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 2026-09-01 22:30:17 +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 public commits for each user. There are 140714 total users in the region and you need at least 126 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/USERNAME.svg)](https://user-badge.committers.top/japan/USERNAME)
For organizations, you need to use a slightly different markup: 
[![committers.top badge](https://org-badge.committers.top/japan/ORGNAME.svg)](https://org-badge.committers.top/japan/ORGNAME)
In case you aren't currently ranked on this page, you'll simply receive an "unranked" badge.

Rank User Contribs Picture
1. MagicalTux
(Mark Karpelès)		 35109 Avatar for MagicalTux
2. refirst11
()		 34540 Avatar for refirst11
3. rsasaki0109
(Ryohei Sasaki)		 25583 Avatar for rsasaki0109
4. Takazudo
(Takeshi Takatsudo)		 19609 Avatar for Takazudo
5. mizchi
(Kotaro Chikuba)		 18103 Avatar for mizchi
6. yuiseki
(yuiseki)		 17275 Avatar for yuiseki
7. tokuhirom
(Tokuhiro Matsuno)		 16883 Avatar for tokuhirom
8. j5ik2o
(Junichi Kato)		 14371 Avatar for j5ik2o
9. atusy
()		 11217 Avatar for atusy
10. ncaq
()		 10832 Avatar for ncaq
11. fumiya-kume
(kuu(Fumiya Kume))		 10336 Avatar for fumiya-kume
12. syoyo
(Syoyo Fujita)		 9723 Avatar for syoyo
13. lhl
(Leonard)		 9655 Avatar for lhl
14. unhappychoice
(Yuji Ueki)		 9414 Avatar for unhappychoice
15. sile
(Takeru Ohta)		 9317 Avatar for sile
16. yanorei32
(Ray Yano | あねてあ)		 9174 Avatar for yanorei32
17. nao1215
(CHIKAMATSU Naohiro)		 9143 Avatar for nao1215
18. ubugeeei
(ubugeeei)		 9045 Avatar for ubugeeei
19. zonuexe
(USAMI Kenta)		 8980 Avatar for zonuexe
20. tekezo
(Takayama Fumihiko)		 8846 Avatar for tekezo
21. yaneurao
(yaneurao)		 8698 Avatar for yaneurao
22. miyako
(Keisuke Miyako)		 8383 Avatar for miyako
23. shogo82148
(ICHINOSE Shogo)		 8240 Avatar for shogo82148
24. shinaoka
(Hiroshi Shinaoka)		 8006 Avatar for shinaoka
25. matz
(Yukihiro "Matz" Matsumoto)		 7927 Avatar for matz
26. 1amageek
(1amageek)		 7791 Avatar for 1amageek
27. manman4
(manman4)		 7575 Avatar for manman4
28. mizzy
(Gosuke Miyashita)		 7471 Avatar for mizzy
29. kurone-kito
(Kuroné Kito (黒音キト))		 7298 Avatar for kurone-kito
30. koriym
(Akihito Koriyama)		 7202 Avatar for koriym
31. ko1
(Koichi Sasada)		 7102 Avatar for ko1
32. kawasima
(Yoshitaka Kawashima)		 7071 Avatar for kawasima
33. taiki-e
(Taiki Endo)		 7066 Avatar for taiki-e
34. hsbt
(Hiroshi SHIBATA)		 6983 Avatar for hsbt
35. YumNumm
(Ryotaro Onoue)		 6447 Avatar for YumNumm
36. bannzai
(bannzai)		 6433 Avatar for bannzai
37. sue445
(Go Sueyoshi)		 6321 Avatar for sue445
38. ryota-murakami
(Ryota Murakami)		 6313 Avatar for ryota-murakami
39. lestrrat
(lestrrat)		 6280 Avatar for lestrrat
40. guitarrapc
(Ikiru Yoshizaki)		 6071 Avatar for guitarrapc
41. k1LoW
(Ken’ichiro Oyama)		 6048 Avatar for k1LoW
42. yuki-kimoto
(Yuki Kimoto)		 5943 Avatar for yuki-kimoto
43. baseballyama
(Yuichiro Yamashita)		 5900 Avatar for baseballyama
44. hakatashi
(Koki Takahashi)		 5754 Avatar for hakatashi
45. kojix2
()		 5690 Avatar for kojix2
46. EdamAme-x
(EdamAmex)		 5576 Avatar for EdamAme-x
47. wajahat-ali-mir-dev
(Wajahat Ali Mir)		 5551 Avatar for wajahat-ali-mir-dev
48. katahiromz
(Katayama Hirofumi MZ)		 5484 Avatar for katahiromz
49. mattn
(mattn)		 5445 Avatar for mattn
50. xuwei-k
(kenji yoshida)		 5332 Avatar for xuwei-k
51. sksat
(sksat)		 5245 Avatar for sksat
52. houko
(Evan)		 5226 Avatar for houko
53. ursm
(Keita Urashima)		 5108 Avatar for ursm
54. azu
(azu)		 5091 Avatar for azu
55. winebarrel
(Genki Sugawara)		 5037 Avatar for winebarrel
56. bootjp
(Yoshiaki Ueda (bootjp))		 4966 Avatar for bootjp
57. 2bbb
(2bit)		 4942 Avatar for 2bbb
58. ytakano
(ytakano)		 4756 Avatar for ytakano
59. zchee
(Koichi Shiraishi)		 4708 Avatar for zchee
60. PINTO0309
(Katsuya Hyodo)		 4606 Avatar for PINTO0309
61. making
(Toshiaki Maki)		 4537 Avatar for making
62. otnc
(otoneko.)		 4484 Avatar for otnc
63. takahashim
(Masayoshi Takahashi)		 4465 Avatar for takahashim
64. nazozokc
(nazozokc)		 4365 Avatar for nazozokc
65. jiangzhuo
(Jiangzhuo )		 4266 Avatar for jiangzhuo
66. LumaKernel
(Luma)		 4233 Avatar for LumaKernel
67. dalance
(Naoya Hatta)		 4222 Avatar for dalance
68. wkentaro
(Kentaro Wada)		 4174 Avatar for wkentaro
69. europanite
(europanite)		 4172 Avatar for europanite
70. sxzz
(Kevin Deng)		 4080 Avatar for sxzz
71. coji
(Coji Mizoguchi)		 3911 Avatar for coji
72. kmizu
(Kota Mizushima)		 3897 Avatar for kmizu
73. halogenandtoast
(Matthew Mongeau)		 3886 Avatar for halogenandtoast
74. himkt
(himkt)		 3803 Avatar for himkt
75. tk0miya
(Takeshi KOMIYA)		 3793 Avatar for tk0miya
76. PTOM76
(Pitan)		 3783 Avatar for PTOM76
77. akiomik
(Akiomi KAMAKURA)		 3766 Avatar for akiomik
78. amatsuda
(Akira Matsuda)		 3709 Avatar for amatsuda
79. toastkidjp
(Toast kid)		 3685 Avatar for toastkidjp
80. myuon
(myuon)		 3662 Avatar for myuon
81. fujiwara
(FUJIWARA Shunichiro)		 3630 Avatar for fujiwara
82. 0x0c
(Akira MATSUDA)		 3547 Avatar for 0x0c
83. yamadashy
(Kazuki Yamada)		 3545 Avatar for yamadashy
84. mackysoft
(Makihiro)		 3532 Avatar for mackysoft
85. gfx
(FUJI Goro)		 3499 Avatar for gfx
86. SebastienGllmt
(Sebastien Guillemot)		 3425 Avatar for SebastienGllmt
87. mashharuki
(Haruki Kondo)		 3407 Avatar for mashharuki
88. koki-develop
(Koki Sato)		 3388 Avatar for koki-develop
89. kazupon
(kazuya kawaguchi)		 3385 Avatar for kazupon
90. yug1224
(Yuji Yamaguchi)		 3374 Avatar for yug1224
91. hymkor
(HAYAMA Kaoru)		 3355 Avatar for hymkor
92. harupy
(Harutaka Kawamura)		 3349 Avatar for harupy
93. ianlewis
(Ian Lewis)		 3326 Avatar for ianlewis
94. yasulab
(Yohei Yasukawa)		 3265 Avatar for yasulab
95. Sakura520222
(车厘子小樱)		 3265 Avatar for Sakura520222
96. SlashNephy
()		 3238 Avatar for SlashNephy
97. sevenc-nanashi
(Nanashi.)		 3174 Avatar for sevenc-nanashi
98. komagata
(Masaki Komagata)		 3170 Avatar for komagata
99. tkoyama010
(Tetsuo Koyama)		 3165 Avatar for tkoyama010
100. suzuki-shunsuke
(Shunsuke Suzuki)		 3126 Avatar for suzuki-shunsuke
101. sapphi-red
(翠)		 3121 Avatar for sapphi-red
102. john-rocky
(Daisuke Majima (MLBoy))		 3119 Avatar for john-rocky
103. NishiOwO
(Nishi)		 3102 Avatar for NishiOwO
104. tmori
(Takashi Mori)		 3097 Avatar for tmori
105. yohasebe
(Yoichiro Hasebe)		 3064 Avatar for yohasebe
106. sotarok
(Sotaro Karasawa)		 3062 Avatar for sotarok
107. hakuturu583
(Masaya Kataoka)		 3051 Avatar for hakuturu583
108. yuki-yano
(Yuki Yano)		 3044 Avatar for yuki-yano
109. bobbens
(Edgar Simo-Serra)		 3023 Avatar for bobbens
110. toyoshim
(Takashi Toyoshima)		 2979 Avatar for toyoshim
111. bee-san
(Autumn (Bee))		 2962 Avatar for bee-san
112. MH4GF
(Hirotaka Miyagi)		 2949 Avatar for MH4GF
113. m-mizutani
(Masayoshi Mizutani)		 2930 Avatar for m-mizutani
114. shimbaco
(Shimba, Koji)		 2929 Avatar for shimbaco
115. sasagawa888
(kenichi sasagawa)		 2884 Avatar for sasagawa888
116. rigaya
(rigaya)		 2882 Avatar for rigaya
117. 1024jp
(1024jp)		 2798 Avatar for 1024jp
118. satoharuto961-dev
(Sato Haruto)		 2794 Avatar for satoharuto961-dev
119. nehemiaharchives
(Hokuto Joel Ide)		 2775 Avatar for nehemiaharchives
120. lambdalisue
(Λlisue)		 2774 Avatar for lambdalisue
121. seriaati
(seria)		 2766 Avatar for seriaati
122. take-cheeze
(Takeshi Watanabe)		 2734 Avatar for take-cheeze
123. masatoi
(Satoshi Imai)		 2664 Avatar for masatoi
124. t-hamano
(Aki Hamano)		 2652 Avatar for t-hamano
125. kitao
(Takashi Kitao)		 2636 Avatar for kitao
126. keijiro
(Keijiro Takahashi)		 2631 Avatar for keijiro
127. Jannchie
(Jianqi Pan)		 2624 Avatar for Jannchie
128. akirak
(Akira Komamura)		 2605 Avatar for akirak
129. hajimehoshi
(Hajime Hoshi)		 2605 Avatar for hajimehoshi
130. sigma7863
(Sigma)		 2536 Avatar for sigma7863
131. zapabob
(峯岸 亮)		 2516 Avatar for zapabob
132. skanehira
(skanehira)		 2505 Avatar for skanehira
133. ksoichiro
(Soichiro Kashima)		 2498 Avatar for ksoichiro
134. atsushieno
(Atsushi Eno)		 2496 Avatar for atsushieno
135. aviatesk
(Shuhei Kadowaki)		 2471 Avatar for aviatesk
136. walf443
(Keiji, Yoshimi)		 2415 Avatar for walf443
137. aiya000
(aiya000)		 2407 Avatar for aiya000
138. fox0430
(Shuu)		 2349 Avatar for fox0430
139. hfu
(Hidenori)		 2344 Avatar for hfu
140. onevcat
(Wei Wang)		 2335 Avatar for onevcat
141. hasumikin
(HASUMI Hitoshi)		 2311 Avatar for hasumikin
142. tokoik
(Kohe Tokoi)		 2279 Avatar for tokoik
143. yohamta0
(Yota Hamada)		 2274 Avatar for yohamta0
144. hi-ogawa
(Hiroshi Ogawa)		 2272 Avatar for hi-ogawa
145. terasakisatoshi
(Satoshi Terasaki)		 2266 Avatar for terasakisatoshi
146. ra1nyxin
()		 2255 Avatar for ra1nyxin
147. nateberkopec
(Nate Berkopec)		 2241 Avatar for nateberkopec
148. taishikato
(Taishi)		 2226 Avatar for taishikato
149. kishikawakatsumi
(Kishikawa Katsumi)		 2225 Avatar for kishikawakatsumi
150. znz
(Kazuhiro NISHIYAMA)		 2210 Avatar for znz
151. Saqoosha
(Saqoosha)		 2209 Avatar for Saqoosha
152. egisatoshi
(Satoshi Egi)		 2195 Avatar for egisatoshi
153. koron
(MURAOKA Taro)		 2173 Avatar for koron
154. tatsuhiro-t
(Tatsuhiro Tsujikawa)		 2162 Avatar for tatsuhiro-t
155. gkjohnson
(Garrett Johnson)		 2149 Avatar for gkjohnson
156. t3tra-dev
(t3tra)		 2132 Avatar for t3tra-dev
157. SethRobinson
(Seth Robinson)		 2103 Avatar for SethRobinson
158. peppy
(Dean Herbert)		 2100 Avatar for peppy
159. okunokentaro
(OKUNOKENTARO)		 2080 Avatar for okunokentaro
160. anatawa12
(anatawa12)		 2079 Avatar for anatawa12
161. nercone-dev
(nercone)		 2066 Avatar for nercone-dev
162. kubosho
(KUBOTA Shōta)		 2059 Avatar for kubosho
163. enliven17
(cankat)		 2052 Avatar for enliven17
164. AkihiroSuda
(Akihiro Suda)		 2042 Avatar for AkihiroSuda
165. Hiroshiba
(Hiroshiba)		 2011 Avatar for Hiroshiba
166. shibukawa
(Yoshiki Shibukawa)		 2008 Avatar for shibukawa
167. kawarimidoll
(カワリミ人形)		 2003 Avatar for kawarimidoll
168. bouzuya
(bouzuya)		 1994 Avatar for bouzuya
169. atztogo
(Atsushi Togo)		 1970 Avatar for atztogo
170. AdingApkgg
(Asuna)		 1960 Avatar for AdingApkgg
171. unasuke
(Yusuke Nakamura)		 1952 Avatar for unasuke
172. bmf-san
(Kenta Takeuchi)		 1941 Avatar for bmf-san
173. motemen
(Hironao OTSUBO)		 1932 Avatar for motemen
174. cybergarage
(Satoshi Konno)		 1913 Avatar for cybergarage
175. JohnTitor
(Yuki Okushi)		 1910 Avatar for JohnTitor
176. kexi
(Kei Nakayama)		 1903 Avatar for kexi
177. Banou26
(Banou)		 1883 Avatar for Banou26
178. koxudaxi
(Koudai Aono)		 1882 Avatar for koxudaxi
179. ryotarai
(Ryota Arai)		 1868 Avatar for ryotarai
180. boxp
(Keitaro Takeuchi)		 1867 Avatar for boxp
181. tyoshikawa1106
(Taiki Yoshikawa)		 1835 Avatar for tyoshikawa1106
182. konn
(Hiromi Ishii)		 1834 Avatar for konn
183. yutkat
(Yuta Katayama)		 1832 Avatar for yutkat
184. vrtmrz
(vorotamoroz)		 1825 Avatar for vrtmrz
185. mpyw
(mpyw)		 1817 Avatar for mpyw
186. tadashi-aikawa
(Tadashi Aikawa)		 1816 Avatar for tadashi-aikawa
187. kazunori279
(Kaz Sato)		 1797 Avatar for kazunori279
188. RobertTLange
(Robert Tjarko Lange)		 1782 Avatar for RobertTLange
189. shyouhei
(卜部昌平)		 1781 Avatar for shyouhei
190. linyows
(Tomohisa Oda)		 1774 Avatar for linyows
191. iebb
(ieb)		 1765 Avatar for iebb
192. cpojer
(Christoph Nakazawa)		 1763 Avatar for cpojer
193. whitphx
(Yuichiro Tachibana (Tsuchiya))		 1751 Avatar for whitphx
194. yuichkun
(Yuichi Yogo)		 1732 Avatar for yuichkun
195. nuitsjp
(Atsushi Nakamura)		 1729 Avatar for nuitsjp
196. koic
(Koichi ITO)		 1718 Avatar for koic
197. ukonpower
(ukonpower)		 1714 Avatar for ukonpower
198. f0reachARR
(ぐるぐる)		 1693 Avatar for f0reachARR
199. jsakamoto
()		 1691 Avatar for jsakamoto
200. smallkirby
(smallkirby)		 1680 Avatar for smallkirby
201. nwtgck
(Ryo Ota)		 1679 Avatar for nwtgck
202. Narazaka
(Narazaka)		 1677 Avatar for Narazaka
203. niku
(KITAMURA Daisuke)		 1668 Avatar for niku
204. kt3k
(Yoshiya Hinosawa)		 1653 Avatar for kt3k
205. pw56
(Ryu)		 1651 Avatar for pw56
206. sorairolake
(Shun Sakai)		 1624 Avatar for sorairolake
207. sideshowbarker
()		 1620 Avatar for sideshowbarker
208. ynqa
()		 1619 Avatar for ynqa
209. coliff
(Christian Oliff)		 1611 Avatar for coliff
210. fetus-hina
(AIZAWA Hina)		 1607 Avatar for fetus-hina
211. m96-chan
(Yusuke Harada)		 1604 Avatar for m96-chan
212. kou
(Sutou Kouhei)		 1603 Avatar for kou
213. norbusan
(Norbert Preining)		 1597 Avatar for norbusan
214. seratch
(Kazuhiro Sera)		 1596 Avatar for seratch
215. TimOliver
(Tim Oliver)		 1572 Avatar for TimOliver
216. yoshoku
(Atsushi Tatsuma)		 1559 Avatar for yoshoku
217. elzup
(elzup)		 1550 Avatar for elzup
218. sorah
(Sorah Fukumori)		 1540 Avatar for sorah
219. koji
(koji)		 1540 Avatar for koji
220. Watson1978
(Shizuo Fujita)		 1538 Avatar for Watson1978
221. Songmu
(Masayuki Matsuki)		 1536 Avatar for Songmu
222. Shougo
(Shougo)		 1534 Avatar for Shougo
223. nobu
(Nobuyoshi Nakada)		 1519 Avatar for nobu
224. waylandzhang
(WAYLAND ZHANG)		 1513 Avatar for waylandzhang
225. mayocream
(Mayo Takanashi)		 1511 Avatar for mayocream
226. taisukef
(Taisuke Fukuno)		 1506 Avatar for taisukef
227. inokawa
()		 1499 Avatar for inokawa
228. eitsupi
()		 1494 Avatar for eitsupi
229. kazuho
(Kazuho Oku)		 1492 Avatar for kazuho
230. nwiizo
(nwiizo)		 1481 Avatar for nwiizo
231. ykzts
(Yamagishi Kazutoshi)		 1446 Avatar for ykzts
232. mika-f
(MOCHIZUKI Kanon)		 1434 Avatar for mika-f
233. lepture
(Hsiaoming Yang)		 1425 Avatar for lepture
234. machida
(machida)		 1410 Avatar for machida
235. mosuka
(Minoru OSUKA)		 1408 Avatar for mosuka
236. XiaomingX
(Y11)		 1401 Avatar for XiaomingX
237. rob0pup
(Robin)		 1400 Avatar for rob0pup
238. udzura
(Kondo Uchio)		 1394 Avatar for udzura
239. haya14busa
(haya14busa)		 1390 Avatar for haya14busa
240. pocke
(Masataka Pocke Kuwabara)		 1382 Avatar for pocke
241. kazeburo
(Masahiro Nagano)		 1382 Avatar for kazeburo
242. Comamoca
(Comamoca)		 1376 Avatar for Comamoca
243. babarot
(Masaki ISHIYAMA)		 1375 Avatar for babarot
244. yuwata
(Yu Watanabe)		 1373 Avatar for yuwata
245. shinh
(Shinichiro Hamaji)		 1372 Avatar for shinh
246. privatenumber
(Hiroki Osame)		 1363 Avatar for privatenumber
247. vraestoren
(huok)		 1356 Avatar for vraestoren
248. kyamagu
(Kota Yamaguchi)		 1354 Avatar for kyamagu
249. rui314
(Rui Ueyama)		 1353 Avatar for rui314
250. cho45
(Satoh, Hiroh)		 1352 Avatar for cho45
251. fygar256
(Taisuke Maekawa)		 1337 Avatar for fygar256
252. sivchari
(Takuma Shibuya)		 1334 Avatar for sivchari
253. touyou
(Fujii Yosuke)		 1328 Avatar for touyou
254. Kanahiro
(Kanahiro Iguchi)		 1324 Avatar for Kanahiro
255. tatsuyafujisaki
(Tatsuya Fujisaki)		 1322 Avatar for tatsuyafujisaki
256. mopemope
(Yutaka Matsubara)		 1321 Avatar for mopemope

Organizations

Rank Organization Members
1. ruby 8
2. vim-jp 7
3. epicgames 6
4. asakusarb 6
5. perl-users-jp 5
6. ruby-no-kai 5
7. oss-gate 4
8. ukigumo 4
9. hiki 4
10. scalajp 4