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 2026-08-11 08:06:45 +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 contributions for each user (public & private). There are 140527 total users in the region and you need at least 224 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_private/USERNAME.svg)](https://user-badge.committers.top/japan_private/USERNAME)
For organizations, you need to use a slightly different markup: 
[![committers.top badge](https://org-badge.committers.top/japan_private/ORGNAME.svg)](https://org-badge.committers.top/japan_private/ORGNAME)
In case you aren't currently ranked on this page, you'll simply receive an "unranked" badge.

Rank User Contribs Picture
1. kishikawakatsumi
(Kishikawa Katsumi)		 42391 Avatar for kishikawakatsumi
2. terasakisatoshi
(Satoshi Terasaki)		 40388 Avatar for terasakisatoshi
3. bannzai
(bannzai)		 37091 Avatar for bannzai
4. MagicalTux
(Mark Karpelès)		 35138 Avatar for MagicalTux
5. atyenoria
(Akinori Nakajima)		 33573 Avatar for atyenoria
6. houko
(Evan)		 30886 Avatar for houko
7. rsasaki0109
(Ryohei Sasaki)		 26804 Avatar for rsasaki0109
8. mizchi
(Kotaro Chikuba)		 23819 Avatar for mizchi
9. amachang
(Hitoshi Amano)		 23304 Avatar for amachang
10. tokuhirom
(Tokuhiro Matsuno)		 22463 Avatar for tokuhirom
11. unhappychoice
(Yuji Ueki)		 22450 Avatar for unhappychoice
12. j5ik2o
(Junichi Kato)		 22413 Avatar for j5ik2o
13. yuiseki
(yuiseki)		 20349 Avatar for yuiseki
14. k-takeuchi220
(Katsushi Takeuchi)		 19881 Avatar for k-takeuchi220
15. lhl
(Leonard)		 19143 Avatar for lhl
16. fumiya-kume
(kuu(Fumiya Kume))		 18601 Avatar for fumiya-kume
17. Songmu
(Masayuki Matsuki)		 18562 Avatar for Songmu
18. mizzy
(Gosuke Miyashita)		 18147 Avatar for mizzy
19. dev-yakuza
(DeKu)		 17584 Avatar for dev-yakuza
20. kurone-kito
(Kuroné Kito (黒音キト))		 17118 Avatar for kurone-kito
21. shinh
(Shinichiro Hamaji)		 16027 Avatar for shinh
22. winebarrel
(Genki Sugawara)		 15524 Avatar for winebarrel
23. Coordinate-Cat
(Ocat)		 15323 Avatar for Coordinate-Cat
24. bokuweb
(bokuweb)		 15114 Avatar for bokuweb
25. manman4
(manman4)		 15031 Avatar for manman4
26. ubugeeei
(ubugeeei)		 14834 Avatar for ubugeeei
27. harupy
(Harutaka Kawamura)		 14549 Avatar for harupy
28. babarot
(Masaki ISHIYAMA)		 14237 Avatar for babarot
29. YumNumm
(Ryotaro Onoue)		 14097 Avatar for YumNumm
30. siketyan
(Naoki Ikeguchi)		 13181 Avatar for siketyan
31. sksat
(sksat)		 12988 Avatar for sksat
32. spinute
(Pin)		 12960 Avatar for spinute
33. sile
(Takeru Ohta)		 12845 Avatar for sile
34. saltyshiomix
(Shiono Yoshihide)		 12314 Avatar for saltyshiomix
35. shogo82148
(ICHINOSE Shogo)		 11758 Avatar for shogo82148
36. jfbastien
(JF Bastien)		 11440 Avatar for jfbastien
37. coliff
(Christian Oliff)		 11173 Avatar for coliff
38. suzuki-shunsuke
(Shunsuke Suzuki)		 10966 Avatar for suzuki-shunsuke
39. guitarrapc
(Ikiru Yoshizaki)		 10893 Avatar for guitarrapc
40. baba-s
(baba_s)		 10805 Avatar for baba-s
41. otiai10
(Hiromu OCHIAI)		 10744 Avatar for otiai10
42. hsbt
(Hiroshi SHIBATA)		 10638 Avatar for hsbt
43. 1amageek
(1amageek)		 10441 Avatar for 1amageek
44. privatenumber
(Hiroki Osame)		 10433 Avatar for privatenumber
45. sobri909
(Matt Greenfield)		 10029 Avatar for sobri909
46. daitomanabe
(Daito Manabe)		 9763 Avatar for daitomanabe
47. xuwei-k
(kenji yoshida)		 9758 Avatar for xuwei-k
48. syoyo
(Syoyo Fujita)		 9748 Avatar for syoyo
49. sue445
(Go Sueyoshi)		 9560 Avatar for sue445
50. taiki-e
(Taiki Endo)		 9398 Avatar for taiki-e
51. yanorei32
(Ray Yano | あねてあ)		 9388 Avatar for yanorei32
52. seanchas116
(Ryohei Ikegami)		 9293 Avatar for seanchas116
53. lestrrat
(lestrrat)		 9262 Avatar for lestrrat
54. ryota-murakami
(Ryota Murakami)		 9164 Avatar for ryota-murakami
55. yamadashy
(Kazuki Yamada)		 9107 Avatar for yamadashy
56. zonuexe
(USAMI Kenta)		 8926 Avatar for zonuexe
57. edom18
(edo)		 8906 Avatar for edom18
58. breezewish
(Wish)		 8841 Avatar for breezewish
59. EdamAme-x
(EdamAmex)		 8767 Avatar for EdamAme-x
60. Code-Hex
(Kei Kamikawa)		 8766 Avatar for Code-Hex
61. tekezo
(Takayama Fumihiko)		 8748 Avatar for tekezo
62. wadackel
(tsuyoshi wada)		 8394 Avatar for wadackel
63. fukayatsu
(Atsuo Fukaya)		 8337 Avatar for fukayatsu
64. akameco
(akameco)		 8271 Avatar for akameco
65. nateberkopec
(Nate Berkopec)		 8260 Avatar for nateberkopec
66. ianlewis
(Ian Lewis)		 8114 Avatar for ianlewis
67. yshrsmz
(Yasuhiro SHIMIZU)		 8064 Avatar for yshrsmz
68. lambdalisue
(Λlisue)		 8016 Avatar for lambdalisue
69. ursm
(Keita Urashima)		 7969 Avatar for ursm
70. matsumotory
(Ryosuke Matsumoto / @matsumotory)		 7948 Avatar for matsumotory
71. ngs
(Atsushi NAGASE)		 7884 Avatar for ngs
72. yug1224
(Yuji Yamaguchi)		 7844 Avatar for yug1224
73. sotarok
(Sotaro Karasawa)		 7837 Avatar for sotarok
74. XiaomingX
(Y11)		 7810 Avatar for XiaomingX
75. mika-f
(MOCHIZUKI Kanon)		 7690 Avatar for mika-f
76. kenn
(Kenn Ejima)		 7669 Avatar for kenn
77. tkoyama010
(Tetsuo Koyama)		 7639 Avatar for tkoyama010
78. koriym
(Akihito Koriyama)		 7624 Avatar for koriym
79. hideakitai
(Hideaki Tai)		 7614 Avatar for hideakitai
80. miyako
(Keisuke Miyako)		 7595 Avatar for miyako
81. Anionix
(ᅟ᠎S⁢ho͏؜Tᅠakaᅟy⁣an︎aᅠg⁡i)		 7592 Avatar for Anionix
82. takahirom
(Takahiro Menju)		 7549 Avatar for takahirom
83. waylandzhang
(WAYLAND ZHANG)		 7489 Avatar for waylandzhang
84. conao3
(Naoya Yamashita)		 7339 Avatar for conao3
85. k1LoW
(Ken’ichiro Oyama)		 7145 Avatar for k1LoW
86. wkentaro
(Kentaro Wada)		 7131 Avatar for wkentaro
87. sapphi-red
(翠)		 7119 Avatar for sapphi-red
88. vvakame
(Masahiro Wakame)		 7064 Avatar for vvakame
89. ochyai
(Yoichi OCHIAI)		 6996 Avatar for ochyai
90. matz
(Yukihiro "Matz" Matsumoto)		 6959 Avatar for matz
91. ko1
(Koichi Sasada)		 6877 Avatar for ko1
92. xeodou
(xeodou)		 6851 Avatar for xeodou
93. mattatz
(Masatatsu Nakamura)		 6754 Avatar for mattatz
94. hakatashi
(Koki Takahashi)		 6743 Avatar for hakatashi
95. takuoka
(Takuya Okamoto)		 6644 Avatar for takuoka
96. uribo
(Shinya Uryu)		 6625 Avatar for uribo
97. mpyw
(mpyw)		 6574 Avatar for mpyw
98. rob0pup
(Robin)		 6531 Avatar for rob0pup
99. RobertTLange
(Robert Tjarko Lange)		 6529 Avatar for RobertTLange
100. TakuSemba
(TakuSemba)		 6467 Avatar for TakuSemba
101. john-rocky
(Daisuke Majima)		 6407 Avatar for john-rocky
102. kyubuns
(kyubuns)		 6377 Avatar for kyubuns
103. hhatto
(Hideo Hattori)		 6369 Avatar for hhatto
104. rosylilly
(Sho Kusano)		 6365 Avatar for rosylilly
105. Saqoosha
(Saqoosha)		 6295 Avatar for Saqoosha
106. shu223
(Shuichi Tsutsumi)		 6247 Avatar for shu223
107. kexi
(Kei Nakayama)		 6180 Avatar for kexi
108. mattn
(mattn)		 6179 Avatar for mattn
109. hajimehoshi
(Hajime Hoshi)		 6144 Avatar for hajimehoshi
110. iebb
(ieb)		 6133 Avatar for iebb
111. kmizu
(Kota Mizushima)		 6113 Avatar for kmizu
112. yuki-kimoto
(Yuki Kimoto)		 6106 Avatar for yuki-kimoto
113. azu
(azu)		 6101 Avatar for azu
114. magurotuna
(Yusuke Tanaka)		 6084 Avatar for magurotuna
115. Yesterday17
(Yesterday17)		 6080 Avatar for Yesterday17
116. tk0miya
(Takeshi KOMIYA)		 6034 Avatar for tk0miya
117. eiel
(HIMURA Tomohiko)		 6013 Avatar for eiel
118. TimOliver
(Tim Oliver)		 6004 Avatar for TimOliver
119. 2bbb
(2bit)		 5932 Avatar for 2bbb
120. sxzz
(Kevin Deng)		 5904 Avatar for sxzz
121. JohnTitor
(Yuki Okushi)		 5807 Avatar for JohnTitor
122. dvcrn
(David)		 5787 Avatar for dvcrn
123. seratch
(Kazuhiro Sera)		 5769 Avatar for seratch
124. Him188
(Him188)		 5739 Avatar for Him188
125. PINTO0309
(Katsuya Hyodo)		 5638 Avatar for PINTO0309
126. trust-delta
(trust-delta)		 5618 Avatar for trust-delta
127. hotchpotch
(Yuichi Tateno (secon))		 5600 Avatar for hotchpotch
128. guo-yu
(Guo Yu)		 5581 Avatar for guo-yu
129. catnose99
(catnose)		 5569 Avatar for catnose99
130. mumoshu
(Yusuke Kuoka)		 5527 Avatar for mumoshu
131. ogaclejapan
(ogaclejapan)		 5476 Avatar for ogaclejapan
132. onevcat
(Wei Wang)		 5409 Avatar for onevcat
133. dennybritz
(Denny Britz)		 5398 Avatar for dennybritz
134. cxxxr
(cxxxr)		 5343 Avatar for cxxxr
135. r-plus
(r-plus)		 5341 Avatar for r-plus
136. hi-ogawa
(Hiroshi Ogawa)		 5259 Avatar for hi-ogawa
137. hakuturu583
(Masaya Kataoka)		 5230 Avatar for hakuturu583
138. anchan828
(Keigo Ando)		 5215 Avatar for anchan828
139. halogenandtoast
(Matthew Mongeau)		 5174 Avatar for halogenandtoast
140. yasulab
(Yohei Yasukawa)		 5148 Avatar for yasulab
141. gfx
(FUJI Goro)		 5039 Avatar for gfx
142. miya0001
(Takayuki Miyauchi)		 4984 Avatar for miya0001
143. Hiroshiba
(Hiroshiba)		 4981 Avatar for Hiroshiba
144. zchee
(Koichi Shiraishi)		 4975 Avatar for zchee
145. masuidrive
(Yuichiro MASUI)		 4949 Avatar for masuidrive
146. ykzts
(Yamagishi Kazutoshi)		 4949 Avatar for ykzts
147. GalvinGao
(GalvinGao)		 4933 Avatar for GalvinGao
148. lacolaco
(Suguru Inatomi)		 4909 Avatar for lacolaco
149. nwiizo
(nwiizo)		 4900 Avatar for nwiizo
150. uzulla
(uzulla / Junichi Ishida)		 4846 Avatar for uzulla
151. kazupon
(kazuya kawaguchi)		 4843 Avatar for kazupon
152. Jannchie
(Jianqi Pan)		 4838 Avatar for Jannchie
153. sonots
(Naotoshi Seo)		 4835 Avatar for sonots
154. AkihiroSuda
(Akihiro Suda)		 4791 Avatar for AkihiroSuda
155. sorah
(Sorah Fukumori)		 4776 Avatar for sorah
156. dalance
(Naoya Hatta)		 4742 Avatar for dalance
157. mesqueeb
(Luca Ban)		 4709 Avatar for mesqueeb
158. peaceiris
(Shohei Ueda)		 4707 Avatar for peaceiris
159. mirakui
(Issei Naruta)		 4702 Avatar for mirakui
160. takahashim
(Masayoshi Takahashi)		 4607 Avatar for takahashim
161. kakutani
(Kakutani Shintaro)		 4582 Avatar for kakutani
162. dahatake
(Daiyu Hatakeyama)		 4549 Avatar for dahatake
163. inokawa
()		 4522 Avatar for inokawa
164. k0i
(k0i)		 4361 Avatar for k0i
165. IloveNooodles
(Muhammad Garebaldhie Er Rahman)		 4348 Avatar for IloveNooodles
166. fujiwara
(FUJIWARA Shunichiro)		 4348 Avatar for fujiwara
167. baku89
(Baku Hashimoto)		 4307 Avatar for baku89
168. sevenc-nanashi
(Nanashi.)		 4288 Avatar for sevenc-nanashi
169. anatawa12
(anatawa12)		 4261 Avatar for anatawa12
170. enliven17
(cankat)		 4212 Avatar for enliven17
171. komagata
(Masaki Komagata)		 4202 Avatar for komagata
172. kjj6198
(Kalan)		 4200 Avatar for kjj6198
173. koxudaxi
(Koudai Aono)		 4167 Avatar for koxudaxi
174. kou
(Sutou Kouhei)		 4163 Avatar for kou
175. kawasima
(Yoshitaka Kawashima)		 4162 Avatar for kawasima
176. takano32
(TAKANO Mitsuhiro)		 4160 Avatar for takano32
177. ksoichiro
(Soichiro Kashima)		 4155 Avatar for ksoichiro
178. nov
(Nov Matake)		 4144 Avatar for nov
179. kamipo
(Ryuta Kamizono)		 4091 Avatar for kamipo
180. inductor
(Kohei Ota (inductor))		 4071 Avatar for inductor
181. amatsuda
(Akira Matsuda)		 4062 Avatar for amatsuda
182. peppy
(Dean Herbert)		 4060 Avatar for peppy
183. AAkira
(Akira Aratani)		 4032 Avatar for AAkira
184. himkt
(himkt)		 4028 Avatar for himkt
185. making
(Toshiaki Maki)		 4009 Avatar for making
186. bee-san
(Autumn (Bee))		 3995 Avatar for bee-san
187. sgr-ksmt
(Suguru Kishimoto)		 3918 Avatar for sgr-ksmt
188. takoneko8
(Taiki Kaneko)		 3918 Avatar for takoneko8
189. pmq20
(Minqi Pan)		 3818 Avatar for pmq20
190. d-date
(Daiki Matsudate)		 3796 Avatar for d-date
191. mashharuki
(Haruki Kondo)		 3775 Avatar for mashharuki
192. eltociear
(Ikko Eltociear Ashimine)		 3766 Avatar for eltociear
193. motemen
(Hironao OTSUBO)		 3766 Avatar for motemen
194. cpojer
(Christoph Nakazawa)		 3736 Avatar for cpojer
195. toastkidjp
(Toast kid)		 3689 Avatar for toastkidjp
196. potato4d
(Takuma HANATANI)		 3644 Avatar for potato4d
197. tmori
(Takashi Mori)		 3641 Avatar for tmori
198. smorimoto
(Sora Morimoto)		 3604 Avatar for smorimoto
199. MITSUHIRO-KURIKI
(K.Mitsuhiro)		 3574 Avatar for MITSUHIRO-KURIKI
200. kadamwhite
(K Adam White)		 3572 Avatar for kadamwhite
201. nghialv
(nghialv)		 3572 Avatar for nghialv
202. Watson1978
(Shizuo Fujita)		 3570 Avatar for Watson1978
203. minaminao
(minaminao)		 3559 Avatar for minaminao
204. syumai
(syumai)		 3542 Avatar for syumai
205. davetang
(Dave Tang)		 3537 Avatar for davetang
206. lightsound
(しまぶー)		 3529 Avatar for lightsound
207. drakeet
(Drakeet)		 3502 Avatar for drakeet
208. heestand-xyz
(Anton Heestand)		 3493 Avatar for heestand-xyz
209. satoruhiga
(Satoru Higa)		 3492 Avatar for satoruhiga
210. udzura
(Kondo Uchio)		 3485 Avatar for udzura
211. haqishen
(haqishen)		 3479 Avatar for haqishen
212. wasabeef
(Daichi Furiya)		 3463 Avatar for wasabeef
213. rikusato0
(Riku Sato)		 3450 Avatar for rikusato0
214. h6ah4i
(Haruki Hasegawa)		 3444 Avatar for h6ah4i
215. m3m0r7
(memory)		 3440 Avatar for m3m0r7
216. ninoseki
(Manabu Niseki)		 3395 Avatar for ninoseki
217. mitmul
(Shunta Saito)		 3393 Avatar for mitmul
218. marty-suzuki
(Taiki Suzuki)		 3370 Avatar for marty-suzuki
219. nobu
(Nobuyoshi Nakada)		 3349 Avatar for nobu
220. craftzdog
(Takuya Matsuyama)		 3345 Avatar for craftzdog
221. bobbens
(Edgar Simo-Serra)		 3336 Avatar for bobbens
222. Layzie
(HIRAKI Satoru)		 3331 Avatar for Layzie
223. shin1x1
(Masashi Shinbara)		 3318 Avatar for shin1x1
224. moznion
(moznion)		 3317 Avatar for moznion
225. aitikgupta
(Aitik Gupta)		 3308 Avatar for aitikgupta
226. hayatoito
(Hayato Ito)		 3301 Avatar for hayatoito
227. shimbaco
(Shimba, Koji)		 3283 Avatar for shimbaco
228. aviatesk
(Shuhei Kadowaki)		 3264 Avatar for aviatesk
229. Kazuhito00
(KazuhitoTakahashi)		 3247 Avatar for Kazuhito00
230. c-bata
(c-bata)		 3226 Avatar for c-bata
231. yhatt
(Yuki Hattori)		 3224 Avatar for yhatt
232. Naturalclar
(Jesse Katsumata)		 3205 Avatar for Naturalclar
233. suin
()		 3194 Avatar for suin
234. shirakaba
(Jamie Birch)		 3193 Avatar for shirakaba
235. syuilo
(syuilo)		 3186 Avatar for syuilo
236. muukii
(Hiroshi Kimura)		 3164 Avatar for muukii
237. matchai
(Matan Kushner)		 3154 Avatar for matchai
238. konn
(Hiromi Ishii)		 3112 Avatar for konn
239. pocke
(Masataka Pocke Kuwabara)		 3097 Avatar for pocke
240. acgotaku
(雪月秋水)		 3093 Avatar for acgotaku
241. hrsh7th
(hrsh7th)		 3053 Avatar for hrsh7th
242. leemengtw
(Meng Lee)		 3047 Avatar for leemengtw
243. sachaos
(Takumasa Sakao)		 3032 Avatar for sachaos
244. tatsuhiro-t
(Tatsuhiro Tsujikawa)		 3023 Avatar for tatsuhiro-t
245. tyoshikawa1106
(Taiki Yoshikawa)		 3000 Avatar for tyoshikawa1106
246. ymotongpoo
(Yoshi Yamaguchi)		 2996 Avatar for ymotongpoo
247. hoothin
()		 2985 Avatar for hoothin
248. aoi1026
(AOI)		 2982 Avatar for aoi1026
249. LISA-KOREA
(Lisa )		 2957 Avatar for LISA-KOREA
250. lepture
(Hsiaoming Yang)		 2951 Avatar for lepture
251. sorairolake
(Shun Sakai)		 2933 Avatar for sorairolake
252. gkjohnson
(Garrett Johnson)		 2932 Avatar for gkjohnson
253. norbusan
(Norbert Preining)		 2932 Avatar for norbusan
254. hitode909
(sushi money)		 2921 Avatar for hitode909
255. 1024jp
(1024jp)		 2892 Avatar for 1024jp
256. sigma7863
(Sigma)		 2886 Avatar for sigma7863

Organizations

Rank Organization Members
1. ruby 8
2. isucon 6
3. epicgames 6
4. potatotips 6
5. asakusarb 5
6. ruby-no-kai 5
7. ukigumo 4
8. emacs-jp 4
9. pfnet 4
10. java-ja 4