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 2026-09-17 07:04:20 +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 142057 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)		 39877 Avatar for MagicalTux
2. refirst11
()		 35085 Avatar for refirst11
3. tokuhirom
(Tokuhiro Matsuno)		 29053 Avatar for tokuhirom
4. rsasaki0109
(Ryohei Sasaki)		 28750 Avatar for rsasaki0109
5. mizchi
(Kotaro Chikuba)		 24435 Avatar for mizchi
6. ubugeeei
(ubugeeei)		 21230 Avatar for ubugeeei
7. j5ik2o
(Junichi Kato)		 18951 Avatar for j5ik2o
8. yuiseki
(yuiseki)		 18035 Avatar for yuiseki
9. fumiya-kume
(kuu(Fumiya Kume))		 17145 Avatar for fumiya-kume
10. kurone-kito
(Kuroné Kito (黒音キト))		 15977 Avatar for kurone-kito
11. syoyo
(Syoyo Fujita)		 14628 Avatar for syoyo
12. mizzy
(Gosuke Miyashita)		 13168 Avatar for mizzy
13. houko
(Evan)		 12983 Avatar for houko
14. unhappychoice
(Yuji Ueki)		 12842 Avatar for unhappychoice
15. zonuexe
(USAMI Kenta)		 12657 Avatar for zonuexe
16. lhl
(Leonard)		 12612 Avatar for lhl
17. lestrrat
(lestrrat)		 12135 Avatar for lestrrat
18. shogo82148
(ICHINOSE Shogo)		 10910 Avatar for shogo82148
19. sile
(Takeru Ohta)		 10523 Avatar for sile
20. kawasima
(Yoshitaka Kawashima)		 10518 Avatar for kawasima
21. bannzai
(bannzai)		 10266 Avatar for bannzai
22. yanorei32
(Ray Yano | あねてあ)		 9784 Avatar for yanorei32
23. xuwei-k
(kenji yoshida)		 9304 Avatar for xuwei-k
24. miyako
(Keisuke Miyako)		 9257 Avatar for miyako
25. hsbt
(Hiroshi SHIBATA)		 9220 Avatar for hsbt
26. tekezo
(Takayama Fumihiko)		 9122 Avatar for tekezo
27. ykzts
(Yamagishi Kazutoshi)		 8782 Avatar for ykzts
28. ryota-murakami
(Ryota Murakami)		 8763 Avatar for ryota-murakami
29. koriym
(Akihito Koriyama)		 8753 Avatar for koriym
30. matz
(Yukihiro "Matz" Matsumoto)		 8563 Avatar for matz
31. zero-0002
(Zero Dev)		 8510 Avatar for zero-0002
32. 1amageek
(1amageek)		 8279 Avatar for 1amageek
33. ko1
(Koichi Sasada)		 8162 Avatar for ko1
34. taiki-e
(Taiki Endo)		 7990 Avatar for taiki-e
35. sue445
(Go Sueyoshi)		 7852 Avatar for sue445
36. mattn
(mattn)		 7563 Avatar for mattn
37. manman4
(manman4)		 7539 Avatar for manman4
38. k1LoW
(Ken’ichiro Oyama)		 7461 Avatar for k1LoW
39. YumNumm
(Ryotaro Onoue)		 7369 Avatar for YumNumm
40. take-cheeze
(Takeshi Watanabe)		 7244 Avatar for take-cheeze
41. winebarrel
(Genki Sugawara)		 7190 Avatar for winebarrel
42. guitarrapc
(Ikiru Yoshizaki)		 7091 Avatar for guitarrapc
43. sksat
(sksat)		 7042 Avatar for sksat
44. wkentaro
(Kentaro Wada)		 6785 Avatar for wkentaro
45. EdamAme-x
(EdamAmex)		 6744 Avatar for EdamAme-x
46. kmizu
(Kota Mizushima)		 6596 Avatar for kmizu
47. hakatashi
(Koki Takahashi)		 6591 Avatar for hakatashi
48. gfx
(FUJI Goro)		 6332 Avatar for gfx
49. tkoyama010
(Tetsuo Koyama)		 6248 Avatar for tkoyama010
50. tk0miya
(Takeshi KOMIYA)		 6242 Avatar for tk0miya
51. sapphi-red
(翠)		 6137 Avatar for sapphi-red
52. harupy
(Harutaka Kawamura)		 6091 Avatar for harupy
53. yuki-kimoto
(Yuki Kimoto)		 6032 Avatar for yuki-kimoto
54. making
(Toshiaki Maki)		 5999 Avatar for making
55. akiomik
(Akiomi KAMAKURA)		 5987 Avatar for akiomik
56. mumoshu
(Yusuke Kuoka)		 5971 Avatar for mumoshu
57. ursm
(Keita Urashima)		 5927 Avatar for ursm
58. suzuki-shunsuke
(Shunsuke Suzuki)		 5804 Avatar for suzuki-shunsuke
59. nateberkopec
(Nate Berkopec)		 5803 Avatar for nateberkopec
60. azu
(azu)		 5651 Avatar for azu
61. wajahat-ali-mir-dev
(Wajahat Ali Mir)		 5585 Avatar for wajahat-ali-mir-dev
62. takahashim
(Masayoshi Takahashi)		 5515 Avatar for takahashim
63. zchee
(Koichi Shiraishi)		 5424 Avatar for zchee
64. dalance
(Naoya Hatta)		 5356 Avatar for dalance
65. ianlewis
(Ian Lewis)		 5280 Avatar for ianlewis
66. 2bbb
(2bit)		 5026 Avatar for 2bbb
67. bee-san
(Autumn (Bee))		 4998 Avatar for bee-san
68. hi-ogawa
(Hiroshi Ogawa)		 4995 Avatar for hi-ogawa
69. AkihiroSuda
(Akihiro Suda)		 4975 Avatar for AkihiroSuda
70. PINTO0309
(Katsuya Hyodo)		 4899 Avatar for PINTO0309
71. europanite
(europanite)		 4791 Avatar for europanite
72. sxzz
(Kevin Deng)		 4756 Avatar for sxzz
73. yamadashy
(Kazuki Yamada)		 4745 Avatar for yamadashy
74. himkt
(himkt)		 4547 Avatar for himkt
75. fujiwara
(FUJIWARA Shunichiro)		 4397 Avatar for fujiwara
76. komagata
(Masaki Komagata)		 4344 Avatar for komagata
77. john-rocky
(Daisuke Majima (MLBoy))		 4288 Avatar for john-rocky
78. SebastienGllmt
(Sebastien Guillemot)		 4276 Avatar for SebastienGllmt
79. kou
(Sutou Kouhei)		 4151 Avatar for kou
80. kazupon
(kazuya kawaguchi)		 4133 Avatar for kazupon
81. tmori
(Takashi Mori)		 4124 Avatar for tmori
82. hakuturu583
(Masaya Kataoka)		 4107 Avatar for hakuturu583
83. Watson1978
(Shizuo Fujita)		 4084 Avatar for Watson1978
84. halogenandtoast
(Matthew Mongeau)		 4057 Avatar for halogenandtoast
85. amatsuda
(Akira Matsuda)		 4054 Avatar for amatsuda
86. mashharuki
(Haruki Kondo)		 3913 Avatar for mashharuki
87. sevenc-nanashi
(Nanashi.)		 3819 Avatar for sevenc-nanashi
88. shimbaco
(Shimba, Koji)		 3795 Avatar for shimbaco
89. toastkidjp
(Toast kid)		 3711 Avatar for toastkidjp
90. koxudaxi
(Koudai Aono)		 3696 Avatar for koxudaxi
91. lambdalisue
(Λlisue)		 3687 Avatar for lambdalisue
92. aviatesk
(Shuhei Kadowaki)		 3537 Avatar for aviatesk
93. seratch
(Kazuhiro Sera)		 3513 Avatar for seratch
94. JohnTitor
(Yuki Okushi)		 3498 Avatar for JohnTitor
95. yug1224
(Yuji Yamaguchi)		 3490 Avatar for yug1224
96. mpyw
(mpyw)		 3478 Avatar for mpyw
97. tyoshikawa1106
(Taiki Yoshikawa)		 3453 Avatar for tyoshikawa1106
98. hajimehoshi
(Hajime Hoshi)		 3436 Avatar for hajimehoshi
99. peppy
(Dean Herbert)		 3433 Avatar for peppy
100. onevcat
(Wei Wang)		 3352 Avatar for onevcat
101. sotarok
(Sotaro Karasawa)		 3317 Avatar for sotarok
102. yasulab
(Yohei Yasukawa)		 3308 Avatar for yasulab
103. tatsuhiro-t
(Tatsuhiro Tsujikawa)		 3239 Avatar for tatsuhiro-t
104. sigma7863
(Sigma)		 3169 Avatar for sigma7863
105. Hiroshiba
(Hiroshiba)		 3130 Avatar for Hiroshiba
106. znz
(Kazuhiro NISHIYAMA)		 3110 Avatar for znz
107. Jannchie
(Jianqi Pan)		 3037 Avatar for Jannchie
108. mosuka
(Minoru OSUKA)		 3032 Avatar for mosuka
109. Saqoosha
(Saqoosha)		 3029 Avatar for Saqoosha
110. zapabob
(峯岸 亮)		 3001 Avatar for zapabob
111. bobbens
(Edgar Simo-Serra)		 3000 Avatar for bobbens
112. enliven17
(cankat)		 2971 Avatar for enliven17
113. sorairolake
(Shun Sakai)		 2960 Avatar for sorairolake
114. skanehira
(skanehira)		 2938 Avatar for skanehira
115. walf443
(Keiji, Yoshimi)		 2936 Avatar for walf443
116. rigaya
(rigaya)		 2919 Avatar for rigaya
117. 1024jp
(1024jp)		 2896 Avatar for 1024jp
118. kishikawakatsumi
(Kishikawa Katsumi)		 2839 Avatar for kishikawakatsumi
119. yuwata
(Yu Watanabe)		 2838 Avatar for yuwata
120. gkjohnson
(Garrett Johnson)		 2825 Avatar for gkjohnson
121. leaysgur
(Yuji Sugiura)		 2805 Avatar for leaysgur
122. shibukawa
(Yoshiki Shibukawa)		 2790 Avatar for shibukawa
123. kexi
(Kei Nakayama)		 2784 Avatar for kexi
124. anatawa12
(anatawa12)		 2741 Avatar for anatawa12
125. tokoik
(Kohe Tokoi)		 2734 Avatar for tokoik
126. Anionix
(ᅟ᠎S⁢ho͏؜Tᅠakaᅟy⁣an︎aᅠg⁡i)		 2733 Avatar for Anionix
127. keijiro
(Keijiro Takahashi)		 2694 Avatar for keijiro
128. eitsupi
()		 2684 Avatar for eitsupi
129. bmf-san
(Kenta Takeuchi)		 2662 Avatar for bmf-san
130. ksoichiro
(Soichiro Kashima)		 2660 Avatar for ksoichiro
131. koic
(Koichi ITO)		 2651 Avatar for koic
132. kitao
(Takashi Kitao)		 2651 Avatar for kitao
133. atsushieno
(Atsushi Eno)		 2638 Avatar for atsushieno
134. koron
(MURAOKA Taro)		 2635 Avatar for koron
135. yutkat
(Yuta Katayama)		 2607 Avatar for yutkat
136. koji
(koji)		 2599 Avatar for koji
137. whitphx
(Yuichiro Tachibana (Tsuchiya))		 2575 Avatar for whitphx
138. atztogo
(Atsushi Togo)		 2556 Avatar for atztogo
139. trust-delta
(trust-delta)		 2469 Avatar for trust-delta
140. nobu
(Nobuyoshi Nakada)		 2454 Avatar for nobu
141. fujitatomoya
(Tomoya Fujita)		 2404 Avatar for fujitatomoya
142. t3tra-dev
(t3tra)		 2396 Avatar for t3tra-dev
143. cpojer
(Christoph Nakazawa)		 2391 Avatar for cpojer
144. sideshowbarker
()		 2384 Avatar for sideshowbarker
145. vrtmrz
(vorotamoroz)		 2368 Avatar for vrtmrz
146. cocoa-xu
(Cocoa)		 2358 Avatar for cocoa-xu
147. yusukebe
(Yusuke Wada)		 2356 Avatar for yusukebe
148. shyouhei
(卜部昌平)		 2280 Avatar for shyouhei
149. SethRobinson
(Seth Robinson)		 2252 Avatar for SethRobinson
150. miurahr
(Hiroshi Miura)		 2219 Avatar for miurahr
151. XiaomingX
(Y11)		 2199 Avatar for XiaomingX
152. konn
(Hiromi Ishii)		 2188 Avatar for konn
153. kazunori279
(Kaz Sato)		 2166 Avatar for kazunori279
154. Naturalclar
(Jesse Katsumata)		 2165 Avatar for Naturalclar
155. kt3k
(Yoshiya Hinosawa)		 2135 Avatar for kt3k
156. coliff
(Christian Oliff)		 2126 Avatar for coliff
157. yahonda
(Yasuo Honda)		 2092 Avatar for yahonda
158. kyamagu
(Kota Yamaguchi)		 2082 Avatar for kyamagu
159. ymotongpoo
(Yoshi Yamaguchi)		 2079 Avatar for ymotongpoo
160. hardfist
(hardfist)		 2044 Avatar for hardfist
161. inokawa
()		 2040 Avatar for inokawa
162. Songmu
(Masayuki Matsuki)		 2019 Avatar for Songmu
163. RobertTLange
(Robert Tjarko Lange)		 2016 Avatar for RobertTLange
164. ryotarai
(Ryota Arai)		 2008 Avatar for ryotarai
165. takano32
(TAKANO Mitsuhiro)		 2006 Avatar for takano32
166. c-bata
(c-bata)		 2003 Avatar for c-bata
167. mayocream
(Mayo Takanashi)		 1999 Avatar for mayocream
168. norbusan
(Norbert Preining)		 1992 Avatar for norbusan
169. knu
(Akinori Musha)		 1983 Avatar for knu
170. shinh
(Shinichiro Hamaji)		 1979 Avatar for shinh
171. masuidrive
(Yuichiro MASUI)		 1967 Avatar for masuidrive
172. shinobi-coder701
(Shinobi Coder)		 1949 Avatar for shinobi-coder701
173. pocke
(Masataka Pocke Kuwabara)		 1931 Avatar for pocke
174. iebb
(ieb)		 1928 Avatar for iebb
175. kazuho
(Kazuho Oku)		 1906 Avatar for kazuho
176. TimOliver
(Tim Oliver)		 1877 Avatar for TimOliver
177. motemen
(Hironao OTSUBO)		 1848 Avatar for motemen
178. kazeburo
(Masahiro Nagano)		 1836 Avatar for kazeburo
179. touyou
(Fujii Yosuke)		 1823 Avatar for touyou
180. privatenumber
(Hiroki Osame)		 1816 Avatar for privatenumber
181. lacolaco
(Suguru Inatomi)		 1805 Avatar for lacolaco
182. dai
(dai)		 1799 Avatar for dai
183. jsakamoto
()		 1791 Avatar for jsakamoto
184. hashrock
(hashrock)		 1767 Avatar for hashrock
185. takumi-sato0209
(Takumi Sato)		 1766 Avatar for takumi-sato0209
186. ota-meshi
(Yosuke Ota)		 1756 Avatar for ota-meshi
187. udzura
(Kondo Uchio)		 1743 Avatar for udzura
188. rui314
(Rui Ueyama)		 1731 Avatar for rui314
189. dai-shi
(Daishi Kato)		 1714 Avatar for dai-shi
190. sorah
(Sorah Fukumori)		 1713 Avatar for sorah
191. grace2riku
()		 1711 Avatar for grace2riku
192. yutannihilation
(Hiroaki Yutani)		 1707 Avatar for yutannihilation
193. qwexvf
(Maruchan)		 1699 Avatar for qwexvf
194. waylandzhang
(WAYLAND ZHANG)		 1698 Avatar for waylandzhang
195. nwtgck
(Ryo Ota)		 1697 Avatar for nwtgck
196. bokuweb
(bokuweb)		 1674 Avatar for bokuweb
197. babarot
(Masaki ISHIYAMA)		 1673 Avatar for babarot
198. wadackel
(tsuyoshi wada)		 1672 Avatar for wadackel
199. ktoso
(Konrad `ktoso` Malawski)		 1644 Avatar for ktoso
200. nwiizo
(nwiizo)		 1636 Avatar for nwiizo
201. otiai10
(Hiromu OCHIAI)		 1625 Avatar for otiai10
202. yshrsmz
(Yasuhiro SHIMIZU)		 1604 Avatar for yshrsmz
203. Comamoca
(Comamoca)		 1603 Avatar for Comamoca
204. drasticactions
(Tim Miller)		 1602 Avatar for drasticactions
205. mika-f
(MOCHIZUKI Kanon)		 1601 Avatar for mika-f
206. lepture
(Hsiaoming Yang)		 1600 Avatar for lepture
207. melpon
(melpon)		 1597 Avatar for melpon
208. syuilo
(syuilo)		 1594 Avatar for syuilo
209. deepak1556
(Robo)		 1592 Avatar for deepak1556
210. noborus
(Noboru Saito)		 1579 Avatar for noborus
211. luadebug
(Saikari)		 1573 Avatar for luadebug
212. eltociear
(Ikko Eltociear Ashimine)		 1569 Avatar for eltociear
213. anuraaga
(Anuraag (Rag) Agrawal)		 1561 Avatar for anuraaga
214. Shougo
(Shougo)		 1551 Avatar for Shougo
215. haya14busa
(haya14busa)		 1539 Avatar for haya14busa
216. taisukef
(Taisuke Fukuno)		 1531 Avatar for taisukef
217. fujita
(FUJITA Tomonori)		 1518 Avatar for fujita
218. domenic
(Domenic Denicola)		 1495 Avatar for domenic
219. cosmo0920
(Hiroshi Hatake)		 1489 Avatar for cosmo0920
220. neka-nat
(k-tanaka)		 1477 Avatar for neka-nat
221. sakai1250
(sakai taigo)		 1463 Avatar for sakai1250
222. vraestoren
(huok)		 1455 Avatar for vraestoren
223. takahirom
(Takahiro Menju)		 1452 Avatar for takahirom
224. int128
(Hidetake Iwata)		 1437 Avatar for int128
225. yuuki
(Yuuki TSUBOUCHI)		 1429 Avatar for yuuki
226. shimat
(shimat)		 1426 Avatar for shimat
227. syohex
(Shohei YOSHIDA)		 1420 Avatar for syohex
228. fygar256
(Taisuke Maekawa)		 1416 Avatar for fygar256
229. dsh0416
(Delton Ding)		 1410 Avatar for dsh0416
230. rob0pup
(Robin)		 1408 Avatar for rob0pup
231. NicolasDorier
(Nicolas Dorier)		 1400 Avatar for NicolasDorier
232. hewigovens
(Tao Xu)		 1399 Avatar for hewigovens
233. craftzdog
(Takuya Matsuyama)		 1381 Avatar for craftzdog
234. soutaro
(Soutaro Matsumoto)		 1371 Avatar for soutaro
235. peterzhu2118
(Peter Zhu)		 1368 Avatar for peterzhu2118
236. faithandbrave
(Akira Takahashi)		 1365 Avatar for faithandbrave
237. hatoo
()		 1362 Avatar for hatoo
238. ThaddeusJiang
(天海 原 / AMAMI Hara)		 1357 Avatar for ThaddeusJiang
239. hotchpotch
(Yuichi Tateno (secon))		 1356 Avatar for hotchpotch
240. aoi1026
(AOI)		 1356 Avatar for aoi1026
241. runceel
(Kazuki Ota)		 1353 Avatar for runceel
242. tatsuyafujisaki
(Tatsuya Fujisaki)		 1345 Avatar for tatsuyafujisaki
243. yude
(Takehiro Ogura)		 1342 Avatar for yude
244. piroor
(YUKI "Piro" Hiroshi)		 1341 Avatar for piroor
245. p-x9
()		 1325 Avatar for p-x9
246. kaguya0107
(kaguya107)		 1321 Avatar for kaguya0107
247. moriyoshi
(Moriyoshi Koizumi)		 1309 Avatar for moriyoshi
248. shibayan
(Tatsuro Shibamura)		 1295 Avatar for shibayan
249. miya0001
(Takayuki Miyauchi)		 1288 Avatar for miya0001
250. rmackay9
(Randy Mackay)		 1288 Avatar for rmackay9
251. smoogipoo
(Dan Balasescu)		 1286 Avatar for smoogipoo
252. uhyo
(uhyo)		 1285 Avatar for uhyo
253. viasnake
(snake)		 1283 Avatar for viasnake
254. kaityo256
(Hiroshi Watanabe)		 1269 Avatar for kaityo256
255. nuskey8
(Yusuke Nakada)		 1265 Avatar for nuskey8
256. champierre
(Junya Ishihara)		 1259 Avatar for champierre

Organizations

Rank Organization Members
1. ruby 12
2. asakusarb 7
3. vim-jp 6
4. ruby-no-kai 5
5. web-platform-tests 4
6. scalajp 4
7. ranguba 4
8. hiki 4
9. conda-forge 4
10. epicgames 4