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 2025-08-06 12:18:30 +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 123269 total users in the region and you need at least 165 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
(Man)		 7751 Avatar for manman4
2. azu
(azu)		 5673 Avatar for azu
3. bobbens
(Edgar Simo-Serra)		 5460 Avatar for bobbens
4. guitarrapc
(Ikiru Yoshizaki)		 5418 Avatar for guitarrapc
5. taiki-e
(Taiki Endo)		 5191 Avatar for taiki-e
6. suzuki-shunsuke
(Shunsuke Suzuki)		 4906 Avatar for suzuki-shunsuke
7. yuiseki
(yuiseki)		 4806 Avatar for yuiseki
8. sile
(Takeru Ohta)		 4779 Avatar for sile
9. yuki-kimoto
(Yuki Kimoto)		 4628 Avatar for yuki-kimoto
10. j5ik2o
(Junichi Kato)		 4314 Avatar for j5ik2o
11. Muramatsuu
(Matsu)		 3841 Avatar for Muramatsuu
12. yasulab
(Yohei Yasukawa)		 3831 Avatar for yasulab
13. hakatashi
(Koki Takahashi)		 3668 Avatar for hakatashi
14. toastkidjp
(Toast kid)		 3638 Avatar for toastkidjp
15. shogo82148
(ICHINOSE Shogo)		 3480 Avatar for shogo82148
16. peppy
(Dean Herbert)		 3472 Avatar for peppy
17. hsbt
(Hiroshi SHIBATA)		 3470 Avatar for hsbt
18. ryota-murakami
(Ryota Murakami)		 3439 Avatar for ryota-murakami
19. yanorei32
(Ray Yano | あねてあ)		 3403 Avatar for yanorei32
20. koriym
(Akihito Koriyama)		 3294 Avatar for koriym
21. sue445
(Go Sueyoshi)		 3249 Avatar for sue445
22. miyako
(Keisuke Miyako)		 3121 Avatar for miyako
23. bannzai
(bannzai)		 3068 Avatar for bannzai
24. YumNumm
(Ryotaro Onoue)		 2970 Avatar for YumNumm
25. kentaro
(Kentaro Kuribayashi)		 2966 Avatar for kentaro
26. anatawa12
(anatawa12)		 2952 Avatar for anatawa12
27. xuwei-k
(kenji yoshida)		 2944 Avatar for xuwei-k
28. kou
(Sutou Kouhei)		 2867 Avatar for kou
29. k1LoW
(Ken’ichiro Oyama)		 2863 Avatar for k1LoW
30. tk0miya
(Takeshi KOMIYA)		 2858 Avatar for tk0miya
31. h3poteto
(AkiraFukushima)		 2843 Avatar for h3poteto
32. koxudaxi
(Koudai Aono)		 2632 Avatar for koxudaxi
33. ursm
(Keita Urashima)		 2516 Avatar for ursm
34. whitphx
(Yuichiro Tachibana (Tsuchiya))		 2511 Avatar for whitphx
35. takahirom
(Takahiro Menju)		 2493 Avatar for takahirom
36. hajimehoshi
(Hajime Hoshi)		 2447 Avatar for hajimehoshi
37. yuwata
(Yu Watanabe)		 2426 Avatar for yuwata
38. tekezo
(Takayama Fumihiko)		 2412 Avatar for tekezo
39. making
(Toshiaki Maki)		 2411 Avatar for making
40. terasakisatoshi
(Satoshi Terasaki)		 2389 Avatar for terasakisatoshi
41. tmori
(Takashi Mori)		 2289 Avatar for tmori
42. kishikawakatsumi
(Kishikawa Katsumi)		 2275 Avatar for kishikawakatsumi
43. AkihiroSuda
(Akihiro Suda)		 2251 Avatar for AkihiroSuda
44. kitao
(Takashi Kitao)		 2100 Avatar for kitao
45. Comamoca
(Comamoca)		 2053 Avatar for Comamoca
46. hakuturu583
(Masaya Kataoka)		 2043 Avatar for hakuturu583
47. halogenandtoast
(Matthew Mongeau)		 2039 Avatar for halogenandtoast
48. t4sk
()		 2005 Avatar for t4sk
49. sorairolake
(Shun Sakai)		 1955 Avatar for sorairolake
50. atztogo
(Atsushi Togo)		 1922 Avatar for atztogo
51. sapphi-red
(翠)		 1904 Avatar for sapphi-red
52. winebarrel
(Genki Sugawara)		 1902 Avatar for winebarrel
53. zcbenz
(Cheng)		 1880 Avatar for zcbenz
54. harupy
(Harutaka Kawamura)		 1868 Avatar for harupy
55. yamadashy
(Kazuki Yamada)		 1844 Avatar for yamadashy
56. tokuhirom
(Tokuhiro Matsuno)		 1835 Avatar for tokuhirom
57. keijiro
(Keijiro Takahashi)		 1783 Avatar for keijiro
58. norbusan
(Norbert Preining)		 1774 Avatar for norbusan
59. tkoyama010
(Tetsuo Koyama)		 1771 Avatar for tkoyama010
60. yutkat
(Yuta Katayama)		 1739 Avatar for yutkat
61. kazupon
(kazuya kawaguchi)		 1711 Avatar for kazupon
62. Jannchie
(Jianqi Pan)		 1670 Avatar for Jannchie
63. taisukef
(Taisuke Fukuno)		 1669 Avatar for taisukef
64. ncaq
()		 1662 Avatar for ncaq
65. tatsuhiro-t
(Tatsuhiro Tsujikawa)		 1640 Avatar for tatsuhiro-t
66. sevenc-nanashi
(Nanashi.)		 1605 Avatar for sevenc-nanashi
67. dalance
(Naoya Hatta)		 1604 Avatar for dalance
68. unhappychoice
(Yuji Ueki)		 1599 Avatar for unhappychoice
69. fumiya-kume
(kuu(Fumiya Kume))		 1597 Avatar for fumiya-kume
70. kateinoigakukun
(Yuta Saito)		 1585 Avatar for kateinoigakukun
71. Shougo
(Shougo)		 1562 Avatar for Shougo
72. HiroIshida
(Hirokazu Ishida)		 1557 Avatar for HiroIshida
73. hi-ogawa
(Hiroshi Ogawa)		 1556 Avatar for hi-ogawa
74. mayocream
(Mayo Takanashi)		 1537 Avatar for mayocream
75. hatoo
()		 1529 Avatar for hatoo
76. tatsuyafujisaki
(Tatsuya Fujisaki)		 1524 Avatar for tatsuyafujisaki
77. mizchi
(Kotaro Chikuba)		 1511 Avatar for mizchi
78. fa0311
(ふぁ)		 1484 Avatar for fa0311
79. yutannihilation
(Hiroaki Yutani)		 1481 Avatar for yutannihilation
80. kazu-yamamoto
(Kazu Yamamoto)		 1454 Avatar for kazu-yamamoto
81. siketyan
(Naoki Ikeguchi)		 1452 Avatar for siketyan
82. koic
(Koichi ITO)		 1449 Avatar for koic
83. coliff
(Christian Oliff)		 1417 Avatar for coliff
84. fygar256
(Taisuke Maekawa)		 1401 Avatar for fygar256
85. rigaya
(rigaya)		 1401 Avatar for rigaya
86. jsakamoto
()		 1396 Avatar for jsakamoto
87. gkjohnson
(Garrett Johnson)		 1388 Avatar for gkjohnson
88. ianlewis
(Ian Lewis)		 1379 Avatar for ianlewis
89. soutaro
(Soutaro Matsumoto)		 1374 Avatar for soutaro
90. haya14busa
(haya14busa)		 1367 Avatar for haya14busa
91. 1024jp
(1024jp)		 1365 Avatar for 1024jp
92. nuskey8
(Yusuke Nakada)		 1356 Avatar for nuskey8
93. cpojer
(Christoph Nakazawa)		 1353 Avatar for cpojer
94. smoogipoo
(Dan Balasescu)		 1333 Avatar for smoogipoo
95. kt3k
(Yoshiya Hinosawa)		 1323 Avatar for kt3k
96. mashharuki
(Haruki Kondo)		 1311 Avatar for mashharuki
97. kbinani
(kbinani)		 1305 Avatar for kbinani
98. fosskers
(Colin Woodbury)		 1289 Avatar for fosskers
99. konn
(Hiromi Ishii)		 1273 Avatar for konn
100. Saul-Mirone
(Mirone)		 1271 Avatar for Saul-Mirone
101. nobu
(Nobuyoshi Nakada)		 1260 Avatar for nobu
102. MagicalTux
(Mark Karpelès)		 1257 Avatar for MagicalTux
103. SunsetMkt
(Sunset Mikoto)		 1250 Avatar for SunsetMkt
104. nopnop2002
()		 1248 Avatar for nopnop2002
105. fujiwara
(FUJIWARA Shunichiro)		 1244 Avatar for fujiwara
106. shimbaco
(Shimba, Koji)		 1214 Avatar for shimbaco
107. atsushieno
(Atsushi Eno)		 1209 Avatar for atsushieno
108. Avimitin
(Jiongjia Lu)		 1204 Avatar for Avimitin
109. rui314
(Rui Ueyama)		 1194 Avatar for rui314
110. rhysd
(Linda_pp)		 1179 Avatar for rhysd
111. Songmu
(Masayuki Matsuki)		 1168 Avatar for Songmu
112. piroor
(YUKI "Piro" Hiroshi)		 1159 Avatar for piroor
113. miurahr
(Hiroshi Miura)		 1153 Avatar for miurahr
114. smorimoto
(Sora Morimoto)		 1147 Avatar for smorimoto
115. syohex
(Shohei YOSHIDA)		 1143 Avatar for syohex
116. lambdalisue
(Λlisue)		 1140 Avatar for lambdalisue
117. marttp
(Thanaphoom Babparn)		 1102 Avatar for marttp
118. jmettraux
(John Mettraux)		 1079 Avatar for jmettraux
119. katopz
(Todsaporn Banjerdkit)		 1071 Avatar for katopz
120. EdamAme-x
(EdamAmex)		 1064 Avatar for EdamAme-x
121. kurone-kito
(Kuroné Kito (黒音キト))		 1062 Avatar for kurone-kito
122. Hiroshiba
(Hiroshiba)		 1048 Avatar for Hiroshiba
123. shogo4405
(shogo4405)		 1017 Avatar for shogo4405
124. XiaomingX
(Y11)		 998 Avatar for XiaomingX
125. tsurugi3333
(Tsurugi)		 993 Avatar for tsurugi3333
126. momeemt
(Mutsuha Asada)		 987 Avatar for momeemt
127. kaityo256
(Hiroshi Watanabe)		 986 Avatar for kaityo256
128. davetang
(Dave Tang)		 984 Avatar for davetang
129. aviatesk
(Shuhei Kadowaki)		 981 Avatar for aviatesk
130. takahashim
(Masayoshi Takahashi)		 981 Avatar for takahashim
131. int128
(Hidetake Iwata)		 972 Avatar for int128
132. neuecc
(Yoshifumi Kawai)		 966 Avatar for neuecc
133. akiomik
(Akiomi KAMAKURA)		 963 Avatar for akiomik
134. champierre
(Junya Ishihara)		 957 Avatar for champierre
135. miyaichi
(Yoshihiko Miyaichi)		 957 Avatar for miyaichi
136. nakasyou
(Shotaro Nakamura)		 955 Avatar for nakasyou
137. matz
(Yukihiro "Matz" Matsumoto)		 931 Avatar for matz
138. p-x9
()		 930 Avatar for p-x9
139. yusukebe
(Yusuke Wada)		 926 Avatar for yusukebe
140. mattn
(mattn)		 925 Avatar for mattn
141. koji
(koji)		 924 Avatar for koji
142. dai-shi
(Daishi Kato)		 923 Avatar for dai-shi
143. osteele
(Oliver Steele)		 908 Avatar for osteele
144. zchee
(Koichi Shiraishi)		 908 Avatar for zchee
145. igrep
(YAMAMOTO Yuji)		 908 Avatar for igrep
146. ubugeeei
(ubugeeei)		 907 Avatar for ubugeeei
147. kanru
(Kan-Ru Chen)		 902 Avatar for kanru
148. NicolasDorier
(Nicolas Dorier)		 897 Avatar for NicolasDorier
149. PINTO0309
(Katsuya Hyodo)		 896 Avatar for PINTO0309
150. andrewmd5
(Andrew Sampson)		 889 Avatar for andrewmd5
151. noborus
(Noboru Saito)		 883 Avatar for noborus
152. msakai
(Masahiro Sakai)		 882 Avatar for msakai
153. sugyan
(Yoshihiro Sugi)		 881 Avatar for sugyan
154. kmaehashi
(Kenichi Maehashi)		 880 Avatar for kmaehashi
155. ota-meshi
(Yosuke Ota)		 879 Avatar for ota-meshi
156. yshrsmz
(Yasuhiro SHIMIZU)		 870 Avatar for yshrsmz
157. matanki-saito
((*`・∀・´*))		 867 Avatar for matanki-saito
158. baku89
(Baku 麦)		 864 Avatar for baku89
159. lhl
(Leonard)		 851 Avatar for lhl
160. philwo
(Philipp Wollermann)		 843 Avatar for philwo
161. qnighy
(Masaki Hara)		 830 Avatar for qnighy
162. pilcrowonpaper
(pilcrow)		 824 Avatar for pilcrowonpaper
163. inokawa
()		 822 Avatar for inokawa
164. melpon
(melpon)		 819 Avatar for melpon
165. neka-nat
(Shirokuma (k tanaka))		 815 Avatar for neka-nat
166. neet
(Ryō Igarashi (五十嵐 涼))		 814 Avatar for neet
167. privatenumber
(Hiroki Osame)		 809 Avatar for privatenumber
168. koheiw
(Kohei Watanabe)		 784 Avatar for koheiw
169. yowatanabe
(Yoshiyuki Watanabe)		 766 Avatar for yowatanabe
170. Jxck
(Jxck)		 765 Avatar for Jxck
171. znz
(Kazuhiro NISHIYAMA)		 764 Avatar for znz
172. nuta
(Seiya Nuta)		 762 Avatar for nuta
173. dev-yakuza
(DeKu)		 762 Avatar for dev-yakuza
174. mayuki
(Mayuki Sawatari)		 758 Avatar for mayuki
175. babarot
(Masaki ISHIYAMA)		 756 Avatar for babarot
176. mtshiba
(Shunsuke Shibayama)		 754 Avatar for mtshiba
177. hrsh7th
(hrsh7th)		 753 Avatar for hrsh7th
178. shakuzen
(Tommy Ludwig)		 751 Avatar for shakuzen
179. professorDeveloper
(Azamov X)		 749 Avatar for professorDeveloper
180. wasabeef
(Daichi Furiya)		 745 Avatar for wasabeef
181. nagadomi
()		 743 Avatar for nagadomi
182. asukaminato0721
(Asuka Minato)		 741 Avatar for asukaminato0721
183. nobuyuki83
(Nobuyuki Umetani)		 739 Avatar for nobuyuki83
184. komagata
(Masaki Komagata)		 739 Avatar for komagata
185. reindex-ot
(Re*Index. (ot_inc))		 734 Avatar for reindex-ot
186. s1204IT
(Syuugo)		 731 Avatar for s1204IT
187. toshimaru
(Toshimaru)		 731 Avatar for toshimaru
188. LumaKernel
(Luma)		 716 Avatar for LumaKernel
189. masarakki
(masarakki)		 709 Avatar for masarakki
190. liquidz
(Iizuka Masashi)		 708 Avatar for liquidz
191. uzulla
(uzulla / Junichi Ishida)		 707 Avatar for uzulla
192. akinomyoga
(Koichi Murase)		 707 Avatar for akinomyoga
193. koron
(MURAOKA Taro)		 703 Avatar for koron
194. bluele
(Jun Kimura)		 703 Avatar for bluele
195. dvcrn
(David)		 693 Avatar for dvcrn
196. muukii
(Hiroshi Kimura)		 692 Avatar for muukii
197. Quramy
(Yosuke Kurami)		 690 Avatar for Quramy
198. amatsuda
(Akira Matsuda)		 687 Avatar for amatsuda
199. ykob
(Yoichi Kobayashi)		 685 Avatar for ykob
200. craftzdog
(Takuya Matsuyama)		 685 Avatar for craftzdog
201. takayukister
(Takayuki Miyoshi)		 679 Avatar for takayukister
202. sorah
(Sorah Fukumori)		 679 Avatar for sorah
203. conao3
(Naoya Yamashita)		 675 Avatar for conao3
204. martinheidegger
(Martin Heidegger)		 672 Avatar for martinheidegger
205. lepture
(Hsiaoming Yang)		 670 Avatar for lepture
206. hadashiA
(hadashiA)		 667 Avatar for hadashiA
207. e-jigsaw
(jigsaw)		 663 Avatar for e-jigsaw
208. youtalk
(Yutaka Kondo)		 660 Avatar for youtalk
209. mattatz
(Masatatsu Nakamura)		 660 Avatar for mattatz
210. domenic
(Domenic Denicola)		 655 Avatar for domenic
211. saki4510t
(saki)		 655 Avatar for saki4510t
212. cxxxr
(cxxxr)		 653 Avatar for cxxxr
213. fumiyasac
(Fumiya Sakai)		 649 Avatar for fumiyasac
214. ninoseki
(Manabu Niseki)		 649 Avatar for ninoseki
215. GOROman
(GOROman)		 645 Avatar for GOROman
216. mob-sakai
(mob-sakai)		 642 Avatar for mob-sakai
217. sotayamashita
(Sam Yamashita)		 632 Avatar for sotayamashita
218. uezo
(uezo)		 628 Avatar for uezo
219. drasticactions
(Tim Miller)		 628 Avatar for drasticactions
220. viasnake
(snake)		 625 Avatar for viasnake
221. taichi-ishitani
(Taichi Ishitani)		 621 Avatar for taichi-ishitani
222. ynqa
()		 620 Avatar for ynqa
223. Cloudef
(Jari Vetoniemi)		 617 Avatar for Cloudef
224. hoothin
()		 617 Avatar for hoothin
225. 1amageek
(1amageek)		 604 Avatar for 1amageek
226. yhatt
(Yuki Hattori)		 604 Avatar for yhatt
227. kmizu
(Kota Mizushima)		 602 Avatar for kmizu
228. Kazuhito00
(KazuhitoTakahashi)		 600 Avatar for Kazuhito00
229. lovyan03
(lovyan03)		 592 Avatar for lovyan03
230. shirakaba
(Jamie Birch)		 583 Avatar for shirakaba
231. seratch
(Kazuhiro Sera)		 569 Avatar for seratch
232. koudaiii
(Kodai Sakabe)		 569 Avatar for koudaiii
233. cordx56
(Yuki Okamoto)		 568 Avatar for cordx56
234. sksat
(sksat)		 566 Avatar for sksat
235. giginet
(Kohki Miki)		 562 Avatar for giginet
236. skanehira
(skanehira)		 561 Avatar for skanehira
237. rinsuki
(rinsuki)		 560 Avatar for rinsuki
238. yannklein
(Yann Klein)		 554 Avatar for yannklein
239. sobri909
(Matt Greenfield)		 553 Avatar for sobri909
240. Reputeless
(Ryo Suzuki)		 553 Avatar for Reputeless
241. planetchili
(chili)		 551 Avatar for planetchili
242. yude
(Takehiro Ogura)		 550 Avatar for yude
243. itchyny
(itchyny)		 544 Avatar for itchyny
244. ryohey
(ryohey)		 543 Avatar for ryohey
245. keichan34
(Keitaroh Kobayashi)		 540 Avatar for keichan34
246. yokolet
(Yoko Harada)		 540 Avatar for yokolet
247. Watson1978
(Shizuo Fujita)		 539 Avatar for Watson1978
248. Kamesuta
(Kamesuta)		 539 Avatar for Kamesuta
249. JasonkayZK
(Jasonkay)		 538 Avatar for JasonkayZK
250. kazuho
(Kazuho Oku)		 536 Avatar for kazuho
251. rmackay9
(Randy Mackay)		 535 Avatar for rmackay9
252. hiroppy
(Yuta Hiroto)		 533 Avatar for hiroppy
253. termoshtt
(Toshiki Teramura)		 533 Avatar for termoshtt
254. shaoanlu
()		 528 Avatar for shaoanlu
255. Koras02
(kobiad_ros)		 526 Avatar for Koras02
256. udzura
(Kondo Uchio)		 522 Avatar for udzura

Organizations

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