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 2025-06-07 12:15:29 +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 121251 total users in the region and you need at least 195 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. azu
(azu)		 5328 Avatar for azu
2. yuiseki
(yuiseki)		 5319 Avatar for yuiseki
3. guitarrapc
(Ikiru Yoshizaki)		 5311 Avatar for guitarrapc
4. yuki-kimoto
(Yuki Kimoto)		 5280 Avatar for yuki-kimoto
5. taiki-e
(Taiki Endo)		 5263 Avatar for taiki-e
6. j5ik2o
(Junichi Kato)		 5060 Avatar for j5ik2o
7. suzuki-shunsuke
(Shunsuke Suzuki)		 4953 Avatar for suzuki-shunsuke
8. shogo82148
(ICHINOSE Shogo)		 4516 Avatar for shogo82148
9. bobbens
(Edgar Simo-Serra)		 4438 Avatar for bobbens
10. sue445
(Go Sueyoshi)		 3928 Avatar for sue445
11. sile
(Takeru Ohta)		 3763 Avatar for sile
12. toastkidjp
(Toast kid)		 3659 Avatar for toastkidjp
13. yasulab
(Yohei Yasukawa)		 3657 Avatar for yasulab
14. peppy
(Dean Herbert)		 3577 Avatar for peppy
15. hakatashi
(Koki Takahashi)		 3517 Avatar for hakatashi
16. hsbt
(Hiroshi SHIBATA)		 3420 Avatar for hsbt
17. ryota-murakami
(Ryota Murakami)		 3365 Avatar for ryota-murakami
18. koriym
(Akihito Koriyama)		 3326 Avatar for koriym
19. YumNumm
(Ryotaro Onoue)		 3156 Avatar for YumNumm
20. anatawa12
(anatawa12)		 3152 Avatar for anatawa12
21. kentaro
(Kentaro Kuribayashi)		 3095 Avatar for kentaro
22. yanorei32
(Ray Yano | あねてあ)		 3007 Avatar for yanorei32
23. miyako
(Keisuke Miyako)		 2938 Avatar for miyako
24. kou
(Sutou Kouhei)		 2794 Avatar for kou
25. making
(Toshiaki Maki)		 2771 Avatar for making
26. tk0miya
(Takeshi KOMIYA)		 2677 Avatar for tk0miya
27. k1LoW
(Ken’ichiro Oyama)		 2674 Avatar for k1LoW
28. ursm
(Keita Urashima)		 2672 Avatar for ursm
29. kishikawakatsumi
(Kishikawa Katsumi)		 2664 Avatar for kishikawakatsumi
30. koxudaxi
(Koudai Aono)		 2593 Avatar for koxudaxi
31. xuwei-k
(kenji yoshida)		 2542 Avatar for xuwei-k
32. hajimehoshi
(Hajime Hoshi)		 2456 Avatar for hajimehoshi
33. takahirom
(Takahiro Menju)		 2424 Avatar for takahirom
34. AkihiroSuda
(Akihiro Suda)		 2320 Avatar for AkihiroSuda
35. tekezo
(Takayama Fumihiko)		 2283 Avatar for tekezo
36. halogenandtoast
(Matthew Mongeau)		 2241 Avatar for halogenandtoast
37. kitao
(Takashi Kitao)		 2229 Avatar for kitao
38. sorairolake
(Shun Sakai)		 2177 Avatar for sorairolake
39. hakuturu583
(Masaya Kataoka)		 2132 Avatar for hakuturu583
40. tmori
(Takashi Mori)		 2129 Avatar for tmori
41. bannzai
(bannzai)		 2121 Avatar for bannzai
42. terasakisatoshi
(Satoshi Terasaki)		 2112 Avatar for terasakisatoshi
43. whitphx
(Yuichiro Tachibana (Tsuchiya))		 2055 Avatar for whitphx
44. atztogo
(Atsushi Togo)		 2007 Avatar for atztogo
45. winebarrel
(Genki Sugawara)		 1957 Avatar for winebarrel
46. zcbenz
(Cheng)		 1941 Avatar for zcbenz
47. tkoyama010
(Tetsuo Koyama)		 1878 Avatar for tkoyama010
48. yutkat
(Yuta Katayama)		 1839 Avatar for yutkat
49. kateinoigakukun
(Yuta Saito)		 1838 Avatar for kateinoigakukun
50. tokuhirom
(Tokuhiro Matsuno)		 1796 Avatar for tokuhirom
51. Shougo
(Shougo)		 1786 Avatar for Shougo
52. harupy
(Harutaka Kawamura)		 1767 Avatar for harupy
53. fa0311
(ふぁ)		 1712 Avatar for fa0311
54. hatoo
()		 1711 Avatar for hatoo
55. keijiro
(Keijiro Takahashi)		 1702 Avatar for keijiro
56. kazupon
(kazuya kawaguchi)		 1702 Avatar for kazupon
57. norbusan
(Norbert Preining)		 1672 Avatar for norbusan
58. taisukef
(Taisuke Fukuno)		 1661 Avatar for taisukef
59. kt3k
(Yoshiya Hinosawa)		 1641 Avatar for kt3k
60. yamadashy
(Kazuki Yamada)		 1638 Avatar for yamadashy
61. tatsuhiro-t
(Tatsuhiro Tsujikawa)		 1624 Avatar for tatsuhiro-t
62. sevenc-nanashi
(Nanashi.)		 1622 Avatar for sevenc-nanashi
63. dalance
(Naoya Hatta)		 1612 Avatar for dalance
64. EdamAme-x
(EdamAmex)		 1579 Avatar for EdamAme-x
65. t4sk
()		 1575 Avatar for t4sk
66. konn
(Hiromi Ishii)		 1542 Avatar for konn
67. sapphi-red
(翠)		 1522 Avatar for sapphi-red
68. fosskers
(Colin Woodbury)		 1517 Avatar for fosskers
69. MagicalTux
(Mark Karpelès)		 1517 Avatar for MagicalTux
70. siketyan
(Naoki Ikeguchi)		 1510 Avatar for siketyan
71. kazu-yamamoto
(Kazu Yamamoto)		 1504 Avatar for kazu-yamamoto
72. hi-ogawa
(Hiroshi Ogawa)		 1503 Avatar for hi-ogawa
73. gkjohnson
(Garrett Johnson)		 1501 Avatar for gkjohnson
74. rigaya
(rigaya)		 1500 Avatar for rigaya
75. mayocream
(Mayo Takanashi)		 1487 Avatar for mayocream
76. nopnop2002
()		 1444 Avatar for nopnop2002
77. fumiya-kume
(kuu(Fumiya Kume))		 1441 Avatar for fumiya-kume
78. fujiwara
(FUJIWARA Shunichiro)		 1439 Avatar for fujiwara
79. koic
(Koichi ITO)		 1437 Avatar for koic
80. jsakamoto
()		 1414 Avatar for jsakamoto
81. 1024jp
(1024jp)		 1411 Avatar for 1024jp
82. smoogipoo
(Dan Balasescu)		 1382 Avatar for smoogipoo
83. mashharuki
(Haruki Kondo)		 1373 Avatar for mashharuki
84. soutaro
(Soutaro Matsumoto)		 1372 Avatar for soutaro
85. Avimitin
(Jiongjia Lu)		 1341 Avatar for Avimitin
86. Saul-Mirone
(Mirone)		 1324 Avatar for Saul-Mirone
87. cpojer
(Christoph Nakazawa)		 1321 Avatar for cpojer
88. marttp
(Thanaphoom Babparn)		 1319 Avatar for marttp
89. yutannihilation
(Hiroaki Yutani)		 1313 Avatar for yutannihilation
90. rhysd
(Linda_pp)		 1294 Avatar for rhysd
91. lambdalisue
(Λlisue)		 1271 Avatar for lambdalisue
92. Jannchie
(Jianqi Pan)		 1262 Avatar for Jannchie
93. haya14busa
(haya14busa)		 1258 Avatar for haya14busa
94. coliff
(Christian Oliff)		 1250 Avatar for coliff
95. shimbaco
(Shimba, Koji)		 1232 Avatar for shimbaco
96. jmettraux
(John Mettraux)		 1212 Avatar for jmettraux
97. piroor
(YUKI "Piro" Hiroshi)		 1189 Avatar for piroor
98. syohex
(Shohei YOSHIDA)		 1175 Avatar for syohex
99. nuskey8
(Yusuke Nakada)		 1165 Avatar for nuskey8
100. mattn
(mattn)		 1160 Avatar for mattn
101. tsurugi3333
(Tsurugi)		 1146 Avatar for tsurugi3333
102. pilcrowonpaper
(pilcrow)		 1114 Avatar for pilcrowonpaper
103. neuecc
(Yoshifumi Kawai)		 1114 Avatar for neuecc
104. msakai
(Masahiro Sakai)		 1105 Avatar for msakai
105. nobu
(Nobuyoshi Nakada)		 1095 Avatar for nobu
106. nobuyuki83
(Nobuyuki Umetani)		 1090 Avatar for nobuyuki83
107. SunsetMkt
(Sunset Mikoto)		 1083 Avatar for SunsetMkt
108. hoothin
()		 1080 Avatar for hoothin
109. miyaichi
(Yoshihiko Miyaichi)		 1080 Avatar for miyaichi
110. Cloudef
(Jari Vetoniemi)		 1067 Avatar for Cloudef
111. katopz
(Todsaporn Banjerdkit)		 1062 Avatar for katopz
112. baku89
(Baku 麦)		 1057 Avatar for baku89
113. unhappychoice
(Yuji Ueki)		 1051 Avatar for unhappychoice
114. kurone-kito
(Kuroné Kito (黒音キト))		 1016 Avatar for kurone-kito
115. momeemt
(Mutsuha Asada)		 1013 Avatar for momeemt
116. miurahr
(Hiroshi Miura)		 1007 Avatar for miurahr
117. kaityo256
(Hiroshi Watanabe)		 1006 Avatar for kaityo256
118. int128
(Hidetake Iwata)		 988 Avatar for int128
119. yusukebe
(Yusuke Wada)		 976 Avatar for yusukebe
120. atsushieno
(Atsushi Eno)		 966 Avatar for atsushieno
121. XiaomingX
(Y11)		 958 Avatar for XiaomingX
122. davetang
(Dave Tang)		 953 Avatar for davetang
123. dai-shi
(Daishi Kato)		 951 Avatar for dai-shi
124. noborus
(Noboru Saito)		 941 Avatar for noborus
125. masarakki
(masarakki)		 935 Avatar for masarakki
126. PINTO0309
(Katsuya Hyodo)		 925 Avatar for PINTO0309
127. ubugeeei
(ubugeeei)		 918 Avatar for ubugeeei
128. champierre
(Junya Ishihara)		 912 Avatar for champierre
129. ota-meshi
(Yosuke Ota)		 898 Avatar for ota-meshi
130. youtalk
(Yutaka Kondo)		 896 Avatar for youtalk
131. bluele
(Jun Kimura)		 887 Avatar for bluele
132. Quramy
(Yosuke Kurami)		 884 Avatar for Quramy
133. ianlewis
(Ian Lewis)		 882 Avatar for ianlewis
134. matanki-saito
((*`・∀・´*))		 880 Avatar for matanki-saito
135. qnighy
(Masaki Hara)		 873 Avatar for qnighy
136. NicolasDorier
(Nicolas Dorier)		 871 Avatar for NicolasDorier
137. privatenumber
(Hiroki Osame)		 861 Avatar for privatenumber
138. cxxxr
(cxxxr)		 856 Avatar for cxxxr
139. mayuki
(Mayuki Sawatari)		 854 Avatar for mayuki
140. Hiroshiba
(Hiroshiba)		 853 Avatar for Hiroshiba
141. takahashim
(Masayoshi Takahashi)		 846 Avatar for takahashim
142. dev-yakuza
(DeKu)		 841 Avatar for dev-yakuza
143. osteele
(Oliver Steele)		 841 Avatar for osteele
144. philwo
(Philipp Wollermann)		 837 Avatar for philwo
145. viasnake
(snake)		 833 Avatar for viasnake
146. Songmu
(Masayuki Matsuki)		 820 Avatar for Songmu
147. matz
(Yukihiro "Matz" Matsumoto)		 815 Avatar for matz
148. melpon
(melpon)		 805 Avatar for melpon
149. toshimaru
(Toshimaru)		 804 Avatar for toshimaru
150. Jxck
(Jxck)		 797 Avatar for Jxck
151. ab25cq
(ab25cq)		 782 Avatar for ab25cq
152. inokawa
()		 775 Avatar for inokawa
153. sksat
(sksat)		 769 Avatar for sksat
154. liquidz
(Iizuka Masashi)		 766 Avatar for liquidz
155. mob-sakai
(mob-sakai)		 764 Avatar for mob-sakai
156. lhl
(Leonard)		 760 Avatar for lhl
157. babarot
(Masaki ISHIYAMA)		 759 Avatar for babarot
158. shimodateakira
(Akira Shimodate)		 756 Avatar for shimodateakira
159. conao3
(Naoya Yamashita)		 752 Avatar for conao3
160. ninoseki
(Manabu Niseki)		 749 Avatar for ninoseki
161. mesqueeb
(Luca Ban)		 726 Avatar for mesqueeb
162. amatsuda
(Akira Matsuda)		 721 Avatar for amatsuda
163. rui314
(Rui Ueyama)		 716 Avatar for rui314
164. aviatesk
(Shuhei Kadowaki)		 711 Avatar for aviatesk
165. reindex-ot
(Re*Index. (ot_inc))		 710 Avatar for reindex-ot
166. shogo4405
(shogo4405)		 708 Avatar for shogo4405
167. uzulla
(uzulla / Junichi Ishida)		 707 Avatar for uzulla
168. e-jigsaw
(jigsaw)		 695 Avatar for e-jigsaw
169. muukii
(Hiroshi Kimura)		 694 Avatar for muukii
170. nagadomi
()		 693 Avatar for nagadomi
171. fumiyasac
(Fumiya Sakai)		 692 Avatar for fumiyasac
172. koide3
()		 689 Avatar for koide3
173. ykob
(Yoichi Kobayashi)		 685 Avatar for ykob
174. akinomyoga
(Koichi Murase)		 685 Avatar for akinomyoga
175. asukaminato0721
(Asuka Minato)		 679 Avatar for asukaminato0721
176. sorah
(Sorah Fukumori)		 675 Avatar for sorah
177. andrewmd5
(Andrew Sampson)		 672 Avatar for andrewmd5
178. yannklein
(Yann Klein)		 661 Avatar for yannklein
179. komagata
(Masaki Komagata)		 649 Avatar for komagata
180. neet
(Ryō Igarashi (五十嵐 涼))		 643 Avatar for neet
181. craftzdog
(Takuya Matsuyama)		 640 Avatar for craftzdog
182. taichi-ishitani
(Taichi Ishitani)		 640 Avatar for taichi-ishitani
183. hadashiA
(hadashiA)		 632 Avatar for hadashiA
184. ryohey
(ryohey)		 625 Avatar for ryohey
185. kenjis
(kenjis)		 617 Avatar for kenjis
186. domenic
(Domenic Denicola)		 609 Avatar for domenic
187. neka-nat
(Shirokuma (k tanaka))		 608 Avatar for neka-nat
188. SoraSuegami
(Sora Suegami)		 605 Avatar for SoraSuegami
189. BcRikko
(B.C.Rikko)		 605 Avatar for BcRikko
190. martinheidegger
(Martin Heidegger)		 605 Avatar for martinheidegger
191. seratch
(Kazuhiro Sera)		 599 Avatar for seratch
192. nuta
(Seiya Nuta)		 597 Avatar for nuta
193. planetchili
(chili)		 596 Avatar for planetchili
194. yug1224
(Yuji Yamaguchi)		 588 Avatar for yug1224
195. hrsh7th
(hrsh7th)		 570 Avatar for hrsh7th
196. dvcrn
(David)		 569 Avatar for dvcrn
197. yanex
(Yan Zhulanow)		 563 Avatar for yanex
198. giginet
(Kohki Miki)		 561 Avatar for giginet
199. miurla
(Yoshiki Miura)		 560 Avatar for miurla
200. jamesdbrock
(James Brock)		 560 Avatar for jamesdbrock
201. mattatz
(Masatatsu Nakamura)		 559 Avatar for mattatz
202. sugyan
(Yoshihiro Sugi)		 557 Avatar for sugyan
203. koron
(MURAOKA Taro)		 544 Avatar for koron
204. zchee
(Koichi Shiraishi)		 543 Avatar for zchee
205. yhatt
(Yuki Hattori)		 542 Avatar for yhatt
206. sobri909
(Matt Greenfield)		 540 Avatar for sobri909
207. CaseyNelson314
(Okawa Yusuke)		 539 Avatar for CaseyNelson314
208. lovyan03
(lovyan03)		 539 Avatar for lovyan03
209. franciscop
(Francisco Presencia)		 536 Avatar for franciscop
210. mariotaku
(Mariotaku)		 533 Avatar for mariotaku
211. Reputeless
(Ryo Suzuki)		 533 Avatar for Reputeless
212. cordx56
(Yuki Okamoto)		 532 Avatar for cordx56
213. faithandbrave
(Akira Takahashi)		 531 Avatar for faithandbrave
214. ran-sama
(Yakumo Ran)		 530 Avatar for ran-sama
215. RINEARN
(RINEARN)		 527 Avatar for RINEARN
216. sotayamashita
(Sam Yamashita)		 527 Avatar for sotayamashita
217. Watson1978
(Shizuo Fujita)		 526 Avatar for Watson1978
218. shirakaba
(Jamie Birch)		 521 Avatar for shirakaba
219. wkentaro
(Kentaro Wada)		 518 Avatar for wkentaro
220. uribo
(Shinya Uryu)		 518 Avatar for uribo
221. saki4510t
(saki)		 518 Avatar for saki4510t
222. otiai10
(Hiromu OCHIAI)		 516 Avatar for otiai10
223. szkkng
(Kengo)		 515 Avatar for szkkng
224. termoshtt
(Toshiki Teramura)		 513 Avatar for termoshtt
225. gfngfn
(Takashi Suwa)		 511 Avatar for gfngfn
226. Koras02
(kobiad_ros)		 511 Avatar for Koras02
227. itchyny
(itchyny)		 509 Avatar for itchyny
228. Kamesuta
(Kamesuta)		 509 Avatar for Kamesuta
229. shaoanlu
()		 507 Avatar for shaoanlu
230. kazuho
(Kazuho Oku)		 503 Avatar for kazuho
231. SakiTakamachi
(Saki Takamachi)		 502 Avatar for SakiTakamachi
232. uhooi
()		 494 Avatar for uhooi
233. udzura
(Kondo Uchio)		 489 Avatar for udzura
234. sideshowbarker
()		 481 Avatar for sideshowbarker
235. mame
(Yusuke Endoh)		 478 Avatar for mame
236. koute
(Koute)		 475 Avatar for koute
237. k-okada
(Kei Okada)		 465 Avatar for k-okada
238. Kazuhito00
(KazuhitoTakahashi)		 462 Avatar for Kazuhito00
239. take-cheeze
(Takeshi Watanabe)		 458 Avatar for take-cheeze
240. 1000ch
(Shogo Sensui)		 457 Avatar for 1000ch
241. OvidijusParsiunas
(Ovidijus Parsiunas)		 456 Avatar for OvidijusParsiunas
242. yude
(yude)		 454 Avatar for yude
243. LaoshuBaby
(快乐的老鼠宝宝)		 450 Avatar for LaoshuBaby
244. lacolaco
(Suguru Inatomi)		 450 Avatar for lacolaco
245. frandiox
(Fran Dios)		 445 Avatar for frandiox
246. himkt
(himkt)		 443 Avatar for himkt
247. ikwzm
(KAWAZOME Ichiro)		 443 Avatar for ikwzm
248. 3UR
()		 442 Avatar for 3UR
249. kadamwhite
(K Adam White)		 442 Avatar for kadamwhite
250. ktoso
(Konrad `ktoso` Malawski)		 440 Avatar for ktoso
251. rinsuki
(rinsuki)		 439 Avatar for rinsuki
252. c-bata
(c-bata)		 438 Avatar for c-bata
253. creasty
(Yuki Iwanaga)		 437 Avatar for creasty
254. yhara
(Yutaka HARA)		 433 Avatar for yhara
255. okuramasafumi
(OKURA Masafumi)		 422 Avatar for okuramasafumi
256. syumai
(syumai)		 417 Avatar for syumai

Organizations

Rank Organization Members
1. ruby 8
2. vim-jp 7
3. cpprefjp 6
4. groonga 4
5. github-beta 4
6. ruby-no-kai 4
7. oss-gate 4
8. web-platform-tests 4
9. railsgirls 3
10. mrbgems 3