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 2025-07-07 12:16:03 +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 122207 total users in the region and you need at least 172 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. manman4
()		 7153 Avatar for manman4
2. azu
(azu)		 5543 Avatar for azu
3. guitarrapc
(Ikiru Yoshizaki)		 5469 Avatar for guitarrapc
4. taiki-e
(Taiki Endo)		 5161 Avatar for taiki-e
5. bobbens
(Edgar Simo-Serra)		 5160 Avatar for bobbens
6. yuki-kimoto
(Yuki Kimoto)		 4961 Avatar for yuki-kimoto
7. suzuki-shunsuke
(Shunsuke Suzuki)		 4884 Avatar for suzuki-shunsuke
8. yuiseki
(yuiseki)		 4834 Avatar for yuiseki
9. j5ik2o
(Junichi Kato)		 4626 Avatar for j5ik2o
10. sile
(Takeru Ohta)		 4148 Avatar for sile
11. shogo82148
(ICHINOSE Shogo)		 3822 Avatar for shogo82148
12. yasulab
(Yohei Yasukawa)		 3700 Avatar for yasulab
13. sue445
(Go Sueyoshi)		 3629 Avatar for sue445
14. toastkidjp
(Toast kid)		 3621 Avatar for toastkidjp
15. peppy
(Dean Herbert)		 3566 Avatar for peppy
16. hakatashi
(Koki Takahashi)		 3551 Avatar for hakatashi
17. hsbt
(Hiroshi SHIBATA)		 3525 Avatar for hsbt
18. koriym
(Akihito Koriyama)		 3283 Avatar for koriym
19. ryota-murakami
(Ryota Murakami)		 3242 Avatar for ryota-murakami
20. yanorei32
(Ray Yano | あねてあ)		 3135 Avatar for yanorei32
21. anatawa12
(anatawa12)		 3083 Avatar for anatawa12
22. kentaro
(Kentaro Kuribayashi)		 3055 Avatar for kentaro
23. h3poteto
(AkiraFukushima)		 3011 Avatar for h3poteto
24. miyako
(Keisuke Miyako)		 2984 Avatar for miyako
25. YumNumm
(Ryotaro Onoue)		 2948 Avatar for YumNumm
26. tk0miya
(Takeshi KOMIYA)		 2772 Avatar for tk0miya
27. kou
(Sutou Kouhei)		 2768 Avatar for kou
28. making
(Toshiaki Maki)		 2669 Avatar for making
29. koxudaxi
(Koudai Aono)		 2662 Avatar for koxudaxi
30. k1LoW
(Ken’ichiro Oyama)		 2626 Avatar for k1LoW
31. ursm
(Keita Urashima)		 2583 Avatar for ursm
32. xuwei-k
(kenji yoshida)		 2583 Avatar for xuwei-k
33. kishikawakatsumi
(Kishikawa Katsumi)		 2536 Avatar for kishikawakatsumi
34. takahirom
(Takahiro Menju)		 2434 Avatar for takahirom
35. hajimehoshi
(Hajime Hoshi)		 2419 Avatar for hajimehoshi
36. terasakisatoshi
(Satoshi Terasaki)		 2349 Avatar for terasakisatoshi
37. AkihiroSuda
(Akihiro Suda)		 2264 Avatar for AkihiroSuda
38. halogenandtoast
(Matthew Mongeau)		 2246 Avatar for halogenandtoast
39. whitphx
(Yuichiro Tachibana (Tsuchiya))		 2244 Avatar for whitphx
40. yuwata
(Yu Watanabe)		 2234 Avatar for yuwata
41. tekezo
(Takayama Fumihiko)		 2190 Avatar for tekezo
42. bannzai
(bannzai)		 2138 Avatar for bannzai
43. kitao
(Takashi Kitao)		 2133 Avatar for kitao
44. sorairolake
(Shun Sakai)		 2100 Avatar for sorairolake
45. tmori
(Takashi Mori)		 2089 Avatar for tmori
46. Comamoca
(Comamoca)		 2062 Avatar for Comamoca
47. hakuturu583
(Masaya Kataoka)		 2023 Avatar for hakuturu583
48. atztogo
(Atsushi Togo)		 2018 Avatar for atztogo
49. zcbenz
(Cheng)		 1997 Avatar for zcbenz
50. yamadashy
(Kazuki Yamada)		 1848 Avatar for yamadashy
51. tkoyama010
(Tetsuo Koyama)		 1836 Avatar for tkoyama010
52. t4sk
()		 1831 Avatar for t4sk
53. harupy
(Harutaka Kawamura)		 1788 Avatar for harupy
54. winebarrel
(Genki Sugawara)		 1774 Avatar for winebarrel
55. Shougo
(Shougo)		 1770 Avatar for Shougo
56. yutkat
(Yuta Katayama)		 1747 Avatar for yutkat
57. keijiro
(Keijiro Takahashi)		 1726 Avatar for keijiro
58. tokuhirom
(Tokuhiro Matsuno)		 1712 Avatar for tokuhirom
59. HiroIshida
(Hirokazu Ishida)		 1707 Avatar for HiroIshida
60. hatoo
()		 1696 Avatar for hatoo
61. sapphi-red
(翠)		 1695 Avatar for sapphi-red
62. taisukef
(Taisuke Fukuno)		 1689 Avatar for taisukef
63. kazupon
(kazuya kawaguchi)		 1666 Avatar for kazupon
64. kateinoigakukun
(Yuta Saito)		 1666 Avatar for kateinoigakukun
65. tatsuhiro-t
(Tatsuhiro Tsujikawa)		 1608 Avatar for tatsuhiro-t
66. fa0311
(ふぁ)		 1578 Avatar for fa0311
67. sevenc-nanashi
(Nanashi.)		 1553 Avatar for sevenc-nanashi
68. fumiya-kume
(kuu(Fumiya Kume))		 1542 Avatar for fumiya-kume
69. tatsuyafujisaki
(Tatsuya Fujisaki)		 1534 Avatar for tatsuyafujisaki
70. dalance
(Naoya Hatta)		 1521 Avatar for dalance
71. hi-ogawa
(Hiroshi Ogawa)		 1504 Avatar for hi-ogawa
72. kazu-yamamoto
(Kazu Yamamoto)		 1500 Avatar for kazu-yamamoto
73. mayocream
(Mayo Takanashi)		 1497 Avatar for mayocream
74. rigaya
(rigaya)		 1478 Avatar for rigaya
75. siketyan
(Naoki Ikeguchi)		 1476 Avatar for siketyan
76. kt3k
(Yoshiya Hinosawa)		 1468 Avatar for kt3k
77. Jannchie
(Jianqi Pan)		 1465 Avatar for Jannchie
78. cpojer
(Christoph Nakazawa)		 1438 Avatar for cpojer
79. koic
(Koichi ITO)		 1419 Avatar for koic
80. jsakamoto
()		 1408 Avatar for jsakamoto
81. gkjohnson
(Garrett Johnson)		 1406 Avatar for gkjohnson
82. yutannihilation
(Hiroaki Yutani)		 1396 Avatar for yutannihilation
83. fosskers
(Colin Woodbury)		 1387 Avatar for fosskers
84. smoogipoo
(Dan Balasescu)		 1384 Avatar for smoogipoo
85. EdamAme-x
(EdamAmex)		 1359 Avatar for EdamAme-x
86. kbinani
(kbinani)		 1358 Avatar for kbinani
87. nopnop2002
()		 1358 Avatar for nopnop2002
88. coliff
(Christian Oliff)		 1353 Avatar for coliff
89. nuskey8
(Yusuke Nakada)		 1345 Avatar for nuskey8
90. lambdalisue
(Λlisue)		 1342 Avatar for lambdalisue
91. Saul-Mirone
(Mirone)		 1335 Avatar for Saul-Mirone
92. MagicalTux
(Mark Karpelès)		 1322 Avatar for MagicalTux
93. mashharuki
(Haruki Kondo)		 1316 Avatar for mashharuki
94. konn
(Hiromi Ishii)		 1303 Avatar for konn
95. soutaro
(Soutaro Matsumoto)		 1292 Avatar for soutaro
96. 1024jp
(1024jp)		 1284 Avatar for 1024jp
97. Avimitin
(Jiongjia Lu)		 1260 Avatar for Avimitin
98. fujiwara
(FUJIWARA Shunichiro)		 1260 Avatar for fujiwara
99. smorimoto
(Sora Morimoto)		 1230 Avatar for smorimoto
100. mizchi
(Kotaro Chikuba)		 1227 Avatar for mizchi
101. SunsetMkt
(Sunset Mikoto)		 1218 Avatar for SunsetMkt
102. jmettraux
(John Mettraux)		 1206 Avatar for jmettraux
103. shimbaco
(Shimba, Koji)		 1202 Avatar for shimbaco
104. piroor
(YUKI "Piro" Hiroshi)		 1194 Avatar for piroor
105. unhappychoice
(Yuji Ueki)		 1184 Avatar for unhappychoice
106. rhysd
(Linda_pp)		 1173 Avatar for rhysd
107. atsushieno
(Atsushi Eno)		 1172 Avatar for atsushieno
108. haya14busa
(haya14busa)		 1170 Avatar for haya14busa
109. marttp
(Thanaphoom Babparn)		 1161 Avatar for marttp
110. syohex
(Shohei YOSHIDA)		 1152 Avatar for syohex
111. nobu
(Nobuyoshi Nakada)		 1148 Avatar for nobu
112. kurone-kito
(Kuroné Kito (黒音キト))		 1143 Avatar for kurone-kito
113. katopz
(Todsaporn Banjerdkit)		 1073 Avatar for katopz
114. miurahr
(Hiroshi Miura)		 1071 Avatar for miurahr
115. tsurugi3333
(Tsurugi)		 1055 Avatar for tsurugi3333
116. nakasyou
(Shotaro Nakamura)		 1044 Avatar for nakasyou
117. mattn
(mattn)		 1027 Avatar for mattn
118. miyaichi
(Yoshihiko Miyaichi)		 1020 Avatar for miyaichi
119. int128
(Hidetake Iwata)		 1017 Avatar for int128
120. Songmu
(Masayuki Matsuki)		 1016 Avatar for Songmu
121. neuecc
(Yoshifumi Kawai)		 1015 Avatar for neuecc
122. momeemt
(Mutsuha Asada)		 1012 Avatar for momeemt
123. ianlewis
(Ian Lewis)		 1009 Avatar for ianlewis
124. XiaomingX
(Y11)		 990 Avatar for XiaomingX
125. kaityo256
(Hiroshi Watanabe)		 979 Avatar for kaityo256
126. msakai
(Masahiro Sakai)		 978 Avatar for msakai
127. p-x9
()		 968 Avatar for p-x9
128. pilcrowonpaper
(pilcrow)		 959 Avatar for pilcrowonpaper
129. davetang
(Dave Tang)		 936 Avatar for davetang
130. akiomik
(Akiomi KAMAKURA)		 927 Avatar for akiomik
131. matz
(Yukihiro "Matz" Matsumoto)		 927 Avatar for matz
132. igrep
(YAMAMOTO Yuji)		 927 Avatar for igrep
133. PINTO0309
(Katsuya Hyodo)		 925 Avatar for PINTO0309
134. yusukebe
(Yusuke Wada)		 924 Avatar for yusukebe
135. noborus
(Noboru Saito)		 915 Avatar for noborus
136. NicolasDorier
(Nicolas Dorier)		 907 Avatar for NicolasDorier
137. baku89
(Baku 麦)		 901 Avatar for baku89
138. ubugeeei
(ubugeeei)		 894 Avatar for ubugeeei
139. aviatesk
(Shuhei Kadowaki)		 892 Avatar for aviatesk
140. takahashim
(Masayoshi Takahashi)		 892 Avatar for takahashim
141. Hiroshiba
(Hiroshiba)		 889 Avatar for Hiroshiba
142. dai-shi
(Daishi Kato)		 889 Avatar for dai-shi
143. champierre
(Junya Ishihara)		 887 Avatar for champierre
144. koheiw
(Kohei Watanabe)		 873 Avatar for koheiw
145. matanki-saito
((*`・∀・´*))		 866 Avatar for matanki-saito
146. qnighy
(Masaki Hara)		 859 Avatar for qnighy
147. kanru
(Kan-Ru Chen)		 856 Avatar for kanru
148. andrewmd5
(Andrew Sampson)		 848 Avatar for andrewmd5
149. osteele
(Oliver Steele)		 841 Avatar for osteele
150. ota-meshi
(Yosuke Ota)		 837 Avatar for ota-meshi
151. philwo
(Philipp Wollermann)		 836 Avatar for philwo
152. koji
(koji)		 834 Avatar for koji
153. masarakki
(masarakki)		 819 Avatar for masarakki
154. privatenumber
(Hiroki Osame)		 809 Avatar for privatenumber
155. nagadomi
()		 802 Avatar for nagadomi
156. sugyan
(Yoshihiro Sugi)		 801 Avatar for sugyan
157. neka-nat
(Shirokuma (k tanaka))		 798 Avatar for neka-nat
158. dev-yakuza
(DeKu)		 794 Avatar for dev-yakuza
159. inokawa
()		 787 Avatar for inokawa
160. viasnake
(snake)		 778 Avatar for viasnake
161. zchee
(Koichi Shiraishi)		 775 Avatar for zchee
162. znz
(Kazuhiro NISHIYAMA)		 768 Avatar for znz
163. liquidz
(Iizuka Masashi)		 766 Avatar for liquidz
164. lhl
(Leonard)		 762 Avatar for lhl
165. cxxxr
(cxxxr)		 760 Avatar for cxxxr
166. mob-sakai
(mob-sakai)		 758 Avatar for mob-sakai
167. melpon
(melpon)		 755 Avatar for melpon
168. nobuyuki83
(Nobuyuki Umetani)		 755 Avatar for nobuyuki83
169. babarot
(Masaki ISHIYAMA)		 754 Avatar for babarot
170. yowatanabe
(Yoshiyuki Watanabe)		 754 Avatar for yowatanabe
171. mayuki
(Mayuki Sawatari)		 754 Avatar for mayuki
172. youtalk
(Yutaka Kondo)		 753 Avatar for youtalk
173. Jxck
(Jxck)		 750 Avatar for Jxck
174. toshimaru
(Toshimaru)		 743 Avatar for toshimaru
175. nuta
(Seiya Nuta)		 742 Avatar for nuta
176. conao3
(Naoya Yamashita)		 739 Avatar for conao3
177. bluele
(Jun Kimura)		 735 Avatar for bluele
178. Quramy
(Yosuke Kurami)		 732 Avatar for Quramy
179. reindex-ot
(Re*Index. (ot_inc))		 721 Avatar for reindex-ot
180. mtshiba
(Shunsuke Shibayama)		 713 Avatar for mtshiba
181. amatsuda
(Akira Matsuda)		 713 Avatar for amatsuda
182. rui314
(Rui Ueyama)		 708 Avatar for rui314
183. muukii
(Hiroshi Kimura)		 708 Avatar for muukii
184. wasabeef
(Daichi Furiya)		 707 Avatar for wasabeef
185. uzulla
(uzulla / Junichi Ishida)		 707 Avatar for uzulla
186. hoothin
()		 706 Avatar for hoothin
187. ninoseki
(Manabu Niseki)		 697 Avatar for ninoseki
188. asukaminato0721
(Asuka Minato)		 696 Avatar for asukaminato0721
189. Cloudef
(Jari Vetoniemi)		 695 Avatar for Cloudef
190. hrsh7th
(hrsh7th)		 694 Avatar for hrsh7th
191. komagata
(Masaki Komagata)		 693 Avatar for komagata
192. s1204IT
(Syuugo)		 689 Avatar for s1204IT
193. ykob
(Yoichi Kobayashi)		 687 Avatar for ykob
194. neet
(Ryō Igarashi (五十嵐 涼))		 682 Avatar for neet
195. saki4510t
(saki)		 675 Avatar for saki4510t
196. sorah
(Sorah Fukumori)		 672 Avatar for sorah
197. e-jigsaw
(jigsaw)		 669 Avatar for e-jigsaw
198. fumiyasac
(Fumiya Sakai)		 667 Avatar for fumiyasac
199. sksat
(sksat)		 666 Avatar for sksat
200. hadashiA
(hadashiA)		 666 Avatar for hadashiA
201. yannklein
(Yann Klein)		 665 Avatar for yannklein
202. shogo4405
(shogo4405)		 660 Avatar for shogo4405
203. akinomyoga
(Koichi Murase)		 658 Avatar for akinomyoga
204. craftzdog
(Takuya Matsuyama)		 655 Avatar for craftzdog
205. domenic
(Domenic Denicola)		 647 Avatar for domenic
206. GOROman
(GOROman)		 645 Avatar for GOROman
207. drasticactions
(Tim Miller)		 639 Avatar for drasticactions
208. shakuzen
(Tommy Ludwig)		 632 Avatar for shakuzen
209. BcRikko
(B.C.Rikko)		 632 Avatar for BcRikko
210. mattatz
(Masatatsu Nakamura)		 632 Avatar for mattatz
211. dvcrn
(David)		 613 Avatar for dvcrn
212. koide3
()		 613 Avatar for koide3
213. koron
(MURAOKA Taro)		 609 Avatar for koron
214. planetchili
(chili)		 607 Avatar for planetchili
215. uezo
(uezo)		 606 Avatar for uezo
216. martinheidegger
(Martin Heidegger)		 596 Avatar for martinheidegger
217. giginet
(Kohki Miki)		 584 Avatar for giginet
218. taichi-ishitani
(Taichi Ishitani)		 582 Avatar for taichi-ishitani
219. yhatt
(Yuki Hattori)		 578 Avatar for yhatt
220. ryohey
(ryohey)		 572 Avatar for ryohey
221. sobri909
(Matt Greenfield)		 563 Avatar for sobri909
222. Reputeless
(Ryo Suzuki)		 563 Avatar for Reputeless
223. sotayamashita
(Sam Yamashita)		 562 Avatar for sotayamashita
224. seratch
(Kazuhiro Sera)		 561 Avatar for seratch
225. lovyan03
(lovyan03)		 558 Avatar for lovyan03
226. shimodateakira
(Akira Shimodate)		 556 Avatar for shimodateakira
227. kmizu
(Kota Mizushima)		 551 Avatar for kmizu
228. cordx56
(Yuki Okamoto)		 550 Avatar for cordx56
229. SoraSuegami
(Sora Suegami)		 543 Avatar for SoraSuegami
230. yude
(yude)		 542 Avatar for yude
231. itchyny
(itchyny)		 539 Avatar for itchyny
232. Watson1978
(Shizuo Fujita)		 536 Avatar for Watson1978
233. shirakaba
(Jamie Birch)		 534 Avatar for shirakaba
234. mesqueeb
(Luca Ban)		 533 Avatar for mesqueeb
235. b123400
(b123400)		 533 Avatar for b123400
236. yokolet
(Yoko Harada)		 529 Avatar for yokolet
237. shaoanlu
()		 528 Avatar for shaoanlu
238. jamesdbrock
(James Brock)		 527 Avatar for jamesdbrock
239. koute
(Koute)		 527 Avatar for koute
240. lepture
(Hsiaoming Yang)		 527 Avatar for lepture
241. faithandbrave
(Akira Takahashi)		 526 Avatar for faithandbrave
242. RINEARN
(RINEARN)		 523 Avatar for RINEARN
243. SakiTakamachi
(Saki Takamachi)		 515 Avatar for SakiTakamachi
244. 1amageek
(1amageek)		 514 Avatar for 1amageek
245. Koras02
(kobiad_ros)		 511 Avatar for Koras02
246. termoshtt
(Toshiki Teramura)		 510 Avatar for termoshtt
247. dark-flames
(dark-flames)		 509 Avatar for dark-flames
248. kazuho
(Kazuho Oku)		 508 Avatar for kazuho
249. franciscop
(Francisco Presencia)		 507 Avatar for franciscop
250. udzura
(Kondo Uchio)		 506 Avatar for udzura
251. rmackay9
(Randy Mackay)		 504 Avatar for rmackay9
252. otiai10
(Hiromu OCHIAI)		 501 Avatar for otiai10
253. CaseyNelson314
(Okawa Yusuke)		 501 Avatar for CaseyNelson314
254. hiroppy
(Yuta Hiroto)		 501 Avatar for hiroppy
255. lacolaco
(Suguru Inatomi)		 499 Avatar for lacolaco
256. skanehira
(skanehira)		 498 Avatar for skanehira

Organizations

Rank Organization Members
1. ruby 8
2. vim-jp 7
3. oss-gate 5
4. cpprefjp 5
5. railsgirls 4
6. groonga 4
7. ruby-no-kai 4
8. hiki 4
9. railsgirls-jp 4
10. scalajp 4