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 2025-05-18 12:18:26 +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 120170 total users in the region and you need at least 153 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)		 23923 Avatar for baba-s
2. builtinnya
(Naoto Yokoyama)		 20635 Avatar for builtinnya
3. siketyan
(Naoki Ikeguchi)		 14926 Avatar for siketyan
4. bannzai
(bannzai)		 14486 Avatar for bannzai
5. suzuki-shunsuke
(Shunsuke Suzuki)		 14303 Avatar for suzuki-shunsuke
6. winebarrel
(Genki Sugawara)		 13933 Avatar for winebarrel
7. Songmu
(Masayuki Matsuki)		 12064 Avatar for Songmu
8. dev-yakuza
(DeKu)		 11962 Avatar for dev-yakuza
9. saltyshiomix
(Shiono Yoshihide)		 10448 Avatar for saltyshiomix
10. shinh
(Shinichiro Hamaji)		 10035 Avatar for shinh
11. guitarrapc
(Ikiru Yoshizaki)		 9970 Avatar for guitarrapc
12. yuiseki
(yuiseki)		 9904 Avatar for yuiseki
13. vvakame
(Masahiro Wakame)		 8750 Avatar for vvakame
14. sanposhiho
(Kensei Nakada)		 8332 Avatar for sanposhiho
15. yuzushioh
(yuzushioh)		 8165 Avatar for yuzushioh
16. YumNumm
(Ryotaro Onoue)		 8103 Avatar for YumNumm
17. sile
(Takeru Ohta)		 8095 Avatar for sile
18. taiki-e
(Taiki Endo)		 7531 Avatar for taiki-e
19. Coordinate-Cat
(Ocat)		 7343 Avatar for Coordinate-Cat
20. sue445
(Go Sueyoshi)		 7213 Avatar for sue445
21. shogo82148
(ICHINOSE Shogo)		 7070 Avatar for shogo82148
22. syumai
(syumai)		 6924 Avatar for syumai
23. sotetsuk
(Sotetsu KOYAMADA)		 6868 Avatar for sotetsuk
24. j5ik2o
(Junichi Kato)		 6825 Avatar for j5ik2o
25. h3poteto
(AkiraFukushima)		 6681 Avatar for h3poteto
26. steelydylan
(Hori Godai)		 6581 Avatar for steelydylan
27. tkoyama010
(Tetsuo Koyama)		 6556 Avatar for tkoyama010
28. sys1yagi
(Toshihiro Yagi)		 6533 Avatar for sys1yagi
29. ursm
(Keita Urashima)		 6515 Avatar for ursm
30. peppy
(Dean Herbert)		 6511 Avatar for peppy
31. takahirom
(Takahiro Menju)		 6411 Avatar for takahirom
32. kyubuns
(kyubuns)		 6309 Avatar for kyubuns
33. tnantoka
(Tatsuya Tobioka)		 6150 Avatar for tnantoka
34. inokawa
()		 5939 Avatar for inokawa
35. r-plus
(r-plus)		 5906 Avatar for r-plus
36. yuki-kimoto
(Yuki Kimoto)		 5756 Avatar for yuki-kimoto
37. mattatz
(Masatatsu Nakamura)		 5745 Avatar for mattatz
38. mizzy
(Gosuke Miyashita)		 5736 Avatar for mizzy
39. hajimehoshi
(Hajime Hoshi)		 5724 Avatar for hajimehoshi
40. azu
(azu)		 5641 Avatar for azu
41. mika-f
(MOCHIZUKI Natsune)		 5604 Avatar for mika-f
42. k-nasa
(nasa)		 5590 Avatar for k-nasa
43. anatawa12
(anatawa12)		 5539 Avatar for anatawa12
44. 3846masa
(Masahiro Miyashiro (3846masa))		 5361 Avatar for 3846masa
45. sksat
(sksat)		 5263 Avatar for sksat
46. nov
(Nov Matake)		 5261 Avatar for nov
47. kou
(Sutou Kouhei)		 5214 Avatar for kou
48. amachang
(Hitoshi Amano)		 5194 Avatar for amachang
49. bokuweb
(bokuweb)		 5143 Avatar for bokuweb
50. AkihiroSuda
(Akihiro Suda)		 5130 Avatar for AkihiroSuda
51. hsbt
(Hiroshi SHIBATA)		 5084 Avatar for hsbt
52. toshi0383
(Toshihiro Suzuki)		 5060 Avatar for toshi0383
53. ogaclejapan
(ogaclejapan)		 4929 Avatar for ogaclejapan
54. seanchas116
(Ryohei Ikegami)		 4767 Avatar for seanchas116
55. himkt
(himkt)		 4767 Avatar for himkt
56. banyan
(Kohei Hasegawa)		 4753 Avatar for banyan
57. hakuturu583
(Masaya Kataoka)		 4749 Avatar for hakuturu583
58. akiomik
(Akiomi KAMAKURA)		 4737 Avatar for akiomik
59. nulltask
(Seiya KONNO)		 4582 Avatar for nulltask
60. Code-Hex
(Kei Kamikawa)		 4511 Avatar for Code-Hex
61. Naturalclar
(Jesse Katsumata)		 4495 Avatar for Naturalclar
62. bobbens
(Edgar Simo-Serra)		 4378 Avatar for bobbens
63. peaceiris
(Shohei Ueda)		 4265 Avatar for peaceiris
64. hrsh7th
(hrsh7th)		 4252 Avatar for hrsh7th
65. ryota-murakami
(Ryota Murakami)		 4232 Avatar for ryota-murakami
66. harupy
(Harutaka Kawamura)		 4226 Avatar for harupy
67. mogaming217
(moga)		 4190 Avatar for mogaming217
68. koriym
(Akihito Koriyama)		 4182 Avatar for koriym
69. myuon
(myuon)		 4146 Avatar for myuon
70. unhappychoice
(Yuji Ueki)		 4129 Avatar for unhappychoice
71. yuku
(Yuku Takahashi)		 4114 Avatar for yuku
72. XiaomingX
(Y11)		 4108 Avatar for XiaomingX
73. kateinoigakukun
(Yuta Saito)		 4097 Avatar for kateinoigakukun
74. yuwata
(Yu Watanabe)		 4040 Avatar for yuwata
75. sapphi-red
(翠)		 4015 Avatar for sapphi-red
76. xuwei-k
(kenji yoshida)		 3968 Avatar for xuwei-k
77. yasulab
(Yohei Yasukawa)		 3939 Avatar for yasulab
78. hakatashi
(Koki Takahashi)		 3910 Avatar for hakatashi
79. terasakisatoshi
(Satoshi Terasaki)		 3874 Avatar for terasakisatoshi
80. Saul-Mirone
(Mirone)		 3824 Avatar for Saul-Mirone
81. ncaq
()		 3814 Avatar for ncaq
82. babarot
(Masaki ISHIYAMA)		 3802 Avatar for babarot
83. touyou
(Fujii Yosuke)		 3802 Avatar for touyou
84. wadackel
(tsuyoshi wada)		 3794 Avatar for wadackel
85. izumin5210
(Masayuki Izumi)		 3792 Avatar for izumin5210
86. nghialv
(nghialv)		 3773 Avatar for nghialv
87. zchee
(Koichi Shiraishi)		 3751 Avatar for zchee
88. juno
(Junya Ogura)		 3747 Avatar for juno
89. k0i
(k0i)		 3719 Avatar for k0i
90. making
(Toshiaki Maki)		 3715 Avatar for making
91. toastkidjp
(Toast kid)		 3706 Avatar for toastkidjp
92. conao3
(Naoya Yamashita)		 3677 Avatar for conao3
93. edom18
(edo)		 3668 Avatar for edom18
94. fuyu77
(Kosuke Adachi)		 3658 Avatar for fuyu77
95. yanorei32
(Ray Yano | あねてあ)		 3645 Avatar for yanorei32
96. superbrothers
(Kazuki Suda)		 3580 Avatar for superbrothers
97. HiroIshida
(Hirokazu Ishida)		 3570 Avatar for HiroIshida
98. kishikawakatsumi
(Kishikawa Katsumi)		 3565 Avatar for kishikawakatsumi
99. p-chan
(P-Chan)		 3560 Avatar for p-chan
100. LISA-KOREA
(Lisa )		 3557 Avatar for LISA-KOREA
101. kt3k
(Yoshiya Hinosawa)		 3498 Avatar for kt3k
102. tk0miya
(Takeshi KOMIYA)		 3498 Avatar for tk0miya
103. hi-ogawa
(Hiroshi Ogawa)		 3481 Avatar for hi-ogawa
104. magurotuna
(Yusuke Tanaka)		 3465 Avatar for magurotuna
105. hiroshisekiya644
(Hiroshi Sekiya)		 3447 Avatar for hiroshisekiya644
106. shimat
(shimat)		 3434 Avatar for shimat
107. mesqueeb
(Luca Ban)		 3404 Avatar for mesqueeb
108. budougumi0617
(Yoichiro Shimizu)		 3383 Avatar for budougumi0617
109. kentaro
(Kentaro Kuribayashi)		 3382 Avatar for kentaro
110. kaiinui
(kaiinui)		 3359 Avatar for kaiinui
111. kenn
(Kenn Ejima)		 3350 Avatar for kenn
112. lukas-reineke
(Lukas Reineke)		 3321 Avatar for lukas-reineke
113. yhatt
(Yuki Hattori)		 3308 Avatar for yhatt
114. ohbarye
(Masato Ohba)		 3300 Avatar for ohbarye
115. tarunon
(tarunon)		 3294 Avatar for tarunon
116. sorairolake
(Shun Sakai)		 3281 Avatar for sorairolake
117. koxudaxi
(Koudai Aono)		 3281 Avatar for koxudaxi
118. shirakaba
(Jamie Birch)		 3249 Avatar for shirakaba
119. mtsmfm
(Fumiaki MATSUSHIMA)		 3245 Avatar for mtsmfm
120. yuya-takeyama
(Yuya Takeyama)		 3235 Avatar for yuya-takeyama
121. nzws
(Yuzuki Aida)		 3231 Avatar for nzws
122. hhatto
(Hideo Hattori)		 3210 Avatar for hhatto
123. hideakitai
(Hideaki Tai)		 3205 Avatar for hideakitai
124. buchizo
(kosmos.ebi)		 3169 Avatar for buchizo
125. k1LoW
(Ken’ichiro Oyama)		 3168 Avatar for k1LoW
126. lyokato
(Lyo Kato)		 3162 Avatar for lyokato
127. tokorom
(tokorom)		 3151 Avatar for tokorom
128. h6ah4i
(Haruki Hasegawa)		 3148 Avatar for h6ah4i
129. ryohey
(ryohey)		 3129 Avatar for ryohey
130. cpojer
(Christoph Nakazawa)		 3113 Avatar for cpojer
131. hotchpotch
(Yuichi Tateno (secon))		 3098 Avatar for hotchpotch
132. ufcpp
(Nobuyuki Iwanaga)		 3095 Avatar for ufcpp
133. yyuu
(YAMASHITA, Yuu)		 3044 Avatar for yyuu
134. whitphx
(Yuichiro Tachibana (Tsuchiya))		 3018 Avatar for whitphx
135. kevinzhow
(Kevin)		 3006 Avatar for kevinzhow
136. yowatanabe
(Yoshiyuki Watanabe)		 2998 Avatar for yowatanabe
137. miyako
(Keisuke Miyako)		 2968 Avatar for miyako
138. catnose99
(catnose)		 2965 Avatar for catnose99
139. katahiromz
(Katayama Hirofumi MZ)		 2960 Avatar for katahiromz
140. privatenumber
(Hiroki Osame)		 2930 Avatar for privatenumber
141. champierre
(Junya Ishihara)		 2915 Avatar for champierre
142. konn
(Hiromi Ishii)		 2892 Avatar for konn
143. s-aska
(Shinichiro Aska)		 2890 Avatar for s-aska
144. fosskers
(Colin Woodbury)		 2814 Avatar for fosskers
145. a-r-g-v
(Yuki Mukasa ( a_r_g_v ))		 2808 Avatar for a-r-g-v
146. heestand-xyz
(Anton Heestand)		 2804 Avatar for heestand-xyz
147. lambdalisue
(Λlisue)		 2793 Avatar for lambdalisue
148. k-takeuchi220
(took)		 2784 Avatar for k-takeuchi220
149. ubugeeei
(ubugeeei)		 2777 Avatar for ubugeeei
150. fukayatsu
(Atsuo Fukaya)		 2762 Avatar for fukayatsu
151. at-wat
(Atsushi Watanabe)		 2757 Avatar for at-wat
152. beinteractive
(Yoshihiro Shindo)		 2755 Avatar for beinteractive
153. toptal0212
(ToptalDev)		 2746 Avatar for toptal0212
154. kazupon
(kazuya kawaguchi)		 2722 Avatar for kazupon
155. EdamAme-x
(EdamAmex)		 2709 Avatar for EdamAme-x
156. uzulla
(uzulla / Junichi Ishida)		 2676 Avatar for uzulla
157. mopp
(mopp)		 2666 Avatar for mopp
158. smoogipoo
(Dan Balasescu)		 2648 Avatar for smoogipoo
159. mitmul
(Shunta Saito)		 2628 Avatar for mitmul
160. mpyw
(mpyw)		 2622 Avatar for mpyw
161. tmori
(Takashi Mori)		 2614 Avatar for tmori
162. yutkat
(Yuta Katayama)		 2606 Avatar for yutkat
163. summerwind
(Moto Ishizawa)		 2605 Avatar for summerwind
164. deatiger
(deatiger)		 2586 Avatar for deatiger
165. creasty
(Yuki Iwanaga)		 2584 Avatar for creasty
166. mob-sakai
(mob-sakai)		 2572 Avatar for mob-sakai
167. shu223
(Shuichi Tsutsumi)		 2571 Avatar for shu223
168. rjyo
(Rakuraku Jyo)		 2561 Avatar for rjyo
169. p1ass
(Naoki Kishi)		 2554 Avatar for p1ass
170. morizotter
(Morita Naoki)		 2548 Avatar for morizotter
171. norbusan
(Norbert Preining)		 2543 Avatar for norbusan
172. sevenc-nanashi
(Nanashi.)		 2543 Avatar for sevenc-nanashi
173. p-x9
()		 2528 Avatar for p-x9
174. kadamwhite
(K Adam White)		 2528 Avatar for kadamwhite
175. nobu
(Nobuyoshi Nakada)		 2527 Avatar for nobu
176. coord-e
(Hiromi Ogawa)		 2525 Avatar for coord-e
177. youtalk
(Yutaka Kondo)		 2522 Avatar for youtalk
178. mzyy94
(Yuki MIZUNO)		 2488 Avatar for mzyy94
179. Hiroshiba
(Hiroshiba)		 2488 Avatar for Hiroshiba
180. fa0311
(ふぁ)		 2487 Avatar for fa0311
181. hitode909
(hitode909)		 2465 Avatar for hitode909
182. Saqoosha
(Saqoosha)		 2455 Avatar for Saqoosha
183. ianlewis
(Ian Lewis)		 2452 Avatar for ianlewis
184. jinjor
(Yosuke Torii)		 2448 Avatar for jinjor
185. glassesfactory
(YAMAGUCHI EIKICHI)		 2447 Avatar for glassesfactory
186. akueisara
(Kuei-Jung Hu)		 2440 Avatar for akueisara
187. sosukesuzuki
(SUZUKI Sosuke)		 2438 Avatar for sosukesuzuki
188. muukii
(Hiroshi Kimura)		 2437 Avatar for muukii
189. osteele
(Oliver Steele)		 2433 Avatar for osteele
190. yoshiko-pg
(yoshiko)		 2431 Avatar for yoshiko-pg
191. atztogo
(Atsushi Togo)		 2416 Avatar for atztogo
192. tokuhirom
(Tokuhiro Matsuno)		 2415 Avatar for tokuhirom
193. saki4510t
(saki)		 2411 Avatar for saki4510t
194. halogenandtoast
(Matthew Mongeau)		 2395 Avatar for halogenandtoast
195. sotayamashita
(Sam Yamashita)		 2393 Avatar for sotayamashita
196. LumaKernel
(Luma)		 2378 Avatar for LumaKernel
197. SphericalKat
(Amogh Lele)		 2377 Avatar for SphericalKat
198. msakai
(Masahiro Sakai)		 2370 Avatar for msakai
199. AAkira
(Akira Aratani)		 2369 Avatar for AAkira
200. ionicc
(Sagar Vakkala)		 2363 Avatar for ionicc
201. kbinani
(kbinani)		 2362 Avatar for kbinani
202. frandiox
(Fran Dios)		 2361 Avatar for frandiox
203. gongo
(Wataru MIYAGUNI)		 2361 Avatar for gongo
204. retoruto-carry
(retoruto-carry)		 2359 Avatar for retoruto-carry
205. sachaos
(Takumasa Sakao)		 2337 Avatar for sachaos
206. baryon
(LI Long)		 2324 Avatar for baryon
207. Avimitin
(Jiongjia Lu)		 2314 Avatar for Avimitin
208. Jannchie
(Jianqi Pan)		 2292 Avatar for Jannchie
209. kitao
(Takashi Kitao)		 2289 Avatar for kitao
210. fumiya-kume
(kuu(Fumiya Kume))		 2281 Avatar for fumiya-kume
211. mktakuya
(Takuya Mukohira)		 2281 Avatar for mktakuya
212. gkjohnson
(Garrett Johnson)		 2280 Avatar for gkjohnson
213. tekezo
(Takayama Fumihiko)		 2272 Avatar for tekezo
214. hatoo
()		 2269 Avatar for hatoo
215. amyu
(Yuki Mima)		 2252 Avatar for amyu
216. nakasyou
(Shotaro Nakamura)		 2244 Avatar for nakasyou
217. yusukebe
(Yusuke Wada)		 2244 Avatar for yusukebe
218. moemoe89
(Bismo Baruno)		 2244 Avatar for moemoe89
219. moznion
(moznion)		 2241 Avatar for moznion
220. yshrsmz
(Yasuhiro SHIMIZU)		 2237 Avatar for yshrsmz
221. r7kamura
(Ryo Nakamura)		 2237 Avatar for r7kamura
222. tatsuyafujisaki
(Tatsuya Fujisaki)		 2237 Avatar for tatsuyafujisaki
223. uribo
(Shinya Uryu)		 2231 Avatar for uribo
224. dai-shi
(Daishi Kato)		 2228 Avatar for dai-shi
225. kotarella1110
(Kotaro Sugawara)		 2227 Avatar for kotarella1110
226. hutajoullach
(Huta Joullach)		 2225 Avatar for hutajoullach
227. snoozer05
(SHIMADA Koji)		 2215 Avatar for snoozer05
228. ktr0731
(ktr)		 2213 Avatar for ktr0731
229. moriyoshi
(Moriyoshi Koizumi)		 2210 Avatar for moriyoshi
230. bananaappletw
(Weibo Chen)		 2190 Avatar for bananaappletw
231. c-bata
(c-bata)		 2176 Avatar for c-bata
232. koji
(koji)		 2167 Avatar for koji
233. Kazuhito00
(KazuhitoTakahashi)		 2158 Avatar for Kazuhito00
234. shioyama
(Chris Salzberg)		 2157 Avatar for shioyama
235. sobri909
(Matt Greenfield)		 2157 Avatar for sobri909
236. anchan828
(Keigo Ando)		 2156 Avatar for anchan828
237. Haruma-K
(Haruki Yano)		 2150 Avatar for Haruma-K
238. hanachin
(Seiei Miyagi)		 2148 Avatar for hanachin
239. Comamoca
(Comamoca)		 2142 Avatar for Comamoca
240. dalance
(Naoya Hatta)		 2136 Avatar for dalance
241. tatsuhiro-t
(Tatsuhiro Tsujikawa)		 2135 Avatar for tatsuhiro-t
242. simurai
(simurai)		 2110 Avatar for simurai
243. craftzdog
(Takuya Matsuyama)		 2102 Avatar for craftzdog
244. wkentaro
(Kentaro Wada)		 2097 Avatar for wkentaro
245. mrtolkien
(Tolki)		 2097 Avatar for mrtolkien
246. kmaehashi
(Kenichi Maehashi)		 2085 Avatar for kmaehashi
247. gfngfn
(Takashi Suwa)		 2080 Avatar for gfngfn
248. koic
(Koichi ITO)		 2079 Avatar for koic
249. fujimura
(Daisuke Fujimura)		 2078 Avatar for fujimura
250. bootjp
(Yoshiaki Ueda (bootjp))		 2077 Avatar for bootjp
251. aiya000
(aiya000)		 2059 Avatar for aiya000
252. hayatoito
(Hayato Ito)		 2056 Avatar for hayatoito
253. dvcrn
(David)		 2033 Avatar for dvcrn
254. atyenoria
(Akinori Nakajima)		 2032 Avatar for atyenoria
255. el-hoshino
(Elvis Shi)		 2032 Avatar for el-hoshino
256. coliff
(Christian Oliff)		 2024 Avatar for coliff

Organizations

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