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 2025-12-10 10:03:09 +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 128112 total users in the region and you need at least 210 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)		 34688 Avatar for bannzai
2. yuiseki
(yuiseki)		 9408 Avatar for yuiseki
3. manman4
(manman4)		 8196 Avatar for manman4
4. guitarrapc
(Ikiru Yoshizaki)		 6454 Avatar for guitarrapc
5. yanorei32
(Ray Yano | あねてあ)		 6301 Avatar for yanorei32
6. sile
(Takeru Ohta)		 5838 Avatar for sile
7. azu
(azu)		 5707 Avatar for azu
8. j5ik2o
(Junichi Kato)		 5609 Avatar for j5ik2o
9. suzuki-shunsuke
(Shunsuke Suzuki)		 4962 Avatar for suzuki-shunsuke
10. taiki-e
(Taiki Endo)		 4920 Avatar for taiki-e
11. bobbens
(Edgar Simo-Serra)		 4756 Avatar for bobbens
12. shinh
(Shinichiro Hamaji)		 4620 Avatar for shinh
13. ashryanbeats
(Ash Ryan Arnwine)		 4605 Avatar for ashryanbeats
14. miyako
(Keisuke Miyako)		 4532 Avatar for miyako
15. yuki-kimoto
(Yuki Kimoto)		 4513 Avatar for yuki-kimoto
16. yasulab
(Yohei Yasukawa)		 4329 Avatar for yasulab
17. ryota-murakami
(Ryota Murakami)		 4142 Avatar for ryota-murakami
18. mizchi
(Kotaro Chikuba)		 4127 Avatar for mizchi
19. hakatashi
(Koki Takahashi)		 4109 Avatar for hakatashi
20. sue445
(Go Sueyoshi)		 4059 Avatar for sue445
21. shogo82148
(ICHINOSE Shogo)		 3789 Avatar for shogo82148
22. tekezo
(Takayama Fumihiko)		 3708 Avatar for tekezo
23. koriym
(Akihito Koriyama)		 3700 Avatar for koriym
24. k1LoW
(Ken’ichiro Oyama)		 3659 Avatar for k1LoW
25. toastkidjp
(Toast kid)		 3656 Avatar for toastkidjp
26. hsbt
(Hiroshi SHIBATA)		 3572 Avatar for hsbt
27. xuwei-k
(kenji yoshida)		 3556 Avatar for xuwei-k
28. unhappychoice
(Yuji Ueki)		 3428 Avatar for unhappychoice
29. kentaro
(Kentaro Kuribayashi)		 3130 Avatar for kentaro
30. peppy
(Dean Herbert)		 2901 Avatar for peppy
31. mcgoon
(van)		 2894 Avatar for mcgoon
32. whitphx
(Yuichiro Tachibana (Tsuchiya))		 2875 Avatar for whitphx
33. haya14busa
(haya14busa)		 2765 Avatar for haya14busa
34. ianlewis
(Ian Lewis)		 2737 Avatar for ianlewis
35. kou
(Sutou Kouhei)		 2714 Avatar for kou
36. making
(Toshiaki Maki)		 2639 Avatar for making
37. tokuhirom
(Tokuhiro Matsuno)		 2579 Avatar for tokuhirom
38. sapphi-red
(翠)		 2541 Avatar for sapphi-red
39. YumNumm
(Ryotaro Onoue)		 2533 Avatar for YumNumm
40. hajimehoshi
(Hajime Hoshi)		 2485 Avatar for hajimehoshi
41. harupy
(Harutaka Kawamura)		 2471 Avatar for harupy
42. kishikawakatsumi
(Kishikawa Katsumi)		 2296 Avatar for kishikawakatsumi
43. yuwata
(Yu Watanabe)		 2229 Avatar for yuwata
44. AkihiroSuda
(Akihiro Suda)		 2189 Avatar for AkihiroSuda
45. terasakisatoshi
(Satoshi Terasaki)		 2186 Avatar for terasakisatoshi
46. halogenandtoast
(Matthew Mongeau)		 2169 Avatar for halogenandtoast
47. ursm
(Keita Urashima)		 2147 Avatar for ursm
48. yamadashy
(Kazuki Yamada)		 2144 Avatar for yamadashy
49. anatawa12
(anatawa12)		 2135 Avatar for anatawa12
50. hakuturu583
(Masaya Kataoka)		 2070 Avatar for hakuturu583
51. takahirom
(Takahiro Menju)		 2022 Avatar for takahirom
52. tmori
(Takashi Mori)		 1976 Avatar for tmori
53. keijiro
(Keijiro Takahashi)		 1955 Avatar for keijiro
54. koxudaxi
(Koudai Aono)		 1941 Avatar for koxudaxi
55. tatsuhiro-t
(Tatsuhiro Tsujikawa)		 1898 Avatar for tatsuhiro-t
56. PINTO0309
(Katsuya Hyodo)		 1895 Avatar for PINTO0309
57. sorairolake
(Shun Sakai)		 1895 Avatar for sorairolake
58. fujiwara
(FUJIWARA Shunichiro)		 1857 Avatar for fujiwara
59. yshrsmz
(Yasuhiro SHIMIZU)		 1856 Avatar for yshrsmz
60. yutkat
(Yuta Katayama)		 1819 Avatar for yutkat
61. kazupon
(kazuya kawaguchi)		 1811 Avatar for kazupon
62. norbusan
(Norbert Preining)		 1779 Avatar for norbusan
63. winebarrel
(Genki Sugawara)		 1768 Avatar for winebarrel
64. coliff
(Christian Oliff)		 1756 Avatar for coliff
65. Jannchie
(Jianqi Pan)		 1745 Avatar for Jannchie
66. sevenc-nanashi
(Nanashi.)		 1737 Avatar for sevenc-nanashi
67. hi-ogawa
(Hiroshi Ogawa)		 1715 Avatar for hi-ogawa
68. Hiroshiba
(Hiroshiba)		 1690 Avatar for Hiroshiba
69. atztogo
(Atsushi Togo)		 1665 Avatar for atztogo
70. syuilo
(syuilo)		 1659 Avatar for syuilo
71. taisukef
(Taisuke Fukuno)		 1653 Avatar for taisukef
72. gkjohnson
(Garrett Johnson)		 1617 Avatar for gkjohnson
73. mayocream
(Mayo Takanashi)		 1606 Avatar for mayocream
74. cpojer
(Christoph Nakazawa)		 1583 Avatar for cpojer
75. mopemope
(Yutaka Matsubara)		 1575 Avatar for mopemope
76. Shougo
(Shougo)		 1558 Avatar for Shougo
77. dalance
(Naoya Hatta)		 1549 Avatar for dalance
78. fumiya-kume
(kuu(Fumiya Kume))		 1541 Avatar for fumiya-kume
79. Him188
(Him188)		 1536 Avatar for Him188
80. eltociear
(Ikko Eltociear Ashimine)		 1513 Avatar for eltociear
81. nobu
(Nobuyoshi Nakada)		 1471 Avatar for nobu
82. 1024jp
(1024jp)		 1469 Avatar for 1024jp
83. mashharuki
(Haruki Kondo)		 1461 Avatar for mashharuki
84. nobuyuki83
(Nobuyuki Umetani)		 1460 Avatar for nobuyuki83
85. rigaya
(rigaya)		 1455 Avatar for rigaya
86. zcbenz
(Cheng)		 1449 Avatar for zcbenz
87. jsakamoto
()		 1440 Avatar for jsakamoto
88. koic
(Koichi ITO)		 1439 Avatar for koic
89. MagicalTux
(Mark Karpelès)		 1429 Avatar for MagicalTux
90. aviatesk
(Shuhei Kadowaki)		 1421 Avatar for aviatesk
91. lambdalisue
(Λlisue)		 1406 Avatar for lambdalisue
92. atsushieno
(Atsushi Eno)		 1399 Avatar for atsushieno
93. matz
(Yukihiro "Matz" Matsumoto)		 1393 Avatar for matz
94. miurahr
(Hiroshi Miura)		 1362 Avatar for miurahr
95. kitao
(Takashi Kitao)		 1332 Avatar for kitao
96. tkoyama010
(Tetsuo Koyama)		 1328 Avatar for tkoyama010
97. usualoma
(Taku Amano)		 1319 Avatar for usualoma
98. hoochanlon
(123456)		 1317 Avatar for hoochanlon
99. champierre
(Junya Ishihara)		 1293 Avatar for champierre
100. rhysd
(Linda_pp)		 1291 Avatar for rhysd
101. amatsuda
(Akira Matsuda)		 1281 Avatar for amatsuda
102. kazu-yamamoto
(Kazu Yamamoto)		 1266 Avatar for kazu-yamamoto
103. Saul-Mirone
(Mirone)		 1240 Avatar for Saul-Mirone
104. mattn
(mattn)		 1226 Avatar for mattn
105. zchee
(Koichi Shiraishi)		 1210 Avatar for zchee
106. smoogipoo
(Dan Balasescu)		 1199 Avatar for smoogipoo
107. siketyan
(Naoki Ikeguchi)		 1181 Avatar for siketyan
108. fa0311
(ふぁ)		 1179 Avatar for fa0311
109. kaityo256
(Hiroshi Watanabe)		 1169 Avatar for kaityo256
110. davetang
(Dave Tang)		 1160 Avatar for davetang
111. lepture
(Hsiaoming Yang)		 1135 Avatar for lepture
112. smorimoto
(Sora Morimoto)		 1133 Avatar for smorimoto
113. kateinoigakukun
(Yuta Saito)		 1082 Avatar for kateinoigakukun
114. neuecc
(Yoshifumi Kawai)		 1082 Avatar for neuecc
115. fosskers
(Colin Woodbury)		 1075 Avatar for fosskers
116. Songmu
(Masayuki Matsuki)		 1071 Avatar for Songmu
117. syohex
(Shohei YOSHIDA)		 1068 Avatar for syohex
118. lhl
(Leonard)		 1067 Avatar for lhl
119. kt3k
(Yoshiya Hinosawa)		 1056 Avatar for kt3k
120. soutaro
(Soutaro Matsumoto)		 1053 Avatar for soutaro
121. ubugeeei
(ubugeeei)		 1053 Avatar for ubugeeei
122. inokawa
()		 1049 Avatar for inokawa
123. ota-meshi
(Yosuke Ota)		 1045 Avatar for ota-meshi
124. neka-nat
(k-tanaka)		 1043 Avatar for neka-nat
125. uzulla
(uzulla / Junichi Ishida)		 1042 Avatar for uzulla
126. tatsuyafujisaki
(Tatsuya Fujisaki)		 1034 Avatar for tatsuyafujisaki
127. 1amageek
(1amageek)		 1030 Avatar for 1amageek
128. andrewmd5
(Andrew Sampson)		 1025 Avatar for andrewmd5
129. privatenumber
(Hiroki Osame)		 1017 Avatar for privatenumber
130. Koras02
(kobiad_ros)		 997 Avatar for Koras02
131. momeemt
(Mutsuha Asada)		 991 Avatar for momeemt
132. koron
(MURAOKA Taro)		 979 Avatar for koron
133. nuskey8
(Yusuke Nakada)		 966 Avatar for nuskey8
134. sorah
(Sorah Fukumori)		 965 Avatar for sorah
135. takahashim
(Masayoshi Takahashi)		 961 Avatar for takahashim
136. qnighy
(Masaki Hara)		 958 Avatar for qnighy
137. noborus
(Noboru Saito)		 950 Avatar for noborus
138. rui314
(Rui Ueyama)		 948 Avatar for rui314
139. int128
(Hidetake Iwata)		 925 Avatar for int128
140. fygar256
(Taisuke Maekawa)		 921 Avatar for fygar256
141. sugyan
(Yoshihiro Sugi)		 920 Avatar for sugyan
142. yutannihilation
(Hiroaki Yutani)		 916 Avatar for yutannihilation
143. yusukebe
(Yusuke Wada)		 914 Avatar for yusukebe
144. dai-shi
(Daishi Kato)		 911 Avatar for dai-shi
145. RikuSato0
(blockify)		 906 Avatar for RikuSato0
146. skanehira
(skanehira)		 900 Avatar for skanehira
147. shimbaco
(Shimba, Koji)		 898 Avatar for shimbaco
148. shogo4405
(shogo4405)		 895 Avatar for shogo4405
149. nagadomi
()		 894 Avatar for nagadomi
150. komagata
(Masaki Komagata)		 892 Avatar for komagata
151. matanki-saito
((*`・∀・´*))		 889 Avatar for matanki-saito
152. JohnTitor
(Yuki Okushi)		 873 Avatar for JohnTitor
153. masarakki
(masarakki)		 871 Avatar for masarakki
154. jmettraux
(John Mettraux)		 870 Avatar for jmettraux
155. piroor
(YUKI "Piro" Hiroshi)		 850 Avatar for piroor
156. msakai
(Masahiro Sakai)		 849 Avatar for msakai
157. dvcrn
(David)		 846 Avatar for dvcrn
158. kurone-kito
(Kuroné Kito (黒音キト))		 844 Avatar for kurone-kito
159. asukaminato0721
(Asuka Minato)		 840 Avatar for asukaminato0721
160. philwo
(Philipp Wollermann)		 840 Avatar for philwo
161. melpon
(melpon)		 838 Avatar for melpon
162. iAJue
(阿珏)		 827 Avatar for iAJue
163. dee-shar
(huok)		 823 Avatar for dee-shar
164. babarot
(Masaki ISHIYAMA)		 818 Avatar for babarot
165. wasabeef
(Daichi Furiya)		 809 Avatar for wasabeef
166. hatoo
()		 805 Avatar for hatoo
167. baku89
(Baku 麦)		 802 Avatar for baku89
168. martinheidegger
(Martin Heidegger)		 800 Avatar for martinheidegger
169. professorDeveloper
(Azamov X)		 795 Avatar for professorDeveloper
170. sigma7863
(Sigma)		 794 Avatar for sigma7863
171. neet
(Ryō Igarashi (五十嵐 涼))		 793 Avatar for neet
172. aliceinwire
(Arisu Tachibana)		 789 Avatar for aliceinwire
173. yowatanabe
(Yoshiyuki Watanabe)		 786 Avatar for yowatanabe
174. nateberkopec
(Nate Berkopec)		 784 Avatar for nateberkopec
175. sideshowbarker
()		 780 Avatar for sideshowbarker
176. sotayamashita
(Sam Yamashita)		 775 Avatar for sotayamashita
177. Kamesuta
(Kamesuta)		 768 Avatar for Kamesuta
178. conao3
(Naoya Yamashita)		 765 Avatar for conao3
179. szkkng
(Kengo)		 763 Avatar for szkkng
180. rinsuki
(rinsuki)		 756 Avatar for rinsuki
181. XiaomingX
(Y11)		 754 Avatar for XiaomingX
182. fukamachi
(Eitaro Fukamachi)		 745 Avatar for fukamachi
183. shirakaba
(Jamie Birch)		 744 Avatar for shirakaba
184. ykob
(Yoichi Kobayashi)		 741 Avatar for ykob
185. hrsh7th
(hrsh7th)		 731 Avatar for hrsh7th
186. mayuki
(Mayuki Sawatari)		 724 Avatar for mayuki
187. NicolasDorier
(Nicolas Dorier)		 709 Avatar for NicolasDorier
188. zonuexe
(USAMI Kenta)		 705 Avatar for zonuexe
189. saki4510t
(saki)		 703 Avatar for saki4510t
190. domenic
(Domenic Denicola)		 696 Avatar for domenic
191. audreyfeldroy
(Audrey M. Roy Greenfeld)		 692 Avatar for audreyfeldroy
192. kazuho
(Kazuho Oku)		 690 Avatar for kazuho
193. c-bata
(c-bata)		 681 Avatar for c-bata
194. kmizu
(Kota Mizushima)		 680 Avatar for kmizu
195. Watson1978
(Shizuo Fujita)		 672 Avatar for Watson1978
196. pocke
(Masataka Pocke Kuwabara)		 672 Avatar for pocke
197. muukii
(Hiroshi Kimura)		 662 Avatar for muukii
198. uezo
(uezo)		 654 Avatar for uezo
199. ryohey
(ryohey)		 641 Avatar for ryohey
200. bmf-san
(Kenta Takeuchi)		 639 Avatar for bmf-san
201. lovyan03
(lovyan03)		 635 Avatar for lovyan03
202. mattatz
(Masatatsu Nakamura)		 630 Avatar for mattatz
203. AchrafReyani
(Achraf)		 628 Avatar for AchrafReyani
204. tanaikech
(Kanshi TANAIKE)		 616 Avatar for tanaikech
205. nakasyou
(Shotaro Nakamura)		 615 Avatar for nakasyou
206. reindex-ot
(Re*Index. (ot_inc))		 612 Avatar for reindex-ot
207. mosuka
(Minoru OSUKA)		 609 Avatar for mosuka
208. kyamagu
(Kota Yamaguchi)		 608 Avatar for kyamagu
209. nuta
(Seiya Nuta)		 607 Avatar for nuta
210. akinomyoga
(Koichi Murase)		 605 Avatar for akinomyoga
211. onevcat
(Wei Wang)		 603 Avatar for onevcat
212. planetchili
(chili)		 602 Avatar for planetchili
213. mumoshu
(Yusuke Kuoka)		 598 Avatar for mumoshu
214. ninoseki
(Manabu Niseki)		 597 Avatar for ninoseki
215. konn
(Hiromi Ishii)		 597 Avatar for konn
216. seratch
(Kazuhiro Sera)		 597 Avatar for seratch
217. taichi-ishitani
(Taichi Ishitani)		 594 Avatar for taichi-ishitani
218. Reputeless
(Ryo Suzuki)		 592 Avatar for Reputeless
219. luadebug
(Saikari)		 587 Avatar for luadebug
220. hadashiA
(hadashiA)		 586 Avatar for hadashiA
221. GOROman
(GOROman)		 586 Avatar for GOROman
222. machida
(machida)		 584 Avatar for machida
223. cxxxr
(cxxxr)		 580 Avatar for cxxxr
224. dev-yakuza
(DeKu)		 579 Avatar for dev-yakuza
225. rmackay9
(Randy Mackay)		 572 Avatar for rmackay9
226. the0cp
(Theodore Cooper)		 568 Avatar for the0cp
227. Cloudef
(Jari Vetoniemi)		 568 Avatar for Cloudef
228. fumiyasac
(Fumiya Sakai)		 562 Avatar for fumiyasac
229. hiroppy
(Yuta Hiroto)		 561 Avatar for hiroppy
230. youtalk
(Yutaka Kondo)		 551 Avatar for youtalk
231. mapconcierge
(Taichi FURUHASHI)		 547 Avatar for mapconcierge
232. cordx56
(Yuki Okamoto)		 547 Avatar for cordx56
233. alvarobartt
(Alvaro Bartolome)		 544 Avatar for alvarobartt
234. termoshtt
(Toshiki Teramura)		 544 Avatar for termoshtt
235. yuuki
(Yuuki TSUBOUCHI)		 541 Avatar for yuuki
236. ryo8000
(Ryo Hasegawa)		 538 Avatar for ryo8000
237. ikwzm
(KAWAZOME Ichiro)		 538 Avatar for ikwzm
238. cho45
(Satoh, Hiroh)		 529 Avatar for cho45
239. hashrock
(hashrock)		 527 Avatar for hashrock
240. yug1224
(Yuji Yamaguchi)		 524 Avatar for yug1224
241. Makio64
(Makio64)		 521 Avatar for Makio64
242. willnet
(Shinichi Maeshima)		 520 Avatar for willnet
243. shaoanlu
()		 519 Avatar for shaoanlu
244. k-okada
(Kei Okada)		 518 Avatar for k-okada
245. hoothin
()		 517 Avatar for hoothin
246. wkentaro
(Kentaro Wada)		 515 Avatar for wkentaro
247. craftzdog
(Takuya Matsuyama)		 513 Avatar for craftzdog
248. gera2ld
(Gerald)		 511 Avatar for gera2ld
249. udzura
(Kondo Uchio)		 504 Avatar for udzura
250. Jxck
(Jxck)		 504 Avatar for Jxck
251. miyakogi
(miyaco)		 503 Avatar for miyakogi
252. tsurugi3333
(Tsurugi)		 502 Avatar for tsurugi3333
253. cosmo0920
(Hiroshi Hatake)		 502 Avatar for cosmo0920
254. giginet
(Kohki Miki)		 498 Avatar for giginet
255. kenjinote
(kenji)		 496 Avatar for kenjinote
256. tado
(Atsushi Tadokoro)		 496 Avatar for tado

Organizations

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