527 Avatar for wadackel
67. fukayatsu
(Atsuo Fukaya)		 8475 Avatar for fukayatsu
68. akameco
(akameco)		 8408 Avatar for akameco
69. ursm
(Keita Urashima)		 8315 Avatar for ursm
70. XiaomingX
(Y11)		 8301 Avatar for XiaomingX
71. nateberkopec
(Nate Berkopec)		 8282 Avatar for nateberkopec
72. ianlewis
(Ian Lewis)		 8260 Avatar for ianlewis
73. ngs
(Atsushi NAGASE)		 8220 Avatar for ngs
74. yshrsmz
(Yasuhiro SHIMIZU)		 8167 Avatar for yshrsmz
75. matsumotory
(Ryosuke Matsumoto / @matsumotory)		 8138 Avatar for matsumotory
76. lambdalisue
(Λlisue)		 8024 Avatar for lambdalisue
77. sotarok
(Sotaro Karasawa)		 8013 Avatar for sotarok
78. yug1224
(Yuji Yamaguchi)		 7957 Avatar for yug1224
79. takahirom
(Takahiro Menju)		 7874 Avatar for takahirom
80. hideakitai
(Hideaki Tai)		 7853 Avatar for hideakitai
81. mika-f
(MOCHIZUKI Kanon)		 7773 Avatar for mika-f
82. kenn
(Kenn Ejima)		 7712 Avatar for kenn
83. miyako
(Keisuke Miyako)		 7707 Avatar for miyako
84. tkoyama010
(Tetsuo Koyama)		 7703 Avatar for tkoyama010
85. Anionix
(ᅟ᠎S⁢ho͏؜Tᅠakaᅟy⁣an︎aᅠg⁡i)		 7592 Avatar for Anionix
86. waylandzhang
(WAYLAND ZHANG)		 7507 Avatar for waylandzhang
87. champierre
(Junya Ishihara)		 7440 Avatar for champierre
88. ochyai
(Yoichi OCHIAI)		 7432 Avatar for ochyai
89. conao3
(Naoya Yamashita)		 7339 Avatar for conao3
90. matz
(Yukihiro "Matz" Matsumoto)		 7326 Avatar for matz
91. k1LoW
(Ken’ichiro Oyama)		 7171 Avatar for k1LoW
92. wkentaro
(Kentaro Wada)		 7153 Avatar for wkentaro
93. sapphi-red
(翠)		 7141 Avatar for sapphi-red
94. vvakame
(Masahiro Wakame)		 7110 Avatar for vvakame
95. xeodou
(xeodou)		 7083 Avatar for xeodou
96. ko1
(Koichi Sasada)		 7036 Avatar for ko1
97. timakin
(Seiji Takahashi)		 7019 Avatar for timakin
98. hakatashi
(Koki Takahashi)		 6906 Avatar for hakatashi
99. takuoka
(Takuya Okamoto)		 6865 Avatar for takuoka
100. john-rocky
(Daisuke Majima)		 6820 Avatar for john-rocky
101. RobertTLange
(Robert Tjarko Lange)		 6782 Avatar for RobertTLange
102. mattatz
(Masatatsu Nakamura)		 6759 Avatar for mattatz
103. mpyw
(mpyw)		 6731 Avatar for mpyw
104. TakuSemba
(TakuSemba)		 6629 Avatar for TakuSemba
105. uribo
(Shinya Uryu)		 6627 Avatar for uribo
106. iebb
(ieb)		 6622 Avatar for iebb
107. Saqoosha
(Saqoosha)		 6549 Avatar for Saqoosha
108. rob0pup
(Robin)		 6531 Avatar for rob0pup
109. kyubuns
(kyubuns)		 6488 Avatar for kyubuns
110. hhatto
(Hideo Hattori)		 6470 Avatar for hhatto
111. Yesterday17
(Yesterday17)		 6435 Avatar for Yesterday17
112. 2bbb
(2bit)		 6382 Avatar for 2bbb
113. kmizu
(Kota Mizushima)		 6370 Avatar for kmizu
114. shu223
(Shuichi Tsutsumi)		 6369 Avatar for shu223
115. rosylilly
(Sho Kusano)		 6365 Avatar for rosylilly
116. kexi
(Kei Nakayama)		 6347 Avatar for kexi
117. halogenandtoast
(Matthew Mongeau)		 6346 Avatar for halogenandtoast
118. eiel
(HIMURA Tomohiko)		 6269 Avatar for eiel
119. hajimehoshi
(Hajime Hoshi)		 6228 Avatar for hajimehoshi
120. mattn
(mattn)		 6213 Avatar for mattn
121. tk0miya
(Takeshi KOMIYA)		 6174 Avatar for tk0miya
122. magurotuna
(Yusuke Tanaka)		 6157 Avatar for magurotuna
123. azu
(azu)		 6150 Avatar for azu
124. yuki-kimoto
(Yuki Kimoto)		 6147 Avatar for yuki-kimoto
125. juno
(Junya Ogura)		 6146 Avatar for juno
126. TimOliver
(Tim Oliver)		 6052 Avatar for TimOliver
127. deatiger
(deatiger)		 6002 Avatar for deatiger
128. sxzz
(Kevin Deng)		 5930 Avatar for sxzz
129. seratch
(Kazuhiro Sera)		 5917 Avatar for seratch
130. bmf-san
(Kenta Takeuchi)		 5899 Avatar for bmf-san
131. JohnTitor
(Yuki Okushi)		 5888 Avatar for JohnTitor
132. Him188
(Him188)		 5862 Avatar for Him188
133. soskek
(Sosuke Kobayashi)		 5850 Avatar for soskek
134. dvcrn
(David)		 5821 Avatar for dvcrn
135. trust-delta
(trust-delta)		 5697 Avatar for trust-delta
136. hotchpotch
(Yuichi Tateno (secon))		 5685 Avatar for hotchpotch
137. PINTO0309
(Katsuya Hyodo)		 5667 Avatar for PINTO0309
138. catnose99
(catnose)		 5636 Avatar for catnose99
139. guo-yu
(Guo Yu)		 5581 Avatar for guo-yu
140. ogaclejapan
(ogaclejapan)		 5563 Avatar for ogaclejapan
141. mumoshu
(Yusuke Kuoka)		 5535 Avatar for mumoshu
142. onevcat
(Wei Wang)		 5456 Avatar for onevcat
143. yujiosaka
(yujiosaka)		 5449 Avatar for yujiosaka
144. dennybritz
(Denny Britz)		 5442 Avatar for dennybritz
145. miya0001
(Takayuki Miyauchi)		 5430 Avatar for miya0001
146. r-plus
(r-plus)		 5400 Avatar for r-plus
147. cxxxr
(cxxxr)		 5361 Avatar for cxxxr
148. kawasima
(Yoshitaka Kawashima)		 5335 Avatar for kawasima
149. hi-ogawa
(Hiroshi Ogawa)		 5329 Avatar for hi-ogawa
150. taea
(taea)		 5300 Avatar for taea
151. hakuturu583
(Masaya Kataoka)		 5298 Avatar for hakuturu583
152. GalvinGao
(GalvinGao)		 5285 Avatar for GalvinGao
153. zchee
(Koichi Shiraishi)		 5264 Avatar for zchee
154. anchan828
(Keigo Ando)		 5215 Avatar for anchan828
155. yasulab
(Yohei Yasukawa)		 5181 Avatar for yasulab
156. Hiroshiba
(Hiroshiba)		 5148 Avatar for Hiroshiba
157. gfx
(FUJI Goro)		 5132 Avatar for gfx
158. Jannchie
(Jianqi Pan)		 5085 Avatar for Jannchie
159. masuidrive
(Yuichiro MASUI)		 5047 Avatar for masuidrive
160. hirokidaichi
(hirokidaichi)		 5019 Avatar for hirokidaichi
161. kakutani
(Kakutani Shintaro)		 4999 Avatar for kakutani
162. nwiizo
(nwiizo)		 4989 Avatar for nwiizo
163. sonots
(Naotoshi Seo)		 4969 Avatar for sonots
164. ykzts
(Yamagishi Kazutoshi)		 4969 Avatar for ykzts
165. lacolaco
(Suguru Inatomi)		 4938 Avatar for lacolaco
166. europanite
(europanite)		 4924 Avatar for europanite
167. peaceiris
(Shohei Ueda)		 4907 Avatar for peaceiris
168. peppy
(Dean Herbert)		 4890 Avatar for peppy
169. dalance
(Naoya Hatta)		 4878 Avatar for dalance
170. kazupon
(kazuya kawaguchi)		 4874 Avatar for kazupon
171. uzulla
(uzulla / Junichi Ishida)		 4848 Avatar for uzulla
172. toshimaru
(Toshimaru)		 4837 Avatar for toshimaru
173. sorah
(Sorah Fukumori)		 4823 Avatar for sorah
174. AkihiroSuda
(Akihiro Suda)		 4792 Avatar for AkihiroSuda
175. mirakui
(Issei Naruta)		 4781 Avatar for mirakui
176. mesqueeb
(Luca Ban)		 4716 Avatar for mesqueeb
177. takahashim
(Masayoshi Takahashi)		 4611 Avatar for takahashim
178. dahatake
(Daiyu Hatakeyama)		 4563 Avatar for dahatake
179. inokawa
()		 4533 Avatar for inokawa
180. fujiwara
(FUJIWARA Shunichiro)		 4493 Avatar for fujiwara
181. takano32
(TAKANO Mitsuhiro)		 4420 Avatar for takano32
182. k0i
(k0i)		 4366 Avatar for k0i
183. IloveNooodles
(Muhammad Garebaldhie Er Rahman)		 4362 Avatar for IloveNooodles
184. anatawa12
(anatawa12)		 4361 Avatar for anatawa12
185. baku89
(Baku Hashimoto)		 4355 Avatar for baku89
186. inductor
(Kohei Ota (inductor))		 4328 Avatar for inductor
187. koxudaxi
(Koudai Aono)		 4318 Avatar for koxudaxi
188. sevenc-nanashi
(Nanashi.)		 4300 Avatar for sevenc-nanashi
189. enliven17
(cankat)		 4243 Avatar for enliven17
190. komagata
(Masaki Komagata)		 4238 Avatar for komagata
191. kou
(Sutou Kouhei)		 4236 Avatar for kou
192. making
(Toshiaki Maki)		 4222 Avatar for making
193. kjj6198
(Kalan)		 4218 Avatar for kjj6198
194. nov
(Nov Matake)		 4170 Avatar for nov
195. ksoichiro
(Soichiro Kashima)		 4155 Avatar for ksoichiro
196. himkt
(himkt)		 4123 Avatar for himkt
197. ucan-lab
(ucan-lab)		 4115 Avatar for ucan-lab
198. AAkira
(Akira Aratani)		 4108 Avatar for AAkira
199. kamipo
(Ryuta Kamizono)		 4106 Avatar for kamipo
200. amatsuda
(Akira Matsuda)		 4062 Avatar for amatsuda
201. bee-san
(Autumn (Bee))		 4039 Avatar for bee-san
202. eltociear
(Ikko Eltociear Ashimine)		 3959 Avatar for eltociear
203. sgr-ksmt
(Suguru Kishimoto)		 3935 Avatar for sgr-ksmt
204. takoneko8
(Taiki Kaneko)		 3918 Avatar for takoneko8
205. syumai
(syumai)		 3880 Avatar for syumai
206. tokorom
(tokorom)		 3868 Avatar for tokorom
207. motemen
(Hironao OTSUBO)		 3868 Avatar for motemen
208. d-date
(Daiki Matsudate)		 3860 Avatar for d-date
209. pmq20
(Minqi Pan)		 3844 Avatar for pmq20
210. mashharuki
(Haruki Kondo)		 3809 Avatar for mashharuki
211. manju-summoner
(manju summoner)		 3758 Avatar for manju-summoner
212. superbrothers
(Kazuki Suda)		 3745 Avatar for superbrothers
213. tmori
(Takashi Mori)		 3744 Avatar for tmori
214. toastkidjp
(Toast kid)		 3740 Avatar for toastkidjp
215. cpojer
(Christoph Nakazawa)		 3739 Avatar for cpojer
216. Naturalclar
(Jesse Katsumata)		 3733 Avatar for Naturalclar
217. potato4d
(Takuma HANATANI)		 3728 Avatar for potato4d
218. Watson1978
(Shizuo Fujita)		 3722 Avatar for Watson1978
219. lightsound
(しまぶー)		 3719 Avatar for lightsound
220. minaminao
(minaminao)		 3660 Avatar for minaminao
221. drakeet
(Drakeet)		 3656 Avatar for drakeet
222. smorimoto
(Sora Morimoto)		 3640 Avatar for smorimoto
223. MITSUHIRO-KURIKI
(K.Mitsuhiro)		 3633 Avatar for MITSUHIRO-KURIKI
224. nghialv
(nghialv)		 3593 Avatar for nghialv
225. kadamwhite
(K Adam White)		 3591 Avatar for kadamwhite
226. davetang
(Dave Tang)		 3572 Avatar for davetang
227. rikusato0
(Riku Sato)		 3567 Avatar for rikusato0
228. heestand-xyz
(Anton Heestand)		 3544 Avatar for heestand-xyz
229. satoruhiga
(Satoru Higa)		 3493 Avatar for satoruhiga
230. udzura
(Kondo Uchio)		 3485 Avatar for udzura
231. haqishen
(haqishen)		 3484 Avatar for haqishen
232. h6ah4i
(Haruki Hasegawa)		 3481 Avatar for h6ah4i
233. mitmul
(Shunta Saito)		 3476 Avatar for mitmul
234. wasabeef
(Daichi Furiya)		 3474 Avatar for wasabeef
235. ninoseki
(Manabu Niseki)		 3466 Avatar for ninoseki
236. m3m0r7
(memory)		 3444 Avatar for m3m0r7
237. shimbaco
(Shimba, Koji)		 3442 Avatar for shimbaco
238. craftzdog
(Takuya Matsuyama)		 3410 Avatar for craftzdog
239. marty-suzuki
(Taiki Suzuki)		 3401 Avatar for marty-suzuki
240. nobu
(Nobuyoshi Nakada)		 3397 Avatar for nobu
241. shin1x1
(Masashi Shinbara)		 3378 Avatar for shin1x1
242. hayatoito
(Hayato Ito)		 3371 Avatar for hayatoito
243. moznion
(moznion)		 3364 Avatar for moznion
244. p-x9
()		 3361 Avatar for p-x9
245. Layzie
(HIRAKI Satoru)		 3354 Avatar for Layzie
246. drasticactions
(Tim Miller)		 3350 Avatar for drasticactions
247. bobbens
(Edgar Simo-Serra)		 3345 Avatar for bobbens
248. c-bata
(c-bata)		 3344 Avatar for c-bata
249. aitikgupta
(Aitik Gupta)		 3308 Avatar for aitikgupta
250. Kazuhito00
(KazuhitoTakahashi)		 3293 Avatar for Kazuhito00
251. suin
()		 3292 Avatar for suin
252. aoi1026
(AOI)		 3290 Avatar for aoi1026
253. koji
(koji)		 3287 Avatar for koji
254. aviatesk
(Shuhei Kadowaki)		 3270 Avatar for aviatesk
255. shirakaba
(Jamie Birch)		 3248 Avatar for shirakaba
256. yhatt
(Yuki Hattori)		 3246 Avatar for yhatt

Organizations

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