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 2026-05-02 15:16:21 +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 132757 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. bannzai
(bannzai)		 37273 Avatar for bannzai
2. yuiseki
(yuiseki)		 17453 Avatar for yuiseki
3. tokuhirom
(Tokuhiro Matsuno)		 13905 Avatar for tokuhirom
4. mizchi
(Kotaro Chikuba)		 13714 Avatar for mizchi
5. j5ik2o
(Junichi Kato)		 9605 Avatar for j5ik2o
6. unhappychoice
(Yuji Ueki)		 9157 Avatar for unhappychoice
7. sile
(Takeru Ohta)		 8731 Avatar for sile
8. fumiya-kume
(kuu(Fumiya Kume))		 8478 Avatar for fumiya-kume
9. MagicalTux
(Mark Karpelès)		 8243 Avatar for MagicalTux
10. manman4
(manman4)		 8185 Avatar for manman4
11. xuwei-k
(kenji yoshida)		 8060 Avatar for xuwei-k
12. yanorei32
(Ray Yano | あねてあ)		 7960 Avatar for yanorei32
13. sapphi-red
(翠)		 7432 Avatar for sapphi-red
14. ashryanbeats
(Ash Ryan Arnwine)		 7426 Avatar for ashryanbeats
15. sue445
(Go Sueyoshi)		 7312 Avatar for sue445
16. tekezo
(Takayama Fumihiko)		 7221 Avatar for tekezo
17. houko
(Evan)		 7155 Avatar for houko
18. mizzy
(Gosuke Miyashita)		 7092 Avatar for mizzy
19. taiki-e
(Taiki Endo)		 6987 Avatar for taiki-e
20. azu
(azu)		 6938 Avatar for azu
21. ryota-murakami
(Ryota Murakami)		 6763 Avatar for ryota-murakami
22. miyako
(Keisuke Miyako)		 6761 Avatar for miyako
23. shinh
(Shinichiro Hamaji)		 6755 Avatar for shinh
24. harupy
(Harutaka Kawamura)		 6618 Avatar for harupy
25. suzuki-shunsuke
(Shunsuke Suzuki)		 6326 Avatar for suzuki-shunsuke
26. k1LoW
(Ken’ichiro Oyama)		 6320 Avatar for k1LoW
27. koriym
(Akihito Koriyama)		 6098 Avatar for koriym
28. guitarrapc
(Ikiru Yoshizaki)		 5843 Avatar for guitarrapc
29. yuki-kimoto
(Yuki Kimoto)		 5722 Avatar for yuki-kimoto
30. shogo82148
(ICHINOSE Shogo)		 5656 Avatar for shogo82148
31. hsbt
(Hiroshi SHIBATA)		 5626 Avatar for hsbt
32. sxzz
(Kevin Deng)		 5409 Avatar for sxzz
33. tkoyama010
(Tetsuo Koyama)		 5392 Avatar for tkoyama010
34. hakatashi
(Koki Takahashi)		 5352 Avatar for hakatashi
35. rsasaki0109
(rsasaki0109)		 5058 Avatar for rsasaki0109
36. ianlewis
(Ian Lewis)		 5036 Avatar for ianlewis
37. hi-ogawa
(Hiroshi Ogawa)		 4768 Avatar for hi-ogawa
38. AkihiroSuda
(Akihiro Suda)		 4742 Avatar for AkihiroSuda
39. kou
(Sutou Kouhei)		 4695 Avatar for kou
40. nateberkopec
(Nate Berkopec)		 4691 Avatar for nateberkopec
41. bobbens
(Edgar Simo-Serra)		 4524 Avatar for bobbens
42. yasulab
(Yohei Yasukawa)		 4425 Avatar for yasulab
43. europanite
(europanite)		 4393 Avatar for europanite
44. YumNumm
(Ryotaro Onoue)		 4320 Avatar for YumNumm
45. tk0miya
(Takeshi KOMIYA)		 4266 Avatar for tk0miya
46. ykzts
(Yamagishi Kazutoshi)		 4101 Avatar for ykzts
47. lestrrat
(lestrrat)		 4050 Avatar for lestrrat
48. winebarrel
(Genki Sugawara)		 4009 Avatar for winebarrel
49. peppy
(Dean Herbert)		 3884 Avatar for peppy
50. toastkidjp
(Toast kid)		 3726 Avatar for toastkidjp
51. EdamAme-x
(EdamAmex)		 3675 Avatar for EdamAme-x
52. terasakisatoshi
(Satoshi Terasaki)		 3568 Avatar for terasakisatoshi
53. mattn
(mattn)		 3546 Avatar for mattn
54. fujiwara
(FUJIWARA Shunichiro)		 3441 Avatar for fujiwara
55. yamadashy
(Kazuki Yamada)		 3409 Avatar for yamadashy
56. halogenandtoast
(Matthew Mongeau)		 3406 Avatar for halogenandtoast
57. sorairolake
(Shun Sakai)		 3405 Avatar for sorairolake
58. asukaminato0721
(Asuka Minato)		 3319 Avatar for asukaminato0721
59. yug1224
(Yuji Yamaguchi)		 3291 Avatar for yug1224
60. sevenc-nanashi
(Nanashi.)		 3259 Avatar for sevenc-nanashi
61. lambdalisue
(Λlisue)		 3256 Avatar for lambdalisue
62. gfx
(FUJI Goro)		 3226 Avatar for gfx
63. aviatesk
(Shuhei Kadowaki)		 3221 Avatar for aviatesk
64. amatsuda
(Akira Matsuda)		 3205 Avatar for amatsuda
65. lhl
(Leonard)		 3142 Avatar for lhl
66. tatsuhiro-t
(Tatsuhiro Tsujikawa)		 3095 Avatar for tatsuhiro-t
67. making
(Toshiaki Maki)		 3067 Avatar for making
68. koxudaxi
(Koudai Aono)		 3066 Avatar for koxudaxi
69. PINTO0309
(Katsuya Hyodo)		 2993 Avatar for PINTO0309
70. conao3
(Naoya Yamashita)		 2990 Avatar for conao3
71. coliff
(Christian Oliff)		 2944 Avatar for coliff
72. sksat
(sksat)		 2875 Avatar for sksat
73. dalance
(Naoya Hatta)		 2872 Avatar for dalance
74. Hiroshiba
(Hiroshiba)		 2847 Avatar for Hiroshiba
75. mashharuki
(Haruki Kondo)		 2843 Avatar for mashharuki
76. yutkat
(Yuta Katayama)		 2813 Avatar for yutkat
77. 1amageek
(1amageek)		 2812 Avatar for 1amageek
78. keijiro
(Keijiro Takahashi)		 2805 Avatar for keijiro
79. anatawa12
(anatawa12)		 2801 Avatar for anatawa12
80. gkjohnson
(Garrett Johnson)		 2798 Avatar for gkjohnson
81. hajimehoshi
(Hajime Hoshi)		 2793 Avatar for hajimehoshi
82. haya14busa
(haya14busa)		 2791 Avatar for haya14busa
83. bmf-san
(Kenta Takeuchi)		 2780 Avatar for bmf-san
84. hoochanlon
(123456)		 2732 Avatar for hoochanlon
85. whitphx
(Yuichiro Tachibana (Tsuchiya))		 2710 Avatar for whitphx
86. ubugeeei
(ubugeeei)		 2678 Avatar for ubugeeei
87. JohnTitor
(Yuki Okushi)		 2672 Avatar for JohnTitor
88. komagata
(Masaki Komagata)		 2614 Avatar for komagata
89. sigma7863
(Sigma)		 2527 Avatar for sigma7863
90. matz
(Yukihiro "Matz" Matsumoto)		 2497 Avatar for matz
91. ursm
(Keita Urashima)		 2455 Avatar for ursm
92. fujitatomoya
(Tomoya Fujita)		 2439 Avatar for fujitatomoya
93. seratch
(Kazuhiro Sera)		 2433 Avatar for seratch
94. miurahr
(Hiroshi Miura)		 2409 Avatar for miurahr
95. 1024jp
(1024jp)		 2395 Avatar for 1024jp
96. yshrsmz
(Yasuhiro SHIMIZU)		 2348 Avatar for yshrsmz
97. kmizu
(Kota Mizushima)		 2343 Avatar for kmizu
98. ksoichiro
(Soichiro Kashima)		 2334 Avatar for ksoichiro
99. shimbaco
(Shimba, Koji)		 2308 Avatar for shimbaco
100. onevcat
(Wei Wang)		 2295 Avatar for onevcat
101. nobu
(Nobuyoshi Nakada)		 2292 Avatar for nobu
102. kishikawakatsumi
(Kishikawa Katsumi)		 2258 Avatar for kishikawakatsumi
103. atsushieno
(Atsushi Eno)		 2253 Avatar for atsushieno
104. wkentaro
(Kentaro Wada)		 2252 Avatar for wkentaro
105. mcgoon
(van)		 2228 Avatar for mcgoon
106. Watson1978
(Shizuo Fujita)		 2190 Avatar for Watson1978
107. tmori
(Takashi Mori)		 2189 Avatar for tmori
108. cpojer
(Christoph Nakazawa)		 2172 Avatar for cpojer
109. hakuturu583
(Masaya Kataoka)		 2169 Avatar for hakuturu583
110. mumoshu
(Yusuke Kuoka)		 2159 Avatar for mumoshu
111. koic
(Koichi ITO)		 2154 Avatar for koic
112. atztogo
(Atsushi Togo)		 2144 Avatar for atztogo
113. norbusan
(Norbert Preining)		 2142 Avatar for norbusan
114. akiomik
(Akiomi KAMAKURA)		 2107 Avatar for akiomik
115. Songmu
(Masayuki Matsuki)		 2042 Avatar for Songmu
116. kazupon
(kazuya kawaguchi)		 2039 Avatar for kazupon
117. kitao
(Takashi Kitao)		 2011 Avatar for kitao
118. yutannihilation
(Hiroaki Yutani)		 1998 Avatar for yutannihilation
119. leaysgur
(Yuji Sugiura)		 1981 Avatar for leaysgur
120. yusukebe
(Yusuke Wada)		 1941 Avatar for yusukebe
121. cho45
(Satoh, Hiroh)		 1920 Avatar for cho45
122. Saqoosha
(Saqoosha)		 1914 Avatar for Saqoosha
123. ota-meshi
(Yosuke Ota)		 1885 Avatar for ota-meshi
124. taisukef
(Taisuke Fukuno)		 1880 Avatar for taisukef
125. ko1
(Koichi Sasada)		 1862 Avatar for ko1
126. sideshowbarker
()		 1853 Avatar for sideshowbarker
127. touyou
(Fujii Yosuke)		 1845 Avatar for touyou
128. mosuka
(Minoru OSUKA)		 1839 Avatar for mosuka
129. hardfist
(hardfist)		 1827 Avatar for hardfist
130. Jannchie
(Jianqi Pan)		 1816 Avatar for Jannchie
131. john-rocky
(Daisuke Majima)		 1789 Avatar for john-rocky
132. kt3k
(Yoshiya Hinosawa)		 1784 Avatar for kt3k
133. luadebug
(Saikari)		 1781 Avatar for luadebug
134. skanehira
(skanehira)		 1780 Avatar for skanehira
135. zchee
(Koichi Shiraishi)		 1773 Avatar for zchee
136. smoogipoo
(Dan Balasescu)		 1770 Avatar for smoogipoo
137. mopemope
(Yutaka Matsubara)		 1724 Avatar for mopemope
138. himkt
(himkt)		 1722 Avatar for himkt
139. koron
(MURAOKA Taro)		 1698 Avatar for koron
140. syoyo
(Syoyo Fujita)		 1692 Avatar for syoyo
141. int128
(Hidetake Iwata)		 1685 Avatar for int128
142. privatenumber
(Hiroki Osame)		 1671 Avatar for privatenumber
143. kawasima
(Yoshitaka Kawashima)		 1662 Avatar for kawasima
144. inokawa
()		 1662 Avatar for inokawa
145. jsakamoto
()		 1661 Avatar for jsakamoto
146. zonuexe
(USAMI Kenta)		 1657 Avatar for zonuexe
147. dai-shi
(Daishi Kato)		 1648 Avatar for dai-shi
148. akatsuki105
(Akatsuki)		 1618 Avatar for akatsuki105
149. shyouhei
(卜部昌平)		 1613 Avatar for shyouhei
150. kyamagu
(Kota Yamaguchi)		 1612 Avatar for kyamagu
151. noborus
(Noboru Saito)		 1579 Avatar for noborus
152. ktoso
(Konrad `ktoso` Malawski)		 1562 Avatar for ktoso
153. kazuho
(Kazuho Oku)		 1562 Avatar for kazuho
154. pocke
(Masataka Pocke Kuwabara)		 1542 Avatar for pocke
155. kexi
(Kei Nakayama)		 1538 Avatar for kexi
156. Shougo
(Shougo)		 1537 Avatar for Shougo
157. babarot
(Masaki ISHIYAMA)		 1527 Avatar for babarot
158. takahirom
(Takahiro Menju)		 1527 Avatar for takahirom
159. trust-delta
(trust-delta)		 1504 Avatar for trust-delta
160. vraestoren
(huok)		 1502 Avatar for vraestoren
161. sorah
(Sorah Fukumori)		 1451 Avatar for sorah
162. mayocream
(Mayo Takanashi)		 1430 Avatar for mayocream
163. syuilo
(syuilo)		 1428 Avatar for syuilo
164. syohex
(Shohei YOSHIDA)		 1428 Avatar for syohex
165. deepak1556
(Robo)		 1421 Avatar for deepak1556
166. domenic
(Domenic Denicola)		 1411 Avatar for domenic
167. rmackay9
(Randy Mackay)		 1394 Avatar for rmackay9
168. rhysd
(Linda_pp)		 1388 Avatar for rhysd
169. nwiizo
(nwiizo)		 1388 Avatar for nwiizo
170. waylandzhang
(WAYLAND ZHANG)		 1382 Avatar for waylandzhang
171. masarakki
(masarakki)		 1380 Avatar for masarakki
172. drasticactions
(Tim Miller)		 1380 Avatar for drasticactions
173. Comamoca
(Comamoca)		 1372 Avatar for Comamoca
174. neka-nat
(k-tanaka)		 1366 Avatar for neka-nat
175. lacolaco
(Suguru Inatomi)		 1358 Avatar for lacolaco
176. ryotarai
(Ryota Arai)		 1349 Avatar for ryotarai
177. repeatedly
(Masahiro Nakagawa)		 1348 Avatar for repeatedly
178. kaityo256
(Hiroshi Watanabe)		 1339 Avatar for kaityo256
179. siketyan
(Naoki Ikeguchi)		 1329 Avatar for siketyan
180. piroor
(YUKI "Piro" Hiroshi)		 1328 Avatar for piroor
181. nobuyuki83
(Nobuyuki Umetani)		 1314 Avatar for nobuyuki83
182. yuuki
(Yuuki TSUBOUCHI)		 1309 Avatar for yuuki
183. champierre
(Junya Ishihara)		 1297 Avatar for champierre
184. rigaya
(rigaya)		 1296 Avatar for rigaya
185. soutaro
(Soutaro Matsumoto)		 1288 Avatar for soutaro
186. tatsuyafujisaki
(Tatsuya Fujisaki)		 1271 Avatar for tatsuyafujisaki
187. mpyw
(mpyw)		 1266 Avatar for mpyw
188. neet
(Ryō Igarashi (五十嵐 涼))		 1266 Avatar for neet
189. udzura
(Kondo Uchio)		 1265 Avatar for udzura
190. eltociear
(Ikko Eltociear Ashimine)		 1263 Avatar for eltociear
191. kazu-yamamoto
(Kazu Yamamoto)		 1251 Avatar for kazu-yamamoto
192. usualoma
(Taku Amano)		 1243 Avatar for usualoma
193. knu
(Akinori Musha)		 1233 Avatar for knu
194. miurla
(Yoshiki Miura)		 1221 Avatar for miurla
195. Avimitin
(Jiongjia Lu)		 1220 Avatar for Avimitin
196. davetang
(Dave Tang)		 1218 Avatar for davetang
197. uezo
(uezo)		 1215 Avatar for uezo
198. taichi-ishitani
(Taichi Ishitani)		 1212 Avatar for taichi-ishitani
199. Saul-Mirone
(Mirone)		 1201 Avatar for Saul-Mirone
200. anuraaga
(Anuraag (Rag) Agrawal)		 1198 Avatar for anuraaga
201. yowatanabe
(Yoshiyuki Watanabe)		 1195 Avatar for yowatanabe
202. konn
(Hiromi Ishii)		 1191 Avatar for konn
203. sugyan
(Yoshihiro Sugi)		 1184 Avatar for sugyan
204. NicolasDorier
(Nicolas Dorier)		 1174 Avatar for NicolasDorier
205. hatoo
()		 1172 Avatar for hatoo
206. c-bata
(c-bata)		 1172 Avatar for c-bata
207. smorimoto
(Sora Morimoto)		 1165 Avatar for smorimoto
208. nwtgck
(Ryo Ota)		 1160 Avatar for nwtgck
209. taea
(taea)		 1159 Avatar for taea
210. cosmo0920
(Hiroshi Hatake)		 1158 Avatar for cosmo0920
211. rinsuki
(rinsuki)		 1158 Avatar for rinsuki
212. RobertTLange
(Robert Tjarko Lange)		 1147 Avatar for RobertTLange
213. icoxfog417
(Takahiro Kubo)		 1129 Avatar for icoxfog417
214. wadackel
(tsuyoshi wada)		 1128 Avatar for wadackel
215. ryo8000
(Ryo Hasegawa)		 1122 Avatar for ryo8000
216. kurone-kito
(Kuroné Kito (黒音キト))		 1116 Avatar for kurone-kito
217. willnet
(Shinichi Maeshima)		 1104 Avatar for willnet
218. breezewish
(Wish)		 1100 Avatar for breezewish
219. machida
(machida)		 1089 Avatar for machida
220. wasabeef
(Daichi Furiya)		 1089 Avatar for wasabeef
221. TimOliver
(Tim Oliver)		 1089 Avatar for TimOliver
222. nuskey8
(Yusuke Nakada)		 1083 Avatar for nuskey8
223. toshimaru
(Toshimaru)		 1078 Avatar for toshimaru
224. muukii
(Hiroshi Kimura)		 1074 Avatar for muukii
225. kazunori279
(Kaz Sato)		 1069 Avatar for kazunori279
226. msakai
(Masahiro Sakai)		 1064 Avatar for msakai
227. tokoik
(Kohe Tokoi)		 1063 Avatar for tokoik
228. fukamachi
(Eitaro Fukamachi)		 1056 Avatar for fukamachi
229. momeemt
(Mutsuha Asada)		 1053 Avatar for momeemt
230. dvcrn
(David)		 1038 Avatar for dvcrn
231. otiai10
(Hiromu OCHIAI)		 1032 Avatar for otiai10
232. p-chan
(P-Chan)		 1028 Avatar for p-chan
233. takahashim
(Masayoshi Takahashi)		 1027 Avatar for takahashim
234. zcbenz
(Cheng)		 1025 Avatar for zcbenz
235. p-x9
()		 1009 Avatar for p-x9
236. fa0311
(ふぁ)		 1005 Avatar for fa0311
237. kaguya0107
(kaguya107)		 1004 Avatar for kaguya0107
238. hashrock
(hashrock)		 1001 Avatar for hashrock
239. aki-ph-chem
(Aki)		 1000 Avatar for aki-ph-chem
240. termoshtt
(Toshiki Teramura)		 998 Avatar for termoshtt
241. izumin5210
(Masayuki Izumi)		 993 Avatar for izumin5210
242. reindex-ot
(Re*Index. (ot_inc))		 992 Avatar for reindex-ot
243. ninoseki
(Manabu Niseki)		 984 Avatar for ninoseki
244. melpon
(melpon)		 975 Avatar for melpon
245. AungKaung1928
(Aung Kaung Myat)		 974 Avatar for AungKaung1928
246. uzulla
(uzulla / Junichi Ishida)		 974 Avatar for uzulla
247. kenjinote
(kenji)		 955 Avatar for kenjinote
248. Kamesuta
(Kamesuta)		 953 Avatar for Kamesuta
249. hiroppy
(Yuta Hiroto)		 942 Avatar for hiroppy
250. iAJue
(阿珏)		 941 Avatar for iAJue
251. fygar256
(Taisuke Maekawa)		 940 Avatar for fygar256
252. aliceinwire
(Arisu Tachibana)		 936 Avatar for aliceinwire
253. nagadomi
()		 930 Avatar for nagadomi
254. hewigovens
(Tao Xu)		 926 Avatar for hewigovens
255. lepture
(Hsiaoming Yang)		 918 Avatar for lepture
256. qnighy
(Masaki Hara)		 915 Avatar for qnighy

Organizations

Rank Organization Members
1. ruby 9
2. epicgames 6
3. vim-jp 6
4. asakusarb 6
5. ruby-no-kai 5
6. oss-gate 5
7. emacs-jp 4
8. scalajp 4
9. ranguba 4
10. web-platform-tests 4