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 2026-08-01 12:27:15 +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 139527 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. bannzai
(bannzai)		 99495 Avatar for bannzai
2. kishikawakatsumi
(Kishikawa Katsumi)		 42360 Avatar for kishikawakatsumi
3. terasakisatoshi
(Satoshi Terasaki)		 37477 Avatar for terasakisatoshi
4. MagicalTux
(Mark Karpelès)		 34698 Avatar for MagicalTux
5. atyenoria
(Akinori Nakajima)		 32146 Avatar for atyenoria
6. houko
(Evan)		 28868 Avatar for houko
7. rsasaki0109
(Ryohei Sasaki)		 26355 Avatar for rsasaki0109
8. mizchi
(Kotaro Chikuba)		 23241 Avatar for mizchi
9. amachang
(Hitoshi Amano)		 22559 Avatar for amachang
10. unhappychoice
(Yuji Ueki)		 22264 Avatar for unhappychoice
11. j5ik2o
(Junichi Kato)		 21737 Avatar for j5ik2o
12. tokuhirom
(Tokuhiro Matsuno)		 20666 Avatar for tokuhirom
13. yuiseki
(yuiseki)		 20432 Avatar for yuiseki
14. lhl
(Leonard)		 18352 Avatar for lhl
15. Songmu
(Masayuki Matsuki)		 18332 Avatar for Songmu
16. fumiya-kume
(kuu(Fumiya Kume))		 18153 Avatar for fumiya-kume
17. dev-yakuza
(DeKu)		 18123 Avatar for dev-yakuza
18. mizzy
(Gosuke Miyashita)		 17910 Avatar for mizzy
19. shinh
(Shinichiro Hamaji)		 17748 Avatar for shinh
20. k-takeuchi220
(Katsushi Takeuchi)		 17634 Avatar for k-takeuchi220
21. kurone-kito
(Kuroné Kito (黒音キト))		 15526 Avatar for kurone-kito
22. ThaddeusJiang
(天海 原 / AMAMI Hara)		 15491 Avatar for ThaddeusJiang
23. Coordinate-Cat
(Ocat)		 15485 Avatar for Coordinate-Cat
24. winebarrel
(Genki Sugawara)		 15455 Avatar for winebarrel
25. manman4
(manman4)		 15403 Avatar for manman4
26. harupy
(Harutaka Kawamura)		 14880 Avatar for harupy
27. bokuweb
(bokuweb)		 14760 Avatar for bokuweb
28. ubugeeei
(ubugeeei)		 14370 Avatar for ubugeeei
29. babarot
(Masaki ISHIYAMA)		 14355 Avatar for babarot
30. baba-s
(baba_s)		 13893 Avatar for baba-s
31. YumNumm
(Ryotaro Onoue)		 13647 Avatar for YumNumm
32. siketyan
(Naoki Ikeguchi)		 13434 Avatar for siketyan
33. spinute
(Pin)		 12747 Avatar for spinute
34. saltyshiomix
(Shiono Yoshihide)		 12486 Avatar for saltyshiomix
35. sile
(Takeru Ohta)		 12222 Avatar for sile
36. sksat
(sksat)		 11984 Avatar for sksat
37. touyou
(Fujii Yosuke)		 11414 Avatar for touyou
38. shogo82148
(ICHINOSE Shogo)		 11261 Avatar for shogo82148
39. jfbastien
(JF Bastien)		 11087 Avatar for jfbastien
40. suzuki-shunsuke
(Shunsuke Suzuki)		 11035 Avatar for suzuki-shunsuke
41. coliff
(Christian Oliff)		 10839 Avatar for coliff
42. yamadashy
(Kazuki Yamada)		 10676 Avatar for yamadashy
43. guitarrapc
(Ikiru Yoshizaki)		 10635 Avatar for guitarrapc
44. hsbt
(Hiroshi SHIBATA)		 10287 Avatar for hsbt
45. 1amageek
(1amageek)		 10241 Avatar for 1amageek
46. privatenumber
(Hiroki Osame)		 10162 Avatar for privatenumber
47. otiai10
(Hiromu OCHIAI)		 10145 Avatar for otiai10
48. xuwei-k
(kenji yoshida)		 9734 Avatar for xuwei-k
49. syoyo
(Syoyo Fujita)		 9625 Avatar for syoyo
50. sue445
(Go Sueyoshi)		 9584 Avatar for sue445
51. yanorei32
(Ray Yano | あねてあ)		 9350 Avatar for yanorei32
52. taiki-e
(Taiki Endo)		 9328 Avatar for taiki-e
53. ryota-murakami
(Ryota Murakami)		 9298 Avatar for ryota-murakami
54. seanchas116
(Ryohei Ikegami)		 9067 Avatar for seanchas116
55. sobri909
(Matt Greenfield)		 8759 Avatar for sobri909
56. lestrrat
(lestrrat)		 8716 Avatar for lestrrat
57. tekezo
(Takayama Fumihiko)		 8658 Avatar for tekezo
58. yshrsmz
(Yasuhiro SHIMIZU)		 8653 Avatar for yshrsmz
59. daitomanabe
(Daito Manabe)		 8532 Avatar for daitomanabe
60. fukayatsu
(Atsuo Fukaya)		 8437 Avatar for fukayatsu
61. edom18
(edo)		 8432 Avatar for edom18
62. nateberkopec
(Nate Berkopec)		 8343 Avatar for nateberkopec
63. wadackel
(tsuyoshi wada)		 8230 Avatar for wadackel
64. lambdalisue
(Λlisue)		 8159 Avatar for lambdalisue
65. rjyo
(Jo)		 8144 Avatar for rjyo
66. EdamAme-x
(EdamAmex)		 8124 Avatar for EdamAme-x
67. akameco
(akameco)		 8041 Avatar for akameco
68. Code-Hex
(Kei Kamikawa)		 8037 Avatar for Code-Hex
69. breezewish
(Wish)		 8018 Avatar for breezewish
70. ianlewis
(Ian Lewis)		 8004 Avatar for ianlewis
71. zonuexe
(USAMI Kenta)		 7953 Avatar for zonuexe
72. yug1224
(Yuji Yamaguchi)		 7918 Avatar for yug1224
73. takahirom
(Takahiro Menju)		 7868 Avatar for takahirom
74. morizotter
(Morita Naoki)		 7784 Avatar for morizotter
75. koriym
(Akihito Koriyama)		 7712 Avatar for koriym
76. kenn
(Kenn Ejima)		 7707 Avatar for kenn
77. ursm
(Keita Urashima)		 7653 Avatar for ursm
78. sotarok
(Sotaro Karasawa)		 7630 Avatar for sotarok
79. Anionix
(ᅟ᠎S⁢ho͏؜Tᅠakaᅟy⁣an︎aᅠg⁡i)		 7589 Avatar for Anionix
80. ngs
(Atsushi NAGASE)		 7542 Avatar for ngs
81. matsumotory
(Ryosuke Matsumoto / @matsumotory)		 7503 Avatar for matsumotory
82. mika-f
(MOCHIZUKI Kanon)		 7474 Avatar for mika-f
83. sapphi-red
(翠)		 7449 Avatar for sapphi-red
84. XiaomingX
(Y11)		 7423 Avatar for XiaomingX
85. conao3
(Naoya Yamashita)		 7390 Avatar for conao3
86. tkoyama010
(Tetsuo Koyama)		 7275 Avatar for tkoyama010
87. champierre
(Junya Ishihara)		 7273 Avatar for champierre
88. miyako
(Keisuke Miyako)		 7264 Avatar for miyako
89. k1LoW
(Ken’ichiro Oyama)		 7199 Avatar for k1LoW
90. waylandzhang
(WAYLAND ZHANG)		 7159 Avatar for waylandzhang
91. hideakitai
(Hideaki Tai)		 7156 Avatar for hideakitai
92. vvakame
(Masahiro Wakame)		 7053 Avatar for vvakame
93. rob0pup
(Robin)		 6810 Avatar for rob0pup
94. mattatz
(Masatatsu Nakamura)		 6788 Avatar for mattatz
95. ko1
(Koichi Sasada)		 6721 Avatar for ko1
96. matz
(Yukihiro "Matz" Matsumoto)		 6658 Avatar for matz
97. hakatashi
(Koki Takahashi)		 6637 Avatar for hakatashi
98. wkentaro
(Kentaro Wada)		 6551 Avatar for wkentaro
99. timakin
(Seiji Takahashi)		 6526 Avatar for timakin
100. xeodou
(xeodou)		 6502 Avatar for xeodou
101. TakuSemba
(TakuSemba)		 6477 Avatar for TakuSemba
102. mattn
(mattn)		 6361 Avatar for mattn
103. hhatto
(Hideo Hattori)		 6358 Avatar for hhatto
104. ochyai
(Yoichi OCHIAI)		 6346 Avatar for ochyai
105. rosylilly
(Sho Kusano)		 6331 Avatar for rosylilly
106. mpyw
(mpyw)		 6300 Avatar for mpyw
107. uribo
(Shinya Uryu)		 6276 Avatar for uribo
108. azu
(azu)		 6245 Avatar for azu
109. Saqoosha
(Saqoosha)		 6241 Avatar for Saqoosha
110. RobertTLange
(Robert Tjarko Lange)		 6228 Avatar for RobertTLange
111. yuki-kimoto
(Yuki Kimoto)		 6205 Avatar for yuki-kimoto
112. kyubuns
(kyubuns)		 6176 Avatar for kyubuns
113. sxzz
(Kevin Deng)		 6158 Avatar for sxzz
114. john-rocky
(Daisuke Majima)		 6146 Avatar for john-rocky
115. hajimehoshi
(Hajime Hoshi)		 6140 Avatar for hajimehoshi
116. kexi
(Kei Nakayama)		 6067 Avatar for kexi
117. iebb
(ieb)		 6063 Avatar for iebb
118. magurotuna
(Yusuke Tanaka)		 6014 Avatar for magurotuna
119. eiel
(HIMURA Tomohiko)		 5988 Avatar for eiel
120. juno
(Junya Ogura)		 5886 Avatar for juno
121. shu223
(Shuichi Tsutsumi)		 5880 Avatar for shu223
122. TimOliver
(Tim Oliver)		 5848 Avatar for TimOliver
123. dvcrn
(David)		 5829 Avatar for dvcrn
124. catnose99
(catnose)		 5774 Avatar for catnose99
125. deatiger
(deatiger)		 5767 Avatar for deatiger
126. tk0miya
(Takeshi KOMIYA)		 5749 Avatar for tk0miya
127. 2bbb
(2bit)		 5683 Avatar for 2bbb
128. JohnTitor
(Yuki Okushi)		 5675 Avatar for JohnTitor
129. PINTO0309
(Katsuya Hyodo)		 5664 Avatar for PINTO0309
130. ogaclejapan
(ogaclejapan)		 5650 Avatar for ogaclejapan
131. bmf-san
(Kenta Takeuchi)		 5639 Avatar for bmf-san
132. takuoka
(Takuya Okamoto)		 5635 Avatar for takuoka
133. Him188
(Him188)		 5604 Avatar for Him188
134. guo-yu
(Guo Yu)		 5578 Avatar for guo-yu
135. kmizu
(Kota Mizushima)		 5571 Avatar for kmizu
136. Yesterday17
(Yesterday17)		 5531 Avatar for Yesterday17
137. seratch
(Kazuhiro Sera)		 5502 Avatar for seratch
138. soskek
(Sosuke Kobayashi)		 5450 Avatar for soskek
139. r-plus
(r-plus)		 5449 Avatar for r-plus
140. hotchpotch
(Yuichi Tateno (secon))		 5426 Avatar for hotchpotch
141. cxxxr
(cxxxr)		 5359 Avatar for cxxxr
142. onevcat
(Wei Wang)		 5357 Avatar for onevcat
143. trust-delta
(trust-delta)		 5352 Avatar for trust-delta
144. anchan828
(Keigo Ando)		 5321 Avatar for anchan828
145. mumoshu
(Yusuke Kuoka)		 5295 Avatar for mumoshu
146. hakuturu583
(Masaya Kataoka)		 5284 Avatar for hakuturu583
147. yasulab
(Yohei Yasukawa)		 5276 Avatar for yasulab
148. hi-ogawa
(Hiroshi Ogawa)		 5250 Avatar for hi-ogawa
149. dennybritz
(Denny Britz)		 5204 Avatar for dennybritz
150. halogenandtoast
(Matthew Mongeau)		 5102 Avatar for halogenandtoast
151. hirokidaichi
(hirokidaichi)		 4985 Avatar for hirokidaichi
152. lacolaco
(Suguru Inatomi)		 4937 Avatar for lacolaco
153. europanite
(europanite)		 4923 Avatar for europanite
154. gfx
(FUJI Goro)		 4917 Avatar for gfx
155. nwiizo
(nwiizo)		 4911 Avatar for nwiizo
156. GalvinGao
(GalvinGao)		 4910 Avatar for GalvinGao
157. taea
(taea)		 4891 Avatar for taea
158. Hiroshiba
(Hiroshiba)		 4859 Avatar for Hiroshiba
159. masuidrive
(Yuichiro MASUI)		 4817 Avatar for masuidrive
160. AkihiroSuda
(Akihiro Suda)		 4801 Avatar for AkihiroSuda
161. uzulla
(uzulla / Junichi Ishida)		 4796 Avatar for uzulla
162. Jannchie
(Jianqi Pan)		 4789 Avatar for Jannchie
163. kazupon
(kazuya kawaguchi)		 4753 Avatar for kazupon
164. sorah
(Sorah Fukumori)		 4719 Avatar for sorah
165. mesqueeb
(Luca Ban)		 4714 Avatar for mesqueeb
166. toshimaru
(Toshimaru)		 4710 Avatar for toshimaru
167. ykzts
(Yamagishi Kazutoshi)		 4710 Avatar for ykzts
168. dalance
(Naoya Hatta)		 4627 Avatar for dalance
169. inokawa
()		 4570 Avatar for inokawa
170. zchee
(Koichi Shiraishi)		 4564 Avatar for zchee
171. peaceiris
(Shohei Ueda)		 4521 Avatar for peaceiris
172. mirakui
(Issei Naruta)		 4506 Avatar for mirakui
173. dahatake
(Daiyu Hatakeyama)		 4490 Avatar for dahatake
174. sonots
(Naotoshi Seo)		 4475 Avatar for sonots
175. miya0001
(Takayuki Miyauchi)		 4445 Avatar for miya0001
176. k0i
(k0i)		 4404 Avatar for k0i
177. IloveNooodles
(Muhammad Garebaldhie Er Rahman)		 4383 Avatar for IloveNooodles
178. sevenc-nanashi
(Nanashi.)		 4363 Avatar for sevenc-nanashi
179. fujiwara
(FUJIWARA Shunichiro)		 4271 Avatar for fujiwara
180. qwexvf
(Maruchan)		 4270 Avatar for qwexvf
181. kou
(Sutou Kouhei)		 4250 Avatar for kou
182. anatawa12
(anatawa12)		 4246 Avatar for anatawa12
183. baku89
(Baku Hashimoto)		 4237 Avatar for baku89
184. enliven17
(cankat)		 4227 Avatar for enliven17
185. peppy
(Dean Herbert)		 4216 Avatar for peppy
186. nov
(Nov Matake)		 4208 Avatar for nov
187. kakutani
(Kakutani Shintaro)		 4191 Avatar for kakutani
188. komagata
(Masaki Komagata)		 4184 Avatar for komagata
189. koxudaxi
(Koudai Aono)		 4176 Avatar for koxudaxi
190. ksoichiro
(Soichiro Kashima)		 4171 Avatar for ksoichiro
191. kjj6198
(Kalan)		 4158 Avatar for kjj6198
192. yujiosaka
(yujiosaka)		 4114 Avatar for yujiosaka
193. pmq20
(Minqi Pan)		 4098 Avatar for pmq20
194. amatsuda
(Akira Matsuda)		 4061 Avatar for amatsuda
195. takahashim
(Masayoshi Takahashi)		 4004 Avatar for takahashim
196. ucan-lab
(ucan-lab)		 3949 Avatar for ucan-lab
197. kamipo
(Ryuta Kamizono)		 3942 Avatar for kamipo
198. AAkira
(Akira Aratani)		 3918 Avatar for AAkira
199. bee-san
(Autumn (Bee))		 3882 Avatar for bee-san
200. sgr-ksmt
(Suguru Kishimoto)		 3871 Avatar for sgr-ksmt
201. tokorom
(tokorom)		 3863 Avatar for tokorom
202. superbrothers
(Kazuki Suda)		 3856 Avatar for superbrothers
203. m3m0r7
(memory)		 3815 Avatar for m3m0r7
204. himkt
(himkt)		 3753 Avatar for himkt
205. making
(Toshiaki Maki)		 3748 Avatar for making
206. nghialv
(nghialv)		 3745 Avatar for nghialv
207. syumai
(syumai)		 3739 Avatar for syumai
208. toastkidjp
(Toast kid)		 3728 Avatar for toastkidjp
209. cpojer
(Christoph Nakazawa)		 3717 Avatar for cpojer
210. kawasima
(Yoshitaka Kawashima)		 3660 Avatar for kawasima
211. mashharuki
(Haruki Kondo)		 3658 Avatar for mashharuki
212. davetang
(Dave Tang)		 3573 Avatar for davetang
213. MITSUHIRO-KURIKI
(K.Mitsuhiro)		 3570 Avatar for MITSUHIRO-KURIKI
214. udzura
(Kondo Uchio)		 3565 Avatar for udzura
215. smorimoto
(Sora Morimoto)		 3541 Avatar for smorimoto
216. eltociear
(Ikko Eltociear Ashimine)		 3530 Avatar for eltociear
217. bobbens
(Edgar Simo-Serra)		 3529 Avatar for bobbens
218. inductor
(Kohei Ota (inductor))		 3528 Avatar for inductor
219. wasabeef
(Daichi Furiya)		 3509 Avatar for wasabeef
220. h6ah4i
(Haruki Hasegawa)		 3490 Avatar for h6ah4i
221. p-x9
()		 3458 Avatar for p-x9
222. haqishen
(haqishen)		 3452 Avatar for haqishen
223. heestand-xyz
(Anton Heestand)		 3425 Avatar for heestand-xyz
224. kadamwhite
(K Adam White)		 3424 Avatar for kadamwhite
225. motemen
(Hironao OTSUBO)		 3420 Avatar for motemen
226. minaminao
(minaminao)		 3397 Avatar for minaminao
227. marty-suzuki
(Taiki Suzuki)		 3379 Avatar for marty-suzuki
228. potato4d
(Takuma HANATANI)		 3360 Avatar for potato4d
229. d-date
(Daiki Matsudate)		 3358 Avatar for d-date
230. drakeet
(Drakeet)		 3356 Avatar for drakeet
231. syuilo
(syuilo)		 3352 Avatar for syuilo
232. koji
(koji)		 3347 Avatar for koji
233. shin1x1
(Masashi Shinbara)		 3339 Avatar for shin1x1
234. satoruhiga
(Satoru Higa)		 3333 Avatar for satoruhiga
235. yhatt
(Yuki Hattori)		 3306 Avatar for yhatt
236. shimbaco
(Shimba, Koji)		 3301 Avatar for shimbaco
237. nobu
(Nobuyoshi Nakada)		 3292 Avatar for nobu
238. Watson1978
(Shizuo Fujita)		 3274 Avatar for Watson1978
239. muukii
(Hiroshi Kimura)		 3271 Avatar for muukii
240. shirakaba
(Jamie Birch)		 3265 Avatar for shirakaba
241. aviatesk
(Shuhei Kadowaki)		 3251 Avatar for aviatesk
242. ninoseki
(Manabu Niseki)		 3240 Avatar for ninoseki
243. rikusato0
(Riku Sato)		 3232 Avatar for rikusato0
244. craftzdog
(Takuya Matsuyama)		 3230 Avatar for craftzdog
245. aitikgupta
(Aitik Gupta)		 3224 Avatar for aitikgupta
246. hrsh7th
(hrsh7th)		 3221 Avatar for hrsh7th
247. tmori
(Takashi Mori)		 3207 Avatar for tmori
248. hayatoito
(Hayato Ito)		 3199 Avatar for hayatoito
249. c-bata
(c-bata)		 3187 Avatar for c-bata
250. Kazuhito00
(KazuhitoTakahashi)		 3180 Avatar for Kazuhito00
251. matchai
(Matan Kushner)		 3176 Avatar for matchai
252. mitmul
(Shunta Saito)		 3173 Avatar for mitmul
253. takano32
(TAKANO Mitsuhiro)		 3167 Avatar for takano32
254. lightsound
(しまぶー)		 3151 Avatar for lightsound
255. suin
()		 3137 Avatar for suin
256. manju-summoner
(manju summoner)		 3129 Avatar for manju-summoner

Organizations

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