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 2026-10-14 23:06:48 +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 143309 total users in the region and you need at least 198 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)		 46989 Avatar for MagicalTux
2. refirst11
(Sou Watanabe)		 39037 Avatar for refirst11
3. tokuhirom
(Tokuhiro Matsuno)		 34453 Avatar for tokuhirom
4. rsasaki0109
(Ryohei Sasaki)		 33523 Avatar for rsasaki0109
5. ubugeeei
(ubugeeei)		 26986 Avatar for ubugeeei
6. mizchi
(Kotaro Chikuba)		 26275 Avatar for mizchi
7. houko
(小莫)		 25264 Avatar for houko
8. kurone-kito
(Kuroné Kito (黒音キト))		 22301 Avatar for kurone-kito
9. fumiya-kume
(kuu(Fumiya Kume))		 20299 Avatar for fumiya-kume
10. j5ik2o
(Junichi Kato)		 19777 Avatar for j5ik2o
11. zonuexe
(USAMI Kenta)		 17377 Avatar for zonuexe
12. yuiseki
(yuiseki)		 17003 Avatar for yuiseki
13. lestrrat
(lestrrat)		 16163 Avatar for lestrrat
14. syoyo
(Syoyo Fujita)		 14921 Avatar for syoyo
15. mizzy
(Gosuke Miyashita)		 13853 Avatar for mizzy
16. kawasima
(Yoshitaka Kawashima)		 13698 Avatar for kawasima
17. lhl
(Leonard)		 13442 Avatar for lhl
18. shogo82148
(ICHINOSE Shogo)		 13263 Avatar for shogo82148
19. matz
(Yukihiro "Matz" Matsumoto)		 13218 Avatar for matz
20. unhappychoice
(Yuji Ueki)		 12838 Avatar for unhappychoice
21. bannzai
(bannzai)		 12583 Avatar for bannzai
22. ykzts
(Yamagishi Kazutoshi)		 12357 Avatar for ykzts
23. take-cheeze
(Takeshi Watanabe)		 11740 Avatar for take-cheeze
24. 1amageek
(1amageek)		 11280 Avatar for 1amageek
25. hsbt
(Hiroshi SHIBATA)		 10164 Avatar for hsbt
26. sile
(Takeru Ohta)		 10133 Avatar for sile
27. miyako
(Keisuke Miyako)		 9767 Avatar for miyako
28. tekezo
(Takayama Fumihiko)		 9681 Avatar for tekezo
29. making
(Toshiaki Maki)		 9619 Avatar for making
30. koriym
(Akihito Koriyama)		 9223 Avatar for koriym
31. zchee
(Koichi Shiraishi)		 9221 Avatar for zchee
32. xuwei-k
(kenji yoshida)		 9067 Avatar for xuwei-k
33. ryota-murakami
(Ryota Murakami)		 8954 Avatar for ryota-murakami
34. k1LoW
(Ken’ichiro Oyama)		 8935 Avatar for k1LoW
35. zero-0002
(Zero Dev)		 8856 Avatar for zero-0002
36. SebastienGllmt
(Sebastien Guillemot)		 8755 Avatar for SebastienGllmt
37. ko1
(Koichi Sasada)		 8655 Avatar for ko1
38. winebarrel
(Genki Sugawara)		 8573 Avatar for winebarrel
39. mattn
(mattn)		 8136 Avatar for mattn
40. kmizu
(Kota Mizushima)		 7904 Avatar for kmizu
41. gfx
(FUJI Goro)		 7898 Avatar for gfx
42. YumNumm
(Ryotaro Onoue)		 7829 Avatar for YumNumm
43. sue445
(Go Sueyoshi)		 7747 Avatar for sue445
44. takahashim
(Masayoshi Takahashi)		 7742 Avatar for takahashim
45. taiki-e
(Taiki Endo)		 7714 Avatar for taiki-e
46. sksat
(sksat)		 7588 Avatar for sksat
47. otnc
(otoneko.)		 7386 Avatar for otnc
48. suzuki-shunsuke
(Shunsuke Suzuki)		 7364 Avatar for suzuki-shunsuke
49. hakatashi
(Koki Takahashi)		 7244 Avatar for hakatashi
50. guitarrapc
(Ikiru Yoshizaki)		 7092 Avatar for guitarrapc
51. manman4
(manman4)		 7087 Avatar for manman4
52. wkentaro
(Kentaro Wada)		 7032 Avatar for wkentaro
53. EdamAme-x
(EdamAmex)		 6869 Avatar for EdamAme-x
54. tk0miya
(Takeshi KOMIYA)		 6543 Avatar for tk0miya
55. bee-san
(Autumn (Bee))		 6540 Avatar for bee-san
56. tkoyama010
(Tetsuo Koyama)		 6436 Avatar for tkoyama010
57. nateberkopec
(Nate Berkopec)		 6272 Avatar for nateberkopec
58. onevcat
(Wei Wang)		 6223 Avatar for onevcat
59. ursm
(Keita Urashima)		 6214 Avatar for ursm
60. akiomik
(Akiomi KAMAKURA)		 6195 Avatar for akiomik
61. harupy
(Harutaka Kawamura)		 5982 Avatar for harupy
62. mumoshu
(Yusuke Kuoka)		 5912 Avatar for mumoshu
63. sapphi-red
(翠)		 5904 Avatar for sapphi-red
64. yuki-kimoto
(Yuki Kimoto)		 5756 Avatar for yuki-kimoto
65. wajahat-ali-mir-dev
(Wajahat Ali Mir)		 5582 Avatar for wajahat-ali-mir-dev
66. john-rocky
(Daisuke Majima (MLBoy))		 5547 Avatar for john-rocky
67. azu
(azu)		 5520 Avatar for azu
68. dalance
(Naoya Hatta)		 5511 Avatar for dalance
69. hi-ogawa
(Hiroshi Ogawa)		 5489 Avatar for hi-ogawa
70. hakuturu583
(Masaya Kataoka)		 5284 Avatar for hakuturu583
71. enliven17
(cankat)		 5175 Avatar for enliven17
72. 2bbb
(2bit)		 5087 Avatar for 2bbb
73. tmori
(Takashi Mori)		 5083 Avatar for tmori
74. mpyw
(mpyw)		 5035 Avatar for mpyw
75. takano32
(TAKANO Mitsuhiro)		 4976 Avatar for takano32
76. AkihiroSuda
(Akihiro Suda)		 4974 Avatar for AkihiroSuda
77. rui314
(Rui Ueyama)		 4891 Avatar for rui314
78. PINTO0309
(Katsuya Hyodo)		 4890 Avatar for PINTO0309
79. Watson1978
(Shizuo Fujita)		 4812 Avatar for Watson1978
80. yamadashy
(Kazuki Yamada)		 4767 Avatar for yamadashy
81. himkt
(himkt)		 4766 Avatar for himkt
82. ianlewis
(Ian Lewis)		 4759 Avatar for ianlewis
83. kazupon
(kazuya kawaguchi)		 4756 Avatar for kazupon
84. sxzz
(Kevin Deng)		 4724 Avatar for sxzz
85. lambdalisue
(Λlisue)		 4626 Avatar for lambdalisue
86. kou
(Sutou Kouhei)		 4617 Avatar for kou
87. koxudaxi
(Koudai Aono)		 4558 Avatar for koxudaxi
88. halogenandtoast
(Matthew Mongeau)		 4536 Avatar for halogenandtoast
89. amatsuda
(Akira Matsuda)		 4535 Avatar for amatsuda
90. komagata
(Masaki Komagata)		 4525 Avatar for komagata
91. fujiwara
(FUJIWARA Shunichiro)		 4432 Avatar for fujiwara
92. europanite
(europanite)		 4330 Avatar for europanite
93. LumaKernel
(Luma)		 4264 Avatar for LumaKernel
94. mashharuki
(Haruki Kondo)		 4011 Avatar for mashharuki
95. shimbaco
(Shimba, Koji)		 3986 Avatar for shimbaco
96. aviatesk
(Shuhei Kadowaki)		 3985 Avatar for aviatesk
97. antfu
(Anthony Fu)		 3946 Avatar for antfu
98. sevenc-nanashi
(Nanashi.)		 3921 Avatar for sevenc-nanashi
99. tatsuhiro-t
(Tatsuhiro Tsujikawa)		 3890 Avatar for tatsuhiro-t
100. gkjohnson
(Garrett Johnson)		 3803 Avatar for gkjohnson
101. hajimehoshi
(Hajime Hoshi)		 3765 Avatar for hajimehoshi
102. Jannchie
(Jianqi Pan)		 3735 Avatar for Jannchie
103. toastkidjp
(Toast kid)		 3701 Avatar for toastkidjp
104. mosuka
(Minoru OSUKA)		 3693 Avatar for mosuka
105. yasulab
(Yohei Yasukawa)		 3621 Avatar for yasulab
106. Saqoosha
(Saqoosha)		 3559 Avatar for Saqoosha
107. tyoshikawa1106
(Taiki Yoshikawa)		 3544 Avatar for tyoshikawa1106
108. seratch
(Kazuhiro Sera)		 3531 Avatar for seratch
109. JohnTitor
(Yuki Okushi)		 3484 Avatar for JohnTitor
110. znz
(Kazuhiro NISHIYAMA)		 3484 Avatar for znz
111. yug1224
(Yuji Yamaguchi)		 3478 Avatar for yug1224
112. sotarok
(Sotaro Karasawa)		 3452 Avatar for sotarok
113. Hiroshiba
(Hiroshiba)		 3340 Avatar for Hiroshiba
114. babarot
(Masaki ISHIYAMA)		 3316 Avatar for babarot
115. eitsupi
()		 3262 Avatar for eitsupi
116. shibukawa
(Yoshiki Shibukawa)		 3228 Avatar for shibukawa
117. walf443
(Keiji, Yoshimi)		 3211 Avatar for walf443
118. koic
(Koichi ITO)		 3137 Avatar for koic
119. skanehira
(skanehira)		 3088 Avatar for skanehira
120. kexi
(Kei Nakayama)		 3078 Avatar for kexi
121. rigaya
(rigaya)		 3049 Avatar for rigaya
122. leaysgur
(Yuji Sugiura)		 3025 Avatar for leaysgur
123. sigma7863
(Sigma)		 2998 Avatar for sigma7863
124. zapabob
(峯岸 亮)		 2997 Avatar for zapabob
125. atztogo
(Atsushi Togo)		 2962 Avatar for atztogo
126. tenzen-y
(Yuki Iwai)		 2910 Avatar for tenzen-y
127. ksoichiro
(Soichiro Kashima)		 2885 Avatar for ksoichiro
128. anatawa12
(anatawa12)		 2881 Avatar for anatawa12
129. kyamagu
(Kota Yamaguchi)		 2870 Avatar for kyamagu
130. 1024jp
(1024jp)		 2870 Avatar for 1024jp
131. sorairolake
(Shun Sakai)		 2863 Avatar for sorairolake
132. tokoik
(Kohe Tokoi)		 2860 Avatar for tokoik
133. atsushieno
(Atsushi Eno)		 2857 Avatar for atsushieno
134. cocoa-xu
(Cocoa)		 2844 Avatar for cocoa-xu
135. Songmu
(Masayuki Matsuki)		 2839 Avatar for Songmu
136. bobbens
(Edgar Simo-Serra)		 2814 Avatar for bobbens
137. yuwata
(Yu Watanabe)		 2798 Avatar for yuwata
138. kishikawakatsumi
(Kishikawa Katsumi)		 2797 Avatar for kishikawakatsumi
139. SethRobinson
(Seth Robinson)		 2789 Avatar for SethRobinson
140. AdingApkgg
(Asuna)		 2781 Avatar for AdingApkgg
141. peppy
(Dean Herbert)		 2718 Avatar for peppy
142. Naturalclar
(Jesse Katsumata)		 2704 Avatar for Naturalclar
143. knu
(Akinori Musha)		 2700 Avatar for knu
144. yahonda
(Yasuo Honda)		 2690 Avatar for yahonda
145. mika-f
(MOCHIZUKI Kanon)		 2684 Avatar for mika-f
146. keijiro
(Keijiro Takahashi)		 2669 Avatar for keijiro
147. yutkat
(Yuta Katayama)		 2668 Avatar for yutkat
148. whitphx
(Yuichiro Tachibana (Tsuchiya))		 2668 Avatar for whitphx
149. bmf-san
(Kenta Takeuchi)		 2654 Avatar for bmf-san
150. t3tra-dev
(t3tra)		 2636 Avatar for t3tra-dev
151. ymotongpoo
(Yoshi Yamaguchi)		 2624 Avatar for ymotongpoo
152. takahirox
(Takahiro)		 2613 Avatar for takahirox
153. koron
(MURAOKA Taro)		 2607 Avatar for koron
154. bokuweb
(bokuweb)		 2586 Avatar for bokuweb
155. ra1nyxin
()		 2586 Avatar for ra1nyxin
156. vrtmrz
(vorotamoroz)		 2580 Avatar for vrtmrz
157. iebb
(ieb)		 2578 Avatar for iebb
158. koji
(koji)		 2574 Avatar for koji
159. sideshowbarker
()		 2538 Avatar for sideshowbarker
160. yusukebe
(Yusuke Wada)		 2486 Avatar for yusukebe
161. trust-delta
(trust-delta)		 2463 Avatar for trust-delta
162. fujitatomoya
(Tomoya Fujita)		 2463 Avatar for fujitatomoya
163. cpojer
(Christoph Nakazawa)		 2463 Avatar for cpojer
164. nobu
(Nobuyoshi Nakada)		 2445 Avatar for nobu
165. syuilo
(syuilo)		 2392 Avatar for syuilo
166. kazu-yamamoto
(Kazu Yamamoto)		 2379 Avatar for kazu-yamamoto
167. konn
(Hiromi Ishii)		 2321 Avatar for konn
168. rosylilly
(Sho Kusano)		 2304 Avatar for rosylilly
169. masuidrive
(Yuichiro MASUI)		 2279 Avatar for masuidrive
170. coliff
(Christian Oliff)		 2232 Avatar for coliff
171. shyouhei
(卜部昌平)		 2216 Avatar for shyouhei
172. kazunori279
(Kaz Sato)		 2187 Avatar for kazunori279
173. sorah
(Sorah Fukumori)		 2148 Avatar for sorah
174. kt3k
(Yoshiya Hinosawa)		 2116 Avatar for kt3k
175. XiaomingX
(Y11)		 2112 Avatar for XiaomingX
176. hashrock
(hashrock)		 2100 Avatar for hashrock
177. touyou
(Fujii Yosuke)		 2092 Avatar for touyou
178. inokawa
()		 2090 Avatar for inokawa
179. kazeburo
(Masahiro Nagano)		 2076 Avatar for kazeburo
180. nwtgck
(Ryo Ota)		 2075 Avatar for nwtgck
181. mayocream
(Mayo Takanashi)		 2062 Avatar for mayocream
182. c-bata
(c-bata)		 2025 Avatar for c-bata
183. TimOliver
(Tim Oliver)		 2017 Avatar for TimOliver
184. ryotarai
(Ryota Arai)		 2010 Avatar for ryotarai
185. RobertTLange
(Robert Tjarko Lange)		 2010 Avatar for RobertTLange
186. kazuho
(Kazuho Oku)		 2008 Avatar for kazuho
187. pocke
(Masataka Pocke Kuwabara)		 1978 Avatar for pocke
188. udzura
(Kondo Uchio)		 1970 Avatar for udzura
189. norbusan
(Norbert Preining)		 1964 Avatar for norbusan
190. otiai10
(Hiromu OCHIAI)		 1959 Avatar for otiai10
191. lacolaco
(Suguru Inatomi)		 1954 Avatar for lacolaco
192. privatenumber
(Hiroki Osame)		 1926 Avatar for privatenumber
193. wadackel
(tsuyoshi wada)		 1882 Avatar for wadackel
194. dai
(dai)		 1867 Avatar for dai
195. neka-nat
(k-tanaka)		 1853 Avatar for neka-nat
196. dsh0416
(Delton Ding)		 1830 Avatar for dsh0416
197. jsakamoto
()		 1807 Avatar for jsakamoto
198. dai-shi
(Daishi Kato)		 1791 Avatar for dai-shi
199. qwexvf
(Maruchan)		 1779 Avatar for qwexvf
200. NicolasDorier
(Nicolas Dorier)		 1779 Avatar for NicolasDorier
201. grace2riku
()		 1775 Avatar for grace2riku
202. drasticactions
(Tim Miller)		 1761 Avatar for drasticactions
203. hewigovens
(Tao Xu)		 1757 Avatar for hewigovens
204. melpon
(melpon)		 1746 Avatar for melpon
205. anuraaga
(Anuraag (Rag) Agrawal)		 1705 Avatar for anuraaga
206. ota-meshi
(Yosuke Ota)		 1700 Avatar for ota-meshi
207. yutannihilation
(Hiroaki Yutani)		 1690 Avatar for yutannihilation
208. nwiizo
(nwiizo)		 1677 Avatar for nwiizo
209. lightsound
(しまぶー)		 1668 Avatar for lightsound
210. ktoso
(Konrad `ktoso` Malawski)		 1665 Avatar for ktoso
211. deepak1556
(Robo)		 1661 Avatar for deepak1556
212. meganetaaan
(Shinya Ishikawa)		 1631 Avatar for meganetaaan
213. hotchpotch
(Yuichi Tateno (secon))		 1630 Avatar for hotchpotch
214. mesqueeb
(Luca Ban)		 1617 Avatar for mesqueeb
215. fujita
(FUJITA Tomonori)		 1616 Avatar for fujita
216. fygar256
(Taisuke Maekawa)		 1606 Avatar for fygar256
217. Shougo
(Shougo)		 1606 Avatar for Shougo
218. Comamoca
(Comamoca)		 1594 Avatar for Comamoca
219. takahirom
(Takahiro Menju)		 1589 Avatar for takahirom
220. domenic
(Domenic Denicola)		 1584 Avatar for domenic
221. waylandzhang
(WAYLAND ZHANG)		 1579 Avatar for waylandzhang
222. shimat
(shimat)		 1568 Avatar for shimat
223. yshrsmz
(Yasuhiro SHIMIZU)		 1567 Avatar for yshrsmz
224. moriyoshi
(Moriyoshi Koizumi)		 1564 Avatar for moriyoshi
225. noborus
(Noboru Saito)		 1550 Avatar for noborus
226. yuuki
(Yuuki TSUBOUCHI)		 1549 Avatar for yuuki
227. lepture
(Hsiaoming Yang)		 1548 Avatar for lepture
228. peterzhu2118
(Peter Zhu)		 1527 Avatar for peterzhu2118
229. eltociear
(Ikko Eltociear Ashimine)		 1517 Avatar for eltociear
230. taisukef
(Taisuke Fukuno)		 1500 Avatar for taisukef
231. craftzdog
(Takuya Matsuyama)		 1498 Avatar for craftzdog
232. bea4dev
(bea4dev)		 1495 Avatar for bea4dev
233. sakai1250
(sakai taigo)		 1486 Avatar for sakai1250
234. cosmo0920
(Hiroshi Hatake)		 1469 Avatar for cosmo0920
235. runceel
(Kazuki Ota)		 1462 Avatar for runceel
236. vraestoren
(huok)		 1454 Avatar for vraestoren
237. int128
(Hidetake Iwata)		 1450 Avatar for int128
238. nyuichi
(Yuichi Nishiwaki)		 1441 Avatar for nyuichi
239. DayuanJiang
(Dayuan Jiang)		 1434 Avatar for DayuanJiang
240. p-x9
()		 1428 Avatar for p-x9
241. faithandbrave
(Akira Takahashi)		 1423 Avatar for faithandbrave
242. syohex
(Shohei YOSHIDA)		 1421 Avatar for syohex
243. moznion
(moznion)		 1408 Avatar for moznion
244. ThaddeusJiang
(天海 原 / AMAMI Hara)		 1404 Avatar for ThaddeusJiang
245. yude
(Takehiro Ogura)		 1397 Avatar for yude
246. soutaro
(Soutaro Matsumoto)		 1394 Avatar for soutaro
247. hatoo
()		 1389 Avatar for hatoo
248. mopemope
(Yutaka Matsubara)		 1388 Avatar for mopemope
249. cho45
(Satoh, Hiroh)		 1388 Avatar for cho45
250. piroor
(YUKI "Piro" Hiroshi)		 1377 Avatar for piroor
251. uhyo
(uhyo)		 1352 Avatar for uhyo
252. rob0pup
(Robin)		 1343 Avatar for rob0pup
253. zcbenz
(Cheng)		 1328 Avatar for zcbenz
254. luadebug
(Saikari)		 1323 Avatar for luadebug
255. SachaG
(Sacha Greif)		 1322 Avatar for SachaG
256. syumai
(syumai)		 1305 Avatar for syumai

Organizations

Rank Organization Members
1. ruby 12
2. asakusarb 7
3. perl-users-jp 5
4. ukigumo 5
5. ruby-no-kai 5
6. vuejs 5
7. vim-jp 5
8. java-ja 5
9. conda-forge 4
10. oss-gate 4