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 2026-08-06 08:19:12 +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 139948 total users in the region and you need at least 207 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)		 83265 Avatar for bannzai
2. kishikawakatsumi
(Kishikawa Katsumi)		 42380 Avatar for kishikawakatsumi
3. terasakisatoshi
(Satoshi Terasaki)		 39163 Avatar for terasakisatoshi
4. MagicalTux
(Mark Karpelès)		 34985 Avatar for MagicalTux
5. atyenoria
(Akinori Nakajima)		 32549 Avatar for atyenoria
6. houko
(Evan)		 29501 Avatar for houko
7. rsasaki0109
(Ryohei Sasaki)		 26601 Avatar for rsasaki0109
8. mizchi
(Kotaro Chikuba)		 23631 Avatar for mizchi
9. amachang
(Hitoshi Amano)		 22784 Avatar for amachang
10. unhappychoice
(Yuji Ueki)		 22302 Avatar for unhappychoice
11. j5ik2o
(Junichi Kato)		 22160 Avatar for j5ik2o
12. tokuhirom
(Tokuhiro Matsuno)		 21416 Avatar for tokuhirom
13. yuiseki
(yuiseki)		 20379 Avatar for yuiseki
14. lhl
(Leonard)		 18872 Avatar for lhl
15. Songmu
(Masayuki Matsuki)		 18634 Avatar for Songmu
16. k-takeuchi220
(Katsushi Takeuchi)		 18571 Avatar for k-takeuchi220
17. fumiya-kume
(kuu(Fumiya Kume))		 18311 Avatar for fumiya-kume
18. mizzy
(Gosuke Miyashita)		 18017 Avatar for mizzy
19. dev-yakuza
(DeKu)		 17669 Avatar for dev-yakuza
20. shinh
(Shinichiro Hamaji)		 17621 Avatar for shinh
21. kurone-kito
(Kuroné Kito (黒音キト))		 16544 Avatar for kurone-kito
22. ThaddeusJiang
(天海 原 / AMAMI Hara)		 15532 Avatar for ThaddeusJiang
23. winebarrel
(Genki Sugawara)		 15493 Avatar for winebarrel
24. Coordinate-Cat
(Ocat)		 15411 Avatar for Coordinate-Cat
25. manman4
(manman4)		 15295 Avatar for manman4
26. bokuweb
(bokuweb)		 14787 Avatar for bokuweb
27. harupy
(Harutaka Kawamura)		 14723 Avatar for harupy
28. ubugeeei
(ubugeeei)		 14710 Avatar for ubugeeei
29. babarot
(Masaki ISHIYAMA)		 14373 Avatar for babarot
30. YumNumm
(Ryotaro Onoue)		 14029 Avatar for YumNumm
31. siketyan
(Naoki Ikeguchi)		 13446 Avatar for siketyan
32. spinute
(Pin)		 12951 Avatar for spinute
33. yamadashy
(Kazuki Yamada)		 12762 Avatar for yamadashy
34. baba-s
(baba_s)		 12540 Avatar for baba-s
35. sile
(Takeru Ohta)		 12504 Avatar for sile
36. sksat
(sksat)		 12427 Avatar for sksat
37. saltyshiomix
(Shiono Yoshihide)		 12415 Avatar for saltyshiomix
38. touyou
(Fujii Yosuke)		 11516 Avatar for touyou
39. shogo82148
(ICHINOSE Shogo)		 11361 Avatar for shogo82148
40. jfbastien
(JF Bastien)		 11207 Avatar for jfbastien
41. suzuki-shunsuke
(Shunsuke Suzuki)		 11069 Avatar for suzuki-shunsuke
42. coliff
(Christian Oliff)		 11034 Avatar for coliff
43. guitarrapc
(Ikiru Yoshizaki)		 10866 Avatar for guitarrapc
44. hsbt
(Hiroshi SHIBATA)		 10676 Avatar for hsbt
45. privatenumber
(Hiroki Osame)		 10616 Avatar for privatenumber
46. otiai10
(Hiromu OCHIAI)		 10581 Avatar for otiai10
47. 1amageek
(1amageek)		 10406 Avatar for 1amageek
48. xuwei-k
(kenji yoshida)		 9735 Avatar for xuwei-k
49. syoyo
(Syoyo Fujita)		 9629 Avatar for syoyo
50. sue445
(Go Sueyoshi)		 9572 Avatar for sue445
51. yanorei32
(Ray Yano | あねてあ)		 9335 Avatar for yanorei32
52. sobri909
(Matt Greenfield)		 9326 Avatar for sobri909
53. taiki-e
(Taiki Endo)		 9303 Avatar for taiki-e
54. ryota-murakami
(Ryota Murakami)		 9277 Avatar for ryota-murakami
55. seanchas116
(Ryohei Ikegami)		 9275 Avatar for seanchas116
56. lestrrat
(lestrrat)		 9191 Avatar for lestrrat
57. daitomanabe
(Daito Manabe)		 9031 Avatar for daitomanabe
58. tekezo
(Takayama Fumihiko)		 8661 Avatar for tekezo
59. edom18
(edo)		 8585 Avatar for edom18
60. EdamAme-x
(EdamAmex)		 8541 Avatar for EdamAme-x
61. yshrsmz
(Yasuhiro SHIMIZU)		 8476 Avatar for yshrsmz
62. fukayatsu
(Atsuo Fukaya)		 8386 Avatar for fukayatsu
63. Code-Hex
(Kei Kamikawa)		 8361 Avatar for Code-Hex
64. nateberkopec
(Nate Berkopec)		 8350 Avatar for nateberkopec
65. wadackel
(tsuyoshi wada)		 8346 Avatar for wadackel
66. breezewish
(Wish)		 8327 Avatar for breezewish
67. zonuexe
(USAMI Kenta)		 8321 Avatar for zonuexe
68. akameco
(akameco)		 8269 Avatar for akameco
69. ianlewis
(Ian Lewis)		 8121 Avatar for ianlewis
70. morizotter
(Morita Naoki)		 8041 Avatar for morizotter
71. lambdalisue
(Λlisue)		 8026 Avatar for lambdalisue
72. yug1224
(Yuji Yamaguchi)		 7889 Avatar for yug1224
73. ursm
(Keita Urashima)		 7839 Avatar for ursm
74. matsumotory
(Ryosuke Matsumoto / @matsumotory)		 7789 Avatar for matsumotory
75. ngs
(Atsushi NAGASE)		 7762 Avatar for ngs
76. kenn
(Kenn Ejima)		 7708 Avatar for kenn
77. koriym
(Akihito Koriyama)		 7665 Avatar for koriym
78. sotarok
(Sotaro Karasawa)		 7648 Avatar for sotarok
79. takahirom
(Takahiro Menju)		 7634 Avatar for takahirom
80. Anionix
(ᅟ᠎S⁢ho͏؜Tᅠakaᅟy⁣an︎aᅠg⁡i)		 7592 Avatar for Anionix
81. mika-f
(MOCHIZUKI Kanon)		 7575 Avatar for mika-f
82. XiaomingX
(Y11)		 7571 Avatar for XiaomingX
83. miyako
(Keisuke Miyako)		 7530 Avatar for miyako
84. tkoyama010
(Tetsuo Koyama)		 7481 Avatar for tkoyama010
85. hideakitai
(Hideaki Tai)		 7451 Avatar for hideakitai
86. conao3
(Naoya Yamashita)		 7367 Avatar for conao3
87. waylandzhang
(WAYLAND ZHANG)		 7357 Avatar for waylandzhang
88. sapphi-red
(翠)		 7320 Avatar for sapphi-red
89. champierre
(Junya Ishihara)		 7263 Avatar for champierre
90. k1LoW
(Ken’ichiro Oyama)		 7171 Avatar for k1LoW
91. vvakame
(Masahiro Wakame)		 7074 Avatar for vvakame
92. wkentaro
(Kentaro Wada)		 6827 Avatar for wkentaro
93. mattatz
(Masatatsu Nakamura)		 6776 Avatar for mattatz
94. ko1
(Koichi Sasada)		 6774 Avatar for ko1
95. hakatashi
(Koki Takahashi)		 6705 Avatar for hakatashi
96. matz
(Yukihiro "Matz" Matsumoto)		 6691 Avatar for matz
97. rob0pup
(Robin)		 6662 Avatar for rob0pup
98. xeodou
(xeodou)		 6655 Avatar for xeodou
99. ochyai
(Yoichi OCHIAI)		 6555 Avatar for ochyai
100. uribo
(Shinya Uryu)		 6505 Avatar for uribo
101. TakuSemba
(TakuSemba)		 6503 Avatar for TakuSemba
102. RobertTLange
(Robert Tjarko Lange)		 6485 Avatar for RobertTLange
103. mpyw
(mpyw)		 6441 Avatar for mpyw
104. mattn
(mattn)		 6435 Avatar for mattn
105. hhatto
(Hideo Hattori)		 6373 Avatar for hhatto
106. rosylilly
(Sho Kusano)		 6366 Avatar for rosylilly
107. kyubuns
(kyubuns)		 6326 Avatar for kyubuns
108. john-rocky
(Daisuke Majima)		 6324 Avatar for john-rocky
109. Saqoosha
(Saqoosha)		 6285 Avatar for Saqoosha
110. yuki-kimoto
(Yuki Kimoto)		 6199 Avatar for yuki-kimoto
111. takuoka
(Takuya Okamoto)		 6191 Avatar for takuoka
112. kexi
(Kei Nakayama)		 6191 Avatar for kexi
113. azu
(azu)		 6187 Avatar for azu
114. iebb
(ieb)		 6179 Avatar for iebb
115. hajimehoshi
(Hajime Hoshi)		 6167 Avatar for hajimehoshi
116. shu223
(Shuichi Tsutsumi)		 6064 Avatar for shu223
117. sxzz
(Kevin Deng)		 6033 Avatar for sxzz
118. magurotuna
(Yusuke Tanaka)		 6022 Avatar for magurotuna
119. eiel
(HIMURA Tomohiko)		 5998 Avatar for eiel
120. tk0miya
(Takeshi KOMIYA)		 5993 Avatar for tk0miya
121. TimOliver
(Tim Oliver)		 5973 Avatar for TimOliver
122. juno
(Junya Ogura)		 5924 Avatar for juno
123. deatiger
(deatiger)		 5900 Avatar for deatiger
124. bmf-san
(Kenta Takeuchi)		 5885 Avatar for bmf-san
125. Yesterday17
(Yesterday17)		 5862 Avatar for Yesterday17
126. dvcrn
(David)		 5807 Avatar for dvcrn
127. JohnTitor
(Yuki Okushi)		 5788 Avatar for JohnTitor
128. kmizu
(Kota Mizushima)		 5778 Avatar for kmizu
129. 2bbb
(2bit)		 5729 Avatar for 2bbb
130. PINTO0309
(Katsuya Hyodo)		 5679 Avatar for PINTO0309
131. Him188
(Him188)		 5659 Avatar for Him188
132. seratch
(Kazuhiro Sera)		 5637 Avatar for seratch
133. hotchpotch
(Yuichi Tateno (secon))		 5630 Avatar for hotchpotch
134. catnose99
(catnose)		 5604 Avatar for catnose99
135. guo-yu
(Guo Yu)		 5578 Avatar for guo-yu
136. ogaclejapan
(ogaclejapan)		 5565 Avatar for ogaclejapan
137. soskek
(Sosuke Kobayashi)		 5550 Avatar for soskek
138. trust-delta
(trust-delta)		 5509 Avatar for trust-delta
139. r-plus
(r-plus)		 5403 Avatar for r-plus
140. cxxxr
(cxxxr)		 5384 Avatar for cxxxr
141. onevcat
(Wei Wang)		 5383 Avatar for onevcat
142. dennybritz
(Denny Britz)		 5315 Avatar for dennybritz
143. hakuturu583
(Masaya Kataoka)		 5289 Avatar for hakuturu583
144. anchan828
(Keigo Ando)		 5275 Avatar for anchan828
145. mumoshu
(Yusuke Kuoka)		 5274 Avatar for mumoshu
146. hi-ogawa
(Hiroshi Ogawa)		 5265 Avatar for hi-ogawa
147. yasulab
(Yohei Yasukawa)		 5263 Avatar for yasulab
148. halogenandtoast
(Matthew Mongeau)		 5126 Avatar for halogenandtoast
149. taea
(taea)		 5032 Avatar for taea
150. gfx
(FUJI Goro)		 4970 Avatar for gfx
151. lacolaco
(Suguru Inatomi)		 4952 Avatar for lacolaco
152. Hiroshiba
(Hiroshiba)		 4940 Avatar for Hiroshiba
153. europanite
(europanite)		 4936 Avatar for europanite
154. masuidrive
(Yuichiro MASUI)		 4936 Avatar for masuidrive
155. hirokidaichi
(hirokidaichi)		 4931 Avatar for hirokidaichi
156. GalvinGao
(GalvinGao)		 4919 Avatar for GalvinGao
157. ykzts
(Yamagishi Kazutoshi)		 4898 Avatar for ykzts
158. nwiizo
(nwiizo)		 4859 Avatar for nwiizo
159. zchee
(Koichi Shiraishi)		 4852 Avatar for zchee
160. AkihiroSuda
(Akihiro Suda)		 4847 Avatar for AkihiroSuda
161. sonots
(Naotoshi Seo)		 4825 Avatar for sonots
162. uzulla
(uzulla / Junichi Ishida)		 4816 Avatar for uzulla
163. Jannchie
(Jianqi Pan)		 4815 Avatar for Jannchie
164. sorah
(Sorah Fukumori)		 4757 Avatar for sorah
165. kazupon
(kazuya kawaguchi)		 4753 Avatar for kazupon
166. mesqueeb
(Luca Ban)		 4748 Avatar for mesqueeb
167. toshimaru
(Toshimaru)		 4738 Avatar for toshimaru
168. miya0001
(Takayuki Miyauchi)		 4711 Avatar for miya0001
169. dalance
(Naoya Hatta)		 4664 Avatar for dalance
170. peaceiris
(Shohei Ueda)		 4608 Avatar for peaceiris
171. inokawa
()		 4575 Avatar for inokawa
172. mirakui
(Issei Naruta)		 4574 Avatar for mirakui
173. dahatake
(Daiyu Hatakeyama)		 4505 Avatar for dahatake
174. yujiosaka
(yujiosaka)		 4485 Avatar for yujiosaka
175. k0i
(k0i)		 4436 Avatar for k0i
176. kakutani
(Kakutani Shintaro)		 4387 Avatar for kakutani
177. IloveNooodles
(Muhammad Garebaldhie Er Rahman)		 4366 Avatar for IloveNooodles
178. sevenc-nanashi
(Nanashi.)		 4331 Avatar for sevenc-nanashi
179. fujiwara
(FUJIWARA Shunichiro)		 4275 Avatar for fujiwara
180. baku89
(Baku Hashimoto)		 4260 Avatar for baku89
181. anatawa12
(anatawa12)		 4260 Avatar for anatawa12
182. kou
(Sutou Kouhei)		 4235 Avatar for kou
183. enliven17
(cankat)		 4224 Avatar for enliven17
184. komagata
(Masaki Komagata)		 4212 Avatar for komagata
185. koxudaxi
(Koudai Aono)		 4194 Avatar for koxudaxi
186. kjj6198
(Kalan)		 4180 Avatar for kjj6198
187. nov
(Nov Matake)		 4178 Avatar for nov
188. peppy
(Dean Herbert)		 4150 Avatar for peppy
189. ksoichiro
(Soichiro Kashima)		 4150 Avatar for ksoichiro
190. takahashim
(Masayoshi Takahashi)		 4100 Avatar for takahashim
191. amatsuda
(Akira Matsuda)		 4061 Avatar for amatsuda
192. kamipo
(Ryuta Kamizono)		 3988 Avatar for kamipo
193. ucan-lab
(ucan-lab)		 3986 Avatar for ucan-lab
194. bee-san
(Autumn (Bee))		 3984 Avatar for bee-san
195. AAkira
(Akira Aratani)		 3979 Avatar for AAkira
196. sgr-ksmt
(Suguru Kishimoto)		 3934 Avatar for sgr-ksmt
197. himkt
(himkt)		 3918 Avatar for himkt
198. making
(Toshiaki Maki)		 3850 Avatar for making
199. kawasima
(Yoshitaka Kawashima)		 3846 Avatar for kawasima
200. superbrothers
(Kazuki Suda)		 3844 Avatar for superbrothers
201. tokorom
(tokorom)		 3825 Avatar for tokorom
202. inductor
(Kohei Ota (inductor))		 3776 Avatar for inductor
203. takano32
(TAKANO Mitsuhiro)		 3735 Avatar for takano32
204. cpojer
(Christoph Nakazawa)		 3727 Avatar for cpojer
205. toastkidjp
(Toast kid)		 3709 Avatar for toastkidjp
206. mashharuki
(Haruki Kondo)		 3699 Avatar for mashharuki
207. manju-summoner
(manju summoner)		 3657 Avatar for manju-summoner
208. nghialv
(nghialv)		 3637 Avatar for nghialv
209. eltociear
(Ikko Eltociear Ashimine)		 3628 Avatar for eltociear
210. syumai
(syumai)		 3622 Avatar for syumai
211. motemen
(Hironao OTSUBO)		 3602 Avatar for motemen
212. MITSUHIRO-KURIKI
(K.Mitsuhiro)		 3575 Avatar for MITSUHIRO-KURIKI
213. smorimoto
(Sora Morimoto)		 3563 Avatar for smorimoto
214. davetang
(Dave Tang)		 3544 Avatar for davetang
215. minaminao
(minaminao)		 3542 Avatar for minaminao
216. udzura
(Kondo Uchio)		 3527 Avatar for udzura
217. kadamwhite
(K Adam White)		 3523 Avatar for kadamwhite
218. d-date
(Daiki Matsudate)		 3520 Avatar for d-date
219. wasabeef
(Daichi Furiya)		 3483 Avatar for wasabeef
220. h6ah4i
(Haruki Hasegawa)		 3480 Avatar for h6ah4i
221. tmori
(Takashi Mori)		 3476 Avatar for tmori
222. heestand-xyz
(Anton Heestand)		 3473 Avatar for heestand-xyz
223. haqishen
(haqishen)		 3460 Avatar for haqishen
224. satoruhiga
(Satoru Higa)		 3450 Avatar for satoruhiga
225. potato4d
(Takuma HANATANI)		 3441 Avatar for potato4d
226. m3m0r7
(memory)		 3432 Avatar for m3m0r7
227. Watson1978
(Shizuo Fujita)		 3431 Avatar for Watson1978
228. bobbens
(Edgar Simo-Serra)		 3423 Avatar for bobbens
229. marty-suzuki
(Taiki Suzuki)		 3380 Avatar for marty-suzuki
230. drakeet
(Drakeet)		 3378 Avatar for drakeet
231. p-x9
()		 3372 Avatar for p-x9
232. shin1x1
(Masashi Shinbara)		 3354 Avatar for shin1x1
233. ninoseki
(Manabu Niseki)		 3354 Avatar for ninoseki
234. rikusato0
(Riku Sato)		 3348 Avatar for rikusato0
235. aitikgupta
(Aitik Gupta)		 3307 Avatar for aitikgupta
236. craftzdog
(Takuya Matsuyama)		 3302 Avatar for craftzdog
237. nobu
(Nobuyoshi Nakada)		 3294 Avatar for nobu
238. aviatesk
(Shuhei Kadowaki)		 3288 Avatar for aviatesk
239. shimbaco
(Shimba, Koji)		 3286 Avatar for shimbaco
240. mitmul
(Shunta Saito)		 3277 Avatar for mitmul
241. shirakaba
(Jamie Birch)		 3266 Avatar for shirakaba
242. syuilo
(syuilo)		 3265 Avatar for syuilo
243. Kazuhito00
(KazuhitoTakahashi)		 3233 Avatar for Kazuhito00
244. Layzie
(HIRAKI Satoru)		 3232 Avatar for Layzie
245. muukii
(Hiroshi Kimura)		 3224 Avatar for muukii
246. lightsound
(しまぶー)		 3224 Avatar for lightsound
247. c-bata
(c-bata)		 3224 Avatar for c-bata
248. hayatoito
(Hayato Ito)		 3212 Avatar for hayatoito
249. moznion
(moznion)		 3206 Avatar for moznion
250. yhatt
(Yuki Hattori)		 3202 Avatar for yhatt
251. suin
()		 3176 Avatar for suin
252. matchai
(Matan Kushner)		 3167 Avatar for matchai
253. Naturalclar
(Jesse Katsumata)		 3159 Avatar for Naturalclar
254. konn
(Hiromi Ishii)		 3119 Avatar for konn
255. acgotaku
(雪月秋水)		 3112 Avatar for acgotaku
256. hrsh7th
(hrsh7th)		 3100 Avatar for hrsh7th

Organizations

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