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 2025-12-30 17:05:35 +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 128866 total users in the region and you need at least 211 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)		 36183 Avatar for bannzai
2. yuiseki
(yuiseki)		 10425 Avatar for yuiseki
3. manman4
(manman4)		 8263 Avatar for manman4
4. guitarrapc
(Ikiru Yoshizaki)		 6854 Avatar for guitarrapc
5. j5ik2o
(Junichi Kato)		 6533 Avatar for j5ik2o
6. yanorei32
(Ray Yano | あねてあ)		 6381 Avatar for yanorei32
7. sile
(Takeru Ohta)		 6047 Avatar for sile
8. azu
(azu)		 5609 Avatar for azu
9. mizchi
(Kotaro Chikuba)		 5242 Avatar for mizchi
10. taiki-e
(Taiki Endo)		 5078 Avatar for taiki-e
11. ashryanbeats
(Ash Ryan Arnwine)		 5048 Avatar for ashryanbeats
12. sue445
(Go Sueyoshi)		 4982 Avatar for sue445
13. miyako
(Keisuke Miyako)		 4901 Avatar for miyako
14. bobbens
(Edgar Simo-Serra)		 4900 Avatar for bobbens
15. ryota-murakami
(Ryota Murakami)		 4776 Avatar for ryota-murakami
16. suzuki-shunsuke
(Shunsuke Suzuki)		 4648 Avatar for suzuki-shunsuke
17. shinh
(Shinichiro Hamaji)		 4617 Avatar for shinh
18. yasulab
(Yohei Yasukawa)		 4317 Avatar for yasulab
19. hakatashi
(Koki Takahashi)		 4187 Avatar for hakatashi
20. yuki-kimoto
(Yuki Kimoto)		 4164 Avatar for yuki-kimoto
21. koriym
(Akihito Koriyama)		 4121 Avatar for koriym
22. tekezo
(Takayama Fumihiko)		 4034 Avatar for tekezo
23. shogo82148
(ICHINOSE Shogo)		 3906 Avatar for shogo82148
24. k1LoW
(Ken’ichiro Oyama)		 3778 Avatar for k1LoW
25. toastkidjp
(Toast kid)		 3649 Avatar for toastkidjp
26. xuwei-k
(kenji yoshida)		 3586 Avatar for xuwei-k
27. hsbt
(Hiroshi SHIBATA)		 3585 Avatar for hsbt
28. unhappychoice
(Yuji Ueki)		 3525 Avatar for unhappychoice
29. kentaro
(Kentaro Kuribayashi)		 3105 Avatar for kentaro
30. ianlewis
(Ian Lewis)		 2945 Avatar for ianlewis
31. whitphx
(Yuichiro Tachibana (Tsuchiya))		 2835 Avatar for whitphx
32. peppy
(Dean Herbert)		 2826 Avatar for peppy
33. haya14busa
(haya14busa)		 2765 Avatar for haya14busa
34. mcgoon
(van)		 2741 Avatar for mcgoon
35. tokuhirom
(Tokuhiro Matsuno)		 2633 Avatar for tokuhirom
36. kou
(Sutou Kouhei)		 2593 Avatar for kou
37. sapphi-red
(翠)		 2569 Avatar for sapphi-red
38. making
(Toshiaki Maki)		 2540 Avatar for making
39. harupy
(Harutaka Kawamura)		 2504 Avatar for harupy
40. YumNumm
(Ryotaro Onoue)		 2440 Avatar for YumNumm
41. hajimehoshi
(Hajime Hoshi)		 2431 Avatar for hajimehoshi
42. kishikawakatsumi
(Kishikawa Katsumi)		 2364 Avatar for kishikawakatsumi
43. yamadashy
(Kazuki Yamada)		 2236 Avatar for yamadashy
44. koxudaxi
(Koudai Aono)		 2235 Avatar for koxudaxi
45. AkihiroSuda
(Akihiro Suda)		 2205 Avatar for AkihiroSuda
46. halogenandtoast
(Matthew Mongeau)		 2191 Avatar for halogenandtoast
47. terasakisatoshi
(Satoshi Terasaki)		 2152 Avatar for terasakisatoshi
48. ursm
(Keita Urashima)		 2140 Avatar for ursm
49. yuwata
(Yu Watanabe)		 2129 Avatar for yuwata
50. PINTO0309
(Katsuya Hyodo)		 2078 Avatar for PINTO0309
51. lambdalisue
(Λlisue)		 2050 Avatar for lambdalisue
52. anatawa12
(anatawa12)		 2039 Avatar for anatawa12
53. sorairolake
(Shun Sakai)		 2035 Avatar for sorairolake
54. hakuturu583
(Masaya Kataoka)		 1964 Avatar for hakuturu583
55. keijiro
(Keijiro Takahashi)		 1958 Avatar for keijiro
56. winebarrel
(Genki Sugawara)		 1958 Avatar for winebarrel
57. takahirom
(Takahiro Menju)		 1947 Avatar for takahirom
58. fujiwara
(FUJIWARA Shunichiro)		 1911 Avatar for fujiwara
59. amatsuda
(Akira Matsuda)		 1907 Avatar for amatsuda
60. tatsuhiro-t
(Tatsuhiro Tsujikawa)		 1904 Avatar for tatsuhiro-t
61. sevenc-nanashi
(Nanashi.)		 1882 Avatar for sevenc-nanashi
62. akatsuki105
(Akatsuki)		 1877 Avatar for akatsuki105
63. yshrsmz
(Yasuhiro SHIMIZU)		 1877 Avatar for yshrsmz
64. yutkat
(Yuta Katayama)		 1856 Avatar for yutkat
65. tmori
(Takashi Mori)		 1846 Avatar for tmori
66. norbusan
(Norbert Preining)		 1837 Avatar for norbusan
67. kazupon
(kazuya kawaguchi)		 1821 Avatar for kazupon
68. hi-ogawa
(Hiroshi Ogawa)		 1818 Avatar for hi-ogawa
69. coliff
(Christian Oliff)		 1757 Avatar for coliff
70. mopemope
(Yutaka Matsubara)		 1713 Avatar for mopemope
71. Jannchie
(Jianqi Pan)		 1693 Avatar for Jannchie
72. syuilo
(syuilo)		 1690 Avatar for syuilo
73. taisukef
(Taisuke Fukuno)		 1689 Avatar for taisukef
74. Hiroshiba
(Hiroshiba)		 1678 Avatar for Hiroshiba
75. fumiya-kume
(kuu(Fumiya Kume))		 1674 Avatar for fumiya-kume
76. MagicalTux
(Mark Karpelès)		 1644 Avatar for MagicalTux
77. gkjohnson
(Garrett Johnson)		 1615 Avatar for gkjohnson
78. atztogo
(Atsushi Togo)		 1601 Avatar for atztogo
79. mashharuki
(Haruki Kondo)		 1583 Avatar for mashharuki
80. Shougo
(Shougo)		 1557 Avatar for Shougo
81. dalance
(Naoya Hatta)		 1541 Avatar for dalance
82. mayocream
(Mayo Takanashi)		 1538 Avatar for mayocream
83. cpojer
(Christoph Nakazawa)		 1527 Avatar for cpojer
84. eltociear
(Ikko Eltociear Ashimine)		 1499 Avatar for eltociear
85. rigaya
(rigaya)		 1486 Avatar for rigaya
86. matz
(Yukihiro "Matz" Matsumoto)		 1486 Avatar for matz
87. aviatesk
(Shuhei Kadowaki)		 1485 Avatar for aviatesk
88. atsushieno
(Atsushi Eno)		 1469 Avatar for atsushieno
89. 1024jp
(1024jp)		 1460 Avatar for 1024jp
90. mattn
(mattn)		 1454 Avatar for mattn
91. jsakamoto
()		 1449 Avatar for jsakamoto
92. koic
(Koichi ITO)		 1447 Avatar for koic
93. nobu
(Nobuyoshi Nakada)		 1442 Avatar for nobu
94. miurahr
(Hiroshi Miura)		 1432 Avatar for miurahr
95. nobuyuki83
(Nobuyuki Umetani)		 1397 Avatar for nobuyuki83
96. zcbenz
(Cheng)		 1350 Avatar for zcbenz
97. champierre
(Junya Ishihara)		 1318 Avatar for champierre
98. Him188
(Him188)		 1290 Avatar for Him188
99. tkoyama010
(Tetsuo Koyama)		 1282 Avatar for tkoyama010
100. kitao
(Takashi Kitao)		 1281 Avatar for kitao
101. hoochanlon
(123456)		 1281 Avatar for hoochanlon
102. rhysd
(Linda_pp)		 1259 Avatar for rhysd
103. zchee
(Koichi Shiraishi)		 1250 Avatar for zchee
104. usualoma
(Taku Amano)		 1249 Avatar for usualoma
105. smoogipoo
(Dan Balasescu)		 1204 Avatar for smoogipoo
106. kazu-yamamoto
(Kazu Yamamoto)		 1201 Avatar for kazu-yamamoto
107. kaityo256
(Hiroshi Watanabe)		 1200 Avatar for kaityo256
108. 1amageek
(1amageek)		 1189 Avatar for 1amageek
109. davetang
(Dave Tang)		 1187 Avatar for davetang
110. inokawa
()		 1177 Avatar for inokawa
111. Saul-Mirone
(Mirone)		 1170 Avatar for Saul-Mirone
112. lepture
(Hsiaoming Yang)		 1168 Avatar for lepture
113. fa0311
(ふぁ)		 1161 Avatar for fa0311
114. privatenumber
(Hiroki Osame)		 1130 Avatar for privatenumber
115. siketyan
(Naoki Ikeguchi)		 1116 Avatar for siketyan
116. Songmu
(Masayuki Matsuki)		 1101 Avatar for Songmu
117. conao3
(Naoya Yamashita)		 1088 Avatar for conao3
118. syohex
(Shohei YOSHIDA)		 1084 Avatar for syohex
119. skanehira
(skanehira)		 1083 Avatar for skanehira
120. takahashim
(Masayoshi Takahashi)		 1081 Avatar for takahashim
121. kateinoigakukun
(Yuta Saito)		 1049 Avatar for kateinoigakukun
122. fosskers
(Colin Woodbury)		 1046 Avatar for fosskers
123. uzulla
(uzulla / Junichi Ishida)		 1042 Avatar for uzulla
124. ubugeeei
(ubugeeei)		 1038 Avatar for ubugeeei
125. momeemt
(Mutsuha Asada)		 1030 Avatar for momeemt
126. lhl
(Leonard)		 1030 Avatar for lhl
127. neuecc
(Yoshifumi Kawai)		 1030 Avatar for neuecc
128. tatsuyafujisaki
(Tatsuya Fujisaki)		 1028 Avatar for tatsuyafujisaki
129. smorimoto
(Sora Morimoto)		 1026 Avatar for smorimoto
130. koron
(MURAOKA Taro)		 1025 Avatar for koron
131. andrewmd5
(Andrew Sampson)		 1019 Avatar for andrewmd5
132. nwiizo
(nwiizo)		 1010 Avatar for nwiizo
133. Koras02
(kobiad_ros)		 997 Avatar for Koras02
134. kt3k
(Yoshiya Hinosawa)		 994 Avatar for kt3k
135. neka-nat
(k-tanaka)		 987 Avatar for neka-nat
136. ota-meshi
(Yosuke Ota)		 984 Avatar for ota-meshi
137. int128
(Hidetake Iwata)		 959 Avatar for int128
138. noborus
(Noboru Saito)		 944 Avatar for noborus
139. qnighy
(Masaki Hara)		 942 Avatar for qnighy
140. komagata
(Masaki Komagata)		 941 Avatar for komagata
141. yutannihilation
(Hiroaki Yutani)		 934 Avatar for yutannihilation
142. yusukebe
(Yusuke Wada)		 928 Avatar for yusukebe
143. soutaro
(Soutaro Matsumoto)		 922 Avatar for soutaro
144. sorah
(Sorah Fukumori)		 917 Avatar for sorah
145. shimbaco
(Shimba, Koji)		 905 Avatar for shimbaco
146. taea
(taea)		 902 Avatar for taea
147. masarakki
(masarakki)		 902 Avatar for masarakki
148. AungKaung1928
(Aung Kaung Myat)		 901 Avatar for AungKaung1928
149. nagadomi
()		 898 Avatar for nagadomi
150. sideshowbarker
()		 896 Avatar for sideshowbarker
151. nateberkopec
(Nate Berkopec)		 896 Avatar for nateberkopec
152. muukii
(Hiroshi Kimura)		 889 Avatar for muukii
153. JohnTitor
(Yuki Okushi)		 889 Avatar for JohnTitor
154. matanki-saito
((*`・∀・´*))		 888 Avatar for matanki-saito
155. sugyan
(Yoshihiro Sugi)		 888 Avatar for sugyan
156. dai-shi
(Daishi Kato)		 885 Avatar for dai-shi
157. babarot
(Masaki ISHIYAMA)		 883 Avatar for babarot
158. fygar256
(Taisuke Maekawa)		 873 Avatar for fygar256
159. rui314
(Rui Ueyama)		 857 Avatar for rui314
160. dvcrn
(David)		 857 Avatar for dvcrn
161. shogo4405
(shogo4405)		 855 Avatar for shogo4405
162. sigma7863
(Sigma)		 854 Avatar for sigma7863
163. nuskey8
(Yusuke Nakada)		 853 Avatar for nuskey8
164. iAJue
(阿珏)		 845 Avatar for iAJue
165. philwo
(Philipp Wollermann)		 840 Avatar for philwo
166. melpon
(melpon)		 829 Avatar for melpon
167. vraestoren
(huok)		 829 Avatar for vraestoren
168. asukaminato0721
(Asuka Minato)		 828 Avatar for asukaminato0721
169. kyamagu
(Kota Yamaguchi)		 819 Avatar for kyamagu
170. wasabeef
(Daichi Furiya)		 807 Avatar for wasabeef
171. msakai
(Masahiro Sakai)		 801 Avatar for msakai
172. ksoichiro
(Soichiro Kashima)		 800 Avatar for ksoichiro
173. aliceinwire
(Arisu Tachibana)		 797 Avatar for aliceinwire
174. yowatanabe
(Yoshiyuki Watanabe)		 796 Avatar for yowatanabe
175. kurone-kito
(Kuroné Kito (黒音キト))		 795 Avatar for kurone-kito
176. jmettraux
(John Mettraux)		 794 Avatar for jmettraux
177. NicolasDorier
(Nicolas Dorier)		 792 Avatar for NicolasDorier
178. piroor
(YUKI "Piro" Hiroshi)		 785 Avatar for piroor
179. neet
(Ryō Igarashi (五十嵐 涼))		 781 Avatar for neet
180. baku89
(Baku 麦)		 781 Avatar for baku89
181. professorDeveloper
(Azamov X)		 780 Avatar for professorDeveloper
182. kmizu
(Kota Mizushima)		 780 Avatar for kmizu
183. martinheidegger
(Martin Heidegger)		 778 Avatar for martinheidegger
184. hatoo
()		 778 Avatar for hatoo
185. pocke
(Masataka Pocke Kuwabara)		 774 Avatar for pocke
186. Kamesuta
(Kamesuta)		 767 Avatar for Kamesuta
187. s1204IT
(Syuugo)		 753 Avatar for s1204IT
188. rinsuki
(rinsuki)		 752 Avatar for rinsuki
189. fukamachi
(Eitaro Fukamachi)		 750 Avatar for fukamachi
190. ykob
(Yoichi Kobayashi)		 738 Avatar for ykob
191. audreyfeldroy
(Audrey M. Roy Greenfeld)		 734 Avatar for audreyfeldroy
192. XiaomingX
(Y11)		 734 Avatar for XiaomingX
193. zonuexe
(USAMI Kenta)		 731 Avatar for zonuexe
194. mayuki
(Mayuki Sawatari)		 724 Avatar for mayuki
195. onevcat
(Wei Wang)		 723 Avatar for onevcat
196. saki4510t
(saki)		 719 Avatar for saki4510t
197. domenic
(Domenic Denicola)		 715 Avatar for domenic
198. AchrafReyani
(Achraf)		 714 Avatar for AchrafReyani
199. Watson1978
(Shizuo Fujita)		 701 Avatar for Watson1978
200. shirakaba
(Jamie Birch)		 699 Avatar for shirakaba
201. c-bata
(c-bata)		 684 Avatar for c-bata
202. szkkng
(Kengo)		 683 Avatar for szkkng
203. hrsh7th
(hrsh7th)		 681 Avatar for hrsh7th
204. uezo
(uezo)		 678 Avatar for uezo
205. Saqoosha
(Saqoosha)		 674 Avatar for Saqoosha
206. wkentaro
(Kentaro Wada)		 670 Avatar for wkentaro
207. lovyan03
(lovyan03)		 665 Avatar for lovyan03
208. tanaikech
(Kanshi TANAIKE)		 654 Avatar for tanaikech
209. cxxxr
(cxxxr)		 648 Avatar for cxxxr
210. mosuka
(Minoru OSUKA)		 645 Avatar for mosuka
211. taichi-ishitani
(Taichi Ishitani)		 643 Avatar for taichi-ishitani
212. bmf-san
(Kenta Takeuchi)		 640 Avatar for bmf-san
213. youtalk
(Yutaka Kondo)		 637 Avatar for youtalk
214. udzura
(Kondo Uchio)		 631 Avatar for udzura
215. mpyw
(mpyw)		 628 Avatar for mpyw
216. hiroppy
(Yuta Hiroto)		 626 Avatar for hiroppy
217. kazuho
(Kazuho Oku)		 624 Avatar for kazuho
218. cho45
(Satoh, Hiroh)		 623 Avatar for cho45
219. hadashiA
(hadashiA)		 617 Avatar for hadashiA
220. seratch
(Kazuhiro Sera)		 612 Avatar for seratch
221. nuta
(Seiya Nuta)		 610 Avatar for nuta
222. konn
(Hiromi Ishii)		 604 Avatar for konn
223. Reputeless
(Ryo Suzuki)		 600 Avatar for Reputeless
224. reindex-ot
(Re*Index. (ot_inc))		 599 Avatar for reindex-ot
225. ryohey
(ryohey)		 596 Avatar for ryohey
226. mumoshu
(Yusuke Kuoka)		 594 Avatar for mumoshu
227. luadebug
(Saikari)		 591 Avatar for luadebug
228. GOROman
(GOROman)		 586 Avatar for GOROman
229. machida
(machida)		 586 Avatar for machida
230. planetchili
(chili)		 583 Avatar for planetchili
231. dev-yakuza
(DeKu)		 577 Avatar for dev-yakuza
232. watilde
(Daijiro Wachi)		 576 Avatar for watilde
233. fumiyasac
(Fumiya Sakai)		 575 Avatar for fumiyasac
234. ninoseki
(Manabu Niseki)		 572 Avatar for ninoseki
235. Cloudef
(Jari Vetoniemi)		 567 Avatar for Cloudef
236. mistery220
(Kanotsu)		 564 Avatar for mistery220
237. akinomyoga
(Koichi Murase)		 562 Avatar for akinomyoga
238. the0cp
(Theodore Cooper)		 562 Avatar for the0cp
239. xfoxfu
(Yuze Fu)		 561 Avatar for xfoxfu
240. cordx56
(Yuki Okamoto)		 557 Avatar for cordx56
241. rmackay9
(Randy Mackay)		 556 Avatar for rmackay9
242. mapconcierge
(Taichi FURUHASHI)		 555 Avatar for mapconcierge
243. repeatedly
(Masahiro Nakagawa)		 554 Avatar for repeatedly
244. giginet
(Kohki Miki)		 551 Avatar for giginet
245. hashrock
(hashrock)		 547 Avatar for hashrock
246. yuuki
(Yuuki TSUBOUCHI)		 541 Avatar for yuuki
247. icoxfog417
(Takahiro Kubo)		 540 Avatar for icoxfog417
248. willnet
(Shinichi Maeshima)		 538 Avatar for willnet
249. Makio64
(Makio64)		 535 Avatar for Makio64
250. lacolaco
(Suguru Inatomi)		 535 Avatar for lacolaco
251. mattatz
(Masatatsu Nakamura)		 528 Avatar for mattatz
252. yug1224
(Yuji Yamaguchi)		 528 Avatar for yug1224
253. hoothin
()		 527 Avatar for hoothin
254. ikwzm
(KAWAZOME Ichiro)		 524 Avatar for ikwzm
255. shaoanlu
()		 519 Avatar for shaoanlu
256. gfx
(FUJI Goro)		 518 Avatar for gfx

Organizations

Rank Organization Members
1. ruby 8
2. vim-jp 6
3. oss-gate 5
4. ukigumo 4
5. perl-users-jp 4
6. cpprefjp 4
7. llvm 4
8. asakusarb 4
9. web-platform-tests 4
10. groonga 4