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 2025-07-02 12:15:58 +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 122005 total users in the region and you need at least 175 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)		 27293 Avatar for baba-s
2. siketyan
(Naoki Ikeguchi)		 14798 Avatar for siketyan
3. bannzai
(bannzai)		 14713 Avatar for bannzai
4. winebarrel
(Genki Sugawara)		 14428 Avatar for winebarrel
5. suzuki-shunsuke
(Shunsuke Suzuki)		 14335 Avatar for suzuki-shunsuke
6. Songmu
(Masayuki Matsuki)		 14031 Avatar for Songmu
7. manman4
()		 12577 Avatar for manman4
8. dev-yakuza
(DeKu)		 11718 Avatar for dev-yakuza
9. saltyshiomix
(Shiono Yoshihide)		 10322 Avatar for saltyshiomix
10. guitarrapc
(Ikiru Yoshizaki)		 9820 Avatar for guitarrapc
11. yuiseki
(yuiseki)		 9421 Avatar for yuiseki
12. shinh
(Shinichiro Hamaji)		 8872 Avatar for shinh
13. yuzushioh
(yuzushioh)		 8850 Avatar for yuzushioh
14. vvakame
(Masahiro Wakame)		 8436 Avatar for vvakame
15. sile
(Takeru Ohta)		 8377 Avatar for sile
16. YumNumm
(Ryotaro Onoue)		 8337 Avatar for YumNumm
17. sanposhiho
(Kensei Nakada)		 8198 Avatar for sanposhiho
18. Coordinate-Cat
(Ocat)		 8043 Avatar for Coordinate-Cat
19. amachang
(Hitoshi Amano)		 7527 Avatar for amachang
20. smorimoto
(Sora Morimoto)		 6930 Avatar for smorimoto
21. takahirom
(Takahiro Menju)		 6870 Avatar for takahirom
22. tkoyama010
(Tetsuo Koyama)		 6840 Avatar for tkoyama010
23. kyubuns
(kyubuns)		 6789 Avatar for kyubuns
24. syumai
(syumai)		 6776 Avatar for syumai
25. j5ik2o
(Junichi Kato)		 6706 Avatar for j5ik2o
26. peppy
(Dean Herbert)		 6691 Avatar for peppy
27. sue445
(Go Sueyoshi)		 6585 Avatar for sue445
28. taiki-e
(Taiki Endo)		 6404 Avatar for taiki-e
29. shogo82148
(ICHINOSE Shogo)		 6347 Avatar for shogo82148
30. ursm
(Keita Urashima)		 6171 Avatar for ursm
31. azu
(azu)		 5995 Avatar for azu
32. seanchas116
(Ryohei Ikegami)		 5822 Avatar for seanchas116
33. 3846masa
(Masahiro Miyashiro (3846masa))		 5752 Avatar for 3846masa
34. r-plus
(r-plus)		 5664 Avatar for r-plus
35. hajimehoshi
(Hajime Hoshi)		 5601 Avatar for hajimehoshi
36. yuki-kimoto
(Yuki Kimoto)		 5590 Avatar for yuki-kimoto
37. mattatz
(Masatatsu Nakamura)		 5573 Avatar for mattatz
38. hsbt
(Hiroshi SHIBATA)		 5499 Avatar for hsbt
39. sksat
(sksat)		 5394 Avatar for sksat
40. nov
(Nov Matake)		 5371 Avatar for nov
41. anatawa12
(anatawa12)		 5357 Avatar for anatawa12
42. mizzy
(Gosuke Miyashita)		 5352 Avatar for mizzy
43. inokawa
()		 5351 Avatar for inokawa
44. kou
(Sutou Kouhei)		 5310 Avatar for kou
45. mika-f
(MOCHIZUKI Natsune)		 5241 Avatar for mika-f
46. AkihiroSuda
(Akihiro Suda)		 5181 Avatar for AkihiroSuda
47. bokuweb
(bokuweb)		 5127 Avatar for bokuweb
48. unhappychoice
(Yuji Ueki)		 4933 Avatar for unhappychoice
49. ogaclejapan
(ogaclejapan)		 4822 Avatar for ogaclejapan
50. yasulab
(Yohei Yasukawa)		 4782 Avatar for yasulab
51. Naturalclar
(Jesse Katsumata)		 4748 Avatar for Naturalclar
52. hakuturu583
(Masaya Kataoka)		 4688 Avatar for hakuturu583
53. fuyu77
(Kosuke Adachi)		 4588 Avatar for fuyu77
54. kateinoigakukun
(Yuta Saito)		 4579 Avatar for kateinoigakukun
55. bobbens
(Edgar Simo-Serra)		 4534 Avatar for bobbens
56. himkt
(himkt)		 4512 Avatar for himkt
57. toshi0383
(Toshihiro Suzuki)		 4448 Avatar for toshi0383
58. banyan
(Kohei Hasegawa)		 4447 Avatar for banyan
59. XiaomingX
(Y11)		 4444 Avatar for XiaomingX
60. akiomik
(Akiomi KAMAKURA)		 4407 Avatar for akiomik
61. harupy
(Harutaka Kawamura)		 4310 Avatar for harupy
62. hhatto
(Hideo Hattori)		 4261 Avatar for hhatto
63. sapphi-red
(翠)		 4255 Avatar for sapphi-red
64. peaceiris
(Shohei Ueda)		 4228 Avatar for peaceiris
65. mogaming217
(moga)		 4221 Avatar for mogaming217
66. xuwei-k
(kenji yoshida)		 4204 Avatar for xuwei-k
67. ryota-murakami
(Ryota Murakami)		 4197 Avatar for ryota-murakami
68. Saul-Mirone
(Mirone)		 4170 Avatar for Saul-Mirone
69. wadackel
(tsuyoshi wada)		 4160 Avatar for wadackel
70. Code-Hex
(Kei Kamikawa)		 4155 Avatar for Code-Hex
71. hrsh7th
(hrsh7th)		 4138 Avatar for hrsh7th
72. terasakisatoshi
(Satoshi Terasaki)		 4103 Avatar for terasakisatoshi
73. babarot
(Masaki ISHIYAMA)		 4060 Avatar for babarot
74. yuwata
(Yu Watanabe)		 4053 Avatar for yuwata
75. hakatashi
(Koki Takahashi)		 4050 Avatar for hakatashi
76. yuku
(Yuku Takahashi)		 4045 Avatar for yuku
77. nghialv
(nghialv)		 3956 Avatar for nghialv
78. edom18
(edo)		 3944 Avatar for edom18
79. juno
(Junya Ogura)		 3934 Avatar for juno
80. magurotuna
(Yusuke Tanaka)		 3848 Avatar for magurotuna
81. kenn
(Kenn Ejima)		 3847 Avatar for kenn
82. koriym
(Akihito Koriyama)		 3721 Avatar for koriym
83. toastkidjp
(Toast kid)		 3667 Avatar for toastkidjp
84. HiroIshida
(Hirokazu Ishida)		 3655 Avatar for HiroIshida
85. zchee
(Koichi Shiraishi)		 3651 Avatar for zchee
86. k0i
(k0i)		 3610 Avatar for k0i
87. LISA-KOREA
(Lisa )		 3609 Avatar for LISA-KOREA
88. yanorei32
(Ray Yano | あねてあ)		 3572 Avatar for yanorei32
89. tk0miya
(Takeshi KOMIYA)		 3547 Avatar for tk0miya
90. superbrothers
(Kazuki Suda)		 3538 Avatar for superbrothers
91. hi-ogawa
(Hiroshi Ogawa)		 3504 Avatar for hi-ogawa
92. touyou
(Fujii Yosuke)		 3500 Avatar for touyou
93. izumin5210
(Masayuki Izumi)		 3473 Avatar for izumin5210
94. kishikawakatsumi
(Kishikawa Katsumi)		 3465 Avatar for kishikawakatsumi
95. fumiya-kume
(kuu(Fumiya Kume))		 3429 Avatar for fumiya-kume
96. hiroshisekiya644
(Hiroshi Sekiya)		 3413 Avatar for hiroshisekiya644
97. kentaro
(Kentaro Kuribayashi)		 3412 Avatar for kentaro
98. Saqoosha
(Saqoosha)		 3412 Avatar for Saqoosha
99. cpojer
(Christoph Nakazawa)		 3397 Avatar for cpojer
100. shirakaba
(Jamie Birch)		 3388 Avatar for shirakaba
101. lukas-reineke
(Lukas Reineke)		 3354 Avatar for lukas-reineke
102. lambdalisue
(Λlisue)		 3340 Avatar for lambdalisue
103. p-chan
(P-Chan)		 3334 Avatar for p-chan
104. yyuu
(YAMASHITA, Yuu)		 3261 Avatar for yyuu
105. shimat
(shimat)		 3253 Avatar for shimat
106. yhatt
(Yuki Hattori)		 3238 Avatar for yhatt
107. koxudaxi
(Koudai Aono)		 3238 Avatar for koxudaxi
108. miyako
(Keisuke Miyako)		 3172 Avatar for miyako
109. hotchpotch
(Yuichi Tateno (secon))		 3145 Avatar for hotchpotch
110. sorairolake
(Shun Sakai)		 3119 Avatar for sorairolake
111. catnose99
(catnose)		 3116 Avatar for catnose99
112. dvcrn
(David)		 3102 Avatar for dvcrn
113. kt3k
(Yoshiya Hinosawa)		 3093 Avatar for kt3k
114. fukayatsu
(Atsuo Fukaya)		 3092 Avatar for fukayatsu
115. making
(Toshiaki Maki)		 3083 Avatar for making
116. yowatanabe
(Yoshiyuki Watanabe)		 3071 Avatar for yowatanabe
117. k1LoW
(Ken’ichiro Oyama)		 3061 Avatar for k1LoW
118. ryohey
(ryohey)		 3048 Avatar for ryohey
119. whitphx
(Yuichiro Tachibana (Tsuchiya))		 3046 Avatar for whitphx
120. s-aska
(Shinichiro Aska)		 2962 Avatar for s-aska
121. sosukesuzuki
(SUZUKI Sosuke)		 2958 Avatar for sosukesuzuki
122. yuya-takeyama
(Yuya Takeyama)		 2937 Avatar for yuya-takeyama
123. tokorom
(tokorom)		 2914 Avatar for tokorom
124. p1ass
(Naoki Kishi)		 2914 Avatar for p1ass
125. heestand-xyz
(Anton Heestand)		 2902 Avatar for heestand-xyz
126. shu223
(Shuichi Tsutsumi)		 2892 Avatar for shu223
127. hideakitai
(Hideaki Tai)		 2868 Avatar for hideakitai
128. kevinzhow
(Kevin)		 2857 Avatar for kevinzhow
129. ianlewis
(Ian Lewis)		 2854 Avatar for ianlewis
130. champierre
(Junya Ishihara)		 2853 Avatar for champierre
131. coord-e
(Hiromi Ogawa)		 2846 Avatar for coord-e
132. morizotter
(Morita Naoki)		 2835 Avatar for morizotter
133. glassesfactory
(YAMAGUCHI EIKICHI)		 2815 Avatar for glassesfactory
134. retoruto-carry
(retoruto-carry)		 2795 Avatar for retoruto-carry
135. ubugeeei
(ubugeeei)		 2791 Avatar for ubugeeei
136. yoshiko-pg
(yoshiko)		 2790 Avatar for yoshiko-pg
137. k-takeuchi220
(took)		 2773 Avatar for k-takeuchi220
138. yamadashy
(Kazuki Yamada)		 2764 Avatar for yamadashy
139. deatiger
(deatiger)		 2758 Avatar for deatiger
140. fosskers
(Colin Woodbury)		 2751 Avatar for fosskers
141. norbusan
(Norbert Preining)		 2734 Avatar for norbusan
142. fa0311
(ふぁ)		 2729 Avatar for fa0311
143. rjyo
(Rakuraku Jyo)		 2715 Avatar for rjyo
144. mob-sakai
(mob-sakai)		 2711 Avatar for mob-sakai
145. privatenumber
(Hiroki Osame)		 2699 Avatar for privatenumber
146. tarunon
(tarunon)		 2687 Avatar for tarunon
147. kazupon
(kazuya kawaguchi)		 2673 Avatar for kazupon
148. uzulla
(uzulla / Junichi Ishida)		 2668 Avatar for uzulla
149. lyokato
(Lyo Kato)		 2664 Avatar for lyokato
150. mpyw
(mpyw)		 2657 Avatar for mpyw
151. fujimura
(Daisuke Fujimura)		 2645 Avatar for fujimura
152. at-wat
(Atsushi Watanabe)		 2644 Avatar for at-wat
153. h6ah4i
(Haruki Hasegawa)		 2636 Avatar for h6ah4i
154. sotayamashita
(Sam Yamashita)		 2625 Avatar for sotayamashita
155. nobu
(Nobuyoshi Nakada)		 2603 Avatar for nobu
156. coliff
(Christian Oliff)		 2586 Avatar for coliff
157. mitmul
(Shunta Saito)		 2572 Avatar for mitmul
158. halogenandtoast
(Matthew Mongeau)		 2572 Avatar for halogenandtoast
159. smoogipoo
(Dan Balasescu)		 2570 Avatar for smoogipoo
160. konn
(Hiromi Ishii)		 2565 Avatar for konn
161. Jannchie
(Jianqi Pan)		 2536 Avatar for Jannchie
162. mesqueeb
(Luca Ban)		 2534 Avatar for mesqueeb
163. moznion
(moznion)		 2505 Avatar for moznion
164. mzyy94
(Yuki MIZUNO)		 2499 Avatar for mzyy94
165. EdamAme-x
(EdamAmex)		 2496 Avatar for EdamAme-x
166. p-x9
()		 2483 Avatar for p-x9
167. tmori
(Takashi Mori)		 2474 Avatar for tmori
168. gongo
(Wataru MIYAGUNI)		 2474 Avatar for gongo
169. atztogo
(Atsushi Togo)		 2471 Avatar for atztogo
170. yutkat
(Yuta Katayama)		 2462 Avatar for yutkat
171. AAkira
(Akira Aratani)		 2456 Avatar for AAkira
172. osteele
(Oliver Steele)		 2453 Avatar for osteele
173. kadamwhite
(K Adam White)		 2452 Avatar for kadamwhite
174. summerwind
(Moto Ishizawa)		 2451 Avatar for summerwind
175. muukii
(Hiroshi Kimura)		 2437 Avatar for muukii
176. sachaos
(Takumasa Sakao)		 2434 Avatar for sachaos
177. sevenc-nanashi
(Nanashi.)		 2409 Avatar for sevenc-nanashi
178. youtalk
(Yutaka Kondo)		 2395 Avatar for youtalk
179. SphericalKat
(Amogh Lele)		 2389 Avatar for SphericalKat
180. frandiox
(Fran Dios)		 2378 Avatar for frandiox
181. kbinani
(kbinani)		 2356 Avatar for kbinani
182. tatsuhiro-t
(Tatsuhiro Tsujikawa)		 2345 Avatar for tatsuhiro-t
183. tokuhirom
(Tokuhiro Matsuno)		 2342 Avatar for tokuhirom
184. anchan828
(Keigo Ando)		 2330 Avatar for anchan828
185. Hiroshiba
(Hiroshiba)		 2327 Avatar for Hiroshiba
186. houko
(Evan Hu)		 2272 Avatar for houko
187. Haruma-K
(Haruki Yano)		 2269 Avatar for Haruma-K
188. Kazuhito00
(KazuhitoTakahashi)		 2262 Avatar for Kazuhito00
189. moriyoshi
(Moriyoshi Koizumi)		 2262 Avatar for moriyoshi
190. c-bata
(c-bata)		 2254 Avatar for c-bata
191. Avimitin
(Jiongjia Lu)		 2251 Avatar for Avimitin
192. creasty
(Yuki Iwanaga)		 2247 Avatar for creasty
193. msakai
(Masahiro Sakai)		 2245 Avatar for msakai
194. tekezo
(Takayama Fumihiko)		 2243 Avatar for tekezo
195. hitode909
(hitode909)		 2238 Avatar for hitode909
196. 1amageek
(1amageek)		 2238 Avatar for 1amageek
197. yshrsmz
(Yasuhiro SHIMIZU)		 2233 Avatar for yshrsmz
198. sobri909
(Matt Greenfield)		 2228 Avatar for sobri909
199. ionicc
(Sagar Vakkala)		 2228 Avatar for ionicc
200. el-hoshino
(Elvis Shi)		 2223 Avatar for el-hoshino
201. zcbenz
(Cheng)		 2216 Avatar for zcbenz
202. Comamoca
(Comamoca)		 2209 Avatar for Comamoca
203. koji
(koji)		 2207 Avatar for koji
204. mktakuya
(Takuya Mukohira)		 2205 Avatar for mktakuya
205. simurai
(simurai)		 2202 Avatar for simurai
206. bananaappletw
(Weibo Chen)		 2201 Avatar for bananaappletw
207. gkjohnson
(Garrett Johnson)		 2187 Avatar for gkjohnson
208. ktr0731
(ktr)		 2181 Avatar for ktr0731
209. tatsuyafujisaki
(Tatsuya Fujisaki)		 2180 Avatar for tatsuyafujisaki
210. craftzdog
(Takuya Matsuyama)		 2174 Avatar for craftzdog
211. wasabeef
(Daichi Furiya)		 2168 Avatar for wasabeef
212. wkentaro
(Kentaro Wada)		 2165 Avatar for wkentaro
213. kitao
(Takashi Kitao)		 2164 Avatar for kitao
214. dennybritz
(Denny Britz)		 2146 Avatar for dennybritz
215. yusukebe
(Yusuke Wada)		 2136 Avatar for yusukebe
216. koic
(Koichi ITO)		 2133 Avatar for koic
217. MizukiSonoko
(MIZUKI Sonoko / Igarashi)		 2125 Avatar for MizukiSonoko
218. avosalmon
(Ryuta Hamasaki)		 2124 Avatar for avosalmon
219. uribo
(Shinya Uryu)		 2120 Avatar for uribo
220. neka-nat
(Shirokuma (k tanaka))		 2113 Avatar for neka-nat
221. hatoo
()		 2109 Avatar for hatoo
222. nakasyou
(Shotaro Nakamura)		 2104 Avatar for nakasyou
223. hanachin
(Seiei Miyagi)		 2103 Avatar for hanachin
224. saki4510t
(saki)		 2102 Avatar for saki4510t
225. Sixeight
(Tomohiro Nishimura)		 2090 Avatar for Sixeight
226. IloveNooodles
(Muhammad Garebaldhie Er Rahman)		 2079 Avatar for IloveNooodles
227. dai-shi
(Daishi Kato)		 2078 Avatar for dai-shi
228. hvy
(Hiroyuki Vincent Yamazaki)		 2073 Avatar for hvy
229. ufcpp
(Nobuyuki Iwanaga)		 2069 Avatar for ufcpp
230. atyenoria
(Akinori Nakajima)		 2064 Avatar for atyenoria
231. onevcat
(Wei Wang)		 2056 Avatar for onevcat
232. int128
(Hidetake Iwata)		 2054 Avatar for int128
233. dalance
(Naoya Hatta)		 2049 Avatar for dalance
234. shioyama
(Chris Salzberg)		 2048 Avatar for shioyama
235. nuskey8
(Yusuke Nakada)		 2023 Avatar for nuskey8
236. toptal0212
(ToptalDev)		 2018 Avatar for toptal0212
237. mrdulin
(official_dulin)		 1997 Avatar for mrdulin
238. gfngfn
(Takashi Suwa)		 1994 Avatar for gfngfn
239. sgr-ksmt
(Suguru Kishimoto)		 1983 Avatar for sgr-ksmt
240. PINTO0309
(Katsuya Hyodo)		 1978 Avatar for PINTO0309
241. seratch
(Kazuhiro Sera)		 1970 Avatar for seratch
242. mrtolkien
(Tolki)		 1969 Avatar for mrtolkien
243. hayatoito
(Hayato Ito)		 1962 Avatar for hayatoito
244. toshimaru
(Toshimaru)		 1949 Avatar for toshimaru
245. T-Kuhn
(Tobias Kuhn)		 1932 Avatar for T-Kuhn
246. momeemt
(Mutsuha Asada)		 1923 Avatar for momeemt
247. goccy
(Masaaki Goshima)		 1913 Avatar for goccy
248. Shougo
(Shougo)		 1911 Avatar for Shougo
249. katopz
(Todsaporn Banjerdkit)		 1907 Avatar for katopz
250. hutajoullach
(Huta Joullach)		 1905 Avatar for hutajoullach
251. r7kamura
(Ryo Nakamura)		 1903 Avatar for r7kamura
252. naoty
(Naoto Kaneko)		 1889 Avatar for naoty
253. mizchi
(Kotaro Chikuba)		 1884 Avatar for mizchi
254. yutannihilation
(Hiroaki Yutani)		 1880 Avatar for yutannihilation
255. t4sk
()		 1874 Avatar for t4sk
256. davetang
(Dave Tang)		 1874 Avatar for davetang

Organizations

Rank Organization Members
1. potatotips 9
2. pfnet 7
3. epicgames 5
4. pfnet-research 5
5. chainer 4
6. optuna 4
7. ruby 4
8. web-platform-tests 3
9. scalajp 3
10. ukigumo 3