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 2026-08-11 08:06:45 +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 public commits for each user. There are 140527 total users in the region and you need at least 224 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/USERNAME.svg)](https://user-badge.committers.top/japan/USERNAME)
For organizations, you need to use a slightly different markup: 
[![committers.top badge](https://org-badge.committers.top/japan/ORGNAME.svg)](https://org-badge.committers.top/japan/ORGNAME)
In case you aren't currently ranked on this page, you'll simply receive an "unranked" badge.

Rank User Contribs Picture
1. MagicalTux
(Mark Karpelès)		 33704 Avatar for MagicalTux
2. rsasaki0109
(Ryohei Sasaki)		 24632 Avatar for rsasaki0109
3. yuiseki
(yuiseki)		 17157 Avatar for yuiseki
4. mizchi
(Kotaro Chikuba)		 16331 Avatar for mizchi
5. tokuhirom
(Tokuhiro Matsuno)		 14345 Avatar for tokuhirom
6. j5ik2o
(Junichi Kato)		 13936 Avatar for j5ik2o
7. fumiya-kume
(kuu(Fumiya Kume))		 9719 Avatar for fumiya-kume
8. syoyo
(Syoyo Fujita)		 9689 Avatar for syoyo
9. unhappychoice
(Yuji Ueki)		 9125 Avatar for unhappychoice
10. yanorei32
(Ray Yano | あねてあ)		 9100 Avatar for yanorei32
11. sile
(Takeru Ohta)		 8835 Avatar for sile
12. tekezo
(Takayama Fumihiko)		 8662 Avatar for tekezo
13. lhl
(Leonard)		 8322 Avatar for lhl
14. manman4
(manman4)		 8117 Avatar for manman4
15. shogo82148
(ICHINOSE Shogo)		 7909 Avatar for shogo82148
16. zonuexe
(USAMI Kenta)		 7859 Avatar for zonuexe
17. mizzy
(Gosuke Miyashita)		 7364 Avatar for mizzy
18. miyako
(Keisuke Miyako)		 7256 Avatar for miyako
19. ubugeeei
(ubugeeei)		 7245 Avatar for ubugeeei
20. 1amageek
(1amageek)		 7015 Avatar for 1amageek
21. taiki-e
(Taiki Endo)		 6939 Avatar for taiki-e
22. matz
(Yukihiro "Matz" Matsumoto)		 6883 Avatar for matz
23. ko1
(Koichi Sasada)		 6672 Avatar for ko1
24. hsbt
(Hiroshi SHIBATA)		 6643 Avatar for hsbt
25. ryota-murakami
(Ryota Murakami)		 6303 Avatar for ryota-murakami
26. sue445
(Go Sueyoshi)		 6223 Avatar for sue445
27. koriym
(Akihito Koriyama)		 6160 Avatar for koriym
28. guitarrapc
(Ikiru Yoshizaki)		 5982 Avatar for guitarrapc
29. k1LoW
(Ken’ichiro Oyama)		 5947 Avatar for k1LoW
30. yuki-kimoto
(Yuki Kimoto)		 5923 Avatar for yuki-kimoto
31. conao3
(Naoya Yamashita)		 5786 Avatar for conao3
32. lestrrat
(lestrrat)		 5557 Avatar for lestrrat
33. hakatashi
(Koki Takahashi)		 5498 Avatar for hakatashi
34. xuwei-k
(kenji yoshida)		 5488 Avatar for xuwei-k
35. kurone-kito
(Kuroné Kito (黒音キト))		 5431 Avatar for kurone-kito
36. azu
(azu)		 5324 Avatar for azu
37. mumoshu
(Yusuke Kuoka)		 5253 Avatar for mumoshu
38. bannzai
(bannzai)		 5107 Avatar for bannzai
39. YumNumm
(Ryotaro Onoue)		 5067 Avatar for YumNumm
40. winebarrel
(Genki Sugawara)		 4908 Avatar for winebarrel
41. mattn
(mattn)		 4875 Avatar for mattn
42. sksat
(sksat)		 4780 Avatar for sksat
43. ursm
(Keita Urashima)		 4736 Avatar for ursm
44. EdamAme-x
(EdamAmex)		 4709 Avatar for EdamAme-x
45. halogenandtoast
(Matthew Mongeau)		 4645 Avatar for halogenandtoast
46. PINTO0309
(Katsuya Hyodo)		 4633 Avatar for PINTO0309
47. houko
(Evan)		 4533 Avatar for houko
48. sxzz
(Kevin Deng)		 4455 Avatar for sxzz
49. takahashim
(Masayoshi Takahashi)		 4343 Avatar for takahashim
50. 2bbb
(2bit)		 3970 Avatar for 2bbb
51. dalance
(Naoya Hatta)		 3887 Avatar for dalance
52. wkentaro
(Kentaro Wada)		 3726 Avatar for wkentaro
53. amatsuda
(Akira Matsuda)		 3711 Avatar for amatsuda
54. toastkidjp
(Toast kid)		 3685 Avatar for toastkidjp
55. tk0miya
(Takeshi KOMIYA)		 3565 Avatar for tk0miya
56. yamadashy
(Kazuki Yamada)		 3558 Avatar for yamadashy
57. himkt
(himkt)		 3553 Avatar for himkt
58. making
(Toshiaki Maki)		 3527 Avatar for making
59. fujiwara
(FUJIWARA Shunichiro)		 3517 Avatar for fujiwara
60. yasulab
(Yohei Yasukawa)		 3504 Avatar for yasulab
61. shinh
(Shinichiro Hamaji)		 3365 Avatar for shinh
62. yug1224
(Yuji Yamaguchi)		 3365 Avatar for yug1224
63. ianlewis
(Ian Lewis)		 3346 Avatar for ianlewis
64. sapphi-red
(翠)		 3285 Avatar for sapphi-red
65. bobbens
(Edgar Simo-Serra)		 3272 Avatar for bobbens
66. harupy
(Harutaka Kawamura)		 3266 Avatar for harupy
67. kmizu
(Kota Mizushima)		 3247 Avatar for kmizu
68. sevenc-nanashi
(Nanashi.)		 3236 Avatar for sevenc-nanashi
69. mashharuki
(Haruki Kondo)		 3202 Avatar for mashharuki
70. komagata
(Masaki Komagata)		 3164 Avatar for komagata
71. suzuki-shunsuke
(Shunsuke Suzuki)		 3112 Avatar for suzuki-shunsuke
72. tmori
(Takashi Mori)		 3072 Avatar for tmori
73. hakuturu583
(Masaya Kataoka)		 3026 Avatar for hakuturu583
74. tkoyama010
(Tetsuo Koyama)		 3014 Avatar for tkoyama010
75. gfx
(FUJI Goro)		 2972 Avatar for gfx
76. zchee
(Koichi Shiraishi)		 2963 Avatar for zchee
77. rigaya
(rigaya)		 2859 Avatar for rigaya
78. bee-san
(Autumn (Bee))		 2820 Avatar for bee-san
79. 1024jp
(1024jp)		 2807 Avatar for 1024jp
80. lambdalisue
(Λlisue)		 2780 Avatar for lambdalisue
81. sotarok
(Sotaro Karasawa)		 2780 Avatar for sotarok
82. kazupon
(kazuya kawaguchi)		 2749 Avatar for kazupon
83. whoisdjam
(Binary)		 2666 Avatar for whoisdjam
84. shimbaco
(Shimba, Koji)		 2646 Avatar for shimbaco
85. keijiro
(Keijiro Takahashi)		 2645 Avatar for keijiro
86. john-rocky
(Daisuke Majima)		 2509 Avatar for john-rocky
87. Jannchie
(Jianqi Pan)		 2505 Avatar for Jannchie
88. kitao
(Takashi Kitao)		 2428 Avatar for kitao
89. ksoichiro
(Soichiro Kashima)		 2428 Avatar for ksoichiro
90. atsushieno
(Atsushi Eno)		 2419 Avatar for atsushieno
91. hajimehoshi
(Hajime Hoshi)		 2399 Avatar for hajimehoshi
92. SebastienGllmt
(Sebastien Guillemot)		 2371 Avatar for SebastienGllmt
93. walf443
(Keiji, Yoshimi)		 2303 Avatar for walf443
94. hi-ogawa
(Hiroshi Ogawa)		 2281 Avatar for hi-ogawa
95. onevcat
(Wei Wang)		 2280 Avatar for onevcat
96. aviatesk
(Shuhei Kadowaki)		 2264 Avatar for aviatesk
97. sigma7863
(Sigma)		 2258 Avatar for sigma7863
98. kawasima
(Yoshitaka Kawashima)		 2245 Avatar for kawasima
99. kishikawakatsumi
(Kishikawa Katsumi)		 2221 Avatar for kishikawakatsumi
100. terasakisatoshi
(Satoshi Terasaki)		 2203 Avatar for terasakisatoshi
101. nateberkopec
(Nate Berkopec)		 2165 Avatar for nateberkopec
102. gkjohnson
(Garrett Johnson)		 2146 Avatar for gkjohnson
103. tatsuhiro-t
(Tatsuhiro Tsujikawa)		 2111 Avatar for tatsuhiro-t
104. skanehira
(skanehira)		 2067 Avatar for skanehira
105. koron
(MURAOKA Taro)		 2059 Avatar for koron
106. enliven17
(cankat)		 2031 Avatar for enliven17
107. AkihiroSuda
(Akihiro Suda)		 2028 Avatar for AkihiroSuda
108. anatawa12
(anatawa12)		 1978 Avatar for anatawa12
109. atztogo
(Atsushi Togo)		 1908 Avatar for atztogo
110. JohnTitor
(Yuki Okushi)		 1881 Avatar for JohnTitor
111. yutkat
(Yuta Katayama)		 1877 Avatar for yutkat
112. Saqoosha
(Saqoosha)		 1875 Avatar for Saqoosha
113. SethRobinson
(Seth Robinson)		 1861 Avatar for SethRobinson
114. tokoik
(Kohe Tokoi)		 1834 Avatar for tokoik
115. Songmu
(Masayuki Matsuki)		 1810 Avatar for Songmu
116. koxudaxi
(Koudai Aono)		 1802 Avatar for koxudaxi
117. Hiroshiba
(Hiroshiba)		 1756 Avatar for Hiroshiba
118. shyouhei
(卜部昌平)		 1744 Avatar for shyouhei
119. cpojer
(Christoph Nakazawa)		 1741 Avatar for cpojer
120. yshrsmz
(Yasuhiro SHIMIZU)		 1738 Avatar for yshrsmz
121. kexi
(Kei Nakayama)		 1720 Avatar for kexi
122. whitphx
(Yuichiro Tachibana (Tsuchiya))		 1709 Avatar for whitphx
123. jsakamoto
()		 1692 Avatar for jsakamoto
124. mpyw
(mpyw)		 1689 Avatar for mpyw
125. konn
(Hiromi Ishii)		 1681 Avatar for konn
126. koic
(Koichi ITO)		 1668 Avatar for koic
127. coliff
(Christian Oliff)		 1663 Avatar for coliff
128. tyoshikawa1106
(Taiki Yoshikawa)		 1657 Avatar for tyoshikawa1106
129. sorairolake
(Shun Sakai)		 1647 Avatar for sorairolake
130. kou
(Sutou Kouhei)		 1645 Avatar for kou
131. RobertTLange
(Robert Tjarko Lange)		 1621 Avatar for RobertTLange
132. norbusan
(Norbert Preining)		 1615 Avatar for norbusan
133. nwtgck
(Ryo Ota)		 1614 Avatar for nwtgck
134. sorah
(Sorah Fukumori)		 1598 Avatar for sorah
135. mopemope
(Yutaka Matsubara)		 1590 Avatar for mopemope
136. miurahr
(Hiroshi Miura)		 1565 Avatar for miurahr
137. kt3k
(Yoshiya Hinosawa)		 1560 Avatar for kt3k
138. sideshowbarker
()		 1560 Avatar for sideshowbarker
139. Shougo
(Shougo)		 1553 Avatar for Shougo
140. rob0pup
(Robin)		 1530 Avatar for rob0pup
141. taisukef
(Taisuke Fukuno)		 1519 Avatar for taisukef
142. seratch
(Kazuhiro Sera)		 1512 Avatar for seratch
143. waylandzhang
(WAYLAND ZHANG)		 1498 Avatar for waylandzhang
144. iebb
(ieb)		 1495 Avatar for iebb
145. TimOliver
(Tim Oliver)		 1481 Avatar for TimOliver
146. peppy
(Dean Herbert)		 1476 Avatar for peppy
147. nwiizo
(nwiizo)		 1475 Avatar for nwiizo
148. nobu
(Nobuyoshi Nakada)		 1475 Avatar for nobu
149. inokawa
()		 1474 Avatar for inokawa
150. shibukawa
(Yoshiki Shibukawa)		 1464 Avatar for shibukawa
151. mika-f
(MOCHIZUKI Kanon)		 1463 Avatar for mika-f
152. kazuho
(Kazuho Oku)		 1445 Avatar for kazuho
153. haya14busa
(haya14busa)		 1434 Avatar for haya14busa
154. pocke
(Masataka Pocke Kuwabara)		 1408 Avatar for pocke
155. yuwata
(Yu Watanabe)		 1382 Avatar for yuwata
156. cho45
(Satoh, Hiroh)		 1382 Avatar for cho45
157. ykzts
(Yamagishi Kazutoshi)		 1382 Avatar for ykzts
158. zapabob
(峯岸 亮)		 1378 Avatar for zapabob
159. babarot
(Masaki ISHIYAMA)		 1375 Avatar for babarot
160. vraestoren
(huok)		 1365 Avatar for vraestoren
161. Comamoca
(Comamoca)		 1365 Avatar for Comamoca
162. kazunori279
(Kaz Sato)		 1336 Avatar for kazunori279
163. udzura
(Kondo Uchio)		 1320 Avatar for udzura
164. Watson1978
(Shizuo Fujita)		 1311 Avatar for Watson1978
165. fygar256
(Taisuke Maekawa)		 1310 Avatar for fygar256
166. lepture
(Hsiaoming Yang)		 1307 Avatar for lepture
167. privatenumber
(Hiroki Osame)		 1300 Avatar for privatenumber
168. tatsuyafujisaki
(Tatsuya Fujisaki)		 1289 Avatar for tatsuyafujisaki
169. rui314
(Rui Ueyama)		 1276 Avatar for rui314
170. craftzdog
(Takuya Matsuyama)		 1273 Avatar for craftzdog
171. syohex
(Shohei YOSHIDA)		 1258 Avatar for syohex
172. mosuka
(Minoru OSUKA)		 1252 Avatar for mosuka
173. XiaomingX
(Y11)		 1236 Avatar for XiaomingX
174. knu
(Akinori Musha)		 1226 Avatar for knu
175. trust-delta
(trust-delta)		 1220 Avatar for trust-delta
176. kaityo256
(Hiroshi Watanabe)		 1215 Avatar for kaityo256
177. c-bata
(c-bata)		 1214 Avatar for c-bata
178. kyamagu
(Kota Yamaguchi)		 1210 Avatar for kyamagu
179. egisatoshi
(Satoshi Egi)		 1208 Avatar for egisatoshi
180. otiai10
(Hiromu OCHIAI)		 1207 Avatar for otiai10
181. hotchpotch
(Yuichi Tateno (secon))		 1195 Avatar for hotchpotch
182. masuidrive
(Yuichiro MASUI)		 1195 Avatar for masuidrive
183. akatsuki105
(Akatsuki)		 1186 Avatar for akatsuki105
184. takahirom
(Takahiro Menju)		 1167 Avatar for takahirom
185. yutannihilation
(Hiroaki Yutani)		 1158 Avatar for yutannihilation
186. neka-nat
(k-tanaka)		 1138 Avatar for neka-nat
187. kazeburo
(Masahiro Nagano)		 1134 Avatar for kazeburo
188. wadackel
(tsuyoshi wada)		 1126 Avatar for wadackel
189. hashrock
(hashrock)		 1122 Avatar for hashrock
190. mayocream
(Mayo Takanashi)		 1117 Avatar for mayocream
191. masarakki
(masarakki)		 1116 Avatar for masarakki
192. yusukebe
(Yusuke Wada)		 1115 Avatar for yusukebe
193. melpon
(melpon)		 1104 Avatar for melpon
194. rhysd
(Linda_pp)		 1104 Avatar for rhysd
195. davetang
(Dave Tang)		 1101 Avatar for davetang
196. yuuki
(Yuuki TSUBOUCHI)		 1096 Avatar for yuuki
197. Makio64
(Makio64)		 1080 Avatar for Makio64
198. haoict
(Hao Nguyen)		 1073 Avatar for haoict
199. noborus
(Noboru Saito)		 1066 Avatar for noborus
200. hatoo
()		 1052 Avatar for hatoo
201. shimat
(shimat)		 1037 Avatar for shimat
202. iAJue
(阿珏)		 1037 Avatar for iAJue
203. jfbastien
(JF Bastien)		 1035 Avatar for jfbastien
204. ota-meshi
(Yosuke Ota)		 1032 Avatar for ota-meshi
205. ariaghora
(Aria Ghora Prabono)		 1023 Avatar for ariaghora
206. nuskey8
(Yusuke Nakada)		 1018 Avatar for nuskey8
207. Kamesuta
(Kamesuta)		 1016 Avatar for Kamesuta
208. hadashiA
(hadashiA)		 1008 Avatar for hadashiA
209. luadebug
(Saikari)		 996 Avatar for luadebug
210. wasabeef
(Daichi Furiya)		 987 Avatar for wasabeef
211. viasnake
(snake)		 986 Avatar for viasnake
212. Jxck
(Jxck)		 985 Avatar for Jxck
213. tigercosmos
(Liu, An-Chi)		 982 Avatar for tigercosmos
214. aki-ph-chem
(Aki)		 977 Avatar for aki-ph-chem
215. eltociear
(Ikko Eltociear Ashimine)		 976 Avatar for eltociear
216. shirakaba
(Jamie Birch)		 973 Avatar for shirakaba
217. take-cheeze
(Takeshi Watanabe)		 967 Avatar for take-cheeze
218. piroor
(YUKI "Piro" Hiroshi)		 962 Avatar for piroor
219. aoi1026
(AOI)		 955 Avatar for aoi1026
220. rinsuki
(rinsuki)		 948 Avatar for rinsuki
221. hewigovens
(Tao Xu)		 946 Avatar for hewigovens
222. daitomanabe
(Daito Manabe)		 945 Avatar for daitomanabe
223. onyx766
(Onyx)		 939 Avatar for onyx766
224. SachaG
(Sacha Greif)		 932 Avatar for SachaG
225. syuilo
(syuilo)		 926 Avatar for syuilo
226. repeatedly
(Masahiro Nakagawa)		 925 Avatar for repeatedly
227. fujita
(FUJITA Tomonori)		 920 Avatar for fujita
228. msakai
(Masahiro Sakai)		 917 Avatar for msakai
229. lacolaco
(Suguru Inatomi)		 912 Avatar for lacolaco
230. moriyoshi
(Moriyoshi Koizumi)		 909 Avatar for moriyoshi
231. KaenBlaze
(Kaen)		 905 Avatar for KaenBlaze
232. watilde
(Daijiro Wachi)		 905 Avatar for watilde
233. ymotongpoo
(Yoshi Yamaguchi)		 894 Avatar for ymotongpoo
234. nakasyou
(Shotaro Nakamura)		 888 Avatar for nakasyou
235. yuto-kazuma
(Yuto Kazuma)		 880 Avatar for yuto-kazuma
236. dai-shi
(Daishi Kato)		 879 Avatar for dai-shi
237. dsh0416
(Delton Ding)		 878 Avatar for dsh0416
238. bokuweb
(bokuweb)		 873 Avatar for bokuweb
239. ngs
(Atsushi NAGASE)		 872 Avatar for ngs
240. dai
(dai)		 868 Avatar for dai
241. franciscop
(Francisco Presencia)		 866 Avatar for franciscop
242. NicolasDorier
(Nicolas Dorier)		 859 Avatar for NicolasDorier
243. uhyo
(uhyo)		 835 Avatar for uhyo
244. momeemt
(Mutsuha Asada)		 834 Avatar for momeemt
245. biohack5079
(sagbi)		 832 Avatar for biohack5079
246. Anionix
(ᅟ᠎S⁢ho͏؜Tᅠakaᅟy⁣an︎aᅠg⁡i)		 812 Avatar for Anionix
247. kentaro
(Kentaro Kuribayashi)		 812 Avatar for kentaro
248. aliceinwire
(Arisu Tachibana)		 803 Avatar for aliceinwire
249. kazu-yamamoto
(Kazu Yamamoto)		 789 Avatar for kazu-yamamoto
250. uezo
(uezo)		 789 Avatar for uezo
251. usualoma
(Taku Amano)		 782 Avatar for usualoma
252. smoogipoo
(Dan Balasescu)		 782 Avatar for smoogipoo
253. fukamachi
(Eitaro Fukamachi)		 779 Avatar for fukamachi
254. cordx56
(Yuki Okamoto)		 774 Avatar for cordx56
255. takano32
(TAKANO Mitsuhiro)		 772 Avatar for takano32
256. tanaikech
(Kanshi TANAIKE)		 771 Avatar for tanaikech

Organizations

Rank Organization Members
1. ruby 9
2. vim-jp 6
3. perl-users-jp 5
4. fluent 5
5. epicgames 5
6. asakusarb 5
7. ruby-no-kai 5
8. reviewdog 4
9. sinsai 4
10. emacs-jp 4