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 2026-08-21 03:48:40 +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 140796 total users in the region and you need at least 184 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. terasakisatoshi
(Satoshi Terasaki)		 42804 Avatar for terasakisatoshi
2. kishikawakatsumi
(Kishikawa Katsumi)		 42458 Avatar for kishikawakatsumi
3. bannzai
(bannzai)		 36840 Avatar for bannzai
4. MagicalTux
(Mark Karpelès)		 35641 Avatar for MagicalTux
5. atyenoria
(Akinori Nakajima)		 35020 Avatar for atyenoria
6. houko
(Evan)		 32346 Avatar for houko
7. rsasaki0109
(Ryohei Sasaki)		 27473 Avatar for rsasaki0109
8. amachang
(Hitoshi Amano)		 25327 Avatar for amachang
9. k-takeuchi220
(Katsushi Takeuchi)		 25016 Avatar for k-takeuchi220
10. mizchi
(Kotaro Chikuba)		 24852 Avatar for mizchi
11. tokuhirom
(Tokuhiro Matsuno)		 24829 Avatar for tokuhirom
12. unhappychoice
(Yuji Ueki)		 22854 Avatar for unhappychoice
13. j5ik2o
(Junichi Kato)		 22730 Avatar for j5ik2o
14. yuiseki
(yuiseki)		 20313 Avatar for yuiseki
15. lhl
(Leonard)		 19718 Avatar for lhl
16. kurone-kito
(Kuroné Kito (黒音キト))		 19431 Avatar for kurone-kito
17. fumiya-kume
(kuu(Fumiya Kume))		 19411 Avatar for fumiya-kume
18. dev-yakuza
(DeKu)		 18727 Avatar for dev-yakuza
19. mizzy
(Gosuke Miyashita)		 18709 Avatar for mizzy
20. Songmu
(Masayuki Matsuki)		 18492 Avatar for Songmu
21. YumNumm
(Ryotaro Onoue)		 16511 Avatar for YumNumm
22. bokuweb
(bokuweb)		 15922 Avatar for bokuweb
23. harupy
(Harutaka Kawamura)		 15910 Avatar for harupy
24. ThaddeusJiang
(天海 原 / AMAMI Hara)		 15720 Avatar for ThaddeusJiang
25. ubugeeei
(ubugeeei)		 15571 Avatar for ubugeeei
26. Coordinate-Cat
(Ocat)		 15514 Avatar for Coordinate-Cat
27. winebarrel
(Genki Sugawara)		 15304 Avatar for winebarrel
28. manman4
(manman4)		 15018 Avatar for manman4
29. yuzushioh
(yuzushioh)		 14846 Avatar for yuzushioh
30. shinh
(Shinichiro Hamaji)		 14454 Avatar for shinh
31. babarot
(Masaki ISHIYAMA)		 14207 Avatar for babarot
32. sile
(Takeru Ohta)		 14019 Avatar for sile
33. siketyan
(Naoki Ikeguchi)		 13529 Avatar for siketyan
34. spinute
(Pin)		 13516 Avatar for spinute
35. sksat
(sksat)		 13221 Avatar for sksat
36. susieyy
(yohei sugigami)		 12849 Avatar for susieyy
37. bootjp
(Yoshiaki Ueda (bootjp))		 12617 Avatar for bootjp
38. saltyshiomix
(Shiono Yoshihide)		 12430 Avatar for saltyshiomix
39. touyou
(Fujii Yosuke)		 12369 Avatar for touyou
40. jfbastien
(JF Bastien)		 11952 Avatar for jfbastien
41. shogo82148
(ICHINOSE Shogo)		 11807 Avatar for shogo82148
42. sobri909
(Matt Greenfield)		 11761 Avatar for sobri909
43. coliff
(Christian Oliff)		 11617 Avatar for coliff
44. yamadashy
(Kazuki Yamada)		 11551 Avatar for yamadashy
45. guitarrapc
(Ikiru Yoshizaki)		 11241 Avatar for guitarrapc
46. otiai10
(Hiromu OCHIAI)		 11142 Avatar for otiai10
47. suzuki-shunsuke
(Shunsuke Suzuki)		 10844 Avatar for suzuki-shunsuke
48. hsbt
(Hiroshi SHIBATA)		 10841 Avatar for hsbt
49. 1amageek
(1amageek)		 10724 Avatar for 1amageek
50. privatenumber
(Hiroki Osame)		 10686 Avatar for privatenumber
51. baba-s
(baba_s)		 10291 Avatar for baba-s
52. Code-Hex
(Kei Kamikawa)		 10200 Avatar for Code-Hex
53. toshi0383
(Toshihiro Suzuki)		 10171 Avatar for toshi0383
54. daitomanabe
(Daito Manabe)		 10102 Avatar for daitomanabe
55. lestrrat
(lestrrat)		 9964 Avatar for lestrrat
56. seanchas116
(Ryohei Ikegami)		 9806 Avatar for seanchas116
57. breezewish
(Wish)		 9780 Avatar for breezewish
58. syoyo
(Syoyo Fujita)		 9767 Avatar for syoyo
59. zonuexe
(USAMI Kenta)		 9684 Avatar for zonuexe
60. xuwei-k
(kenji yoshida)		 9663 Avatar for xuwei-k
61. yanorei32
(Ray Yano | あねてあ)		 9570 Avatar for yanorei32
62. sue445
(Go Sueyoshi)		 9453 Avatar for sue445
63. taiki-e
(Taiki Endo)		 9446 Avatar for taiki-e
64. edom18
(edo)		 9365 Avatar for edom18
65. ryota-murakami
(Ryota Murakami)		 9232 Avatar for ryota-murakami
66. morizotter
(Morita Naoki)		 9132 Avatar for morizotter
67. koriym
(Akihito Koriyama)		 9106 Avatar for koriym
68. banyan
(Kohei Hasegawa)		 9076 Avatar for banyan
69. yuya-takeyama
(Yuya Takeyama)		 9045 Avatar for yuya-takeyama
70. EdamAme-x
(EdamAmex)		 9020 Avatar for EdamAme-x
71. retoruto-carry
(れとるときゃりー)		 8789 Avatar for retoruto-carry
72. tekezo
(Takayama Fumihiko)		 8774 Avatar for tekezo
73. laysakura
(Sho Nakatani)		 8747 Avatar for laysakura
74. cutmail
(Tatsuya Arai)		 8698 Avatar for cutmail
75. wadackel
(tsuyoshi wada)		 8634 Avatar for wadackel
76. akameco
(akameco)		 8591 Avatar for akameco
77. matsumotory
(Ryosuke Matsumoto / @matsumotory)		 8464 Avatar for matsumotory
78. ursm
(Keita Urashima)		 8438 Avatar for ursm
79. fukayatsu
(Atsuo Fukaya)		 8437 Avatar for fukayatsu
80. ianlewis
(Ian Lewis)		 8385 Avatar for ianlewis
81. XiaomingX
(Y11)		 8382 Avatar for XiaomingX
82. nateberkopec
(Nate Berkopec)		 8368 Avatar for nateberkopec
83. waylandzhang
(WAYLAND ZHANG)		 8330 Avatar for waylandzhang
84. ngs
(Atsushi NAGASE)		 8193 Avatar for ngs
85. sotarok
(Sotaro Karasawa)		 8131 Avatar for sotarok
86. LumaKernel
(Luma)		 8126 Avatar for LumaKernel
87. hideakitai
(Hideaki Tai)		 8106 Avatar for hideakitai
88. lambdalisue
(Λlisue)		 8078 Avatar for lambdalisue
89. miyako
(Keisuke Miyako)		 7977 Avatar for miyako
90. yug1224
(Yuji Yamaguchi)		 7909 Avatar for yug1224
91. mika-f
(MOCHIZUKI Kanon)		 7892 Avatar for mika-f
92. tkoyama010
(Tetsuo Koyama)		 7797 Avatar for tkoyama010
93. takahirom
(Takahiro Menju)		 7762 Avatar for takahirom
94. yshrsmz
(Yasuhiro SHIMIZU)		 7760 Avatar for yshrsmz
95. kenn
(Kenn Ejima)		 7708 Avatar for kenn
96. ochyai
(Yoichi OCHIAI)		 7664 Avatar for ochyai
97. john-rocky
(Daisuke Majima)		 7636 Avatar for john-rocky
98. Anionix
(ᅟ᠎S⁢ho͏؜Tᅠakaᅟy⁣an︎aᅠg⁡i)		 7592 Avatar for Anionix
99. matz
(Yukihiro "Matz" Matsumoto)		 7558 Avatar for matz
100. champierre
(Junya Ishihara)		 7502 Avatar for champierre
101. wkentaro
(Kentaro Wada)		 7468 Avatar for wkentaro
102. conao3
(Naoya Yamashita)		 7332 Avatar for conao3
103. mpyw
(mpyw)		 7259 Avatar for mpyw
104. ryotarai
(Ryota Arai)		 7219 Avatar for ryotarai
105. xeodou
(xeodou)		 7181 Avatar for xeodou
106. sapphi-red
(翠)		 7142 Avatar for sapphi-red
107. k1LoW
(Ken’ichiro Oyama)		 7116 Avatar for k1LoW
108. timakin
(Seiji Takahashi)		 7115 Avatar for timakin
109. ko1
(Koichi Sasada)		 7089 Avatar for ko1
110. vvakame
(Masahiro Wakame)		 7045 Avatar for vvakame
111. uribo
(Shinya Uryu)		 7033 Avatar for uribo
112. soskek
(Sosuke Kobayashi)		 7021 Avatar for soskek
113. RobertTLange
(Robert Tjarko Lange)		 7010 Avatar for RobertTLange
114. hakatashi
(Koki Takahashi)		 6991 Avatar for hakatashi
115. takuoka
(Takuya Okamoto)		 6927 Avatar for takuoka
116. iebb
(ieb)		 6854 Avatar for iebb
117. mogaming217
(moga)		 6824 Avatar for mogaming217
118. mattatz
(Masatatsu Nakamura)		 6735 Avatar for mattatz
119. zchee
(Koichi Shiraishi)		 6720 Avatar for zchee
120. kexi
(Kei Nakayama)		 6679 Avatar for kexi
121. 2bbb
(2bit)		 6655 Avatar for 2bbb
122. kmizu
(Kota Mizushima)		 6646 Avatar for kmizu
123. Saqoosha
(Saqoosha)		 6639 Avatar for Saqoosha
124. Yesterday17
(Yesterday17)		 6590 Avatar for Yesterday17
125. shu223
(Shuichi Tsutsumi)		 6558 Avatar for shu223
126. kyubuns
(kyubuns)		 6527 Avatar for kyubuns
127. eiel
(HIMURA Tomohiko)		 6507 Avatar for eiel
128. TakuSemba
(TakuSemba)		 6479 Avatar for TakuSemba
129. mattn
(mattn)		 6465 Avatar for mattn
130. akiomik
(Akiomi KAMAKURA)		 6446 Avatar for akiomik
131. hhatto
(Hideo Hattori)		 6438 Avatar for hhatto
132. halogenandtoast
(Matthew Mongeau)		 6414 Avatar for halogenandtoast
133. rob0pup
(Robin)		 6407 Avatar for rob0pup
134. rosylilly
(Sho Kusano)		 6365 Avatar for rosylilly
135. tk0miya
(Takeshi KOMIYA)		 6269 Avatar for tk0miya
136. magurotuna
(Yusuke Tanaka)		 6234 Avatar for magurotuna
137. juno
(Junya Ogura)		 6220 Avatar for juno
138. hajimehoshi
(Hajime Hoshi)		 6214 Avatar for hajimehoshi
139. TimOliver
(Tim Oliver)		 6200 Avatar for TimOliver
140. kawasima
(Yoshitaka Kawashima)		 6168 Avatar for kawasima
141. yuki-kimoto
(Yuki Kimoto)		 6148 Avatar for yuki-kimoto
142. seratch
(Kazuhiro Sera)		 6132 Avatar for seratch
143. whywaita
(Tachibana waita)		 6101 Avatar for whywaita
144. deatiger
(deatiger)		 6089 Avatar for deatiger
145. azu
(azu)		 6020 Avatar for azu
146. dvcrn
(David)		 5980 Avatar for dvcrn
147. miya0001
(Takayuki Miyauchi)		 5973 Avatar for miya0001
148. s-aska
(Shinichiro Aska)		 5962 Avatar for s-aska
149. JohnTitor
(Yuki Okushi)		 5955 Avatar for JohnTitor
150. bmf-san
(Kenta Takeuchi)		 5913 Avatar for bmf-san
151. katahiromz
(Katayama Hirofumi MZ)		 5901 Avatar for katahiromz
152. yujiosaka
(yujiosaka)		 5892 Avatar for yujiosaka
153. mumoshu
(Yusuke Kuoka)		 5844 Avatar for mumoshu
154. sxzz
(Kevin Deng)		 5833 Avatar for sxzz
155. Him188
(Him188)		 5829 Avatar for Him188
156. 3846masa
(Masahiro Miyashiro (3846masa))		 5823 Avatar for 3846masa
157. trust-delta
(trust-delta)		 5781 Avatar for trust-delta
158. hotchpotch
(Yuichi Tateno (secon))		 5775 Avatar for hotchpotch
159. PINTO0309
(Katsuya Hyodo)		 5718 Avatar for PINTO0309
160. wajahat-ali-mir-dev
(Wajahat Ali Mir)		 5692 Avatar for wajahat-ali-mir-dev
161. catnose99
(catnose)		 5686 Avatar for catnose99
162. halsk
(Hal Seki)		 5618 Avatar for halsk
163. guo-yu
(Guo Yu)		 5581 Avatar for guo-yu
164. ogaclejapan
(ogaclejapan)		 5533 Avatar for ogaclejapan
165. onevcat
(Wei Wang)		 5484 Avatar for onevcat
166. sonots
(Naotoshi Seo)		 5474 Avatar for sonots
167. taea
(taea)		 5415 Avatar for taea
168. dennybritz
(Denny Britz)		 5399 Avatar for dennybritz
169. r-plus
(r-plus)		 5351 Avatar for r-plus
170. gfx
(FUJI Goro)		 5315 Avatar for gfx
171. kakutani
(Kakutani Shintaro)		 5295 Avatar for kakutani
172. GalvinGao
(GalvinGao)		 5278 Avatar for GalvinGao
173. hi-ogawa
(Hiroshi Ogawa)		 5273 Avatar for hi-ogawa
174. cxxxr
(cxxxr)		 5247 Avatar for cxxxr
175. hakuturu583
(Masaya Kataoka)		 5229 Avatar for hakuturu583
176. Jannchie
(Jianqi Pan)		 5198 Avatar for Jannchie
177. anchan828
(Keigo Ando)		 5195 Avatar for anchan828
178. Hiroshiba
(Hiroshiba)		 5135 Avatar for Hiroshiba
179. takano32
(TAKANO Mitsuhiro)		 5070 Avatar for takano32
180. Sixeight
(Tomohiro Nishimura)		 5065 Avatar for Sixeight
181. sivchari
(Takuma Shibuya)		 5059 Avatar for sivchari
182. masuidrive
(Yuichiro MASUI)		 5038 Avatar for masuidrive
183. uzulla
(uzulla / Junichi Ishida)		 4994 Avatar for uzulla
184. ykzts
(Yamagishi Kazutoshi)		 4988 Avatar for ykzts
185. nwiizo
(nwiizo)		 4972 Avatar for nwiizo
186. lacolaco
(Suguru Inatomi)		 4948 Avatar for lacolaco
187. dalance
(Naoya Hatta)		 4940 Avatar for dalance
188. peaceiris
(Shohei Ueda)		 4939 Avatar for peaceiris
189. europanite
(europanite)		 4924 Avatar for europanite
190. mirakui
(Issei Naruta)		 4922 Avatar for mirakui
191. sorah
(Sorah Fukumori)		 4919 Avatar for sorah
192. yasulab
(Yohei Yasukawa)		 4912 Avatar for yasulab
193. toshimaru
(Toshimaru)		 4885 Avatar for toshimaru
194. hirokidaichi
(hirokidaichi)		 4879 Avatar for hirokidaichi
195. kazupon
(kazuya kawaguchi)		 4872 Avatar for kazupon
196. AkihiroSuda
(Akihiro Suda)		 4846 Avatar for AkihiroSuda
197. AdingApkgg
(Asuna)		 4841 Avatar for AdingApkgg
198. peppy
(Dean Herbert)		 4807 Avatar for peppy
199. mesqueeb
(Luca Ban)		 4700 Avatar for mesqueeb
200. qwexvf
(Maruchan)		 4663 Avatar for qwexvf
201. takahashim
(Masayoshi Takahashi)		 4648 Avatar for takahashim
202. f0reachARR
(ぐるぐる)		 4634 Avatar for f0reachARR
203. MizukiSonoko
(MIZUKI / Igarashi)		 4615 Avatar for MizukiSonoko
204. dahatake
(Daiyu Hatakeyama)		 4584 Avatar for dahatake
205. inokawa
()		 4534 Avatar for inokawa
206. inductor
(Kohei Ota (inductor))		 4489 Avatar for inductor
207. making
(Toshiaki Maki)		 4474 Avatar for making
208. fujiwara
(FUJIWARA Shunichiro)		 4468 Avatar for fujiwara
209. enliven17
(cankat)		 4449 Avatar for enliven17
210. konojunya
(JJ)		 4417 Avatar for konojunya
211. IloveNooodles
(Muhammad Garebaldhie Er Rahman)		 4403 Avatar for IloveNooodles
212. anatawa12
(anatawa12)		 4371 Avatar for anatawa12
213. koxudaxi
(Koudai Aono)		 4346 Avatar for koxudaxi
214. k0i
(k0i)		 4333 Avatar for k0i
215. sevenc-nanashi
(Nanashi.)		 4312 Avatar for sevenc-nanashi
216. kjj6198
(Kalan)		 4247 Avatar for kjj6198
217. baku89
(Baku Hashimoto)		 4246 Avatar for baku89
218. komagata
(Masaki Komagata)		 4243 Avatar for komagata
219. nov
(Nov Matake)		 4201 Avatar for nov
220. himkt
(himkt)		 4200 Avatar for himkt
221. kou
(Sutou Kouhei)		 4177 Avatar for kou
222. bee-san
(Autumn (Bee))		 4171 Avatar for bee-san
223. ucan-lab
(ucan-lab)		 4169 Avatar for ucan-lab
224. ksoichiro
(Soichiro Kashima)		 4168 Avatar for ksoichiro
225. eltociear
(Ikko Eltociear Ashimine)		 4159 Avatar for eltociear
226. AAkira
(Akira Aratani)		 4141 Avatar for AAkira
227. kamipo
(Ryuta Kamizono)		 4124 Avatar for kamipo
228. motemen
(Hironao OTSUBO)		 4109 Avatar for motemen
229. amatsuda
(Akira Matsuda)		 4061 Avatar for amatsuda
230. Naturalclar
(Jesse Katsumata)		 4053 Avatar for Naturalclar
231. sgr-ksmt
(Suguru Kishimoto)		 3943 Avatar for sgr-ksmt
232. d-date
(Daiki Matsudate)		 3897 Avatar for d-date
233. Watson1978
(Shizuo Fujita)		 3883 Avatar for Watson1978
234. tokorom
(tokorom)		 3880 Avatar for tokorom
235. manju-summoner
(manju summoner)		 3829 Avatar for manju-summoner
236. superbrothers
(Kazuki Suda)		 3819 Avatar for superbrothers
237. drakeet
(Drakeet)		 3818 Avatar for drakeet
238. mashharuki
(Haruki Kondo)		 3804 Avatar for mashharuki
239. takoneko8
(Taiki Kaneko)		 3799 Avatar for takoneko8
240. lightsound
(しまぶー)		 3786 Avatar for lightsound
241. pmq20
(Minqi Pan)		 3783 Avatar for pmq20
242. take-cheeze
(Takeshi Watanabe)		 3771 Avatar for take-cheeze
243. rikusato0
(Riku Sato)		 3745 Avatar for rikusato0
244. cpojer
(Christoph Nakazawa)		 3739 Avatar for cpojer
245. potato4d
(Takuma HANATANI)		 3731 Avatar for potato4d
246. syumai
(syumai)		 3724 Avatar for syumai
247. toastkidjp
(Toast kid)		 3720 Avatar for toastkidjp
248. ynqa
()		 3712 Avatar for ynqa
249. minaminao
(minaminao)		 3697 Avatar for minaminao
250. tmori
(Takashi Mori)		 3697 Avatar for tmori
251. MITSUHIRO-KURIKI
(K.Mitsuhiro)		 3651 Avatar for MITSUHIRO-KURIKI
252. moznion
(moznion)		 3636 Avatar for moznion
253. kadamwhite
(K Adam White)		 3597 Avatar for kadamwhite
254. smorimoto
(Sora Morimoto)		 3592 Avatar for smorimoto
255. koichiro
(Koichiro Ohba)		 3582 Avatar for koichiro
256. heestand-xyz
(Anton Heestand)		 3579 Avatar for heestand-xyz

Organizations

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