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 2026-08-16 04:33:42 +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 140651 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_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)		 35394 Avatar for MagicalTux
2. rsasaki0109
(Ryohei Sasaki)		 26932 Avatar for rsasaki0109
3. tokuhirom
(Tokuhiro Matsuno)		 23848 Avatar for tokuhirom
4. mizchi
(Kotaro Chikuba)		 20675 Avatar for mizchi
5. j5ik2o
(Junichi Kato)		 17800 Avatar for j5ik2o
6. yuiseki
(yuiseki)		 17742 Avatar for yuiseki
7. fumiya-kume
(kuu(Fumiya Kume))		 15174 Avatar for fumiya-kume
8. ubugeeei
(ubugeeei)		 14394 Avatar for ubugeeei
9. unhappychoice
(Yuji Ueki)		 13229 Avatar for unhappychoice
10. mizzy
(Gosuke Miyashita)		 13049 Avatar for mizzy
11. houko
(Evan)		 10716 Avatar for houko
12. kurone-kito
(Kuroné Kito (黒音キト))		 10540 Avatar for kurone-kito
13. sile
(Takeru Ohta)		 9852 Avatar for sile
14. xuwei-k
(kenji yoshida)		 9834 Avatar for xuwei-k
15. shogo82148
(ICHINOSE Shogo)		 9763 Avatar for shogo82148
16. syoyo
(Syoyo Fujita)		 9754 Avatar for syoyo
17. lestrrat
(lestrrat)		 9689 Avatar for lestrrat
18. yanorei32
(Ray Yano | あねてあ)		 9515 Avatar for yanorei32
19. zonuexe
(USAMI Kenta)		 9326 Avatar for zonuexe
20. tekezo
(Takayama Fumihiko)		 8884 Avatar for tekezo
21. lhl
(Leonard)		 8865 Avatar for lhl
22. koriym
(Akihito Koriyama)		 8752 Avatar for koriym
23. manman4
(manman4)		 8219 Avatar for manman4
24. taiki-e
(Taiki Endo)		 8153 Avatar for taiki-e
25. hsbt
(Hiroshi SHIBATA)		 8014 Avatar for hsbt
26. sue445
(Go Sueyoshi)		 7742 Avatar for sue445
27. miyako
(Keisuke Miyako)		 7707 Avatar for miyako
28. ryota-murakami
(Ryota Murakami)		 7677 Avatar for ryota-murakami
29. conao3
(Naoya Yamashita)		 7339 Avatar for conao3
30. matz
(Yukihiro "Matz" Matsumoto)		 7321 Avatar for matz
31. 1amageek
(1amageek)		 7285 Avatar for 1amageek
32. k1LoW
(Ken’ichiro Oyama)		 7171 Avatar for k1LoW
33. guitarrapc
(Ikiru Yoshizaki)		 7111 Avatar for guitarrapc
34. ko1
(Koichi Sasada)		 7036 Avatar for ko1
35. winebarrel
(Genki Sugawara)		 6662 Avatar for winebarrel
36. sapphi-red
(翠)		 6588 Avatar for sapphi-red
37. YumNumm
(Ryotaro Onoue)		 6556 Avatar for YumNumm
38. mattn
(mattn)		 6150 Avatar for mattn
39. azu
(azu)		 6150 Avatar for azu
40. yuki-kimoto
(Yuki Kimoto)		 6147 Avatar for yuki-kimoto
41. harupy
(Harutaka Kawamura)		 6084 Avatar for harupy
42. hakatashi
(Koki Takahashi)		 5951 Avatar for hakatashi
43. suzuki-shunsuke
(Shunsuke Suzuki)		 5806 Avatar for suzuki-shunsuke
44. tk0miya
(Takeshi KOMIYA)		 5791 Avatar for tk0miya
45. bannzai
(bannzai)		 5790 Avatar for bannzai
46. tkoyama010
(Tetsuo Koyama)		 5786 Avatar for tkoyama010
47. mumoshu
(Yusuke Kuoka)		 5535 Avatar for mumoshu
48. sksat
(sksat)		 5395 Avatar for sksat
49. nateberkopec
(Nate Berkopec)		 5384 Avatar for nateberkopec
50. ursm
(Keita Urashima)		 5381 Avatar for ursm
51. wkentaro
(Kentaro Wada)		 5352 Avatar for wkentaro
52. ianlewis
(Ian Lewis)		 5340 Avatar for ianlewis
53. EdamAme-x
(EdamAmex)		 5149 Avatar for EdamAme-x
54. gfx
(FUJI Goro)		 5132 Avatar for gfx
55. sxzz
(Kevin Deng)		 5124 Avatar for sxzz
56. ykzts
(Yamagishi Kazutoshi)		 4969 Avatar for ykzts
57. PINTO0309
(Katsuya Hyodo)		 4951 Avatar for PINTO0309
58. europanite
(europanite)		 4924 Avatar for europanite
59. hi-ogawa
(Hiroshi Ogawa)		 4903 Avatar for hi-ogawa
60. shinh
(Shinichiro Hamaji)		 4897 Avatar for shinh
61. dalance
(Naoya Hatta)		 4854 Avatar for dalance
62. AkihiroSuda
(Akihiro Suda)		 4792 Avatar for AkihiroSuda
63. kmizu
(Kota Mizushima)		 4764 Avatar for kmizu
64. yamadashy
(Kazuki Yamada)		 4741 Avatar for yamadashy
65. kawasima
(Yoshitaka Kawashima)		 4651 Avatar for kawasima
66. takahashim
(Masayoshi Takahashi)		 4611 Avatar for takahashim
67. fujiwara
(FUJIWARA Shunichiro)		 4493 Avatar for fujiwara
68. 2bbb
(2bit)		 4485 Avatar for 2bbb
69. komagata
(Masaki Komagata)		 4238 Avatar for komagata
70. kou
(Sutou Kouhei)		 4236 Avatar for kou
71. himkt
(himkt)		 4123 Avatar for himkt
72. amatsuda
(Akira Matsuda)		 4062 Avatar for amatsuda
73. making
(Toshiaki Maki)		 3963 Avatar for making
74. hakuturu583
(Masaya Kataoka)		 3922 Avatar for hakuturu583
75. sevenc-nanashi
(Nanashi.)		 3901 Avatar for sevenc-nanashi
76. bee-san
(Autumn (Bee))		 3894 Avatar for bee-san
77. peppy
(Dean Herbert)		 3859 Avatar for peppy
78. tmori
(Takashi Mori)		 3744 Avatar for tmori
79. toastkidjp
(Toast kid)		 3740 Avatar for toastkidjp
80. yasulab
(Yohei Yasukawa)		 3736 Avatar for yasulab
81. halogenandtoast
(Matthew Mongeau)		 3728 Avatar for halogenandtoast
82. mashharuki
(Haruki Kondo)		 3671 Avatar for mashharuki
83. yug1224
(Yuji Yamaguchi)		 3515 Avatar for yug1224
84. Watson1978
(Shizuo Fujita)		 3514 Avatar for Watson1978
85. terasakisatoshi
(Satoshi Terasaki)		 3500 Avatar for terasakisatoshi
86. zchee
(Koichi Shiraishi)		 3470 Avatar for zchee
87. shimbaco
(Shimba, Koji)		 3442 Avatar for shimbaco
88. seratch
(Kazuhiro Sera)		 3429 Avatar for seratch
89. JohnTitor
(Yuki Okushi)		 3388 Avatar for JohnTitor
90. kazupon
(kazuya kawaguchi)		 3359 Avatar for kazupon
91. john-rocky
(Daisuke Majima)		 3355 Avatar for john-rocky
92. lambdalisue
(Λlisue)		 3352 Avatar for lambdalisue
93. bobbens
(Edgar Simo-Serra)		 3345 Avatar for bobbens
94. koxudaxi
(Koudai Aono)		 3292 Avatar for koxudaxi
95. aviatesk
(Shuhei Kadowaki)		 3267 Avatar for aviatesk
96. onevcat
(Wei Wang)		 3179 Avatar for onevcat
97. tatsuhiro-t
(Tatsuhiro Tsujikawa)		 3061 Avatar for tatsuhiro-t
98. rigaya
(rigaya)		 2986 Avatar for rigaya
99. tyoshikawa1106
(Taiki Yoshikawa)		 2976 Avatar for tyoshikawa1106
100. take-cheeze
(Takeshi Watanabe)		 2952 Avatar for take-cheeze
101. sorairolake
(Shun Sakai)		 2933 Avatar for sorairolake
102. hajimehoshi
(Hajime Hoshi)		 2919 Avatar for hajimehoshi
103. 1024jp
(1024jp)		 2911 Avatar for 1024jp
104. yuwata
(Yu Watanabe)		 2907 Avatar for yuwata
105. mpyw
(mpyw)		 2883 Avatar for mpyw
106. sotarok
(Sotaro Karasawa)		 2857 Avatar for sotarok
107. kishikawakatsumi
(Kishikawa Katsumi)		 2824 Avatar for kishikawakatsumi
108. bmf-san
(Kenta Takeuchi)		 2786 Avatar for bmf-san
109. koji
(koji)		 2773 Avatar for koji
110. keijiro
(Keijiro Takahashi)		 2762 Avatar for keijiro
111. sigma7863
(Sigma)		 2759 Avatar for sigma7863
112. gkjohnson
(Garrett Johnson)		 2746 Avatar for gkjohnson
113. yutkat
(Yuta Katayama)		 2738 Avatar for yutkat
114. mosuka
(Minoru OSUKA)		 2709 Avatar for mosuka
115. Hiroshiba
(Hiroshiba)		 2702 Avatar for Hiroshiba
116. anatawa12
(anatawa12)		 2687 Avatar for anatawa12
117. Jannchie
(Jianqi Pan)		 2685 Avatar for Jannchie
118. whitphx
(Yuichiro Tachibana (Tsuchiya))		 2665 Avatar for whitphx
119. kitao
(Takashi Kitao)		 2662 Avatar for kitao
120. walf443
(Keiji, Yoshimi)		 2619 Avatar for walf443
121. leaysgur
(Yuji Sugiura)		 2616 Avatar for leaysgur
122. koic
(Koichi ITO)		 2600 Avatar for koic
123. enliven17
(cankat)		 2585 Avatar for enliven17
124. skanehira
(skanehira)		 2576 Avatar for skanehira
125. kexi
(Kei Nakayama)		 2563 Avatar for kexi
126. atsushieno
(Atsushi Eno)		 2529 Avatar for atsushieno
127. SebastienGllmt
(Sebastien Guillemot)		 2510 Avatar for SebastienGllmt
128. koron
(MURAOKA Taro)		 2480 Avatar for koron
129. eitsupi
()		 2476 Avatar for eitsupi
130. ksoichiro
(Soichiro Kashima)		 2442 Avatar for ksoichiro
131. atztogo
(Atsushi Togo)		 2421 Avatar for atztogo
132. nobu
(Nobuyoshi Nakada)		 2371 Avatar for nobu
133. Saqoosha
(Saqoosha)		 2367 Avatar for Saqoosha
134. coliff
(Christian Oliff)		 2361 Avatar for coliff
135. cpojer
(Christoph Nakazawa)		 2271 Avatar for cpojer
136. miurahr
(Hiroshi Miura)		 2271 Avatar for miurahr
137. shyouhei
(卜部昌平)		 2270 Avatar for shyouhei
138. KaenBlaze
(Kaen)		 2247 Avatar for KaenBlaze
139. trust-delta
(trust-delta)		 2234 Avatar for trust-delta
140. fujitatomoya
(Tomoya Fujita)		 2224 Avatar for fujitatomoya
141. XiaomingX
(Y11)		 2223 Avatar for XiaomingX
142. yusukebe
(Yusuke Wada)		 2207 Avatar for yusukebe
143. sideshowbarker
()		 2200 Avatar for sideshowbarker
144. kt3k
(Yoshiya Hinosawa)		 2198 Avatar for kt3k
145. yshrsmz
(Yasuhiro SHIMIZU)		 2150 Avatar for yshrsmz
146. Songmu
(Masayuki Matsuki)		 2114 Avatar for Songmu
147. hardfist
(hardfist)		 2054 Avatar for hardfist
148. vrtmrz
(vorotamoroz)		 2038 Avatar for vrtmrz
149. norbusan
(Norbert Preining)		 2029 Avatar for norbusan
150. haya14busa
(haya14busa)		 2029 Avatar for haya14busa
151. Anionix
(ᅟ᠎S⁢ho͏؜Tᅠakaᅟy⁣an︎aᅠg⁡i)		 2018 Avatar for Anionix
152. inokawa
()		 1976 Avatar for inokawa
153. c-bata
(c-bata)		 1952 Avatar for c-bata
154. ota-meshi
(Yosuke Ota)		 1941 Avatar for ota-meshi
155. pocke
(Masataka Pocke Kuwabara)		 1910 Avatar for pocke
156. SethRobinson
(Seth Robinson)		 1901 Avatar for SethRobinson
157. RobertTLange
(Robert Tjarko Lange)		 1893 Avatar for RobertTLange
158. konn
(Hiromi Ishii)		 1881 Avatar for konn
159. tokoik
(Kohe Tokoi)		 1878 Avatar for tokoik
160. kazuho
(Kazuho Oku)		 1858 Avatar for kazuho
161. knu
(Akinori Musha)		 1838 Avatar for knu
162. shibukawa
(Yoshiki Shibukawa)		 1828 Avatar for shibukawa
163. dai-shi
(Daishi Kato)		 1810 Avatar for dai-shi
164. zapabob
(峯岸 亮)		 1809 Avatar for zapabob
165. sorah
(Sorah Fukumori)		 1803 Avatar for sorah
166. jsakamoto
()		 1726 Avatar for jsakamoto
167. yutannihilation
(Hiroaki Yutani)		 1719 Avatar for yutannihilation
168. kyamagu
(Kota Yamaguchi)		 1715 Avatar for kyamagu
169. TimOliver
(Tim Oliver)		 1695 Avatar for TimOliver
170. waylandzhang
(WAYLAND ZHANG)		 1680 Avatar for waylandzhang
171. machida
(machida)		 1680 Avatar for machida
172. touyou
(Fujii Yosuke)		 1669 Avatar for touyou
173. babarot
(Masaki ISHIYAMA)		 1669 Avatar for babarot
174. kazunori279
(Kaz Sato)		 1668 Avatar for kazunori279
175. Shougo
(Shougo)		 1666 Avatar for Shougo
176. privatenumber
(Hiroki Osame)		 1665 Avatar for privatenumber
177. noborus
(Noboru Saito)		 1663 Avatar for noborus
178. luadebug
(Saikari)		 1630 Avatar for luadebug
179. iebb
(ieb)		 1629 Avatar for iebb
180. nwtgck
(Ryo Ota)		 1623 Avatar for nwtgck
181. ktoso
(Konrad `ktoso` Malawski)		 1621 Avatar for ktoso
182. rob0pup
(Robin)		 1614 Avatar for rob0pup
183. lacolaco
(Suguru Inatomi)		 1613 Avatar for lacolaco
184. mopemope
(Yutaka Matsubara)		 1603 Avatar for mopemope
185. taisukef
(Taisuke Fukuno)		 1584 Avatar for taisukef
186. nwiizo
(nwiizo)		 1582 Avatar for nwiizo
187. mika-f
(MOCHIZUKI Kanon)		 1570 Avatar for mika-f
188. ymotongpoo
(Yoshi Yamaguchi)		 1566 Avatar for ymotongpoo
189. tigercosmos
(Liu, An-Chi)		 1565 Avatar for tigercosmos
190. takahirom
(Takahiro Menju)		 1564 Avatar for takahirom
191. egisatoshi
(Satoshi Egi)		 1529 Avatar for egisatoshi
192. smoogipoo
(Dan Balasescu)		 1523 Avatar for smoogipoo
193. mayocream
(Mayo Takanashi)		 1522 Avatar for mayocream
194. eltociear
(Ikko Eltociear Ashimine)		 1520 Avatar for eltociear
195. udzura
(Kondo Uchio)		 1513 Avatar for udzura
196. fujita
(FUJITA Tomonori)		 1505 Avatar for fujita
197. deepak1556
(Robo)		 1503 Avatar for deepak1556
198. otiai10
(Hiromu OCHIAI)		 1494 Avatar for otiai10
199. Comamoca
(Comamoca)		 1484 Avatar for Comamoca
200. wadackel
(tsuyoshi wada)		 1483 Avatar for wadackel
201. drasticactions
(Tim Miller)		 1482 Avatar for drasticactions
202. kazeburo
(Masahiro Nagano)		 1474 Avatar for kazeburo
203. anuraaga
(Anuraag (Rag) Agrawal)		 1473 Avatar for anuraaga
204. int128
(Hidetake Iwata)		 1472 Avatar for int128
205. syohex
(Shohei YOSHIDA)		 1472 Avatar for syohex
206. vraestoren
(huok)		 1464 Avatar for vraestoren
207. cho45
(Satoh, Hiroh)		 1423 Avatar for cho45
208. lepture
(Hsiaoming Yang)		 1421 Avatar for lepture
209. hashrock
(hashrock)		 1419 Avatar for hashrock
210. domenic
(Domenic Denicola)		 1417 Avatar for domenic
211. dai
(dai)		 1416 Avatar for dai
212. melpon
(melpon)		 1413 Avatar for melpon
213. bokuweb
(bokuweb)		 1397 Avatar for bokuweb
214. champierre
(Junya Ishihara)		 1383 Avatar for champierre
215. cosmo0920
(Hiroshi Hatake)		 1363 Avatar for cosmo0920
216. shimat
(shimat)		 1358 Avatar for shimat
217. craftzdog
(Takuya Matsuyama)		 1347 Avatar for craftzdog
218. peterzhu2118
(Peter Zhu)		 1345 Avatar for peterzhu2118
219. hotchpotch
(Yuichi Tateno (secon))		 1337 Avatar for hotchpotch
220. dsh0416
(Delton Ding)		 1324 Avatar for dsh0416
221. p-x9
()		 1324 Avatar for p-x9
222. fygar256
(Taisuke Maekawa)		 1321 Avatar for fygar256
223. tatsuyafujisaki
(Tatsuya Fujisaki)		 1310 Avatar for tatsuyafujisaki
224. yuuki
(Yuuki TSUBOUCHI)		 1304 Avatar for yuuki
225. nuskey8
(Yusuke Nakada)		 1302 Avatar for nuskey8
226. masarakki
(masarakki)		 1296 Avatar for masarakki
227. rui314
(Rui Ueyama)		 1293 Avatar for rui314
228. repeatedly
(Masahiro Nakagawa)		 1261 Avatar for repeatedly
229. ariaghora
(Aria Ghora Prabono)		 1250 Avatar for ariaghora
230. soutaro
(Soutaro Matsumoto)		 1244 Avatar for soutaro
231. kaityo256
(Hiroshi Watanabe)		 1242 Avatar for kaityo256
232. taea
(taea)		 1240 Avatar for taea
233. masuidrive
(Yuichiro MASUI)		 1237 Avatar for masuidrive
234. ryo8000
(Ryo Hasegawa)		 1227 Avatar for ryo8000
235. rhysd
(Linda_pp)		 1227 Avatar for rhysd
236. taichi-ishitani
(Taichi Ishitani)		 1225 Avatar for taichi-ishitani
237. NicolasDorier
(Nicolas Dorier)		 1219 Avatar for NicolasDorier
238. usualoma
(Taku Amano)		 1217 Avatar for usualoma
239. rmackay9
(Randy Mackay)		 1215 Avatar for rmackay9
240. t3tra-dev
(t3tra)		 1202 Avatar for t3tra-dev
241. ThaddeusJiang
(天海 原 / AMAMI Hara)		 1200 Avatar for ThaddeusJiang
242. aki-ph-chem
(Aki)		 1199 Avatar for aki-ph-chem
243. uhyo
(uhyo)		 1196 Avatar for uhyo
244. akatsuki105
(Akatsuki)		 1189 Avatar for akatsuki105
245. neka-nat
(k-tanaka)		 1188 Avatar for neka-nat
246. piroor
(YUKI "Piro" Hiroshi)		 1186 Avatar for piroor
247. msakai
(Masahiro Sakai)		 1181 Avatar for msakai
248. izumin5210
(Masayuki Izumi)		 1180 Avatar for izumin5210
249. hiroppy
(Yuta Hiroto)		 1180 Avatar for hiroppy
250. uezo
(uezo)		 1179 Avatar for uezo
251. viasnake
(snake)		 1177 Avatar for viasnake
252. termoshtt
(Toshiki Teramura)		 1170 Avatar for termoshtt
253. shibayan
(Tatsuro Shibamura)		 1169 Avatar for shibayan
254. meganetaaan
(Shinya Ishikawa)		 1158 Avatar for meganetaaan
255. syuilo
(syuilo)		 1156 Avatar for syuilo
256. nakasyou
(Shotaro Nakamura)		 1152 Avatar for nakasyou

Organizations

Rank Organization Members
1. ruby 10
2. vim-jp 6
3. asakusarb 6
4. ruby-no-kai 5
5. perl-users-jp 5
6. oss-gate 5
7. reviewdog 4
8. potatotips 4
9. emacs-jp 4
10. msgpack 4