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 2026-09-22 10:37:03 +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 contributions for each user. There are 142436 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_public/USERNAME.svg)](https://user-badge.committers.top/japan_public/USERNAME)
For organizations, you need to use a slightly different markup: 
[![committers.top badge](https://org-badge.committers.top/japan_public/ORGNAME.svg)](https://org-badge.committers.top/japan_public/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)		 41293 Avatar for MagicalTux
2. refirst11
()		 35488 Avatar for refirst11
3. tokuhirom
(Tokuhiro Matsuno)		 29612 Avatar for tokuhirom
4. rsasaki0109
(Ryohei Sasaki)		 28975 Avatar for rsasaki0109
5. mizchi
(Kotaro Chikuba)		 24999 Avatar for mizchi
6. ubugeeei
(ubugeeei)		 21770 Avatar for ubugeeei
7. j5ik2o
(Junichi Kato)		 18990 Avatar for j5ik2o
8. yuiseki
(yuiseki)		 17647 Avatar for yuiseki
9. fumiya-kume
(kuu(Fumiya Kume))		 17428 Avatar for fumiya-kume
10. kurone-kito
(Kuroné Kito (黒音キト))		 16855 Avatar for kurone-kito
11. houko
(Evan)		 15958 Avatar for houko
12. syoyo
(Syoyo Fujita)		 14642 Avatar for syoyo
13. mizzy
(Gosuke Miyashita)		 13373 Avatar for mizzy
14. zonuexe
(USAMI Kenta)		 13148 Avatar for zonuexe
15. lhl
(Leonard)		 13047 Avatar for lhl
16. unhappychoice
(Yuji Ueki)		 12735 Avatar for unhappychoice
17. lestrrat
(lestrrat)		 12355 Avatar for lestrrat
18. shogo82148
(ICHINOSE Shogo)		 11413 Avatar for shogo82148
19. kawasima
(Yoshitaka Kawashima)		 10679 Avatar for kawasima
20. sile
(Takeru Ohta)		 10622 Avatar for sile
21. bannzai
(bannzai)		 10411 Avatar for bannzai
22. yanorei32
(Ray Yano | あねてあ)		 9705 Avatar for yanorei32
23. ykzts
(Yamagishi Kazutoshi)		 9420 Avatar for ykzts
24. hsbt
(Hiroshi SHIBATA)		 9285 Avatar for hsbt
25. xuwei-k
(kenji yoshida)		 9129 Avatar for xuwei-k
26. koriym
(Akihito Koriyama)		 9097 Avatar for koriym
27. miyako
(Keisuke Miyako)		 9081 Avatar for miyako
28. tekezo
(Takayama Fumihiko)		 8940 Avatar for tekezo
29. matz
(Yukihiro "Matz" Matsumoto)		 8834 Avatar for matz
30. ryota-murakami
(Ryota Murakami)		 8731 Avatar for ryota-murakami
31. zero-0002
(Zero Dev)		 8631 Avatar for zero-0002
32. 1amageek
(1amageek)		 8582 Avatar for 1amageek
33. ko1
(Koichi Sasada)		 8253 Avatar for ko1
34. take-cheeze
(Takeshi Watanabe)		 8224 Avatar for take-cheeze
35. taiki-e
(Taiki Endo)		 7881 Avatar for taiki-e
36. sue445
(Go Sueyoshi)		 7836 Avatar for sue445
37. mattn
(mattn)		 7812 Avatar for mattn
38. kmizu
(Kota Mizushima)		 7757 Avatar for kmizu
39. winebarrel
(Genki Sugawara)		 7562 Avatar for winebarrel
40. YumNumm
(Ryotaro Onoue)		 7548 Avatar for YumNumm
41. k1LoW
(Ken’ichiro Oyama)		 7481 Avatar for k1LoW
42. manman4
(manman4)		 7358 Avatar for manman4
43. sksat
(sksat)		 7305 Avatar for sksat
44. guitarrapc
(Ikiru Yoshizaki)		 7143 Avatar for guitarrapc
45. takumi-sato0209
(Takumi Sato)		 6968 Avatar for takumi-sato0209
46. wkentaro
(Kentaro Wada)		 6899 Avatar for wkentaro
47. EdamAme-x
(EdamAmex)		 6775 Avatar for EdamAme-x
48. hakatashi
(Koki Takahashi)		 6618 Avatar for hakatashi
49. gfx
(FUJI Goro)		 6598 Avatar for gfx
50. tk0miya
(Takeshi KOMIYA)		 6446 Avatar for tk0miya
51. making
(Toshiaki Maki)		 6443 Avatar for making
52. tkoyama010
(Tetsuo Koyama)		 6285 Avatar for tkoyama010
53. takahashim
(Masayoshi Takahashi)		 6048 Avatar for takahashim
54. akiomik
(Akiomi KAMAKURA)		 6003 Avatar for akiomik
55. sapphi-red
(翠)		 5997 Avatar for sapphi-red
56. yuki-kimoto
(Yuki Kimoto)		 5965 Avatar for yuki-kimoto
57. mumoshu
(Yusuke Kuoka)		 5955 Avatar for mumoshu
58. ursm
(Keita Urashima)		 5937 Avatar for ursm
59. harupy
(Harutaka Kawamura)		 5930 Avatar for harupy
60. zchee
(Koichi Shiraishi)		 5845 Avatar for zchee
61. nateberkopec
(Nate Berkopec)		 5757 Avatar for nateberkopec
62. suzuki-shunsuke
(Shunsuke Suzuki)		 5651 Avatar for suzuki-shunsuke
63. azu
(azu)		 5595 Avatar for azu
64. wajahat-ali-mir-dev
(Wajahat Ali Mir)		 5583 Avatar for wajahat-ali-mir-dev
65. dalance
(Naoya Hatta)		 5359 Avatar for dalance
66. bee-san
(Autumn (Bee))		 5353 Avatar for bee-san
67. ianlewis
(Ian Lewis)		 5257 Avatar for ianlewis
68. hi-ogawa
(Hiroshi Ogawa)		 5066 Avatar for hi-ogawa
69. 2bbb
(2bit)		 5027 Avatar for 2bbb
70. AkihiroSuda
(Akihiro Suda)		 5005 Avatar for AkihiroSuda
71. PINTO0309
(Katsuya Hyodo)		 4894 Avatar for PINTO0309
72. sxzz
(Kevin Deng)		 4817 Avatar for sxzz
73. yamadashy
(Kazuki Yamada)		 4807 Avatar for yamadashy
74. europanite
(europanite)		 4681 Avatar for europanite
75. himkt
(himkt)		 4551 Avatar for himkt
76. fujiwara
(FUJIWARA Shunichiro)		 4409 Avatar for fujiwara
77. SebastienGllmt
(Sebastien Guillemot)		 4397 Avatar for SebastienGllmt
78. john-rocky
(Daisuke Majima (MLBoy))		 4396 Avatar for john-rocky
79. komagata
(Masaki Komagata)		 4354 Avatar for komagata
80. kazupon
(kazuya kawaguchi)		 4298 Avatar for kazupon
81. tmori
(Takashi Mori)		 4253 Avatar for tmori
82. Watson1978
(Shizuo Fujita)		 4229 Avatar for Watson1978
83. kou
(Sutou Kouhei)		 4198 Avatar for kou
84. hakuturu583
(Masaya Kataoka)		 4192 Avatar for hakuturu583
85. amatsuda
(Akira Matsuda)		 4032 Avatar for amatsuda
86. halogenandtoast
(Matthew Mongeau)		 4021 Avatar for halogenandtoast
87. mashharuki
(Haruki Kondo)		 3982 Avatar for mashharuki
88. sevenc-nanashi
(Nanashi.)		 3837 Avatar for sevenc-nanashi
89. terasakisatoshi
(Satoshi Terasaki)		 3809 Avatar for terasakisatoshi
90. shimbaco
(Shimba, Koji)		 3805 Avatar for shimbaco
91. koxudaxi
(Koudai Aono)		 3714 Avatar for koxudaxi
92. mpyw
(mpyw)		 3694 Avatar for mpyw
93. lambdalisue
(Λlisue)		 3692 Avatar for lambdalisue
94. toastkidjp
(Toast kid)		 3691 Avatar for toastkidjp
95. seratch
(Kazuhiro Sera)		 3650 Avatar for seratch
96. enliven17
(cankat)		 3572 Avatar for enliven17
97. aviatesk
(Shuhei Kadowaki)		 3549 Avatar for aviatesk
98. JohnTitor
(Yuki Okushi)		 3504 Avatar for JohnTitor
99. yug1224
(Yuji Yamaguchi)		 3471 Avatar for yug1224
100. tyoshikawa1106
(Taiki Yoshikawa)		 3453 Avatar for tyoshikawa1106
101. hajimehoshi
(Hajime Hoshi)		 3450 Avatar for hajimehoshi
102. sotarok
(Sotaro Karasawa)		 3376 Avatar for sotarok
103. onevcat
(Wei Wang)		 3355 Avatar for onevcat
104. yasulab
(Yohei Yasukawa)		 3337 Avatar for yasulab
105. Hiroshiba
(Hiroshiba)		 3210 Avatar for Hiroshiba
106. tatsuhiro-t
(Tatsuhiro Tsujikawa)		 3185 Avatar for tatsuhiro-t
107. znz
(Kazuhiro NISHIYAMA)		 3163 Avatar for znz
108. sigma7863
(Sigma)		 3151 Avatar for sigma7863
109. mosuka
(Minoru OSUKA)		 3082 Avatar for mosuka
110. walf443
(Keiji, Yoshimi)		 3077 Avatar for walf443
111. Saqoosha
(Saqoosha)		 3077 Avatar for Saqoosha
112. Jannchie
(Jianqi Pan)		 3067 Avatar for Jannchie
113. skanehira
(skanehira)		 3027 Avatar for skanehira
114. zapabob
(峯岸 亮)		 3005 Avatar for zapabob
115. eitsupi
()		 2984 Avatar for eitsupi
116. bobbens
(Edgar Simo-Serra)		 2919 Avatar for bobbens
117. rigaya
(rigaya)		 2882 Avatar for rigaya
118. 1024jp
(1024jp)		 2876 Avatar for 1024jp
119. kishikawakatsumi
(Kishikawa Katsumi)		 2843 Avatar for kishikawakatsumi
120. shibukawa
(Yoshiki Shibukawa)		 2836 Avatar for shibukawa
121. gkjohnson
(Garrett Johnson)		 2835 Avatar for gkjohnson
122. leaysgur
(Yuji Sugiura)		 2810 Avatar for leaysgur
123. peppy
(Dean Herbert)		 2804 Avatar for peppy
124. kexi
(Kei Nakayama)		 2795 Avatar for kexi
125. tokoik
(Kohe Tokoi)		 2793 Avatar for tokoik
126. yuwata
(Yu Watanabe)		 2777 Avatar for yuwata
127. anatawa12
(anatawa12)		 2761 Avatar for anatawa12
128. sorairolake
(Shun Sakai)		 2752 Avatar for sorairolake
129. bmf-san
(Kenta Takeuchi)		 2740 Avatar for bmf-san
130. keijiro
(Keijiro Takahashi)		 2707 Avatar for keijiro
131. ksoichiro
(Soichiro Kashima)		 2707 Avatar for ksoichiro
132. koic
(Koichi ITO)		 2675 Avatar for koic
133. atsushieno
(Atsushi Eno)		 2653 Avatar for atsushieno
134. kitao
(Takashi Kitao)		 2646 Avatar for kitao
135. koron
(MURAOKA Taro)		 2585 Avatar for koron
136. koji
(koji)		 2584 Avatar for koji
137. whitphx
(Yuichiro Tachibana (Tsuchiya))		 2573 Avatar for whitphx
138. yutkat
(Yuta Katayama)		 2573 Avatar for yutkat
139. atztogo
(Atsushi Togo)		 2552 Avatar for atztogo
140. AdingApkgg
(Asuna)		 2539 Avatar for AdingApkgg
141. trust-delta
(trust-delta)		 2486 Avatar for trust-delta
142. nobu
(Nobuyoshi Nakada)		 2449 Avatar for nobu
143. cocoa-xu
(Cocoa)		 2444 Avatar for cocoa-xu
144. cpojer
(Christoph Nakazawa)		 2401 Avatar for cpojer
145. fujitatomoya
(Tomoya Fujita)		 2395 Avatar for fujitatomoya
146. t3tra-dev
(t3tra)		 2394 Avatar for t3tra-dev
147. yusukebe
(Yusuke Wada)		 2390 Avatar for yusukebe
148. sideshowbarker
()		 2388 Avatar for sideshowbarker
149. vrtmrz
(vorotamoroz)		 2387 Avatar for vrtmrz
150. takano32
(TAKANO Mitsuhiro)		 2332 Avatar for takano32
151. SethRobinson
(Seth Robinson)		 2308 Avatar for SethRobinson
152. Songmu
(Masayuki Matsuki)		 2261 Avatar for Songmu
153. shyouhei
(卜部昌平)		 2223 Avatar for shyouhei
154. kyamagu
(Kota Yamaguchi)		 2211 Avatar for kyamagu
155. rui314
(Rui Ueyama)		 2210 Avatar for rui314
156. konn
(Hiromi Ishii)		 2203 Avatar for konn
157. Naturalclar
(Jesse Katsumata)		 2183 Avatar for Naturalclar
158. kazunori279
(Kaz Sato)		 2164 Avatar for kazunori279
159. ymotongpoo
(Yoshi Yamaguchi)		 2160 Avatar for ymotongpoo
160. kt3k
(Yoshiya Hinosawa)		 2157 Avatar for kt3k
161. XiaomingX
(Y11)		 2156 Avatar for XiaomingX
162. yahonda
(Yasuo Honda)		 2114 Avatar for yahonda
163. knu
(Akinori Musha)		 2062 Avatar for knu
164. masuidrive
(Yuichiro MASUI)		 2062 Avatar for masuidrive
165. bokuweb
(bokuweb)		 2061 Avatar for bokuweb
166. coliff
(Christian Oliff)		 2051 Avatar for coliff
167. iebb
(ieb)		 2039 Avatar for iebb
168. inokawa
()		 2026 Avatar for inokawa
169. hardfist
(hardfist)		 2021 Avatar for hardfist
170. shinobi-coder701
(Shinobi Coder)		 2016 Avatar for shinobi-coder701
171. RobertTLange
(Robert Tjarko Lange)		 2013 Avatar for RobertTLange
172. ryotarai
(Ryota Arai)		 2007 Avatar for ryotarai
173. mayocream
(Mayo Takanashi)		 2007 Avatar for mayocream
174. c-bata
(c-bata)		 2001 Avatar for c-bata
175. norbusan
(Norbert Preining)		 1990 Avatar for norbusan
176. pocke
(Masataka Pocke Kuwabara)		 1951 Avatar for pocke
177. hashrock
(hashrock)		 1946 Avatar for hashrock
178. kazeburo
(Masahiro Nagano)		 1929 Avatar for kazeburo
179. TimOliver
(Tim Oliver)		 1881 Avatar for TimOliver
180. kazuho
(Kazuho Oku)		 1868 Avatar for kazuho
181. privatenumber
(Hiroki Osame)		 1843 Avatar for privatenumber
182. dai
(dai)		 1837 Avatar for dai
183. touyou
(Fujii Yosuke)		 1833 Avatar for touyou
184. nwtgck
(Ryo Ota)		 1830 Avatar for nwtgck
185. udzura
(Kondo Uchio)		 1829 Avatar for udzura
186. syuilo
(syuilo)		 1818 Avatar for syuilo
187. wadackel
(tsuyoshi wada)		 1792 Avatar for wadackel
188. otiai10
(Hiromu OCHIAI)		 1789 Avatar for otiai10
189. lacolaco
(Suguru Inatomi)		 1788 Avatar for lacolaco
190. jsakamoto
()		 1770 Avatar for jsakamoto
191. qwexvf
(Maruchan)		 1757 Avatar for qwexvf
192. sorah
(Sorah Fukumori)		 1755 Avatar for sorah
193. dai-shi
(Daishi Kato)		 1732 Avatar for dai-shi
194. ota-meshi
(Yosuke Ota)		 1732 Avatar for ota-meshi
195. grace2riku
()		 1717 Avatar for grace2riku
196. mika-f
(MOCHIZUKI Kanon)		 1689 Avatar for mika-f
197. yutannihilation
(Hiroaki Yutani)		 1685 Avatar for yutannihilation
198. babarot
(Masaki ISHIYAMA)		 1673 Avatar for babarot
199. nwiizo
(nwiizo)		 1655 Avatar for nwiizo
200. waylandzhang
(WAYLAND ZHANG)		 1649 Avatar for waylandzhang
201. drasticactions
(Tim Miller)		 1647 Avatar for drasticactions
202. ktoso
(Konrad `ktoso` Malawski)		 1631 Avatar for ktoso
203. melpon
(melpon)		 1615 Avatar for melpon
204. deepak1556
(Robo)		 1613 Avatar for deepak1556
205. motemen
(Hironao OTSUBO)		 1604 Avatar for motemen
206. Comamoca
(Comamoca)		 1580 Avatar for Comamoca
207. lepture
(Hsiaoming Yang)		 1579 Avatar for lepture
208. Shougo
(Shougo)		 1575 Avatar for Shougo
209. anuraaga
(Anuraag (Rag) Agrawal)		 1574 Avatar for anuraaga
210. noborus
(Noboru Saito)		 1572 Avatar for noborus
211. fujita
(FUJITA Tomonori)		 1571 Avatar for fujita
212. eltociear
(Ikko Eltociear Ashimine)		 1560 Avatar for eltociear
213. shinh
(Shinichiro Hamaji)		 1558 Avatar for shinh
214. luadebug
(Saikari)		 1551 Avatar for luadebug
215. domenic
(Domenic Denicola)		 1537 Avatar for domenic
216. yshrsmz
(Yasuhiro SHIMIZU)		 1534 Avatar for yshrsmz
217. taisukef
(Taisuke Fukuno)		 1516 Avatar for taisukef
218. kazu-yamamoto
(Kazu Yamamoto)		 1513 Avatar for kazu-yamamoto
219. NicolasDorier
(Nicolas Dorier)		 1510 Avatar for NicolasDorier
220. takahirom
(Takahiro Menju)		 1501 Avatar for takahirom
221. neka-nat
(k-tanaka)		 1500 Avatar for neka-nat
222. dsh0416
(Delton Ding)		 1486 Avatar for dsh0416
223. cosmo0920
(Hiroshi Hatake)		 1481 Avatar for cosmo0920
224. takahirox
(Takahiro)		 1480 Avatar for takahirox
225. sakai1250
(sakai taigo)		 1478 Avatar for sakai1250
226. vraestoren
(huok)		 1455 Avatar for vraestoren
227. fygar256
(Taisuke Maekawa)		 1451 Avatar for fygar256
228. hewigovens
(Tao Xu)		 1443 Avatar for hewigovens
229. shimat
(shimat)		 1435 Avatar for shimat
230. hotchpotch
(Yuichi Tateno (secon))		 1415 Avatar for hotchpotch
231. syohex
(Shohei YOSHIDA)		 1412 Avatar for syohex
232. peterzhu2118
(Peter Zhu)		 1407 Avatar for peterzhu2118
233. int128
(Hidetake Iwata)		 1399 Avatar for int128
234. rob0pup
(Robin)		 1394 Avatar for rob0pup
235. craftzdog
(Takuya Matsuyama)		 1392 Avatar for craftzdog
236. cho45
(Satoh, Hiroh)		 1391 Avatar for cho45
237. runceel
(Kazuki Ota)		 1386 Avatar for runceel
238. yude
(Takehiro Ogura)		 1385 Avatar for yude
239. ThaddeusJiang
(天海 原 / AMAMI Hara)		 1372 Avatar for ThaddeusJiang
240. soutaro
(Soutaro Matsumoto)		 1371 Avatar for soutaro
241. faithandbrave
(Akira Takahashi)		 1370 Avatar for faithandbrave
242. meganetaaan
(Shinya Ishikawa)		 1360 Avatar for meganetaaan
243. aoi1026
(AOI)		 1356 Avatar for aoi1026
244. piroor
(YUKI "Piro" Hiroshi)		 1352 Avatar for piroor
245. hatoo
()		 1348 Avatar for hatoo
246. tatsuyafujisaki
(Tatsuya Fujisaki)		 1347 Avatar for tatsuyafujisaki
247. p-x9
()		 1345 Avatar for p-x9
248. miurahr
(Hiroshi Miura)		 1321 Avatar for miurahr
249. viasnake
(snake)		 1315 Avatar for viasnake
250. moriyoshi
(Moriyoshi Koizumi)		 1292 Avatar for moriyoshi
251. miya0001
(Takayuki Miyauchi)		 1292 Avatar for miya0001
252. nuskey8
(Yusuke Nakada)		 1290 Avatar for nuskey8
253. uhyo
(uhyo)		 1287 Avatar for uhyo
254. shibayan
(Tatsuro Shibamura)		 1287 Avatar for shibayan
255. kaityo256
(Hiroshi Watanabe)		 1278 Avatar for kaityo256
256. mopemope
(Yutaka Matsubara)		 1276 Avatar for mopemope

Organizations

Rank Organization Members
1. ruby 12
2. asakusarb 7
3. perl-users-jp 5
4. ruby-no-kai 5
5. vim-jp 5
6. epicgames 4
7. sinsai 4
8. web-platform-tests 4
9. hiki 4
10. oss-gate 4