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 2026-07-27 04:21:42 +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 contributions for each user (public & private). There are 139077 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. bannzai
(bannzai)		 98948 Avatar for bannzai
2. kishikawakatsumi
(Kishikawa Katsumi)		 42308 Avatar for kishikawakatsumi
3. terasakisatoshi
(Satoshi Terasaki)		 35847 Avatar for terasakisatoshi
4. MagicalTux
(Mark Karpelès)		 34091 Avatar for MagicalTux
5. atyenoria
(Akinori Nakajima)		 30812 Avatar for atyenoria
6. houko
(Evan)		 27306 Avatar for houko
7. rsasaki0109
(Ryohei Sasaki)		 25230 Avatar for rsasaki0109
8. mizchi
(Kotaro Chikuba)		 22603 Avatar for mizchi
9. unhappychoice
(Yuji Ueki)		 22016 Avatar for unhappychoice
10. j5ik2o
(Junichi Kato)		 21335 Avatar for j5ik2o
11. amachang
(Hitoshi Amano)		 20735 Avatar for amachang
12. yuiseki
(yuiseki)		 20268 Avatar for yuiseki
13. tokuhirom
(Tokuhiro Matsuno)		 19949 Avatar for tokuhirom
14. dev-yakuza
(DeKu)		 18058 Avatar for dev-yakuza
15. Songmu
(Masayuki Matsuki)		 18047 Avatar for Songmu
16. fumiya-kume
(kuu(Fumiya Kume))		 17891 Avatar for fumiya-kume
17. lhl
(Leonard)		 17815 Avatar for lhl
18. mizzy
(Gosuke Miyashita)		 17677 Avatar for mizzy
19. shinh
(Shinichiro Hamaji)		 17622 Avatar for shinh
20. k-takeuchi220
(Katsushi Takeuchi)		 17269 Avatar for k-takeuchi220
21. ThaddeusJiang
(天海 原 / AMAMI Hara)		 15440 Avatar for ThaddeusJiang
22. Coordinate-Cat
(Ocat)		 15300 Avatar for Coordinate-Cat
23. manman4
(manman4)		 15246 Avatar for manman4
24. winebarrel
(Genki Sugawara)		 15185 Avatar for winebarrel
25. harupy
(Harutaka Kawamura)		 14823 Avatar for harupy
26. yuzushioh
(yuzushioh)		 14484 Avatar for yuzushioh
27. babarot
(Masaki ISHIYAMA)		 14285 Avatar for babarot
28. kurone-kito
(Kuroné Kito (黒音キト))		 14279 Avatar for kurone-kito
29. bokuweb
(bokuweb)		 14061 Avatar for bokuweb
30. baba-s
(baba_s)		 13893 Avatar for baba-s
31. siketyan
(Naoki Ikeguchi)		 13271 Avatar for siketyan
32. YumNumm
(Ryotaro Onoue)		 13201 Avatar for YumNumm
33. ubugeeei
(ubugeeei)		 13061 Avatar for ubugeeei
34. spinute
(Pin)		 12550 Avatar for spinute
35. saltyshiomix
(Shiono Yoshihide)		 12269 Avatar for saltyshiomix
36. sksat
(sksat)		 11835 Avatar for sksat
37. sile
(Takeru Ohta)		 11468 Avatar for sile
38. bootjp
(Yoshiaki Ueda (bootjp))		 11440 Avatar for bootjp
39. susieyy
(yohei sugigami)		 11438 Avatar for susieyy
40. touyou
(Fujii Yosuke)		 11225 Avatar for touyou
41. suzuki-shunsuke
(Shunsuke Suzuki)		 10924 Avatar for suzuki-shunsuke
42. shogo82148
(ICHINOSE Shogo)		 10814 Avatar for shogo82148
43. jfbastien
(JF Bastien)		 10489 Avatar for jfbastien
44. yamadashy
(Kazuki Yamada)		 10483 Avatar for yamadashy
45. guitarrapc
(Ikiru Yoshizaki)		 10322 Avatar for guitarrapc
46. coliff
(Christian Oliff)		 10223 Avatar for coliff
47. privatenumber
(Hiroki Osame)		 9954 Avatar for privatenumber
48. hsbt
(Hiroshi SHIBATA)		 9746 Avatar for hsbt
49. xuwei-k
(kenji yoshida)		 9674 Avatar for xuwei-k
50. otiai10
(Hiromu OCHIAI)		 9657 Avatar for otiai10
51. sue445
(Go Sueyoshi)		 9482 Avatar for sue445
52. syoyo
(Syoyo Fujita)		 9479 Avatar for syoyo
53. 1amageek
(1amageek)		 9424 Avatar for 1amageek
54. taiki-e
(Taiki Endo)		 9321 Avatar for taiki-e
55. ryota-murakami
(Ryota Murakami)		 9209 Avatar for ryota-murakami
56. yanorei32
(Ray Yano | あねてあ)		 9165 Avatar for yanorei32
57. seanchas116
(Ryohei Ikegami)		 8777 Avatar for seanchas116
58. lestrrat
(lestrrat)		 8526 Avatar for lestrrat
59. yshrsmz
(Yasuhiro SHIMIZU)		 8501 Avatar for yshrsmz
60. tekezo
(Takayama Fumihiko)		 8457 Avatar for tekezo
61. toshi0383
(Toshihiro Suzuki)		 8383 Avatar for toshi0383
62. fukayatsu
(Atsuo Fukaya)		 8334 Avatar for fukayatsu
63. sobri909
(Matt Greenfield)		 8331 Avatar for sobri909
64. nateberkopec
(Nate Berkopec)		 8202 Avatar for nateberkopec
65. laysakura
(Sho Nakatani)		 8168 Avatar for laysakura
66. daitomanabe
(Daito Manabe)		 8167 Avatar for daitomanabe
67. edom18
(edo)		 8157 Avatar for edom18
68. lambdalisue
(Λlisue)		 8108 Avatar for lambdalisue
69. yuya-takeyama
(Yuya Takeyama)		 8099 Avatar for yuya-takeyama
70. wadackel
(tsuyoshi wada)		 8099 Avatar for wadackel
71. sapphi-red
(翠)		 8014 Avatar for sapphi-red
72. rjyo
(Jo)		 7988 Avatar for rjyo
73. retoruto-carry
(れとるときゃりー)		 7939 Avatar for retoruto-carry
74. yug1224
(Yuji Yamaguchi)		 7816 Avatar for yug1224
75. EdamAme-x
(EdamAmex)		 7773 Avatar for EdamAme-x
76. ianlewis
(Ian Lewis)		 7766 Avatar for ianlewis
77. koriym
(Akihito Koriyama)		 7671 Avatar for koriym
78. akameco
(akameco)		 7661 Avatar for akameco
79. takahirom
(Takahiro Menju)		 7647 Avatar for takahirom
80. zonuexe
(USAMI Kenta)		 7574 Avatar for zonuexe
81. kenn
(Kenn Ejima)		 7571 Avatar for kenn
82. ursm
(Keita Urashima)		 7471 Avatar for ursm
83. breezewish
(Wish)		 7394 Avatar for breezewish
84. conao3
(Naoya Yamashita)		 7388 Avatar for conao3
85. sotarok
(Sotaro Karasawa)		 7361 Avatar for sotarok
86. cutmail
(Tatsuya Arai)		 7358 Avatar for cutmail
87. morizotter
(Morita Naoki)		 7328 Avatar for morizotter
88. ngs
(Atsushi NAGASE)		 7319 Avatar for ngs
89. Anionix
(ᅟ᠎S⁢ho͏؜Tᅠakaᅟy⁣an︎aᅠg⁡i)		 7291 Avatar for Anionix
90. Code-Hex
(Kei Kamikawa)		 7205 Avatar for Code-Hex
91. mika-f
(MOCHIZUKI Kanon)		 7123 Avatar for mika-f
92. k1LoW
(Ken’ichiro Oyama)		 7109 Avatar for k1LoW
93. champierre
(Junya Ishihara)		 7092 Avatar for champierre
94. tkoyama010
(Tetsuo Koyama)		 7055 Avatar for tkoyama010
95. matsumotory
(Ryosuke Matsumoto / @matsumotory)		 7036 Avatar for matsumotory
96. miyako
(Keisuke Miyako)		 7022 Avatar for miyako
97. vvakame
(Masahiro Wakame)		 7019 Avatar for vvakame
98. banyan
(Kohei Hasegawa)		 7018 Avatar for banyan
99. waylandzhang
(WAYLAND ZHANG)		 6970 Avatar for waylandzhang
100. hideakitai
(Hideaki Tai)		 6868 Avatar for hideakitai
101. rob0pup
(Robin)		 6810 Avatar for rob0pup
102. mattatz
(Masatatsu Nakamura)		 6695 Avatar for mattatz
103. wkentaro
(Kentaro Wada)		 6512 Avatar for wkentaro
104. XiaomingX
(Y11)		 6510 Avatar for XiaomingX
105. timakin
(Seiji Takahashi)		 6500 Avatar for timakin
106. ko1
(Koichi Sasada)		 6495 Avatar for ko1
107. matz
(Yukihiro "Matz" Matsumoto)		 6489 Avatar for matz
108. LumaKernel
(Luma)		 6476 Avatar for LumaKernel
109. hakatashi
(Koki Takahashi)		 6386 Avatar for hakatashi
110. xeodou
(xeodou)		 6303 Avatar for xeodou
111. hhatto
(Hideo Hattori)		 6230 Avatar for hhatto
112. azu
(azu)		 6201 Avatar for azu
113. TakuSemba
(TakuSemba)		 6163 Avatar for TakuSemba
114. ochyai
(Yoichi OCHIAI)		 6125 Avatar for ochyai
115. mattn
(mattn)		 6091 Avatar for mattn
116. hajimehoshi
(Hajime Hoshi)		 6083 Avatar for hajimehoshi
117. sxzz
(Kevin Deng)		 6083 Avatar for sxzz
118. Saqoosha
(Saqoosha)		 6081 Avatar for Saqoosha
119. rosylilly
(Sho Kusano)		 6059 Avatar for rosylilly
120. yuki-kimoto
(Yuki Kimoto)		 6052 Avatar for yuki-kimoto
121. john-rocky
(Daisuke Majima)		 6038 Avatar for john-rocky
122. mpyw
(mpyw)		 6025 Avatar for mpyw
123. RobertTLange
(Robert Tjarko Lange)		 5995 Avatar for RobertTLange
124. uribo
(Shinya Uryu)		 5947 Avatar for uribo
125. kyubuns
(kyubuns)		 5932 Avatar for kyubuns
126. iebb
(ieb)		 5911 Avatar for iebb
127. kexi
(Kei Nakayama)		 5910 Avatar for kexi
128. magurotuna
(Yusuke Tanaka)		 5836 Avatar for magurotuna
129. dvcrn
(David)		 5829 Avatar for dvcrn
130. eiel
(HIMURA Tomohiko)		 5827 Avatar for eiel
131. mogaming217
(moga)		 5823 Avatar for mogaming217
132. juno
(Junya Ogura)		 5780 Avatar for juno
133. katahiromz
(Katayama Hirofumi MZ)		 5728 Avatar for katahiromz
134. wajahat-ali-mir-dev
(Wajahat Ali Mir)		 5692 Avatar for wajahat-ali-mir-dev
135. shu223
(Shuichi Tsutsumi)		 5682 Avatar for shu223
136. 2bbb
(2bit)		 5681 Avatar for 2bbb
137. tk0miya
(Takeshi KOMIYA)		 5668 Avatar for tk0miya
138. catnose99
(catnose)		 5664 Avatar for catnose99
139. 3846masa
(Masahiro Miyashiro (3846masa))		 5621 Avatar for 3846masa
140. TimOliver
(Tim Oliver)		 5589 Avatar for TimOliver
141. PINTO0309
(Katsuya Hyodo)		 5588 Avatar for PINTO0309
142. akiomik
(Akiomi KAMAKURA)		 5588 Avatar for akiomik
143. deatiger
(deatiger)		 5584 Avatar for deatiger
144. guo-yu
(Guo Yu)		 5578 Avatar for guo-yu
145. bmf-san
(Kenta Takeuchi)		 5565 Avatar for bmf-san
146. JohnTitor
(Yuki Okushi)		 5559 Avatar for JohnTitor
147. ogaclejapan
(ogaclejapan)		 5553 Avatar for ogaclejapan
148. Him188
(Him188)		 5431 Avatar for Him188
149. hotchpotch
(Yuichi Tateno (secon))		 5372 Avatar for hotchpotch
150. ryotarai
(Ryota Arai)		 5371 Avatar for ryotarai
151. seratch
(Kazuhiro Sera)		 5356 Avatar for seratch
152. anchan828
(Keigo Ando)		 5321 Avatar for anchan828
153. cxxxr
(cxxxr)		 5320 Avatar for cxxxr
154. r-plus
(r-plus)		 5311 Avatar for r-plus
155. mumoshu
(Yusuke Kuoka)		 5280 Avatar for mumoshu
156. onevcat
(Wei Wang)		 5239 Avatar for onevcat
157. yasulab
(Yohei Yasukawa)		 5220 Avatar for yasulab
158. kmizu
(Kota Mizushima)		 5202 Avatar for kmizu
159. hakuturu583
(Masaya Kataoka)		 5201 Avatar for hakuturu583
160. Yesterday17
(Yesterday17)		 5162 Avatar for Yesterday17
161. hi-ogawa
(Hiroshi Ogawa)		 5160 Avatar for hi-ogawa
162. trust-delta
(trust-delta)		 5132 Avatar for trust-delta
163. soskek
(Sosuke Kobayashi)		 5122 Avatar for soskek
164. halsk
(Hal Seki)		 5116 Avatar for halsk
165. dennybritz
(Denny Britz)		 5089 Avatar for dennybritz
166. halogenandtoast
(Matthew Mongeau)		 5025 Avatar for halogenandtoast
167. hirokidaichi
(hirokidaichi)		 4934 Avatar for hirokidaichi
168. europanite
(europanite)		 4895 Avatar for europanite
169. takuoka
(Takuya Okamoto)		 4869 Avatar for takuoka
170. gfx
(FUJI Goro)		 4860 Avatar for gfx
171. nwiizo
(nwiizo)		 4858 Avatar for nwiizo
172. lacolaco
(Suguru Inatomi)		 4785 Avatar for lacolaco
173. Hiroshiba
(Hiroshiba)		 4781 Avatar for Hiroshiba
174. AkihiroSuda
(Akihiro Suda)		 4744 Avatar for AkihiroSuda
175. taea
(taea)		 4739 Avatar for taea
176. masuidrive
(Yuichiro MASUI)		 4700 Avatar for masuidrive
177. AdingApkgg
(Asuna)		 4699 Avatar for AdingApkgg
178. s-aska
(Shinichiro Aska)		 4698 Avatar for s-aska
179. GalvinGao
(GalvinGao)		 4677 Avatar for GalvinGao
180. sorah
(Sorah Fukumori)		 4656 Avatar for sorah
181. mesqueeb
(Luca Ban)		 4655 Avatar for mesqueeb
182. ykzts
(Yamagishi Kazutoshi)		 4610 Avatar for ykzts
183. dalance
(Naoya Hatta)		 4592 Avatar for dalance
184. uzulla
(uzulla / Junichi Ishida)		 4581 Avatar for uzulla
185. Jannchie
(Jianqi Pan)		 4559 Avatar for Jannchie
186. kazupon
(kazuya kawaguchi)		 4545 Avatar for kazupon
187. toshimaru
(Toshimaru)		 4539 Avatar for toshimaru
188. inokawa
()		 4500 Avatar for inokawa
189. Sixeight
(Tomohiro Nishimura)		 4491 Avatar for Sixeight
190. zchee
(Koichi Shiraishi)		 4478 Avatar for zchee
191. dahatake
(Daiyu Hatakeyama)		 4456 Avatar for dahatake
192. MizukiSonoko
(MIZUKI / Igarashi)		 4369 Avatar for MizukiSonoko
193. k0i
(k0i)		 4355 Avatar for k0i
194. miya0001
(Takayuki Miyauchi)		 4339 Avatar for miya0001
195. IloveNooodles
(Muhammad Garebaldhie Er Rahman)		 4300 Avatar for IloveNooodles
196. sevenc-nanashi
(Nanashi.)		 4291 Avatar for sevenc-nanashi
197. konojunya
(JJ)		 4263 Avatar for konojunya
198. kou
(Sutou Kouhei)		 4217 Avatar for kou
199. peaceiris
(Shohei Ueda)		 4215 Avatar for peaceiris
200. anatawa12
(anatawa12)		 4206 Avatar for anatawa12
201. mirakui
(Issei Naruta)		 4203 Avatar for mirakui
202. nov
(Nov Matake)		 4167 Avatar for nov
203. f0reachARR
(ぐるぐる)		 4150 Avatar for f0reachARR
204. peppy
(Dean Herbert)		 4149 Avatar for peppy
205. koxudaxi
(Koudai Aono)		 4139 Avatar for koxudaxi
206. komagata
(Masaki Komagata)		 4113 Avatar for komagata
207. kjj6198
(Kalan)		 4110 Avatar for kjj6198
208. ksoichiro
(Soichiro Kashima)		 4103 Avatar for ksoichiro
209. fujiwara
(FUJIWARA Shunichiro)		 4083 Avatar for fujiwara
210. kakutani
(Kakutani Shintaro)		 4058 Avatar for kakutani
211. pmq20
(Minqi Pan)		 4055 Avatar for pmq20
212. amatsuda
(Akira Matsuda)		 4054 Avatar for amatsuda
213. baku89
(Baku Hashimoto)		 4044 Avatar for baku89
214. enliven17
(cankat)		 4026 Avatar for enliven17
215. ucan-lab
(ucan-lab)		 3873 Avatar for ucan-lab
216. AAkira
(Akira Aratani)		 3871 Avatar for AAkira
217. kamipo
(Ryuta Kamizono)		 3847 Avatar for kamipo
218. tokorom
(tokorom)		 3835 Avatar for tokorom
219. sgr-ksmt
(Suguru Kishimoto)		 3814 Avatar for sgr-ksmt
220. qwexvf
(Maruchan)		 3787 Avatar for qwexvf
221. superbrothers
(Kazuki Suda)		 3760 Avatar for superbrothers
222. cpojer
(Christoph Nakazawa)		 3707 Avatar for cpojer
223. yujiosaka
(yujiosaka)		 3688 Avatar for yujiosaka
224. bee-san
(Autumn (Bee))		 3685 Avatar for bee-san
225. toastkidjp
(Toast kid)		 3678 Avatar for toastkidjp
226. takahashim
(Masayoshi Takahashi)		 3664 Avatar for takahashim
227. ynqa
()		 3663 Avatar for ynqa
228. syumai
(syumai)		 3657 Avatar for syumai
229. m3m0r7
(memory)		 3641 Avatar for m3m0r7
230. nghialv
(nghialv)		 3621 Avatar for nghialv
231. making
(Toshiaki Maki)		 3582 Avatar for making
232. mashharuki
(Haruki Kondo)		 3576 Avatar for mashharuki
233. MITSUHIRO-KURIKI
(K.Mitsuhiro)		 3560 Avatar for MITSUHIRO-KURIKI
234. himkt
(himkt)		 3560 Avatar for himkt
235. davetang
(Dave Tang)		 3530 Avatar for davetang
236. udzura
(Kondo Uchio)		 3525 Avatar for udzura
237. bobbens
(Edgar Simo-Serra)		 3520 Avatar for bobbens
238. h6ah4i
(Haruki Hasegawa)		 3461 Avatar for h6ah4i
239. smorimoto
(Sora Morimoto)		 3461 Avatar for smorimoto
240. inductor
(Kohei Ota (inductor))		 3439 Avatar for inductor
241. wasabeef
(Daichi Furiya)		 3429 Avatar for wasabeef
242. p-x9
()		 3419 Avatar for p-x9
243. eltociear
(Ikko Eltociear Ashimine)		 3397 Avatar for eltociear
244. haqishen
(haqishen)		 3391 Avatar for haqishen
245. minaminao
(minaminao)		 3380 Avatar for minaminao
246. kawasima
(Yoshitaka Kawashima)		 3363 Avatar for kawasima
247. kadamwhite
(K Adam White)		 3359 Avatar for kadamwhite
248. heestand-xyz
(Anton Heestand)		 3342 Avatar for heestand-xyz
249. marty-suzuki
(Taiki Suzuki)		 3334 Avatar for marty-suzuki
250. satoruhiga
(Satoru Higa)		 3332 Avatar for satoruhiga
251. koji
(koji)		 3290 Avatar for koji
252. sonots
(Naotoshi Seo)		 3284 Avatar for sonots
253. shin1x1
(Masashi Shinbara)		 3281 Avatar for shin1x1
254. drakeet
(Drakeet)		 3279 Avatar for drakeet
255. shimbaco
(Shimba, Koji)		 3269 Avatar for shimbaco
256. potato4d
(Takuma HANATANI)		 3254 Avatar for potato4d

Organizations

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