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 2026-01-24 08:06:12 +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 129838 total users in the region and you need at least 212 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. bannzai
(bannzai)		 36673 Avatar for bannzai
2. yuiseki
(yuiseki)		 11760 Avatar for yuiseki
3. manman4
(manman4)		 8475 Avatar for manman4
4. guitarrapc
(Ikiru Yoshizaki)		 6918 Avatar for guitarrapc
5. yanorei32
(Ray Yano | あねてあ)		 6805 Avatar for yanorei32
6. j5ik2o
(Junichi Kato)		 6674 Avatar for j5ik2o
7. sile
(Takeru Ohta)		 6438 Avatar for sile
8. mizchi
(Kotaro Chikuba)		 6289 Avatar for mizchi
9. azu
(azu)		 5744 Avatar for azu
10. ashryanbeats
(Ash Ryan Arnwine)		 5599 Avatar for ashryanbeats
11. miyako
(Keisuke Miyako)		 5191 Avatar for miyako
12. sue445
(Go Sueyoshi)		 5133 Avatar for sue445
13. ryota-murakami
(Ryota Murakami)		 5038 Avatar for ryota-murakami
14. taiki-e
(Taiki Endo)		 4922 Avatar for taiki-e
15. bobbens
(Edgar Simo-Serra)		 4721 Avatar for bobbens
16. suzuki-shunsuke
(Shunsuke Suzuki)		 4664 Avatar for suzuki-shunsuke
17. koriym
(Akihito Koriyama)		 4641 Avatar for koriym
18. shinh
(Shinichiro Hamaji)		 4617 Avatar for shinh
19. hakatashi
(Koki Takahashi)		 4346 Avatar for hakatashi
20. yuki-kimoto
(Yuki Kimoto)		 4276 Avatar for yuki-kimoto
21. yasulab
(Yohei Yasukawa)		 4203 Avatar for yasulab
22. tekezo
(Takayama Fumihiko)		 4126 Avatar for tekezo
23. k1LoW
(Ken’ichiro Oyama)		 3957 Avatar for k1LoW
24. shogo82148
(ICHINOSE Shogo)		 3916 Avatar for shogo82148
25. toastkidjp
(Toast kid)		 3710 Avatar for toastkidjp
26. hsbt
(Hiroshi SHIBATA)		 3628 Avatar for hsbt
27. unhappychoice
(Yuji Ueki)		 3606 Avatar for unhappychoice
28. xuwei-k
(kenji yoshida)		 3595 Avatar for xuwei-k
29. tokuhirom
(Tokuhiro Matsuno)		 3290 Avatar for tokuhirom
30. EdamAme-x
(EdamAmex)		 3148 Avatar for EdamAme-x
31. kentaro
(Kentaro Kuribayashi)		 3131 Avatar for kentaro
32. ianlewis
(Ian Lewis)		 3002 Avatar for ianlewis
33. making
(Toshiaki Maki)		 2836 Avatar for making
34. haya14busa
(haya14busa)		 2765 Avatar for haya14busa
35. harupy
(Harutaka Kawamura)		 2730 Avatar for harupy
36. peppy
(Dean Herbert)		 2725 Avatar for peppy
37. whitphx
(Yuichiro Tachibana (Tsuchiya))		 2714 Avatar for whitphx
38. sapphi-red
(翠)		 2691 Avatar for sapphi-red
39. mcgoon
(van)		 2570 Avatar for mcgoon
40. YumNumm
(Ryotaro Onoue)		 2470 Avatar for YumNumm
41. hajimehoshi
(Hajime Hoshi)		 2464 Avatar for hajimehoshi
42. kou
(Sutou Kouhei)		 2405 Avatar for kou
43. terasakisatoshi
(Satoshi Terasaki)		 2395 Avatar for terasakisatoshi
44. hakuturu583
(Masaya Kataoka)		 2391 Avatar for hakuturu583
45. halogenandtoast
(Matthew Mongeau)		 2308 Avatar for halogenandtoast
46. koxudaxi
(Koudai Aono)		 2292 Avatar for koxudaxi
47. lambdalisue
(Λlisue)		 2283 Avatar for lambdalisue
48. yamadashy
(Kazuki Yamada)		 2209 Avatar for yamadashy
49. AkihiroSuda
(Akihiro Suda)		 2163 Avatar for AkihiroSuda
50. winebarrel
(Genki Sugawara)		 2159 Avatar for winebarrel
51. ursm
(Keita Urashima)		 2122 Avatar for ursm
52. yuwata
(Yu Watanabe)		 2115 Avatar for yuwata
53. PINTO0309
(Katsuya Hyodo)		 2103 Avatar for PINTO0309
54. tmori
(Takashi Mori)		 2040 Avatar for tmori
55. anatawa12
(anatawa12)		 2028 Avatar for anatawa12
56. akatsuki105
(Akatsuki)		 2017 Avatar for akatsuki105
57. amatsuda
(Akira Matsuda)		 2010 Avatar for amatsuda
58. hi-ogawa
(Hiroshi Ogawa)		 1994 Avatar for hi-ogawa
59. fujiwara
(FUJIWARA Shunichiro)		 1987 Avatar for fujiwara
60. sevenc-nanashi
(Nanashi.)		 1973 Avatar for sevenc-nanashi
61. keijiro
(Keijiro Takahashi)		 1969 Avatar for keijiro
62. yutkat
(Yuta Katayama)		 1943 Avatar for yutkat
63. MagicalTux
(Mark Karpelès)		 1942 Avatar for MagicalTux
64. tatsuhiro-t
(Tatsuhiro Tsujikawa)		 1932 Avatar for tatsuhiro-t
65. mattn
(mattn)		 1906 Avatar for mattn
66. yshrsmz
(Yasuhiro SHIMIZU)		 1906 Avatar for yshrsmz
67. sorairolake
(Shun Sakai)		 1897 Avatar for sorairolake
68. kazupon
(kazuya kawaguchi)		 1860 Avatar for kazupon
69. Hiroshiba
(Hiroshiba)		 1858 Avatar for Hiroshiba
70. mopemope
(Yutaka Matsubara)		 1844 Avatar for mopemope
71. mashharuki
(Haruki Kondo)		 1826 Avatar for mashharuki
72. norbusan
(Norbert Preining)		 1814 Avatar for norbusan
73. Jannchie
(Jianqi Pan)		 1790 Avatar for Jannchie
74. taisukef
(Taisuke Fukuno)		 1785 Avatar for taisukef
75. gkjohnson
(Garrett Johnson)		 1766 Avatar for gkjohnson
76. fumiya-kume
(kuu(Fumiya Kume))		 1737 Avatar for fumiya-kume
77. hoochanlon
(123456)		 1712 Avatar for hoochanlon
78. syuilo
(syuilo)		 1696 Avatar for syuilo
79. aviatesk
(Shuhei Kadowaki)		 1695 Avatar for aviatesk
80. atsushieno
(Atsushi Eno)		 1685 Avatar for atsushieno
81. takahirom
(Takahiro Menju)		 1680 Avatar for takahirom
82. kishikawakatsumi
(Kishikawa Katsumi)		 1649 Avatar for kishikawakatsumi
83. dalance
(Naoya Hatta)		 1584 Avatar for dalance
84. miurahr
(Hiroshi Miura)		 1561 Avatar for miurahr
85. cpojer
(Christoph Nakazawa)		 1558 Avatar for cpojer
86. matz
(Yukihiro "Matz" Matsumoto)		 1545 Avatar for matz
87. coliff
(Christian Oliff)		 1541 Avatar for coliff
88. 1024jp
(1024jp)		 1537 Avatar for 1024jp
89. Shougo
(Shougo)		 1530 Avatar for Shougo
90. jsakamoto
()		 1523 Avatar for jsakamoto
91. atztogo
(Atsushi Togo)		 1516 Avatar for atztogo
92. rigaya
(rigaya)		 1476 Avatar for rigaya
93. koic
(Koichi ITO)		 1448 Avatar for koic
94. mayocream
(Mayo Takanashi)		 1435 Avatar for mayocream
95. nobu
(Nobuyoshi Nakada)		 1433 Avatar for nobu
96. eltociear
(Ikko Eltociear Ashimine)		 1405 Avatar for eltociear
97. nobuyuki83
(Nobuyuki Umetani)		 1356 Avatar for nobuyuki83
98. 1amageek
(1amageek)		 1354 Avatar for 1amageek
99. skanehira
(skanehira)		 1349 Avatar for skanehira
100. tkoyama010
(Tetsuo Koyama)		 1273 Avatar for tkoyama010
101. rhysd
(Linda_pp)		 1272 Avatar for rhysd
102. nateberkopec
(Nate Berkopec)		 1264 Avatar for nateberkopec
103. tatsuyafujisaki
(Tatsuya Fujisaki)		 1260 Avatar for tatsuyafujisaki
104. conao3
(Naoya Yamashita)		 1260 Avatar for conao3
105. zcbenz
(Cheng)		 1255 Avatar for zcbenz
106. usualoma
(Taku Amano)		 1245 Avatar for usualoma
107. kaityo256
(Hiroshi Watanabe)		 1239 Avatar for kaityo256
108. zchee
(Koichi Shiraishi)		 1233 Avatar for zchee
109. davetang
(Dave Tang)		 1216 Avatar for davetang
110. ubugeeei
(ubugeeei)		 1209 Avatar for ubugeeei
111. inokawa
()		 1193 Avatar for inokawa
112. kazu-yamamoto
(Kazu Yamamoto)		 1192 Avatar for kazu-yamamoto
113. champierre
(Junya Ishihara)		 1187 Avatar for champierre
114. lhl
(Leonard)		 1165 Avatar for lhl
115. smoogipoo
(Dan Balasescu)		 1164 Avatar for smoogipoo
116. Songmu
(Masayuki Matsuki)		 1155 Avatar for Songmu
117. fa0311
(ふぁ)		 1151 Avatar for fa0311
118. privatenumber
(Hiroki Osame)		 1150 Avatar for privatenumber
119. koron
(MURAOKA Taro)		 1130 Avatar for koron
120. Him188
(Him188)		 1130 Avatar for Him188
121. kateinoigakukun
(Yuta Saito)		 1117 Avatar for kateinoigakukun
122. yutannihilation
(Hiroaki Yutani)		 1113 Avatar for yutannihilation
123. kitao
(Takashi Kitao)		 1113 Avatar for kitao
124. syohex
(Shohei YOSHIDA)		 1110 Avatar for syohex
125. Saul-Mirone
(Mirone)		 1103 Avatar for Saul-Mirone
126. cho45
(Satoh, Hiroh)		 1091 Avatar for cho45
127. ksoichiro
(Soichiro Kashima)		 1080 Avatar for ksoichiro
128. ota-meshi
(Yosuke Ota)		 1077 Avatar for ota-meshi
129. lepture
(Hsiaoming Yang)		 1074 Avatar for lepture
130. momeemt
(Mutsuha Asada)		 1072 Avatar for momeemt
131. siketyan
(Naoki Ikeguchi)		 1067 Avatar for siketyan
132. sideshowbarker
()		 1049 Avatar for sideshowbarker
133. uzulla
(uzulla / Junichi Ishida)		 1041 Avatar for uzulla
134. neka-nat
(k-tanaka)		 1028 Avatar for neka-nat
135. neuecc
(Yoshifumi Kawai)		 1010 Avatar for neuecc
136. wkentaro
(Kentaro Wada)		 1001 Avatar for wkentaro
137. Koras02
(kobiad_ros)		 997 Avatar for Koras02
138. masarakki
(masarakki)		 991 Avatar for masarakki
139. komagata
(Masaki Komagata)		 990 Avatar for komagata
140. fosskers
(Colin Woodbury)		 986 Avatar for fosskers
141. mpyw
(mpyw)		 980 Avatar for mpyw
142. kt3k
(Yoshiya Hinosawa)		 979 Avatar for kt3k
143. int128
(Hidetake Iwata)		 976 Avatar for int128
144. qnighy
(Masaki Hara)		 966 Avatar for qnighy
145. smorimoto
(Sora Morimoto)		 962 Avatar for smorimoto
146. JohnTitor
(Yuki Okushi)		 951 Avatar for JohnTitor
147. noborus
(Noboru Saito)		 939 Avatar for noborus
148. yusukebe
(Yusuke Wada)		 929 Avatar for yusukebe
149. nwiizo
(nwiizo)		 925 Avatar for nwiizo
150. soutaro
(Soutaro Matsumoto)		 918 Avatar for soutaro
151. sigma7863
(Sigma)		 916 Avatar for sigma7863
152. pocke
(Masataka Pocke Kuwabara)		 916 Avatar for pocke
153. AungKaung1928
(Aung Kaung Myat)		 915 Avatar for AungKaung1928
154. sugyan
(Yoshihiro Sugi)		 892 Avatar for sugyan
155. gfx
(FUJI Goro)		 885 Avatar for gfx
156. iAJue
(阿珏)		 882 Avatar for iAJue
157. dai-shi
(Daishi Kato)		 881 Avatar for dai-shi
158. kyamagu
(Kota Yamaguchi)		 881 Avatar for kyamagu
159. shimbaco
(Shimba, Koji)		 880 Avatar for shimbaco
160. sorah
(Sorah Fukumori)		 870 Avatar for sorah
161. matanki-saito
((*`・∀・´*))		 870 Avatar for matanki-saito
162. muukii
(Hiroshi Kimura)		 866 Avatar for muukii
163. shogo4405
(shogo4405)		 855 Avatar for shogo4405
164. nuskey8
(Yusuke Nakada)		 854 Avatar for nuskey8
165. nagadomi
()		 845 Avatar for nagadomi
166. asukaminato0721
(Asuka Minato)		 843 Avatar for asukaminato0721
167. philwo
(Philipp Wollermann)		 841 Avatar for philwo
168. takahashim
(Masayoshi Takahashi)		 839 Avatar for takahashim
169. vraestoren
(huok)		 836 Avatar for vraestoren
170. kmizu
(Kota Mizushima)		 833 Avatar for kmizu
171. NicolasDorier
(Nicolas Dorier)		 823 Avatar for NicolasDorier
172. melpon
(melpon)		 820 Avatar for melpon
173. aliceinwire
(Arisu Tachibana)		 810 Avatar for aliceinwire
174. yowatanabe
(Yoshiyuki Watanabe)		 809 Avatar for yowatanabe
175. wasabeef
(Daichi Furiya)		 807 Avatar for wasabeef
176. piroor
(YUKI "Piro" Hiroshi)		 804 Avatar for piroor
177. ykzts
(Yamagishi Kazutoshi)		 800 Avatar for ykzts
178. dvcrn
(David)		 799 Avatar for dvcrn
179. rinsuki
(rinsuki)		 793 Avatar for rinsuki
180. domenic
(Domenic Denicola)		 789 Avatar for domenic
181. onevcat
(Wei Wang)		 788 Avatar for onevcat
182. seratch
(Kazuhiro Sera)		 783 Avatar for seratch
183. msakai
(Masahiro Sakai)		 781 Avatar for msakai
184. martinheidegger
(Martin Heidegger)		 780 Avatar for martinheidegger
185. zonuexe
(USAMI Kenta)		 778 Avatar for zonuexe
186. AchrafReyani
(Achraf)		 778 Avatar for AchrafReyani
187. audreyfeldroy
(Audrey M. Roy Greenfeld)		 777 Avatar for audreyfeldroy
188. mosuka
(Minoru OSUKA)		 771 Avatar for mosuka
189. cxxxr
(cxxxr)		 769 Avatar for cxxxr
190. Kamesuta
(Kamesuta)		 768 Avatar for Kamesuta
191. Saqoosha
(Saqoosha)		 755 Avatar for Saqoosha
192. XiaomingX
(Y11)		 754 Avatar for XiaomingX
193. ykob
(Yoichi Kobayashi)		 751 Avatar for ykob
194. kurone-kito
(Kuroné Kito (黒音キト))		 748 Avatar for kurone-kito
195. fukamachi
(Eitaro Fukamachi)		 744 Avatar for fukamachi
196. tanaikech
(Kanshi TANAIKE)		 729 Avatar for tanaikech
197. saki4510t
(saki)		 718 Avatar for saki4510t
198. Watson1978
(Shizuo Fujita)		 717 Avatar for Watson1978
199. s1204IT
(Syuugo)		 712 Avatar for s1204IT
200. mumoshu
(Yusuke Kuoka)		 710 Avatar for mumoshu
201. sksat
(sksat)		 708 Avatar for sksat
202. mayuki
(Mayuki Sawatari)		 691 Avatar for mayuki
203. rui314
(Rui Ueyama)		 689 Avatar for rui314
204. baku89
(Baku Hashimoto)		 688 Avatar for baku89
205. babarot
(Masaki ISHIYAMA)		 687 Avatar for babarot
206. xfoxfu
(Yuze Fu)		 684 Avatar for xfoxfu
207. lovyan03
(lovyan03)		 684 Avatar for lovyan03
208. c-bata
(c-bata)		 679 Avatar for c-bata
209. hadashiA
(hadashiA)		 679 Avatar for hadashiA
210. icoxfog417
(Takahiro Kubo)		 675 Avatar for icoxfog417
211. taichi-ishitani
(Taichi Ishitani)		 671 Avatar for taichi-ishitani
212. kazunori279
(Kaz Sato)		 671 Avatar for kazunori279
213. uezo
(uezo)		 666 Avatar for uezo
214. udzura
(Kondo Uchio)		 665 Avatar for udzura
215. luadebug
(Saikari)		 660 Avatar for luadebug
216. hatoo
()		 659 Avatar for hatoo
217. machida
(machida)		 656 Avatar for machida
218. lacolaco
(Suguru Inatomi)		 655 Avatar for lacolaco
219. kazuho
(Kazuho Oku)		 654 Avatar for kazuho
220. andrewmd5
(Andrew Sampson)		 648 Avatar for andrewmd5
221. jmettraux
(John Mettraux)		 644 Avatar for jmettraux
222. konn
(Hiromi Ishii)		 643 Avatar for konn
223. bmf-san
(Kenta Takeuchi)		 641 Avatar for bmf-san
224. hrsh7th
(hrsh7th)		 638 Avatar for hrsh7th
225. shirakaba
(Jamie Birch)		 637 Avatar for shirakaba
226. hashrock
(hashrock)		 635 Avatar for hashrock
227. repeatedly
(Masahiro Nakagawa)		 632 Avatar for repeatedly
228. youtalk
(Yutaka Kondo)		 631 Avatar for youtalk
229. ninoseki
(Manabu Niseki)		 626 Avatar for ninoseki
230. reindex-ot
(Re*Index. (ot_inc))		 617 Avatar for reindex-ot
231. knu
(Akinori Musha)		 614 Avatar for knu
232. dev-yakuza
(DeKu)		 614 Avatar for dev-yakuza
233. shyouhei
(卜部昌平)		 611 Avatar for shyouhei
234. yuuki
(Yuuki TSUBOUCHI)		 608 Avatar for yuuki
235. rikusato0
(Riku Sato)		 603 Avatar for rikusato0
236. ngs
(Atsushi NAGASE)		 600 Avatar for ngs
237. GOROman
(GOROman)		 597 Avatar for GOROman
238. nuta
(Seiya Nuta)		 594 Avatar for nuta
239. hoothin
()		 591 Avatar for hoothin
240. ryohey
(ryohey)		 588 Avatar for ryohey
241. watilde
(Daijiro Wachi)		 588 Avatar for watilde
242. planetchili
(chili)		 582 Avatar for planetchili
243. willnet
(Shinichi Maeshima)		 582 Avatar for willnet
244. hiroppy
(Yuta Hiroto)		 576 Avatar for hiroppy
245. cordx56
(Yuki Okamoto)		 573 Avatar for cordx56
246. mapconcierge
(Taichi FURUHASHI)		 567 Avatar for mapconcierge
247. rmackay9
(Randy Mackay)		 564 Avatar for rmackay9
248. giginet
(Kohki Miki)		 559 Avatar for giginet
249. yug1224
(Yuji Yamaguchi)		 555 Avatar for yug1224
250. otiai10
(Hiromu OCHIAI)		 554 Avatar for otiai10
251. Cloudef
(Jari Vetoniemi)		 553 Avatar for Cloudef
252. Makio64
(Makio64)		 540 Avatar for Makio64
253. kenjinote
(kenji)		 539 Avatar for kenjinote
254. ikwzm
(KAWAZOME Ichiro)		 535 Avatar for ikwzm
255. akinomyoga
(Koichi Murase)		 529 Avatar for akinomyoga
256. nightfairy5831
(nightfairy)		 523 Avatar for nightfairy5831

Organizations

Rank Organization Members
1. ruby 10
2. vim-jp 6
3. ruby-no-kai 5
4. asakusarb 5
5. oss-gate 5
6. llvm 4
7. groonga 4
8. emacs-jp 4
9. web-platform-tests 4
10. perl-users-jp 4