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 2025-08-28 12:23:41 +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 123606 total users in the region and you need at least 128 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)		 50557 Avatar for bannzai
2. baba-s
(baba_s)		 36179 Avatar for baba-s
3. builtinnya
(Naoto Yokoyama)		 18624 Avatar for builtinnya
4. siketyan
(Naoki Ikeguchi)		 14779 Avatar for siketyan
5. suzuki-shunsuke
(Shunsuke Suzuki)		 14676 Avatar for suzuki-shunsuke
6. winebarrel
(Genki Sugawara)		 14602 Avatar for winebarrel
7. Songmu
(Masayuki Matsuki)		 14522 Avatar for Songmu
8. manman4
(manman4)		 14362 Avatar for manman4
9. shinh
(Shinichiro Hamaji)		 13165 Avatar for shinh
10. saltyshiomix
(Shiono Yoshihide)		 10030 Avatar for saltyshiomix
11. guitarrapc
(Ikiru Yoshizaki)		 10013 Avatar for guitarrapc
12. dev-yakuza
(DeKu)		 9758 Avatar for dev-yakuza
13. ssig33
(ssig33)		 9635 Avatar for ssig33
14. Coordinate-Cat
(Ocat)		 9336 Avatar for Coordinate-Cat
15. MH4GF
(Hirotaka Miyagi)		 9203 Avatar for MH4GF
16. sile
(Takeru Ohta)		 9089 Avatar for sile
17. yuzushioh
(yuzushioh)		 8758 Avatar for yuzushioh
18. yuiseki
(yuiseki)		 8625 Avatar for yuiseki
19. amachang
(Hitoshi Amano)		 8395 Avatar for amachang
20. YumNumm
(Ryotaro Onoue)		 8136 Avatar for YumNumm
21. morizyun
(morizyun)		 7997 Avatar for morizyun
22. vvakame
(Masahiro Wakame)		 7865 Avatar for vvakame
23. ukonpower
(ukonpower)		 7859 Avatar for ukonpower
24. sanposhiho
(Kensei Nakada)		 7665 Avatar for sanposhiho
25. dragon3
(Ryuzo Yamamoto)		 7370 Avatar for dragon3
26. h3poteto
(AkiraFukushima)		 7276 Avatar for h3poteto
27. omochi
(omochimetaru)		 7102 Avatar for omochi
28. takahirom
(Takahiro Menju)		 7031 Avatar for takahirom
29. syumai
(syumai)		 6944 Avatar for syumai
30. k-nasa
(nasa)		 6922 Avatar for k-nasa
31. sys1yagi
(Toshihiro Yagi)		 6892 Avatar for sys1yagi
32. j5ik2o
(Junichi Kato)		 6709 Avatar for j5ik2o
33. taiki-e
(Taiki Endo)		 6500 Avatar for taiki-e
34. seanchas116
(Ryohei Ikegami)		 6425 Avatar for seanchas116
35. peppy
(Dean Herbert)		 6405 Avatar for peppy
36. azu
(azu)		 6396 Avatar for azu
37. okunokentaro
(OKUNOKENTARO)		 6370 Avatar for okunokentaro
38. 3846masa
(Masahiro Miyashiro (3846masa))		 6354 Avatar for 3846masa
39. tnantoka
(Tatsuya Tobioka)		 6225 Avatar for tnantoka
40. tkoyama010
(Tetsuo Koyama)		 6132 Avatar for tkoyama010
41. unhappychoice
(Yuji Ueki)		 5871 Avatar for unhappychoice
42. sue445
(Go Sueyoshi)		 5823 Avatar for sue445
43. kou
(Sutou Kouhei)		 5782 Avatar for kou
44. mizzy
(Gosuke Miyashita)		 5734 Avatar for mizzy
45. ursm
(Keita Urashima)		 5720 Avatar for ursm
46. r-plus
(r-plus)		 5628 Avatar for r-plus
47. bobbens
(Edgar Simo-Serra)		 5602 Avatar for bobbens
48. kyubuns
(kyubuns)		 5573 Avatar for kyubuns
49. nkjzm
(Nakaji Kohki)		 5543 Avatar for nkjzm
50. shogo82148
(ICHINOSE Shogo)		 5525 Avatar for shogo82148
51. Him188
(Him188)		 5401 Avatar for Him188
52. hajimehoshi
(Hajime Hoshi)		 5401 Avatar for hajimehoshi
53. bokuweb
(bokuweb)		 5371 Avatar for bokuweb
54. mika-f
(MOCHIZUKI Natsune)		 5335 Avatar for mika-f
55. yuki-kimoto
(Yuki Kimoto)		 5319 Avatar for yuki-kimoto
56. yasulab
(Yohei Yasukawa)		 5317 Avatar for yasulab
57. hsbt
(Hiroshi SHIBATA)		 5315 Avatar for hsbt
58. ncaq
()		 5310 Avatar for ncaq
59. smorimoto
(Sora Morimoto)		 5294 Avatar for smorimoto
60. mattatz
(Masatatsu Nakamura)		 5272 Avatar for mattatz
61. ogaclejapan
(ogaclejapan)		 5168 Avatar for ogaclejapan
62. sapphi-red
(翠)		 5111 Avatar for sapphi-red
63. AkihiroSuda
(Akihiro Suda)		 5109 Avatar for AkihiroSuda
64. xuwei-k
(kenji yoshida)		 5050 Avatar for xuwei-k
65. luvtechno
(Yoshinori Kawasaki)		 5049 Avatar for luvtechno
66. horita-yuya
(horita-yuya)		 5037 Avatar for horita-yuya
67. eggplants
(haruna)		 5034 Avatar for eggplants
68. sksat
(sksat)		 5018 Avatar for sksat
69. nulltask
(Seiya KONNO)		 5002 Avatar for nulltask
70. Naturalclar
(Jesse Katsumata)		 4960 Avatar for Naturalclar
71. sotetsuk
(Sotetsu KOYAMADA)		 4930 Avatar for sotetsuk
72. hhatto
(Hideo Hattori)		 4920 Avatar for hhatto
73. inokawa
()		 4897 Avatar for inokawa
74. hakuturu583
(Masaya Kataoka)		 4893 Avatar for hakuturu583
75. kaiinui
(kaiinui)		 4875 Avatar for kaiinui
76. anatawa12
(anatawa12)		 4851 Avatar for anatawa12
77. kyokomi
(kyokomi)		 4828 Avatar for kyokomi
78. tetsuharuohzeki
(Tetsuharu Ohzeki)		 4712 Avatar for tetsuharuohzeki
79. myuon
(myuon)		 4701 Avatar for myuon
80. kateinoigakukun
(Yuta Saito)		 4693 Avatar for kateinoigakukun
81. banyan
(Kohei Hasegawa)		 4686 Avatar for banyan
82. harupy
(Harutaka Kawamura)		 4679 Avatar for harupy
83. XiaomingX
(Y11)		 4665 Avatar for XiaomingX
84. SuguruOoki
(Suguru Ohki)		 4657 Avatar for SuguruOoki
85. nov
(Nov Matake)		 4600 Avatar for nov
86. babarot
(Masaki ISHIYAMA)		 4582 Avatar for babarot
87. kojix2
()		 4490 Avatar for kojix2
88. koriym
(Akihito Koriyama)		 4477 Avatar for koriym
89. dvcrn
(David)		 4473 Avatar for dvcrn
90. amake
(Aaron Madlon-Kay)		 4448 Avatar for amake
91. nghialv
(nghialv)		 4421 Avatar for nghialv
92. yuwata
(Yu Watanabe)		 4415 Avatar for yuwata
93. yanorei32
(Ray Yano | あねてあ)		 4412 Avatar for yanorei32
94. yshrsmz
(Yasuhiro SHIMIZU)		 4406 Avatar for yshrsmz
95. hakatashi
(Koki Takahashi)		 4308 Avatar for hakatashi
96. kenn
(Kenn Ejima)		 4261 Avatar for kenn
97. akiomik
(Akiomi KAMAKURA)		 4255 Avatar for akiomik
98. juno
(Junya Ogura)		 4247 Avatar for juno
99. peaceiris
(Shohei Ueda)		 4244 Avatar for peaceiris
100. ohbarye
(Masato Ohba)		 4240 Avatar for ohbarye
101. himkt
(himkt)		 4167 Avatar for himkt
102. fuyu77
(Kosuke Adachi)		 4164 Avatar for fuyu77
103. wadackel
(tsuyoshi wada)		 4163 Avatar for wadackel
104. parroty
(Kenta Nakase)		 4132 Avatar for parroty
105. Code-Hex
(Kei Kamikawa)		 4130 Avatar for Code-Hex
106. fumiya-kume
(kuu(Fumiya Kume))		 4062 Avatar for fumiya-kume
107. ryota-murakami
(Ryota Murakami)		 4047 Avatar for ryota-murakami
108. magurotuna
(Yusuke Tanaka)		 4010 Avatar for magurotuna
109. nuitsjp
(Atsushi Nakamura)		 3977 Avatar for nuitsjp
110. Muramatsuu
(Matsu)		 3974 Avatar for Muramatsuu
111. mogaming217
(moga)		 3968 Avatar for mogaming217
112. yuku
(Yuku Takahashi)		 3963 Avatar for yuku
113. naichilab
(naichi)		 3925 Avatar for naichilab
114. toshi0383
(Toshihiro Suzuki)		 3901 Avatar for toshi0383
115. budougumi0617
(Yoichiro Shimizu)		 3889 Avatar for budougumi0617
116. dtaniwaki
(Daisuke Taniwaki)		 3889 Avatar for dtaniwaki
117. hrsh7th
(hrsh7th)		 3869 Avatar for hrsh7th
118. ianlewis
(Ian Lewis)		 3844 Avatar for ianlewis
119. terasakisatoshi
(Satoshi Terasaki)		 3844 Avatar for terasakisatoshi
120. hi-ogawa
(Hiroshi Ogawa)		 3804 Avatar for hi-ogawa
121. coji
(Coji Mizoguchi)		 3785 Avatar for coji
122. tenzen-y
(Yuki Iwai)		 3779 Avatar for tenzen-y
123. hiroshisekiya644
(Hiroshi Sekiya)		 3774 Avatar for hiroshisekiya644
124. tk0miya
(Takeshi KOMIYA)		 3766 Avatar for tk0miya
125. zchee
(Koichi Shiraishi)		 3748 Avatar for zchee
126. sulami
(Robin Schroer)		 3734 Avatar for sulami
127. Saul-Mirone
(Mirone)		 3724 Avatar for Saul-Mirone
128. superbrothers
(Kazuki Suda)		 3717 Avatar for superbrothers
129. ubugeeei
(ubugeeei)		 3706 Avatar for ubugeeei
130. toastkidjp
(Toast kid)		 3684 Avatar for toastkidjp
131. mtsmfm
(Fumiaki MATSUSHIMA)		 3682 Avatar for mtsmfm
132. a-r-g-v
(Yuki Mukasa ( a_r_g_v ))		 3671 Avatar for a-r-g-v
133. m-mizutani
(Masayoshi Mizutani)		 3671 Avatar for m-mizutani
134. catnose99
(catnose)		 3661 Avatar for catnose99
135. nzws
(Yuzuki Aida)		 3658 Avatar for nzws
136. touyou
(Fujii Yosuke)		 3619 Avatar for touyou
137. LISA-KOREA
(Lisa )		 3611 Avatar for LISA-KOREA
138. hsjoihs
(hsjoihs)		 3586 Avatar for hsjoihs
139. Saqoosha
(Saqoosha)		 3581 Avatar for Saqoosha
140. fukayatsu
(Atsuo Fukaya)		 3571 Avatar for fukayatsu
141. whitphx
(Yuichiro Tachibana (Tsuchiya))		 3508 Avatar for whitphx
142. izumin5210
(Masayuki Izumi)		 3478 Avatar for izumin5210
143. kubosho
(KUBOTA Shota)		 3477 Avatar for kubosho
144. lambdalisue
(Λlisue)		 3476 Avatar for lambdalisue
145. k0i
(k0i)		 3458 Avatar for k0i
146. edom18
(edo)		 3452 Avatar for edom18
147. sota1235
(Sota Sugiura)		 3451 Avatar for sota1235
148. retoruto-carry
(retoruto-carry)		 3441 Avatar for retoruto-carry
149. p-chan
(P-Chan)		 3430 Avatar for p-chan
150. mrtc0
(Kohei Morita)		 3426 Avatar for mrtc0
151. airtoxin
(Ryoji Miyazato)		 3418 Avatar for airtoxin
152. katahiromz
(Katayama Hirofumi MZ)		 3410 Avatar for katahiromz
153. kboy-silvergym
(Kei Fujikawa)		 3406 Avatar for kboy-silvergym
154. p1ass
(Naoki Kishi)		 3402 Avatar for p1ass
155. yhatt
(Yuki Hattori)		 3401 Avatar for yhatt
156. lukas-reineke
(Lukas Reineke)		 3394 Avatar for lukas-reineke
157. shirakaba
(Jamie Birch)		 3378 Avatar for shirakaba
158. yamadashy
(Kazuki Yamada)		 3344 Avatar for yamadashy
159. yuya-takeyama
(Yuya Takeyama)		 3335 Avatar for yuya-takeyama
160. kentaro
(Kentaro Kuribayashi)		 3332 Avatar for kentaro
161. yyuu
(YAMASHITA, Yuu)		 3317 Avatar for yyuu
162. HiroIshida
(Hirokazu Ishida)		 3250 Avatar for HiroIshida
163. k1LoW
(Ken’ichiro Oyama)		 3249 Avatar for k1LoW
164. champierre
(Junya Ishihara)		 3245 Avatar for champierre
165. tokuhirom
(Tokuhiro Matsuno)		 3216 Avatar for tokuhirom
166. cpojer
(Christoph Nakazawa)		 3205 Avatar for cpojer
167. Takazudo
(Takeshi Takatsudo)		 3196 Avatar for Takazudo
168. kotarella1110
(Kotaro Sugawara)		 3173 Avatar for kotarella1110
169. koxudaxi
(Koudai Aono)		 3167 Avatar for koxudaxi
170. shufo
(Shuhei Hayashibara)		 3156 Avatar for shufo
171. miyako
(Keisuke Miyako)		 3155 Avatar for miyako
172. taishikato
(Taishi)		 3140 Avatar for taishikato
173. kishikawakatsumi
(Kishikawa Katsumi)		 3135 Avatar for kishikawakatsumi
174. yowatanabe
(Yoshiyuki Watanabe)		 3129 Avatar for yowatanabe
175. yukukotani
(Yuku Kotani)		 3128 Avatar for yukukotani
176. shu223
(Shuichi Tsutsumi)		 3120 Avatar for shu223
177. hotchpotch
(Yuichi Tateno (secon))		 3100 Avatar for hotchpotch
178. heestand-xyz
(Anton Heestand)		 3092 Avatar for heestand-xyz
179. glassesfactory
(YAMAGUCHI EIKICHI)		 3055 Avatar for glassesfactory
180. fa0311
(ふぁ)		 3034 Avatar for fa0311
181. houko
(Evan Hu)		 3028 Avatar for houko
182. fujimura
(Daisuke Fujimura)		 2998 Avatar for fujimura
183. Jannchie
(Jianqi Pan)		 2991 Avatar for Jannchie
184. MizukiSonoko
(MIZUKI Sonoko / Igarashi)		 2972 Avatar for MizukiSonoko
185. yoshiko-pg
(yoshiko)		 2952 Avatar for yoshiko-pg
186. sotayamashita
(Sam Yamashita)		 2950 Avatar for sotayamashita
187. coord-e
(Hiromi Ogawa)		 2947 Avatar for coord-e
188. buchizo
(kosmos.ebi)		 2930 Avatar for buchizo
189. kevinzhow
(Kevin)		 2912 Avatar for kevinzhow
190. lan496
(Kohei Shinohara)		 2912 Avatar for lan496
191. tmori
(Takashi Mori)		 2890 Avatar for tmori
192. nobu
(Nobuyoshi Nakada)		 2875 Avatar for nobu
193. deatiger
(deatiger)		 2874 Avatar for deatiger
194. uzulla
(uzulla / Junichi Ishida)		 2871 Avatar for uzulla
195. AAkira
(Akira Aratani)		 2854 Avatar for AAkira
196. t-hamano
(Aki Hamano)		 2848 Avatar for t-hamano
197. morizotter
(Morita Naoki)		 2845 Avatar for morizotter
198. tokorom
(tokorom)		 2823 Avatar for tokorom
199. sorairolake
(Shun Sakai)		 2823 Avatar for sorairolake
200. making
(Toshiaki Maki)		 2822 Avatar for making
201. summerwind
(Moto Ishizawa)		 2781 Avatar for summerwind
202. yottahmd
(YotaHamada)		 2759 Avatar for yottahmd
203. norbusan
(Norbert Preining)		 2746 Avatar for norbusan
204. rjyo
(Rakuraku Jyo)		 2735 Avatar for rjyo
205. k-takeuchi220
(took)		 2734 Avatar for k-takeuchi220
206. 1amageek
(1amageek)		 2730 Avatar for 1amageek
207. mizchi
(Kotaro Chikuba)		 2716 Avatar for mizchi
208. tekezo
(Takayama Fumihiko)		 2713 Avatar for tekezo
209. kitak
(Keisuke KITA)		 2710 Avatar for kitak
210. alexwilson
(Alex Wilson)		 2710 Avatar for alexwilson
211. ryohey
(ryohey)		 2708 Avatar for ryohey
212. at-wat
(Atsushi Watanabe)		 2701 Avatar for at-wat
213. eitsupi
()		 2682 Avatar for eitsupi
214. hideakitai
(Hideaki Tai)		 2671 Avatar for hideakitai
215. muukii
(Hiroshi Kimura)		 2668 Avatar for muukii
216. upamune
(Yu SERIZAWA)		 2663 Avatar for upamune
217. LumaKernel
(Luma)		 2651 Avatar for LumaKernel
218. aereal
(aereal)		 2648 Avatar for aereal
219. wxt2005
(Xiaotao Wang)		 2648 Avatar for wxt2005
220. jinjor
(Yosuke Torii)		 2636 Avatar for jinjor
221. sevenc-nanashi
(Nanashi.)		 2636 Avatar for sevenc-nanashi
222. koji
(koji)		 2631 Avatar for koji
223. privatenumber
(Hiroki Osame)		 2621 Avatar for privatenumber
224. kazupon
(kazuya kawaguchi)		 2605 Avatar for kazupon
225. seratch
(Kazuhiro Sera)		 2600 Avatar for seratch
226. shimat
(shimat)		 2586 Avatar for shimat
227. snoozer05
(SHIMADA Koji)		 2578 Avatar for snoozer05
228. Haruma-K
(Haruki Yano)		 2570 Avatar for Haruma-K
229. moriyoshi
(Moriyoshi Koizumi)		 2564 Avatar for moriyoshi
230. moznion
(moznion)		 2557 Avatar for moznion
231. mopp
(mopp)		 2540 Avatar for mopp
232. otofu-square
(Hidemi Yukita)		 2538 Avatar for otofu-square
233. Hiroshiba
(Hiroshiba)		 2536 Avatar for Hiroshiba
234. newraina
(newraina)		 2532 Avatar for newraina
235. yutkat
(Yuta Katayama)		 2529 Avatar for yutkat
236. exoego
(TATSUNO “Taz” Yasuhiro)		 2528 Avatar for exoego
237. beinteractive
(Yoshihiro Shindo)		 2526 Avatar for beinteractive
238. p-x9
()		 2526 Avatar for p-x9
239. wasabeef
(Daichi Furiya)		 2524 Avatar for wasabeef
240. sachaos
(Takumasa Sakao)		 2519 Avatar for sachaos
241. ww24
(Takenori Nakagawa)		 2513 Avatar for ww24
242. nagachika
(nagachika)		 2499 Avatar for nagachika
243. shu-tom
(shusei tomonaga)		 2486 Avatar for shu-tom
244. mitmul
(Shunta Saito)		 2484 Avatar for mitmul
245. gongo
(Wataru MIYAGUNI)		 2480 Avatar for gongo
246. fosskers
(Colin Woodbury)		 2467 Avatar for fosskers
247. smoogipoo
(Dan Balasescu)		 2448 Avatar for smoogipoo
248. h6ah4i
(Haruki Hasegawa)		 2448 Avatar for h6ah4i
249. kt3k
(Yoshiya Hinosawa)		 2447 Avatar for kt3k
250. 921kiyo
(Kiyo Kunii)		 2442 Avatar for 921kiyo
251. mzyy94
(Yuki MIZUNO)		 2439 Avatar for mzyy94
252. SphericalKat
(Amogh Lele)		 2432 Avatar for SphericalKat
253. IloveNooodles
(Muhammad Garebaldhie Er Rahman)		 2425 Avatar for IloveNooodles
254. s-aska
(Shinichiro Aska)		 2424 Avatar for s-aska
255. tarunon
(tarunon)		 2424 Avatar for tarunon
256. akkyie
(Akio Yasui)		 2417 Avatar for akkyie

Organizations

Rank Organization Members
1. potatotips 7
2. pfnet 6
3. ruby 5
4. kubernetes 4
5. epicgames 4
6. pfnet-research 4
7. jenkinsci 4
8. reviewdog 4
9. power-assert-js 3
10. ukigumo 3