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 2026-02-23 08:12:33 +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 131154 total users in the region and you need at least 215 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)		 35909 Avatar for bannzai
2. yuiseki
(yuiseki)		 13323 Avatar for yuiseki
3. mizchi
(Kotaro Chikuba)		 8470 Avatar for mizchi
4. manman4
(manman4)		 8276 Avatar for manman4
5. sile
(Takeru Ohta)		 7653 Avatar for sile
6. yanorei32
(Ray Yano | あねてあ)		 7442 Avatar for yanorei32
7. j5ik2o
(Junichi Kato)		 7141 Avatar for j5ik2o
8. guitarrapc
(Ikiru Yoshizaki)		 7111 Avatar for guitarrapc
9. tokuhirom
(Tokuhiro Matsuno)		 6649 Avatar for tokuhirom
10. ashryanbeats
(Ash Ryan Arnwine)		 6209 Avatar for ashryanbeats
11. azu
(azu)		 5884 Avatar for azu
12. miyako
(Keisuke Miyako)		 5752 Avatar for miyako
13. ryota-murakami
(Ryota Murakami)		 5571 Avatar for ryota-murakami
14. sue445
(Go Sueyoshi)		 5441 Avatar for sue445
15. bobbens
(Edgar Simo-Serra)		 4834 Avatar for bobbens
16. koriym
(Akihito Koriyama)		 4766 Avatar for koriym
17. yuki-kimoto
(Yuki Kimoto)		 4675 Avatar for yuki-kimoto
18. tekezo
(Takayama Fumihiko)		 4653 Avatar for tekezo
19. shinh
(Shinichiro Hamaji)		 4615 Avatar for shinh
20. taiki-e
(Taiki Endo)		 4503 Avatar for taiki-e
21. suzuki-shunsuke
(Shunsuke Suzuki)		 4487 Avatar for suzuki-shunsuke
22. hakatashi
(Koki Takahashi)		 4289 Avatar for hakatashi
23. yasulab
(Yohei Yasukawa)		 4118 Avatar for yasulab
24. k1LoW
(Ken’ichiro Oyama)		 4114 Avatar for k1LoW
25. shogo82148
(ICHINOSE Shogo)		 4068 Avatar for shogo82148
26. unhappychoice
(Yuji Ueki)		 4002 Avatar for unhappychoice
27. xuwei-k
(kenji yoshida)		 3839 Avatar for xuwei-k
28. toastkidjp
(Toast kid)		 3669 Avatar for toastkidjp
29. hsbt
(Hiroshi SHIBATA)		 3647 Avatar for hsbt
30. halogenandtoast
(Matthew Mongeau)		 3345 Avatar for halogenandtoast
31. EdamAme-x
(EdamAmex)		 3119 Avatar for EdamAme-x
32. ianlewis
(Ian Lewis)		 3088 Avatar for ianlewis
33. making
(Toshiaki Maki)		 2902 Avatar for making
34. harupy
(Harutaka Kawamura)		 2872 Avatar for harupy
35. amatsuda
(Akira Matsuda)		 2833 Avatar for amatsuda
36. sapphi-red
(翠)		 2729 Avatar for sapphi-red
37. haya14busa
(haya14busa)		 2726 Avatar for haya14busa
38. lambdalisue
(Λlisue)		 2621 Avatar for lambdalisue
39. kitao
(Takashi Kitao)		 2603 Avatar for kitao
40. hajimehoshi
(Hajime Hoshi)		 2495 Avatar for hajimehoshi
41. terasakisatoshi
(Satoshi Terasaki)		 2463 Avatar for terasakisatoshi
42. peppy
(Dean Herbert)		 2392 Avatar for peppy
43. whitphx
(Yuichiro Tachibana (Tsuchiya))		 2361 Avatar for whitphx
44. mattn
(mattn)		 2349 Avatar for mattn
45. PINTO0309
(Katsuya Hyodo)		 2346 Avatar for PINTO0309
46. hakuturu583
(Masaya Kataoka)		 2326 Avatar for hakuturu583
47. winebarrel
(Genki Sugawara)		 2322 Avatar for winebarrel
48. mcgoon
(van)		 2307 Avatar for mcgoon
49. YumNumm
(Ryotaro Onoue)		 2303 Avatar for YumNumm
50. kou
(Sutou Kouhei)		 2202 Avatar for kou
51. MagicalTux
(Mark Karpelès)		 2180 Avatar for MagicalTux
52. yamadashy
(Kazuki Yamada)		 2157 Avatar for yamadashy
53. sorairolake
(Shun Sakai)		 2112 Avatar for sorairolake
54. sevenc-nanashi
(Nanashi.)		 2111 Avatar for sevenc-nanashi
55. AkihiroSuda
(Akihiro Suda)		 2110 Avatar for AkihiroSuda
56. anatawa12
(anatawa12)		 2076 Avatar for anatawa12
57. mashharuki
(Haruki Kondo)		 2074 Avatar for mashharuki
58. koxudaxi
(Koudai Aono)		 2037 Avatar for koxudaxi
59. yuwata
(Yu Watanabe)		 2023 Avatar for yuwata
60. fujiwara
(FUJIWARA Shunichiro)		 2016 Avatar for fujiwara
61. akatsuki105
(Akatsuki)		 2004 Avatar for akatsuki105
62. hi-ogawa
(Hiroshi Ogawa)		 1997 Avatar for hi-ogawa
63. aviatesk
(Shuhei Kadowaki)		 1984 Avatar for aviatesk
64. hoochanlon
(123456)		 1967 Avatar for hoochanlon
65. gkjohnson
(Garrett Johnson)		 1963 Avatar for gkjohnson
66. atsushieno
(Atsushi Eno)		 1952 Avatar for atsushieno
67. tmori
(Takashi Mori)		 1952 Avatar for tmori
68. keijiro
(Keijiro Takahashi)		 1937 Avatar for keijiro
69. yshrsmz
(Yasuhiro SHIMIZU)		 1905 Avatar for yshrsmz
70. yutkat
(Yuta Katayama)		 1892 Avatar for yutkat
71. Hiroshiba
(Hiroshiba)		 1868 Avatar for Hiroshiba
72. mopemope
(Yutaka Matsubara)		 1862 Avatar for mopemope
73. ursm
(Keita Urashima)		 1844 Avatar for ursm
74. tatsuhiro-t
(Tatsuhiro Tsujikawa)		 1808 Avatar for tatsuhiro-t
75. kazupon
(kazuya kawaguchi)		 1779 Avatar for kazupon
76. Jannchie
(Jianqi Pan)		 1756 Avatar for Jannchie
77. 1amageek
(1amageek)		 1755 Avatar for 1amageek
78. norbusan
(Norbert Preining)		 1751 Avatar for norbusan
79. taisukef
(Taisuke Fukuno)		 1726 Avatar for taisukef
80. fumiya-kume
(kuu(Fumiya Kume))		 1726 Avatar for fumiya-kume
81. coliff
(Christian Oliff)		 1710 Avatar for coliff
82. conao3
(Naoya Yamashita)		 1698 Avatar for conao3
83. cpojer
(Christoph Nakazawa)		 1697 Avatar for cpojer
84. 1024jp
(1024jp)		 1696 Avatar for 1024jp
85. kishikawakatsumi
(Kishikawa Katsumi)		 1644 Avatar for kishikawakatsumi
86. syuilo
(syuilo)		 1631 Avatar for syuilo
87. matz
(Yukihiro "Matz" Matsumoto)		 1602 Avatar for matz
88. miurahr
(Hiroshi Miura)		 1595 Avatar for miurahr
89. dalance
(Naoya Hatta)		 1555 Avatar for dalance
90. mayocream
(Mayo Takanashi)		 1554 Avatar for mayocream
91. ksoichiro
(Soichiro Kashima)		 1531 Avatar for ksoichiro
92. tkoyama010
(Tetsuo Koyama)		 1495 Avatar for tkoyama010
93. jsakamoto
()		 1468 Avatar for jsakamoto
94. takahirom
(Takahiro Menju)		 1452 Avatar for takahirom
95. nobu
(Nobuyoshi Nakada)		 1441 Avatar for nobu
96. nateberkopec
(Nate Berkopec)		 1433 Avatar for nateberkopec
97. skanehira
(skanehira)		 1426 Avatar for skanehira
98. atztogo
(Atsushi Togo)		 1423 Avatar for atztogo
99. Shougo
(Shougo)		 1399 Avatar for Shougo
100. rigaya
(rigaya)		 1397 Avatar for rigaya
101. lhl
(Leonard)		 1346 Avatar for lhl
102. Songmu
(Masayuki Matsuki)		 1294 Avatar for Songmu
103. koic
(Koichi ITO)		 1289 Avatar for koic
104. davetang
(Dave Tang)		 1285 Avatar for davetang
105. yutannihilation
(Hiroaki Yutani)		 1281 Avatar for yutannihilation
106. cho45
(Satoh, Hiroh)		 1281 Avatar for cho45
107. nobuyuki83
(Nobuyuki Umetani)		 1279 Avatar for nobuyuki83
108. kaityo256
(Hiroshi Watanabe)		 1265 Avatar for kaityo256
109. rhysd
(Linda_pp)		 1245 Avatar for rhysd
110. ubugeeei
(ubugeeei)		 1240 Avatar for ubugeeei
111. kateinoigakukun
(Yuta Saito)		 1239 Avatar for kateinoigakukun
112. shimbaco
(Shimba, Koji)		 1238 Avatar for shimbaco
113. sideshowbarker
()		 1233 Avatar for sideshowbarker
114. zchee
(Koichi Shiraishi)		 1218 Avatar for zchee
115. onevcat
(Wei Wang)		 1215 Avatar for onevcat
116. inokawa
()		 1206 Avatar for inokawa
117. gfx
(FUJI Goro)		 1201 Avatar for gfx
118. eltociear
(Ikko Eltociear Ashimine)		 1196 Avatar for eltociear
119. nwiizo
(nwiizo)		 1187 Avatar for nwiizo
120. koron
(MURAOKA Taro)		 1186 Avatar for koron
121. privatenumber
(Hiroki Osame)		 1155 Avatar for privatenumber
122. JohnTitor
(Yuki Okushi)		 1150 Avatar for JohnTitor
123. usualoma
(Taku Amano)		 1133 Avatar for usualoma
124. zcbenz
(Cheng)		 1131 Avatar for zcbenz
125. komagata
(Masaki Komagata)		 1122 Avatar for komagata
126. neka-nat
(k-tanaka)		 1120 Avatar for neka-nat
127. syohex
(Shohei YOSHIDA)		 1115 Avatar for syohex
128. smoogipoo
(Dan Balasescu)		 1112 Avatar for smoogipoo
129. tatsuyafujisaki
(Tatsuya Fujisaki)		 1093 Avatar for tatsuyafujisaki
130. ota-meshi
(Yosuke Ota)		 1085 Avatar for ota-meshi
131. champierre
(Junya Ishihara)		 1076 Avatar for champierre
132. Saqoosha
(Saqoosha)		 1075 Avatar for Saqoosha
133. kmizu
(Kota Mizushima)		 1071 Avatar for kmizu
134. momeemt
(Mutsuha Asada)		 1065 Avatar for momeemt
135. uzulla
(uzulla / Junichi Ishida)		 1046 Avatar for uzulla
136. masarakki
(masarakki)		 1039 Avatar for masarakki
137. kazu-yamamoto
(Kazu Yamamoto)		 1038 Avatar for kazu-yamamoto
138. luadebug
(Saikari)		 1030 Avatar for luadebug
139. sorah
(Sorah Fukumori)		 1001 Avatar for sorah
140. wkentaro
(Kentaro Wada)		 1001 Avatar for wkentaro
141. lestrrat
(lestrrat)		 996 Avatar for lestrrat
142. Saul-Mirone
(Mirone)		 994 Avatar for Saul-Mirone
143. mizzy
(Gosuke Miyashita)		 991 Avatar for mizzy
144. fa0311
(ふぁ)		 980 Avatar for fa0311
145. mpyw
(mpyw)		 979 Avatar for mpyw
146. ykzts
(Yamagishi Kazutoshi)		 975 Avatar for ykzts
147. miurla
(Yoshiki Miura)		 972 Avatar for miurla
148. siketyan
(Naoki Ikeguchi)		 968 Avatar for siketyan
149. neuecc
(Yoshifumi Kawai)		 966 Avatar for neuecc
150. sigma7863
(Sigma)		 965 Avatar for sigma7863
151. Him188
(Him188)		 953 Avatar for Him188
152. noborus
(Noboru Saito)		 950 Avatar for noborus
153. pocke
(Masataka Pocke Kuwabara)		 936 Avatar for pocke
154. msakai
(Masahiro Sakai)		 915 Avatar for msakai
155. nagadomi
()		 913 Avatar for nagadomi
156. AungKaung1928
(Aung Kaung Myat)		 912 Avatar for AungKaung1928
157. smorimoto
(Sora Morimoto)		 912 Avatar for smorimoto
158. yusukebe
(Yusuke Wada)		 908 Avatar for yusukebe
159. qnighy
(Masaki Hara)		 905 Avatar for qnighy
160. lepture
(Hsiaoming Yang)		 904 Avatar for lepture
161. soutaro
(Soutaro Matsumoto)		 903 Avatar for soutaro
162. fygar256
(Taisuke Maekawa)		 893 Avatar for fygar256
163. kt3k
(Yoshiya Hinosawa)		 891 Avatar for kt3k
164. dvcrn
(David)		 890 Avatar for dvcrn
165. sugyan
(Yoshihiro Sugi)		 883 Avatar for sugyan
166. kyamagu
(Kota Yamaguchi)		 877 Avatar for kyamagu
167. vraestoren
(huok)		 868 Avatar for vraestoren
168. seratch
(Kazuhiro Sera)		 865 Avatar for seratch
169. mosuka
(Minoru OSUKA)		 865 Avatar for mosuka
170. Kamesuta
(Kamesuta)		 857 Avatar for Kamesuta
171. int128
(Hidetake Iwata)		 856 Avatar for int128
172. piroor
(YUKI "Piro" Hiroshi)		 848 Avatar for piroor
173. konn
(Hiromi Ishii)		 847 Avatar for konn
174. philwo
(Philipp Wollermann)		 845 Avatar for philwo
175. dai-shi
(Daishi Kato)		 834 Avatar for dai-shi
176. Koras02
(kobiad_ros)		 833 Avatar for Koras02
177. shogo4405
(shogo4405)		 830 Avatar for shogo4405
178. iAJue
(阿珏)		 826 Avatar for iAJue
179. matanki-saito
((*`・∀・´*))		 825 Avatar for matanki-saito
180. asukaminato0721
(Asuka Minato)		 820 Avatar for asukaminato0721
181. takahashim
(Masayoshi Takahashi)		 819 Avatar for takahashim
182. otiai10
(Hiromu OCHIAI)		 818 Avatar for otiai10
183. fosskers
(Colin Woodbury)		 815 Avatar for fosskers
184. nuskey8
(Yusuke Nakada)		 812 Avatar for nuskey8
185. aliceinwire
(Arisu Tachibana)		 810 Avatar for aliceinwire
186. wasabeef
(Daichi Furiya)		 808 Avatar for wasabeef
187. icoxfog417
(Takahiro Kubo)		 808 Avatar for icoxfog417
188. NicolasDorier
(Nicolas Dorier)		 806 Avatar for NicolasDorier
189. yowatanabe
(Yoshiyuki Watanabe)		 803 Avatar for yowatanabe
190. hatoo
()		 801 Avatar for hatoo
191. AchrafReyani
(Achraf)		 799 Avatar for AchrafReyani
192. zonuexe
(USAMI Kenta)		 797 Avatar for zonuexe
193. walf443
(Keiji, Yoshimi)		 792 Avatar for walf443
194. domenic
(Domenic Denicola)		 790 Avatar for domenic
195. rinsuki
(rinsuki)		 790 Avatar for rinsuki
196. muukii
(Hiroshi Kimura)		 790 Avatar for muukii
197. sksat
(sksat)		 781 Avatar for sksat
198. udzura
(Kondo Uchio)		 780 Avatar for udzura
199. martinheidegger
(Martin Heidegger)		 774 Avatar for martinheidegger
200. tanaikech
(Kanshi TANAIKE)		 768 Avatar for tanaikech
201. nuta
(Seiya Nuta)		 768 Avatar for nuta
202. XiaomingX
(Y11)		 757 Avatar for XiaomingX
203. ykob
(Yoichi Kobayashi)		 757 Avatar for ykob
204. mumoshu
(Yusuke Kuoka)		 756 Avatar for mumoshu
205. fukamachi
(Eitaro Fukamachi)		 751 Avatar for fukamachi
206. melpon
(melpon)		 748 Avatar for melpon
207. uezo
(uezo)		 747 Avatar for uezo
208. wass08
(Wassim SAMAD)		 738 Avatar for wass08
209. repeatedly
(Masahiro Nakagawa)		 725 Avatar for repeatedly
210. planetchili
(chili)		 722 Avatar for planetchili
211. Watson1978
(Shizuo Fujita)		 720 Avatar for Watson1978
212. hadashiA
(hadashiA)		 719 Avatar for hadashiA
213. shyouhei
(卜部昌平)		 719 Avatar for shyouhei
214. willnet
(Shinichi Maeshima)		 717 Avatar for willnet
215. baku89
(Baku Hashimoto)		 717 Avatar for baku89
216. machida
(machida)		 711 Avatar for machida
217. kurone-kito
(Kuroné Kito (黒音キト))		 711 Avatar for kurone-kito
218. cxxxr
(cxxxr)		 709 Avatar for cxxxr
219. xfoxfu
(Yuze Fu)		 706 Avatar for xfoxfu
220. kazuho
(Kazuho Oku)		 690 Avatar for kazuho
221. nwtgck
(Ryo Ota)		 689 Avatar for nwtgck
222. kentaro
(Kentaro Kuribayashi)		 670 Avatar for kentaro
223. s1204IT
(Syuugo)		 666 Avatar for s1204IT
224. kazunori279
(Kaz Sato)		 664 Avatar for kazunori279
225. hashrock
(hashrock)		 659 Avatar for hashrock
226. jmettraux
(John Mettraux)		 654 Avatar for jmettraux
227. lacolaco
(Suguru Inatomi)		 653 Avatar for lacolaco
228. lovyan03
(lovyan03)		 649 Avatar for lovyan03
229. uhyo
(uhyo)		 641 Avatar for uhyo
230. knu
(Akinori Musha)		 641 Avatar for knu
231. c-bata
(c-bata)		 640 Avatar for c-bata
232. ryohey
(ryohey)		 629 Avatar for ryohey
233. andrewmd5
(Andrew Sampson)		 623 Avatar for andrewmd5
234. ngs
(Atsushi NAGASE)		 618 Avatar for ngs
235. kenjinote
(kenji)		 615 Avatar for kenjinote
236. hoothin
()		 604 Avatar for hoothin
237. yuuki
(Yuuki TSUBOUCHI)		 603 Avatar for yuuki
238. reindex-ot
(Re*Index. (ot_inc))		 602 Avatar for reindex-ot
239. ninoseki
(Manabu Niseki)		 598 Avatar for ninoseki
240. mayuki
(Mayuki Sawatari)		 597 Avatar for mayuki
241. shirakaba
(Jamie Birch)		 595 Avatar for shirakaba
242. masui
(Toshiyuki Masui)		 595 Avatar for masui
243. watilde
(Daijiro Wachi)		 593 Avatar for watilde
244. biohack5079
(sagbi)		 591 Avatar for biohack5079
245. daitomanabe
(Daito Manabe)		 589 Avatar for daitomanabe
246. nakasyou
(Shotaro Nakamura)		 589 Avatar for nakasyou
247. cordx56
(Yuki Okamoto)		 588 Avatar for cordx56
248. taichi-ishitani
(Taichi Ishitani)		 582 Avatar for taichi-ishitani
249. rmackay9
(Randy Mackay)		 580 Avatar for rmackay9
250. youtalk
(Yutaka Kondo)		 577 Avatar for youtalk
251. hiroppy
(Yuta Hiroto)		 576 Avatar for hiroppy
252. wadackel
(tsuyoshi wada)		 570 Avatar for wadackel
253. SachaG
(Sacha Greif)		 566 Avatar for SachaG
254. rikusato0
(Riku Sato)		 566 Avatar for rikusato0
255. rui314
(Rui Ueyama)		 555 Avatar for rui314
256. akinomyoga
(Koichi Murase)		 546 Avatar for akinomyoga

Organizations

Rank Organization Members
1. ruby 10
2. vim-jp 6
3. asakusarb 5
4. oss-gate 5
5. perl-users-jp 5
6. ruby-no-kai 5
7. reviewdog 4
8. blosxom-fanatics 4
9. groonga 4
10. emacs-jp 4