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 2025-12-25 02:37:28 +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 128698 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)		 36172 Avatar for bannzai
2. yuiseki
(yuiseki)		 10209 Avatar for yuiseki
3. manman4
(manman4)		 8288 Avatar for manman4
4. guitarrapc
(Ikiru Yoshizaki)		 6784 Avatar for guitarrapc
5. j5ik2o
(Junichi Kato)		 6530 Avatar for j5ik2o
6. yanorei32
(Ray Yano | あねてあ)		 6424 Avatar for yanorei32
7. sile
(Takeru Ohta)		 5973 Avatar for sile
8. azu
(azu)		 5643 Avatar for azu
9. suzuki-shunsuke
(Shunsuke Suzuki)		 4975 Avatar for suzuki-shunsuke
10. taiki-e
(Taiki Endo)		 4972 Avatar for taiki-e
11. bobbens
(Edgar Simo-Serra)		 4954 Avatar for bobbens
12. ashryanbeats
(Ash Ryan Arnwine)		 4936 Avatar for ashryanbeats
13. mizchi
(Kotaro Chikuba)		 4796 Avatar for mizchi
14. miyako
(Keisuke Miyako)		 4771 Avatar for miyako
15. ryota-murakami
(Ryota Murakami)		 4644 Avatar for ryota-murakami
16. shinh
(Shinichiro Hamaji)		 4617 Avatar for shinh
17. sue445
(Go Sueyoshi)		 4503 Avatar for sue445
18. yasulab
(Yohei Yasukawa)		 4370 Avatar for yasulab
19. yuki-kimoto
(Yuki Kimoto)		 4270 Avatar for yuki-kimoto
20. hakatashi
(Koki Takahashi)		 4187 Avatar for hakatashi
21. koriym
(Akihito Koriyama)		 4026 Avatar for koriym
22. shogo82148
(ICHINOSE Shogo)		 3885 Avatar for shogo82148
23. tekezo
(Takayama Fumihiko)		 3853 Avatar for tekezo
24. k1LoW
(Ken’ichiro Oyama)		 3716 Avatar for k1LoW
25. toastkidjp
(Toast kid)		 3669 Avatar for toastkidjp
26. hsbt
(Hiroshi SHIBATA)		 3632 Avatar for hsbt
27. xuwei-k
(kenji yoshida)		 3553 Avatar for xuwei-k
28. unhappychoice
(Yuji Ueki)		 3488 Avatar for unhappychoice
29. kentaro
(Kentaro Kuribayashi)		 3106 Avatar for kentaro
30. ianlewis
(Ian Lewis)		 2922 Avatar for ianlewis
31. whitphx
(Yuichiro Tachibana (Tsuchiya))		 2853 Avatar for whitphx
32. peppy
(Dean Herbert)		 2847 Avatar for peppy
33. mcgoon
(van)		 2792 Avatar for mcgoon
34. haya14busa
(haya14busa)		 2765 Avatar for haya14busa
35. kou
(Sutou Kouhei)		 2675 Avatar for kou
36. tokuhirom
(Tokuhiro Matsuno)		 2631 Avatar for tokuhirom
37. sapphi-red
(翠)		 2581 Avatar for sapphi-red
38. making
(Toshiaki Maki)		 2574 Avatar for making
39. harupy
(Harutaka Kawamura)		 2493 Avatar for harupy
40. hajimehoshi
(Hajime Hoshi)		 2471 Avatar for hajimehoshi
41. YumNumm
(Ryotaro Onoue)		 2447 Avatar for YumNumm
42. kishikawakatsumi
(Kishikawa Katsumi)		 2365 Avatar for kishikawakatsumi
43. AkihiroSuda
(Akihiro Suda)		 2229 Avatar for AkihiroSuda
44. yamadashy
(Kazuki Yamada)		 2225 Avatar for yamadashy
45. terasakisatoshi
(Satoshi Terasaki)		 2215 Avatar for terasakisatoshi
46. halogenandtoast
(Matthew Mongeau)		 2187 Avatar for halogenandtoast
47. koxudaxi
(Koudai Aono)		 2184 Avatar for koxudaxi
48. yuwata
(Yu Watanabe)		 2154 Avatar for yuwata
49. ursm
(Keita Urashima)		 2144 Avatar for ursm
50. sorairolake
(Shun Sakai)		 2115 Avatar for sorairolake
51. anatawa12
(anatawa12)		 2074 Avatar for anatawa12
52. hakuturu583
(Masaya Kataoka)		 2054 Avatar for hakuturu583
53. PINTO0309
(Katsuya Hyodo)		 2007 Avatar for PINTO0309
54. takahirom
(Takahiro Menju)		 1964 Avatar for takahirom
55. keijiro
(Keijiro Takahashi)		 1935 Avatar for keijiro
56. tatsuhiro-t
(Tatsuhiro Tsujikawa)		 1909 Avatar for tatsuhiro-t
57. fujiwara
(FUJIWARA Shunichiro)		 1905 Avatar for fujiwara
58. tmori
(Takashi Mori)		 1893 Avatar for tmori
59. lambdalisue
(Λlisue)		 1886 Avatar for lambdalisue
60. yshrsmz
(Yasuhiro SHIMIZU)		 1879 Avatar for yshrsmz
61. winebarrel
(Genki Sugawara)		 1874 Avatar for winebarrel
62. yutkat
(Yuta Katayama)		 1851 Avatar for yutkat
63. sevenc-nanashi
(Nanashi.)		 1850 Avatar for sevenc-nanashi
64. hi-ogawa
(Hiroshi Ogawa)		 1835 Avatar for hi-ogawa
65. norbusan
(Norbert Preining)		 1830 Avatar for norbusan
66. kazupon
(kazuya kawaguchi)		 1804 Avatar for kazupon
67. coliff
(Christian Oliff)		 1755 Avatar for coliff
68. amatsuda
(Akira Matsuda)		 1723 Avatar for amatsuda
69. Jannchie
(Jianqi Pan)		 1721 Avatar for Jannchie
70. Hiroshiba
(Hiroshiba)		 1706 Avatar for Hiroshiba
71. taisukef
(Taisuke Fukuno)		 1682 Avatar for taisukef
72. syuilo
(syuilo)		 1682 Avatar for syuilo
73. atztogo
(Atsushi Togo)		 1650 Avatar for atztogo
74. mopemope
(Yutaka Matsubara)		 1647 Avatar for mopemope
75. gkjohnson
(Garrett Johnson)		 1634 Avatar for gkjohnson
76. fumiya-kume
(kuu(Fumiya Kume))		 1631 Avatar for fumiya-kume
77. MagicalTux
(Mark Karpelès)		 1604 Avatar for MagicalTux
78. mayocream
(Mayo Takanashi)		 1566 Avatar for mayocream
79. Shougo
(Shougo)		 1548 Avatar for Shougo
80. dalance
(Naoya Hatta)		 1542 Avatar for dalance
81. cpojer
(Christoph Nakazawa)		 1541 Avatar for cpojer
82. mashharuki
(Haruki Kondo)		 1504 Avatar for mashharuki
83. aviatesk
(Shuhei Kadowaki)		 1475 Avatar for aviatesk
84. eltociear
(Ikko Eltociear Ashimine)		 1471 Avatar for eltociear
85. nobu
(Nobuyoshi Nakada)		 1464 Avatar for nobu
86. koic
(Koichi ITO)		 1460 Avatar for koic
87. 1024jp
(1024jp)		 1459 Avatar for 1024jp
88. atsushieno
(Atsushi Eno)		 1440 Avatar for atsushieno
89. miurahr
(Hiroshi Miura)		 1433 Avatar for miurahr
90. rigaya
(rigaya)		 1432 Avatar for rigaya
91. jsakamoto
()		 1426 Avatar for jsakamoto
92. nobuyuki83
(Nobuyuki Umetani)		 1415 Avatar for nobuyuki83
93. Him188
(Him188)		 1412 Avatar for Him188
94. matz
(Yukihiro "Matz" Matsumoto)		 1410 Avatar for matz
95. mattn
(mattn)		 1379 Avatar for mattn
96. zcbenz
(Cheng)		 1357 Avatar for zcbenz
97. champierre
(Junya Ishihara)		 1312 Avatar for champierre
98. tkoyama010
(Tetsuo Koyama)		 1306 Avatar for tkoyama010
99. kitao
(Takashi Kitao)		 1290 Avatar for kitao
100. usualoma
(Taku Amano)		 1285 Avatar for usualoma
101. rhysd
(Linda_pp)		 1259 Avatar for rhysd
102. zchee
(Koichi Shiraishi)		 1249 Avatar for zchee
103. Saul-Mirone
(Mirone)		 1217 Avatar for Saul-Mirone
104. smoogipoo
(Dan Balasescu)		 1216 Avatar for smoogipoo
105. kaityo256
(Hiroshi Watanabe)		 1209 Avatar for kaityo256
106. kazu-yamamoto
(Kazu Yamamoto)		 1203 Avatar for kazu-yamamoto
107. davetang
(Dave Tang)		 1186 Avatar for davetang
108. 1amageek
(1amageek)		 1174 Avatar for 1amageek
109. fa0311
(ふぁ)		 1164 Avatar for fa0311
110. inokawa
()		 1163 Avatar for inokawa
111. lepture
(Hsiaoming Yang)		 1161 Avatar for lepture
112. privatenumber
(Hiroki Osame)		 1147 Avatar for privatenumber
113. siketyan
(Naoki Ikeguchi)		 1140 Avatar for siketyan
114. hoochanlon
(123456)		 1114 Avatar for hoochanlon
115. Songmu
(Masayuki Matsuki)		 1091 Avatar for Songmu
116. smorimoto
(Sora Morimoto)		 1087 Avatar for smorimoto
117. syohex
(Shohei YOSHIDA)		 1084 Avatar for syohex
118. takahashim
(Masayoshi Takahashi)		 1068 Avatar for takahashim
119. fosskers
(Colin Woodbury)		 1056 Avatar for fosskers
120. skanehira
(skanehira)		 1043 Avatar for skanehira
121. uzulla
(uzulla / Junichi Ishida)		 1042 Avatar for uzulla
122. neuecc
(Yoshifumi Kawai)		 1035 Avatar for neuecc
123. kateinoigakukun
(Yuta Saito)		 1032 Avatar for kateinoigakukun
124. lhl
(Leonard)		 1023 Avatar for lhl
125. momeemt
(Mutsuha Asada)		 1022 Avatar for momeemt
126. andrewmd5
(Andrew Sampson)		 1019 Avatar for andrewmd5
127. koron
(MURAOKA Taro)		 1017 Avatar for koron
128. tatsuyafujisaki
(Tatsuya Fujisaki)		 1014 Avatar for tatsuyafujisaki
129. ubugeeei
(ubugeeei)		 1013 Avatar for ubugeeei
130. neka-nat
(k-tanaka)		 1013 Avatar for neka-nat
131. ota-meshi
(Yosuke Ota)		 1009 Avatar for ota-meshi
132. kt3k
(Yoshiya Hinosawa)		 1007 Avatar for kt3k
133. Koras02
(kobiad_ros)		 997 Avatar for Koras02
134. soutaro
(Soutaro Matsumoto)		 964 Avatar for soutaro
135. nwiizo
(nwiizo)		 961 Avatar for nwiizo
136. noborus
(Noboru Saito)		 951 Avatar for noborus
137. komagata
(Masaki Komagata)		 939 Avatar for komagata
138. yusukebe
(Yusuke Wada)		 936 Avatar for yusukebe
139. qnighy
(Masaki Hara)		 933 Avatar for qnighy
140. yutannihilation
(Hiroaki Yutani)		 929 Avatar for yutannihilation
141. int128
(Hidetake Iwata)		 929 Avatar for int128
142. rui314
(Rui Ueyama)		 919 Avatar for rui314
143. sorah
(Sorah Fukumori)		 911 Avatar for sorah
144. shimbaco
(Shimba, Koji)		 903 Avatar for shimbaco
145. taea
(taea)		 902 Avatar for taea
146. nateberkopec
(Nate Berkopec)		 900 Avatar for nateberkopec
147. nagadomi
()		 899 Avatar for nagadomi
148. dai-shi
(Daishi Kato)		 897 Avatar for dai-shi
149. matanki-saito
((*`・∀・´*))		 895 Avatar for matanki-saito
150. sugyan
(Yoshihiro Sugi)		 892 Avatar for sugyan
151. JohnTitor
(Yuki Okushi)		 885 Avatar for JohnTitor
152. masarakki
(masarakki)		 884 Avatar for masarakki
153. babarot
(Masaki ISHIYAMA)		 883 Avatar for babarot
154. fygar256
(Taisuke Maekawa)		 879 Avatar for fygar256
155. shogo4405
(shogo4405)		 865 Avatar for shogo4405
156. sideshowbarker
()		 858 Avatar for sideshowbarker
157. muukii
(Hiroshi Kimura)		 857 Avatar for muukii
158. conao3
(Naoya Yamashita)		 857 Avatar for conao3
159. nuskey8
(Yusuke Nakada)		 855 Avatar for nuskey8
160. jmettraux
(John Mettraux)		 852 Avatar for jmettraux
161. iAJue
(阿珏)		 843 Avatar for iAJue
162. philwo
(Philipp Wollermann)		 840 Avatar for philwo
163. dvcrn
(David)		 838 Avatar for dvcrn
164. sigma7863
(Sigma)		 832 Avatar for sigma7863
165. vraestoren
(huok)		 829 Avatar for vraestoren
166. melpon
(melpon)		 829 Avatar for melpon
167. asukaminato0721
(Asuka Minato)		 827 Avatar for asukaminato0721
168. hatoo
()		 821 Avatar for hatoo
169. msakai
(Masahiro Sakai)		 821 Avatar for msakai
170. kyamagu
(Kota Yamaguchi)		 820 Avatar for kyamagu
171. aliceinwire
(Arisu Tachibana)		 814 Avatar for aliceinwire
172. kurone-kito
(Kuroné Kito (黒音キト))		 809 Avatar for kurone-kito
173. wasabeef
(Daichi Furiya)		 807 Avatar for wasabeef
174. NicolasDorier
(Nicolas Dorier)		 807 Avatar for NicolasDorier
175. yowatanabe
(Yoshiyuki Watanabe)		 800 Avatar for yowatanabe
176. piroor
(YUKI "Piro" Hiroshi)		 799 Avatar for piroor
177. baku89
(Baku 麦)		 797 Avatar for baku89
178. kmizu
(Kota Mizushima)		 794 Avatar for kmizu
179. neet
(Ryō Igarashi (五十嵐 涼))		 781 Avatar for neet
180. martinheidegger
(Martin Heidegger)		 780 Avatar for martinheidegger
181. pocke
(Masataka Pocke Kuwabara)		 769 Avatar for pocke
182. Kamesuta
(Kamesuta)		 767 Avatar for Kamesuta
183. s1204IT
(Syuugo)		 757 Avatar for s1204IT
184. rinsuki
(rinsuki)		 755 Avatar for rinsuki
185. RikuSato0
(blockify)		 751 Avatar for RikuSato0
186. fukamachi
(Eitaro Fukamachi)		 748 Avatar for fukamachi
187. szkkng
(Kengo)		 740 Avatar for szkkng
188. ykob
(Yoichi Kobayashi)		 736 Avatar for ykob
189. XiaomingX
(Y11)		 734 Avatar for XiaomingX
190. mayuki
(Mayuki Sawatari)		 718 Avatar for mayuki
191. audreyfeldroy
(Audrey M. Roy Greenfeld)		 715 Avatar for audreyfeldroy
192. AchrafReyani
(Achraf)		 714 Avatar for AchrafReyani
193. onevcat
(Wei Wang)		 709 Avatar for onevcat
194. domenic
(Domenic Denicola)		 707 Avatar for domenic
195. shirakaba
(Jamie Birch)		 699 Avatar for shirakaba
196. zonuexe
(USAMI Kenta)		 697 Avatar for zonuexe
197. hrsh7th
(hrsh7th)		 692 Avatar for hrsh7th
198. saki4510t
(saki)		 691 Avatar for saki4510t
199. c-bata
(c-bata)		 678 Avatar for c-bata
200. Watson1978
(Shizuo Fujita)		 675 Avatar for Watson1978
201. uezo
(uezo)		 666 Avatar for uezo
202. Saqoosha
(Saqoosha)		 654 Avatar for Saqoosha
203. youtalk
(Yutaka Kondo)		 645 Avatar for youtalk
204. bmf-san
(Kenta Takeuchi)		 645 Avatar for bmf-san
205. taichi-ishitani
(Taichi Ishitani)		 644 Avatar for taichi-ishitani
206. kazuho
(Kazuho Oku)		 639 Avatar for kazuho
207. lovyan03
(lovyan03)		 634 Avatar for lovyan03
208. tanaikech
(Kanshi TANAIKE)		 632 Avatar for tanaikech
209. mosuka
(Minoru OSUKA)		 628 Avatar for mosuka
210. ryohey
(ryohey)		 626 Avatar for ryohey
211. hiroppy
(Yuta Hiroto)		 625 Avatar for hiroppy
212. seratch
(Kazuhiro Sera)		 612 Avatar for seratch
213. hadashiA
(hadashiA)		 608 Avatar for hadashiA
214. Reputeless
(Ryo Suzuki)		 608 Avatar for Reputeless
215. nuta
(Seiya Nuta)		 606 Avatar for nuta
216. reindex-ot
(Re*Index. (ot_inc))		 599 Avatar for reindex-ot
217. mumoshu
(Yusuke Kuoka)		 599 Avatar for mumoshu
218. udzura
(Kondo Uchio)		 596 Avatar for udzura
219. luadebug
(Saikari)		 593 Avatar for luadebug
220. konn
(Hiromi Ishii)		 590 Avatar for konn
221. machida
(machida)		 588 Avatar for machida
222. planetchili
(chili)		 586 Avatar for planetchili
223. GOROman
(GOROman)		 586 Avatar for GOROman
224. ninoseki
(Manabu Niseki)		 576 Avatar for ninoseki
225. fumiyasac
(Fumiya Sakai)		 576 Avatar for fumiyasac
226. wkentaro
(Kentaro Wada)		 574 Avatar for wkentaro
227. akinomyoga
(Koichi Murase)		 573 Avatar for akinomyoga
228. the0cp
(Theodore Cooper)		 572 Avatar for the0cp
229. mattatz
(Masatatsu Nakamura)		 567 Avatar for mattatz
230. Cloudef
(Jari Vetoniemi)		 566 Avatar for Cloudef
231. mistery220
(Kanotsu)		 564 Avatar for mistery220
232. cxxxr
(cxxxr)		 562 Avatar for cxxxr
233. mapconcierge
(Taichi FURUHASHI)		 558 Avatar for mapconcierge
234. rmackay9
(Randy Mackay)		 557 Avatar for rmackay9
235. cordx56
(Yuki Okamoto)		 557 Avatar for cordx56
236. dev-yakuza
(DeKu)		 550 Avatar for dev-yakuza
237. yuuki
(Yuuki TSUBOUCHI)		 539 Avatar for yuuki
238. willnet
(Shinichi Maeshima)		 538 Avatar for willnet
239. repeatedly
(Masahiro Nakagawa)		 537 Avatar for repeatedly
240. cho45
(Satoh, Hiroh)		 535 Avatar for cho45
241. ikwzm
(KAWAZOME Ichiro)		 533 Avatar for ikwzm
242. yug1224
(Yuji Yamaguchi)		 530 Avatar for yug1224
243. mpyw
(mpyw)		 529 Avatar for mpyw
244. hashrock
(hashrock)		 526 Avatar for hashrock
245. Makio64
(Makio64)		 524 Avatar for Makio64
246. shaoanlu
()		 519 Avatar for shaoanlu
247. hoothin
()		 519 Avatar for hoothin
248. xfoxfu
(Yuze Fu)		 517 Avatar for xfoxfu
249. icoxfog417
(Takahiro Kubo)		 514 Avatar for icoxfog417
250. kenjinote
(kenji)		 511 Avatar for kenjinote
251. giginet
(Kohki Miki)		 509 Avatar for giginet
252. termoshtt
(Toshiki Teramura)		 508 Avatar for termoshtt
253. cosmo0920
(Hiroshi Hatake)		 503 Avatar for cosmo0920
254. gfx
(FUJI Goro)		 500 Avatar for gfx
255. tado
(Atsushi Tadokoro)		 500 Avatar for tado
256. nakasyou
(Shotaro Nakamura)		 498 Avatar for nakasyou

Organizations

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