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 2026-02-28 12:00:40 +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 131417 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)		 35912 Avatar for bannzai
2. yuiseki
(yuiseki)		 13782 Avatar for yuiseki
3. mizchi
(Kotaro Chikuba)		 8749 Avatar for mizchi
4. manman4
(manman4)		 8327 Avatar for manman4
5. sile
(Takeru Ohta)		 7834 Avatar for sile
6. yanorei32
(Ray Yano | あねてあ)		 7558 Avatar for yanorei32
7. j5ik2o
(Junichi Kato)		 7342 Avatar for j5ik2o
8. tokuhirom
(Tokuhiro Matsuno)		 7339 Avatar for tokuhirom
9. guitarrapc
(Ikiru Yoshizaki)		 7232 Avatar for guitarrapc
10. ashryanbeats
(Ash Ryan Arnwine)		 6320 Avatar for ashryanbeats
11. azu
(azu)		 5981 Avatar for azu
12. miyako
(Keisuke Miyako)		 5855 Avatar for miyako
13. ryota-murakami
(Ryota Murakami)		 5637 Avatar for ryota-murakami
14. sue445
(Go Sueyoshi)		 5456 Avatar for sue445
15. bobbens
(Edgar Simo-Serra)		 4884 Avatar for bobbens
16. yuki-kimoto
(Yuki Kimoto)		 4818 Avatar for yuki-kimoto
17. koriym
(Akihito Koriyama)		 4792 Avatar for koriym
18. taiki-e
(Taiki Endo)		 4691 Avatar for taiki-e
19. tekezo
(Takayama Fumihiko)		 4657 Avatar for tekezo
20. shinh
(Shinichiro Hamaji)		 4622 Avatar for shinh
21. suzuki-shunsuke
(Shunsuke Suzuki)		 4549 Avatar for suzuki-shunsuke
22. hakatashi
(Koki Takahashi)		 4399 Avatar for hakatashi
23. k1LoW
(Ken’ichiro Oyama)		 4194 Avatar for k1LoW
24. yasulab
(Yohei Yasukawa)		 4141 Avatar for yasulab
25. shogo82148
(ICHINOSE Shogo)		 4083 Avatar for shogo82148
26. unhappychoice
(Yuji Ueki)		 4041 Avatar for unhappychoice
27. xuwei-k
(kenji yoshida)		 3940 Avatar for xuwei-k
28. toastkidjp
(Toast kid)		 3719 Avatar for toastkidjp
29. hsbt
(Hiroshi SHIBATA)		 3694 Avatar for hsbt
30. halogenandtoast
(Matthew Mongeau)		 3359 Avatar for halogenandtoast
31. EdamAme-x
(EdamAmex)		 3125 Avatar for EdamAme-x
32. ianlewis
(Ian Lewis)		 3104 Avatar for ianlewis
33. making
(Toshiaki Maki)		 2957 Avatar for making
34. amatsuda
(Akira Matsuda)		 2950 Avatar for amatsuda
35. harupy
(Harutaka Kawamura)		 2923 Avatar for harupy
36. sapphi-red
(翠)		 2781 Avatar for sapphi-red
37. haya14busa
(haya14busa)		 2726 Avatar for haya14busa
38. lambdalisue
(Λlisue)		 2632 Avatar for lambdalisue
39. terasakisatoshi
(Satoshi Terasaki)		 2566 Avatar for terasakisatoshi
40. hajimehoshi
(Hajime Hoshi)		 2511 Avatar for hajimehoshi
41. peppy
(Dean Herbert)		 2412 Avatar for peppy
42. fumiya-kume
(kuu(Fumiya Kume))		 2397 Avatar for fumiya-kume
43. mattn
(mattn)		 2388 Avatar for mattn
44. winebarrel
(Genki Sugawara)		 2373 Avatar for winebarrel
45. whitphx
(Yuichiro Tachibana (Tsuchiya))		 2366 Avatar for whitphx
46. PINTO0309
(Katsuya Hyodo)		 2365 Avatar for PINTO0309
47. hakuturu583
(Masaya Kataoka)		 2343 Avatar for hakuturu583
48. mcgoon
(van)		 2307 Avatar for mcgoon
49. YumNumm
(Ryotaro Onoue)		 2303 Avatar for YumNumm
50. kou
(Sutou Kouhei)		 2233 Avatar for kou
51. yamadashy
(Kazuki Yamada)		 2191 Avatar for yamadashy
52. MagicalTux
(Mark Karpelès)		 2187 Avatar for MagicalTux
53. sevenc-nanashi
(Nanashi.)		 2177 Avatar for sevenc-nanashi
54. AkihiroSuda
(Akihiro Suda)		 2150 Avatar for AkihiroSuda
55. mashharuki
(Haruki Kondo)		 2136 Avatar for mashharuki
56. sorairolake
(Shun Sakai)		 2135 Avatar for sorairolake
57. fujiwara
(FUJIWARA Shunichiro)		 2117 Avatar for fujiwara
58. anatawa12
(anatawa12)		 2089 Avatar for anatawa12
59. yuwata
(Yu Watanabe)		 2047 Avatar for yuwata
60. koxudaxi
(Koudai Aono)		 2042 Avatar for koxudaxi
61. hoochanlon
(123456)		 2023 Avatar for hoochanlon
62. aviatesk
(Shuhei Kadowaki)		 2013 Avatar for aviatesk
63. hi-ogawa
(Hiroshi Ogawa)		 2012 Avatar for hi-ogawa
64. akatsuki105
(Akatsuki)		 2004 Avatar for akatsuki105
65. gkjohnson
(Garrett Johnson)		 2002 Avatar for gkjohnson
66. atsushieno
(Atsushi Eno)		 1979 Avatar for atsushieno
67. tmori
(Takashi Mori)		 1973 Avatar for tmori
68. keijiro
(Keijiro Takahashi)		 1967 Avatar for keijiro
69. ursm
(Keita Urashima)		 1927 Avatar for ursm
70. yutkat
(Yuta Katayama)		 1912 Avatar for yutkat
71. yshrsmz
(Yasuhiro SHIMIZU)		 1909 Avatar for yshrsmz
72. Hiroshiba
(Hiroshiba)		 1894 Avatar for Hiroshiba
73. mopemope
(Yutaka Matsubara)		 1862 Avatar for mopemope
74. tatsuhiro-t
(Tatsuhiro Tsujikawa)		 1829 Avatar for tatsuhiro-t
75. coliff
(Christian Oliff)		 1818 Avatar for coliff
76. conao3
(Naoya Yamashita)		 1797 Avatar for conao3
77. kazupon
(kazuya kawaguchi)		 1792 Avatar for kazupon
78. 1amageek
(1amageek)		 1784 Avatar for 1amageek
79. 1024jp
(1024jp)		 1777 Avatar for 1024jp
80. Jannchie
(Jianqi Pan)		 1763 Avatar for Jannchie
81. norbusan
(Norbert Preining)		 1749 Avatar for norbusan
82. taisukef
(Taisuke Fukuno)		 1747 Avatar for taisukef
83. cpojer
(Christoph Nakazawa)		 1705 Avatar for cpojer
84. kishikawakatsumi
(Kishikawa Katsumi)		 1650 Avatar for kishikawakatsumi
85. matz
(Yukihiro "Matz" Matsumoto)		 1647 Avatar for matz
86. syuilo
(syuilo)		 1633 Avatar for syuilo
87. miurahr
(Hiroshi Miura)		 1633 Avatar for miurahr
88. dalance
(Naoya Hatta)		 1608 Avatar for dalance
89. mayocream
(Mayo Takanashi)		 1555 Avatar for mayocream
90. ksoichiro
(Soichiro Kashima)		 1542 Avatar for ksoichiro
91. tkoyama010
(Tetsuo Koyama)		 1515 Avatar for tkoyama010
92. skanehira
(skanehira)		 1508 Avatar for skanehira
93. jsakamoto
()		 1479 Avatar for jsakamoto
94. tatsuyafujisaki
(Tatsuya Fujisaki)		 1477 Avatar for tatsuyafujisaki
95. atztogo
(Atsushi Togo)		 1462 Avatar for atztogo
96. takahirom
(Takahiro Menju)		 1454 Avatar for takahirom
97. nobu
(Nobuyoshi Nakada)		 1449 Avatar for nobu
98. nateberkopec
(Nate Berkopec)		 1446 Avatar for nateberkopec
99. Shougo
(Shougo)		 1422 Avatar for Shougo
100. lhl
(Leonard)		 1415 Avatar for lhl
101. rigaya
(rigaya)		 1407 Avatar for rigaya
102. mumoshu
(Yusuke Kuoka)		 1346 Avatar for mumoshu
103. Songmu
(Masayuki Matsuki)		 1315 Avatar for Songmu
104. koic
(Koichi ITO)		 1314 Avatar for koic
105. kaityo256
(Hiroshi Watanabe)		 1305 Avatar for kaityo256
106. yutannihilation
(Hiroaki Yutani)		 1304 Avatar for yutannihilation
107. davetang
(Dave Tang)		 1296 Avatar for davetang
108. sideshowbarker
()		 1294 Avatar for sideshowbarker
109. nobuyuki83
(Nobuyuki Umetani)		 1288 Avatar for nobuyuki83
110. cho45
(Satoh, Hiroh)		 1283 Avatar for cho45
111. ubugeeei
(ubugeeei)		 1283 Avatar for ubugeeei
112. kmizu
(Kota Mizushima)		 1272 Avatar for kmizu
113. rhysd
(Linda_pp)		 1272 Avatar for rhysd
114. gfx
(FUJI Goro)		 1264 Avatar for gfx
115. kateinoigakukun
(Yuta Saito)		 1253 Avatar for kateinoigakukun
116. privatenumber
(Hiroki Osame)		 1246 Avatar for privatenumber
117. zchee
(Koichi Shiraishi)		 1240 Avatar for zchee
118. shimbaco
(Shimba, Koji)		 1238 Avatar for shimbaco
119. inokawa
()		 1231 Avatar for inokawa
120. onevcat
(Wei Wang)		 1229 Avatar for onevcat
121. koron
(MURAOKA Taro)		 1202 Avatar for koron
122. eltociear
(Ikko Eltociear Ashimine)		 1201 Avatar for eltociear
123. JohnTitor
(Yuki Okushi)		 1198 Avatar for JohnTitor
124. nwiizo
(nwiizo)		 1194 Avatar for nwiizo
125. Saqoosha
(Saqoosha)		 1169 Avatar for Saqoosha
126. zcbenz
(Cheng)		 1147 Avatar for zcbenz
127. komagata
(Masaki Komagata)		 1147 Avatar for komagata
128. usualoma
(Taku Amano)		 1134 Avatar for usualoma
129. neka-nat
(k-tanaka)		 1131 Avatar for neka-nat
130. syohex
(Shohei YOSHIDA)		 1131 Avatar for syohex
131. smoogipoo
(Dan Balasescu)		 1121 Avatar for smoogipoo
132. ota-meshi
(Yosuke Ota)		 1109 Avatar for ota-meshi
133. vraestoren
(huok)		 1082 Avatar for vraestoren
134. lestrrat
(lestrrat)		 1067 Avatar for lestrrat
135. momeemt
(Mutsuha Asada)		 1065 Avatar for momeemt
136. luadebug
(Saikari)		 1049 Avatar for luadebug
137. uzulla
(uzulla / Junichi Ishida)		 1048 Avatar for uzulla
138. kazu-yamamoto
(Kazu Yamamoto)		 1044 Avatar for kazu-yamamoto
139. masarakki
(masarakki)		 1039 Avatar for masarakki
140. mizzy
(Gosuke Miyashita)		 1034 Avatar for mizzy
141. sorah
(Sorah Fukumori)		 1034 Avatar for sorah
142. wkentaro
(Kentaro Wada)		 1025 Avatar for wkentaro
143. ykzts
(Yamagishi Kazutoshi)		 998 Avatar for ykzts
144. Saul-Mirone
(Mirone)		 994 Avatar for Saul-Mirone
145. fa0311
(ふぁ)		 987 Avatar for fa0311
146. mpyw
(mpyw)		 979 Avatar for mpyw
147. neuecc
(Yoshifumi Kawai)		 973 Avatar for neuecc
148. kitao
(Takashi Kitao)		 972 Avatar for kitao
149. miurla
(Yoshiki Miura)		 972 Avatar for miurla
150. siketyan
(Naoki Ikeguchi)		 971 Avatar for siketyan
151. sigma7863
(Sigma)		 966 Avatar for sigma7863
152. noborus
(Noboru Saito)		 963 Avatar for noborus
153. Him188
(Him188)		 958 Avatar for Him188
154. pocke
(Masataka Pocke Kuwabara)		 958 Avatar for pocke
155. fygar256
(Taisuke Maekawa)		 940 Avatar for fygar256
156. kyamagu
(Kota Yamaguchi)		 934 Avatar for kyamagu
157. walf443
(Keiji, Yoshimi)		 926 Avatar for walf443
158. msakai
(Masahiro Sakai)		 926 Avatar for msakai
159. soutaro
(Soutaro Matsumoto)		 921 Avatar for soutaro
160. nagadomi
()		 919 Avatar for nagadomi
161. qnighy
(Masaki Hara)		 915 Avatar for qnighy
162. smorimoto
(Sora Morimoto)		 914 Avatar for smorimoto
163. lepture
(Hsiaoming Yang)		 914 Avatar for lepture
164. yusukebe
(Yusuke Wada)		 912 Avatar for yusukebe
165. AungKaung1928
(Aung Kaung Myat)		 912 Avatar for AungKaung1928
166. sksat
(sksat)		 902 Avatar for sksat
167. kt3k
(Yoshiya Hinosawa)		 899 Avatar for kt3k
168. dvcrn
(David)		 890 Avatar for dvcrn
169. sugyan
(Yoshihiro Sugi)		 889 Avatar for sugyan
170. otiai10
(Hiromu OCHIAI)		 887 Avatar for otiai10
171. Kamesuta
(Kamesuta)		 887 Avatar for Kamesuta
172. seratch
(Kazuhiro Sera)		 884 Avatar for seratch
173. int128
(Hidetake Iwata)		 868 Avatar for int128
174. mosuka
(Minoru OSUKA)		 867 Avatar for mosuka
175. zonuexe
(USAMI Kenta)		 867 Avatar for zonuexe
176. konn
(Hiromi Ishii)		 857 Avatar for konn
177. piroor
(YUKI "Piro" Hiroshi)		 856 Avatar for piroor
178. icoxfog417
(Takahiro Kubo)		 850 Avatar for icoxfog417
179. philwo
(Philipp Wollermann)		 846 Avatar for philwo
180. dai-shi
(Daishi Kato)		 846 Avatar for dai-shi
181. udzura
(Kondo Uchio)		 843 Avatar for udzura
182. takahashim
(Masayoshi Takahashi)		 842 Avatar for takahashim
183. asukaminato0721
(Asuka Minato)		 833 Avatar for asukaminato0721
184. Koras02
(kobiad_ros)		 833 Avatar for Koras02
185. iAJue
(阿珏)		 831 Avatar for iAJue
186. matanki-saito
((*`・∀・´*))		 830 Avatar for matanki-saito
187. shogo4405
(shogo4405)		 830 Avatar for shogo4405
188. aliceinwire
(Arisu Tachibana)		 818 Avatar for aliceinwire
189. fosskers
(Colin Woodbury)		 815 Avatar for fosskers
190. NicolasDorier
(Nicolas Dorier)		 814 Avatar for NicolasDorier
191. yowatanabe
(Yoshiyuki Watanabe)		 813 Avatar for yowatanabe
192. nuskey8
(Yusuke Nakada)		 812 Avatar for nuskey8
193. wasabeef
(Daichi Furiya)		 810 Avatar for wasabeef
194. hatoo
()		 808 Avatar for hatoo
195. rinsuki
(rinsuki)		 806 Avatar for rinsuki
196. AchrafReyani
(Achraf)		 799 Avatar for AchrafReyani
197. domenic
(Domenic Denicola)		 792 Avatar for domenic
198. muukii
(Hiroshi Kimura)		 792 Avatar for muukii
199. melpon
(melpon)		 786 Avatar for melpon
200. martinheidegger
(Martin Heidegger)		 781 Avatar for martinheidegger
201. ykob
(Yoichi Kobayashi)		 779 Avatar for ykob
202. tanaikech
(Kanshi TANAIKE)		 777 Avatar for tanaikech
203. wass08
(Wassim SAMAD)		 772 Avatar for wass08
204. nuta
(Seiya Nuta)		 770 Avatar for nuta
205. fukamachi
(Eitaro Fukamachi)		 759 Avatar for fukamachi
206. XiaomingX
(Y11)		 758 Avatar for XiaomingX
207. uezo
(uezo)		 753 Avatar for uezo
208. nwtgck
(Ryo Ota)		 740 Avatar for nwtgck
209. repeatedly
(Masahiro Nakagawa)		 733 Avatar for repeatedly
210. hadashiA
(hadashiA)		 732 Avatar for hadashiA
211. Watson1978
(Shizuo Fujita)		 729 Avatar for Watson1978
212. willnet
(Shinichi Maeshima)		 723 Avatar for willnet
213. planetchili
(chili)		 722 Avatar for planetchili
214. shyouhei
(卜部昌平)		 719 Avatar for shyouhei
215. baku89
(Baku Hashimoto)		 717 Avatar for baku89
216. machida
(machida)		 715 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. kazuho
(Kazuho Oku)		 707 Avatar for kazuho
220. xfoxfu
(Yuze Fu)		 706 Avatar for xfoxfu
221. kentaro
(Kentaro Kuribayashi)		 687 Avatar for kentaro
222. kazunori279
(Kaz Sato)		 678 Avatar for kazunori279
223. hashrock
(hashrock)		 676 Avatar for hashrock
224. s1204IT
(Syuugo)		 666 Avatar for s1204IT
225. c-bata
(c-bata)		 665 Avatar for c-bata
226. uhyo
(uhyo)		 660 Avatar for uhyo
227. jmettraux
(John Mettraux)		 660 Avatar for jmettraux
228. lacolaco
(Suguru Inatomi)		 659 Avatar for lacolaco
229. lovyan03
(lovyan03)		 649 Avatar for lovyan03
230. knu
(Akinori Musha)		 641 Avatar for knu
231. ryohey
(ryohey)		 629 Avatar for ryohey
232. biohack5079
(sagbi)		 628 Avatar for biohack5079
233. andrewmd5
(Andrew Sampson)		 624 Avatar for andrewmd5
234. kenjinote
(kenji)		 621 Avatar for kenjinote
235. masui
(Toshiyuki Masui)		 618 Avatar for masui
236. ngs
(Atsushi NAGASE)		 618 Avatar for ngs
237. shirakaba
(Jamie Birch)		 613 Avatar for shirakaba
238. yuuki
(Yuuki TSUBOUCHI)		 611 Avatar for yuuki
239. ninoseki
(Manabu Niseki)		 610 Avatar for ninoseki
240. hoothin
()		 608 Avatar for hoothin
241. nakasyou
(Shotaro Nakamura)		 603 Avatar for nakasyou
242. reindex-ot
(Re*Index. (ot_inc))		 603 Avatar for reindex-ot
243. mayuki
(Mayuki Sawatari)		 600 Avatar for mayuki
244. cordx56
(Yuki Okamoto)		 599 Avatar for cordx56
245. rmackay9
(Randy Mackay)		 598 Avatar for rmackay9
246. watilde
(Daijiro Wachi)		 593 Avatar for watilde
247. daitomanabe
(Daito Manabe)		 590 Avatar for daitomanabe
248. SachaG
(Sacha Greif)		 588 Avatar for SachaG
249. taichi-ishitani
(Taichi Ishitani)		 587 Avatar for taichi-ishitani
250. wadackel
(tsuyoshi wada)		 586 Avatar for wadackel
251. youtalk
(Yutaka Kondo)		 584 Avatar for youtalk
252. ikwzm
(KAWAZOME Ichiro)		 580 Avatar for ikwzm
253. hiroppy
(Yuta Hiroto)		 578 Avatar for hiroppy
254. rikusato0
(Riku Sato)		 566 Avatar for rikusato0
255. rui314
(Rui Ueyama)		 559 Avatar for rui314
256. akinomyoga
(Koichi Murase)		 555 Avatar for akinomyoga

Organizations

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