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 2025-06-27 12:18:17 +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 121730 total users in the region and you need at least 152 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. baba-s
(baba_s)		 26861 Avatar for baba-s
2. builtinnya
(Naoto Yokoyama)		 20518 Avatar for builtinnya
3. siketyan
(Naoki Ikeguchi)		 14898 Avatar for siketyan
4. bannzai
(bannzai)		 14740 Avatar for bannzai
5. winebarrel
(Genki Sugawara)		 14478 Avatar for winebarrel
6. suzuki-shunsuke
(Shunsuke Suzuki)		 14384 Avatar for suzuki-shunsuke
7. Songmu
(Masayuki Matsuki)		 13866 Avatar for Songmu
8. manman4
()		 12540 Avatar for manman4
9. dev-yakuza
(DeKu)		 11805 Avatar for dev-yakuza
10. saltyshiomix
(Shiono Yoshihide)		 10400 Avatar for saltyshiomix
11. guitarrapc
(Ikiru Yoshizaki)		 9839 Avatar for guitarrapc
12. yuiseki
(yuiseki)		 9556 Avatar for yuiseki
13. shinh
(Shinichiro Hamaji)		 9151 Avatar for shinh
14. yuzushioh
(yuzushioh)		 8902 Avatar for yuzushioh
15. vvakame
(Masahiro Wakame)		 8535 Avatar for vvakame
16. YumNumm
(Ryotaro Onoue)		 8361 Avatar for YumNumm
17. sile
(Takeru Ohta)		 8331 Avatar for sile
18. sanposhiho
(Kensei Nakada)		 8246 Avatar for sanposhiho
19. Coordinate-Cat
(Ocat)		 7995 Avatar for Coordinate-Cat
20. amachang
(Hitoshi Amano)		 7456 Avatar for amachang
21. h3poteto
(AkiraFukushima)		 6960 Avatar for h3poteto
22. syumai
(syumai)		 6854 Avatar for syumai
23. tkoyama010
(Tetsuo Koyama)		 6851 Avatar for tkoyama010
24. peppy
(Dean Herbert)		 6780 Avatar for peppy
25. j5ik2o
(Junichi Kato)		 6762 Avatar for j5ik2o
26. takahirom
(Takahiro Menju)		 6754 Avatar for takahirom
27. kyubuns
(kyubuns)		 6721 Avatar for kyubuns
28. sys1yagi
(Toshihiro Yagi)		 6719 Avatar for sys1yagi
29. sue445
(Go Sueyoshi)		 6646 Avatar for sue445
30. shogo82148
(ICHINOSE Shogo)		 6627 Avatar for shogo82148
31. k-nasa
(nasa)		 6423 Avatar for k-nasa
32. taiki-e
(Taiki Endo)		 6350 Avatar for taiki-e
33. ursm
(Keita Urashima)		 6317 Avatar for ursm
34. sotetsuk
(Sotetsu KOYAMADA)		 6231 Avatar for sotetsuk
35. tnantoka
(Tatsuya Tobioka)		 6053 Avatar for tnantoka
36. azu
(azu)		 5944 Avatar for azu
37. r-plus
(r-plus)		 5800 Avatar for r-plus
38. 3846masa
(Masahiro Miyashiro (3846masa))		 5787 Avatar for 3846masa
39. seanchas116
(Ryohei Ikegami)		 5783 Avatar for seanchas116
40. hajimehoshi
(Hajime Hoshi)		 5722 Avatar for hajimehoshi
41. yuki-kimoto
(Yuki Kimoto)		 5718 Avatar for yuki-kimoto
42. mattatz
(Masatatsu Nakamura)		 5641 Avatar for mattatz
43. inokawa
()		 5535 Avatar for inokawa
44. nov
(Nov Matake)		 5433 Avatar for nov
45. hsbt
(Hiroshi SHIBATA)		 5408 Avatar for hsbt
46. mizzy
(Gosuke Miyashita)		 5397 Avatar for mizzy
47. kou
(Sutou Kouhei)		 5341 Avatar for kou
48. anatawa12
(anatawa12)		 5336 Avatar for anatawa12
49. mika-f
(MOCHIZUKI Natsune)		 5336 Avatar for mika-f
50. sksat
(sksat)		 5292 Avatar for sksat
51. ukonpower
(ukonpower)		 5215 Avatar for ukonpower
52. bokuweb
(bokuweb)		 5179 Avatar for bokuweb
53. AkihiroSuda
(Akihiro Suda)		 5126 Avatar for AkihiroSuda
54. unhappychoice
(Yuji Ueki)		 4988 Avatar for unhappychoice
55. Naturalclar
(Jesse Katsumata)		 4934 Avatar for Naturalclar
56. ogaclejapan
(ogaclejapan)		 4843 Avatar for ogaclejapan
57. nulltask
(Seiya KONNO)		 4796 Avatar for nulltask
58. yasulab
(Yohei Yasukawa)		 4763 Avatar for yasulab
59. hakuturu583
(Masaya Kataoka)		 4671 Avatar for hakuturu583
60. fuyu77
(Kosuke Adachi)		 4655 Avatar for fuyu77
61. ncaq
()		 4613 Avatar for ncaq
62. kateinoigakukun
(Yuta Saito)		 4599 Avatar for kateinoigakukun
63. himkt
(himkt)		 4594 Avatar for himkt
64. bobbens
(Edgar Simo-Serra)		 4587 Avatar for bobbens
65. toshi0383
(Toshihiro Suzuki)		 4585 Avatar for toshi0383
66. akiomik
(Akiomi KAMAKURA)		 4524 Avatar for akiomik
67. banyan
(Kohei Hasegawa)		 4478 Avatar for banyan
68. myuon
(myuon)		 4457 Avatar for myuon
69. XiaomingX
(Y11)		 4425 Avatar for XiaomingX
70. harupy
(Harutaka Kawamura)		 4359 Avatar for harupy
71. Code-Hex
(Kei Kamikawa)		 4333 Avatar for Code-Hex
72. mogaming217
(moga)		 4283 Avatar for mogaming217
73. ryota-murakami
(Ryota Murakami)		 4246 Avatar for ryota-murakami
74. sapphi-red
(翠)		 4231 Avatar for sapphi-red
75. peaceiris
(Shohei Ueda)		 4229 Avatar for peaceiris
76. xuwei-k
(kenji yoshida)		 4201 Avatar for xuwei-k
77. Saul-Mirone
(Mirone)		 4188 Avatar for Saul-Mirone
78. hhatto
(Hideo Hattori)		 4149 Avatar for hhatto
79. yuku
(Yuku Takahashi)		 4100 Avatar for yuku
80. hrsh7th
(hrsh7th)		 4096 Avatar for hrsh7th
81. terasakisatoshi
(Satoshi Terasaki)		 4076 Avatar for terasakisatoshi
82. babarot
(Masaki ISHIYAMA)		 4053 Avatar for babarot
83. hakatashi
(Koki Takahashi)		 4037 Avatar for hakatashi
84. yuwata
(Yu Watanabe)		 4029 Avatar for yuwata
85. wadackel
(tsuyoshi wada)		 4026 Avatar for wadackel
86. nghialv
(nghialv)		 3978 Avatar for nghialv
87. kaiinui
(kaiinui)		 3947 Avatar for kaiinui
88. juno
(Junya Ogura)		 3939 Avatar for juno
89. edom18
(edo)		 3921 Avatar for edom18
90. kenn
(Kenn Ejima)		 3776 Avatar for kenn
91. koriym
(Akihito Koriyama)		 3730 Avatar for koriym
92. k0i
(k0i)		 3723 Avatar for k0i
93. toastkidjp
(Toast kid)		 3687 Avatar for toastkidjp
94. HiroIshida
(Hirokazu Ishida)		 3685 Avatar for HiroIshida
95. zchee
(Koichi Shiraishi)		 3658 Avatar for zchee
96. yanorei32
(Ray Yano | あねてあ)		 3637 Avatar for yanorei32
97. magurotuna
(Yusuke Tanaka)		 3627 Avatar for magurotuna
98. budougumi0617
(Yoichiro Shimizu)		 3618 Avatar for budougumi0617
99. hi-ogawa
(Hiroshi Ogawa)		 3587 Avatar for hi-ogawa
100. superbrothers
(Kazuki Suda)		 3568 Avatar for superbrothers
101. touyou
(Fujii Yosuke)		 3566 Avatar for touyou
102. tk0miya
(Takeshi KOMIYA)		 3560 Avatar for tk0miya
103. izumin5210
(Masayuki Izumi)		 3549 Avatar for izumin5210
104. kishikawakatsumi
(Kishikawa Katsumi)		 3483 Avatar for kishikawakatsumi
105. shufo
(Shuhei Hayashibara)		 3475 Avatar for shufo
106. LISA-KOREA
(Lisa )		 3447 Avatar for LISA-KOREA
107. hiroshisekiya644
(Hiroshi Sekiya)		 3435 Avatar for hiroshisekiya644
108. kentaro
(Kentaro Kuribayashi)		 3425 Avatar for kentaro
109. cpojer
(Christoph Nakazawa)		 3419 Avatar for cpojer
110. shirakaba
(Jamie Birch)		 3405 Avatar for shirakaba
111. ohbarye
(Masato Ohba)		 3383 Avatar for ohbarye
112. lukas-reineke
(Lukas Reineke)		 3381 Avatar for lukas-reineke
113. Saqoosha
(Saqoosha)		 3356 Avatar for Saqoosha
114. p-chan
(P-Chan)		 3355 Avatar for p-chan
115. fumiya-kume
(kuu(Fumiya Kume))		 3344 Avatar for fumiya-kume
116. mtsmfm
(Fumiaki MATSUSHIMA)		 3334 Avatar for mtsmfm
117. tenzen-y
(Yuki Iwai)		 3312 Avatar for tenzen-y
118. yhatt
(Yuki Hattori)		 3285 Avatar for yhatt
119. koxudaxi
(Koudai Aono)		 3270 Avatar for koxudaxi
120. lambdalisue
(Λlisue)		 3269 Avatar for lambdalisue
121. shimat
(shimat)		 3262 Avatar for shimat
122. yyuu
(YAMASHITA, Yuu)		 3261 Avatar for yyuu
123. kt3k
(Yoshiya Hinosawa)		 3226 Avatar for kt3k
124. miyako
(Keisuke Miyako)		 3223 Avatar for miyako
125. making
(Toshiaki Maki)		 3173 Avatar for making
126. hotchpotch
(Yuichi Tateno (secon))		 3147 Avatar for hotchpotch
127. sorairolake
(Shun Sakai)		 3146 Avatar for sorairolake
128. nzws
(Yuzuki Aida)		 3118 Avatar for nzws
129. buchizo
(kosmos.ebi)		 3113 Avatar for buchizo
130. catnose99
(catnose)		 3102 Avatar for catnose99
131. ryohey
(ryohey)		 3102 Avatar for ryohey
132. yowatanabe
(Yoshiyuki Watanabe)		 3092 Avatar for yowatanabe
133. whitphx
(Yuichiro Tachibana (Tsuchiya))		 3075 Avatar for whitphx
134. fukayatsu
(Atsuo Fukaya)		 3062 Avatar for fukayatsu
135. dvcrn
(David)		 3048 Avatar for dvcrn
136. s-aska
(Shinichiro Aska)		 3002 Avatar for s-aska
137. yuya-takeyama
(Yuya Takeyama)		 2998 Avatar for yuya-takeyama
138. a-r-g-v
(Yuki Mukasa ( a_r_g_v ))		 2990 Avatar for a-r-g-v
139. tokorom
(tokorom)		 2974 Avatar for tokorom
140. k1LoW
(Ken’ichiro Oyama)		 2971 Avatar for k1LoW
141. katahiromz
(Katayama Hirofumi MZ)		 2957 Avatar for katahiromz
142. shu223
(Shuichi Tsutsumi)		 2933 Avatar for shu223
143. heestand-xyz
(Anton Heestand)		 2929 Avatar for heestand-xyz
144. hideakitai
(Hideaki Tai)		 2920 Avatar for hideakitai
145. kevinzhow
(Kevin)		 2913 Avatar for kevinzhow
146. sosukesuzuki
(SUZUKI Sosuke)		 2899 Avatar for sosukesuzuki
147. coord-e
(Hiromi Ogawa)		 2885 Avatar for coord-e
148. morizotter
(Morita Naoki)		 2862 Avatar for morizotter
149. champierre
(Junya Ishihara)		 2854 Avatar for champierre
150. p1ass
(Naoki Kishi)		 2832 Avatar for p1ass
151. retoruto-carry
(retoruto-carry)		 2816 Avatar for retoruto-carry
152. fosskers
(Colin Woodbury)		 2804 Avatar for fosskers
153. tarunon
(tarunon)		 2801 Avatar for tarunon
154. glassesfactory
(YAMAGUCHI EIKICHI)		 2794 Avatar for glassesfactory
155. k-takeuchi220
(took)		 2793 Avatar for k-takeuchi220
156. deatiger
(deatiger)		 2793 Avatar for deatiger
157. ubugeeei
(ubugeeei)		 2787 Avatar for ubugeeei
158. ianlewis
(Ian Lewis)		 2768 Avatar for ianlewis
159. h6ah4i
(Haruki Hasegawa)		 2760 Avatar for h6ah4i
160. norbusan
(Norbert Preining)		 2747 Avatar for norbusan
161. lyokato
(Lyo Kato)		 2747 Avatar for lyokato
162. privatenumber
(Hiroki Osame)		 2745 Avatar for privatenumber
163. mob-sakai
(mob-sakai)		 2731 Avatar for mob-sakai
164. ww24
(Takenori Nakagawa)		 2719 Avatar for ww24
165. rjyo
(Rakuraku Jyo)		 2716 Avatar for rjyo
166. fa0311
(ふぁ)		 2705 Avatar for fa0311
167. yamadashy
(Kazuki Yamada)		 2704 Avatar for yamadashy
168. kazupon
(kazuya kawaguchi)		 2697 Avatar for kazupon
169. luvtechno
(Yoshinori Kawasaki)		 2693 Avatar for luvtechno
170. beinteractive
(Yoshihiro Shindo)		 2670 Avatar for beinteractive
171. at-wat
(Atsushi Watanabe)		 2646 Avatar for at-wat
172. uzulla
(uzulla / Junichi Ishida)		 2645 Avatar for uzulla
173. mpyw
(mpyw)		 2638 Avatar for mpyw
174. fujimura
(Daisuke Fujimura)		 2637 Avatar for fujimura
175. smoogipoo
(Dan Balasescu)		 2634 Avatar for smoogipoo
176. mitmul
(Shunta Saito)		 2633 Avatar for mitmul
177. konn
(Hiromi Ishii)		 2622 Avatar for konn
178. mesqueeb
(Luca Ban)		 2615 Avatar for mesqueeb
179. yoshiko-pg
(yoshiko)		 2613 Avatar for yoshiko-pg
180. halogenandtoast
(Matthew Mongeau)		 2596 Avatar for halogenandtoast
181. LumaKernel
(Luma)		 2592 Avatar for LumaKernel
182. akkyie
(Akio Yasui)		 2569 Avatar for akkyie
183. moznion
(moznion)		 2555 Avatar for moznion
184. EdamAme-x
(EdamAmex)		 2547 Avatar for EdamAme-x
185. tmori
(Takashi Mori)		 2533 Avatar for tmori
186. kadamwhite
(K Adam White)		 2531 Avatar for kadamwhite
187. nobu
(Nobuyoshi Nakada)		 2526 Avatar for nobu
188. youtalk
(Yutaka Kondo)		 2518 Avatar for youtalk
189. jinjor
(Yosuke Torii)		 2515 Avatar for jinjor
190. summerwind
(Moto Ishizawa)		 2515 Avatar for summerwind
191. atztogo
(Atsushi Togo)		 2511 Avatar for atztogo
192. p-x9
()		 2503 Avatar for p-x9
193. Jannchie
(Jianqi Pan)		 2499 Avatar for Jannchie
194. muukii
(Hiroshi Kimura)		 2480 Avatar for muukii
195. yutkat
(Yuta Katayama)		 2477 Avatar for yutkat
196. mopp
(mopp)		 2468 Avatar for mopp
197. gongo
(Wataru MIYAGUNI)		 2465 Avatar for gongo
198. sachaos
(Takumasa Sakao)		 2465 Avatar for sachaos
199. mzyy94
(Yuki MIZUNO)		 2462 Avatar for mzyy94
200. osteele
(Oliver Steele)		 2453 Avatar for osteele
201. sotayamashita
(Sam Yamashita)		 2446 Avatar for sotayamashita
202. kotarella1110
(Kotaro Sugawara)		 2425 Avatar for kotarella1110
203. sevenc-nanashi
(Nanashi.)		 2401 Avatar for sevenc-nanashi
204. snoozer05
(SHIMADA Koji)		 2394 Avatar for snoozer05
205. Hiroshiba
(Hiroshiba)		 2388 Avatar for Hiroshiba
206. SphericalKat
(Amogh Lele)		 2387 Avatar for SphericalKat
207. kbinani
(kbinani)		 2377 Avatar for kbinani
208. frandiox
(Fran Dios)		 2367 Avatar for frandiox
209. coliff
(Christian Oliff)		 2364 Avatar for coliff
210. AAkira
(Akira Aratani)		 2352 Avatar for AAkira
211. tatsuhiro-t
(Tatsuhiro Tsujikawa)		 2349 Avatar for tatsuhiro-t
212. anchan828
(Keigo Ando)		 2336 Avatar for anchan828
213. msakai
(Masahiro Sakai)		 2331 Avatar for msakai
214. moriyoshi
(Moriyoshi Koizumi)		 2307 Avatar for moriyoshi
215. tokuhirom
(Tokuhiro Matsuno)		 2307 Avatar for tokuhirom
216. hukusuke1007
(shohei)		 2306 Avatar for hukusuke1007
217. creasty
(Yuki Iwanaga)		 2288 Avatar for creasty
218. Avimitin
(Jiongjia Lu)		 2287 Avatar for Avimitin
219. hitode909
(hitode909)		 2286 Avatar for hitode909
220. c-bata
(c-bata)		 2277 Avatar for c-bata
221. kitao
(Takashi Kitao)		 2264 Avatar for kitao
222. ionicc
(Sagar Vakkala)		 2258 Avatar for ionicc
223. yshrsmz
(Yasuhiro SHIMIZU)		 2256 Avatar for yshrsmz
224. baryon
(LI Long)		 2242 Avatar for baryon
225. mktakuya
(Takuya Mukohira)		 2241 Avatar for mktakuya
226. kmaehashi
(Kenichi Maehashi)		 2239 Avatar for kmaehashi
227. dennybritz
(Denny Britz)		 2238 Avatar for dennybritz
228. Kazuhito00
(KazuhitoTakahashi)		 2237 Avatar for Kazuhito00
229. Haruma-K
(Haruki Yano)		 2236 Avatar for Haruma-K
230. tekezo
(Takayama Fumihiko)		 2231 Avatar for tekezo
231. houko
(Evan Hu)		 2222 Avatar for houko
232. sobri909
(Matt Greenfield)		 2219 Avatar for sobri909
233. 1amageek
(1amageek)		 2219 Avatar for 1amageek
234. simurai
(simurai)		 2219 Avatar for simurai
235. wkentaro
(Kentaro Wada)		 2218 Avatar for wkentaro
236. Comamoca
(Comamoca)		 2217 Avatar for Comamoca
237. koji
(koji)		 2211 Avatar for koji
238. el-hoshino
(Elvis Shi)		 2204 Avatar for el-hoshino
239. tatsuyafujisaki
(Tatsuya Fujisaki)		 2199 Avatar for tatsuyafujisaki
240. zcbenz
(Cheng)		 2198 Avatar for zcbenz
241. bananaappletw
(Weibo Chen)		 2193 Avatar for bananaappletw
242. craftzdog
(Takuya Matsuyama)		 2185 Avatar for craftzdog
243. toptal0212
(ToptalDev)		 2179 Avatar for toptal0212
244. yusukebe
(Yusuke Wada)		 2168 Avatar for yusukebe
245. gkjohnson
(Garrett Johnson)		 2161 Avatar for gkjohnson
246. ufcpp
(Nobuyuki Iwanaga)		 2154 Avatar for ufcpp
247. ktr0731
(ktr)		 2151 Avatar for ktr0731
248. koic
(Koichi ITO)		 2145 Avatar for koic
249. nakasyou
(Shotaro Nakamura)		 2144 Avatar for nakasyou
250. laysakura
(Sho Nakatani)		 2137 Avatar for laysakura
251. amyu
(Yuki Mima)		 2129 Avatar for amyu
252. hatoo
()		 2125 Avatar for hatoo
253. hanachin
(Seiei Miyagi)		 2116 Avatar for hanachin
254. uribo
(Shinya Uryu)		 2114 Avatar for uribo
255. saki4510t
(saki)		 2113 Avatar for saki4510t
256. neka-nat
(Shirokuma (k tanaka))		 2110 Avatar for neka-nat

Organizations

Rank Organization Members
1. potatotips 8
2. pfnet 7
3. oss-gate 4
4. pfnet-research 4
5. conda-forge 4
6. ruby 4
7. chainer 4
8. kubernetes 4
9. jenkinsci 4
10. ukigumo 3