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 2025-06-02 12:19:18 +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 120734 total users in the region and you need at least 153 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. guitarrapc
(Ikiru Yoshizaki)		 5278 Avatar for guitarrapc
2. yuki-kimoto
(Yuki Kimoto)		 5251 Avatar for yuki-kimoto
3. azu
(azu)		 5210 Avatar for azu
4. taiki-e
(Taiki Endo)		 5196 Avatar for taiki-e
5. yuiseki
(yuiseki)		 5170 Avatar for yuiseki
6. j5ik2o
(Junichi Kato)		 5035 Avatar for j5ik2o
7. suzuki-shunsuke
(Shunsuke Suzuki)		 4942 Avatar for suzuki-shunsuke
8. shogo82148
(ICHINOSE Shogo)		 4440 Avatar for shogo82148
9. bobbens
(Edgar Simo-Serra)		 4325 Avatar for bobbens
10. sue445
(Go Sueyoshi)		 3922 Avatar for sue445
11. sile
(Takeru Ohta)		 3763 Avatar for sile
12. toastkidjp
(Toast kid)		 3609 Avatar for toastkidjp
13. yasulab
(Yohei Yasukawa)		 3590 Avatar for yasulab
14. peppy
(Dean Herbert)		 3507 Avatar for peppy
15. hakatashi
(Koki Takahashi)		 3385 Avatar for hakatashi
16. koriym
(Akihito Koriyama)		 3325 Avatar for koriym
17. hsbt
(Hiroshi SHIBATA)		 3276 Avatar for hsbt
18. ryota-murakami
(Ryota Murakami)		 3214 Avatar for ryota-murakami
19. YumNumm
(Ryotaro Onoue)		 3154 Avatar for YumNumm
20. anatawa12
(anatawa12)		 3102 Avatar for anatawa12
21. kentaro
(Kentaro Kuribayashi)		 3086 Avatar for kentaro
22. h3poteto
(AkiraFukushima)		 3000 Avatar for h3poteto
23. yanorei32
(Ray Yano | あねてあ)		 2970 Avatar for yanorei32
24. miyako
(Keisuke Miyako)		 2859 Avatar for miyako
25. kou
(Sutou Kouhei)		 2774 Avatar for kou
26. making
(Toshiaki Maki)		 2766 Avatar for making
27. tk0miya
(Takeshi KOMIYA)		 2666 Avatar for tk0miya
28. kishikawakatsumi
(Kishikawa Katsumi)		 2664 Avatar for kishikawakatsumi
29. k1LoW
(Ken’ichiro Oyama)		 2655 Avatar for k1LoW
30. ursm
(Keita Urashima)		 2645 Avatar for ursm
31. koxudaxi
(Koudai Aono)		 2560 Avatar for koxudaxi
32. xuwei-k
(kenji yoshida)		 2505 Avatar for xuwei-k
33. hajimehoshi
(Hajime Hoshi)		 2437 Avatar for hajimehoshi
34. takahirom
(Takahiro Menju)		 2419 Avatar for takahirom
35. AkihiroSuda
(Akihiro Suda)		 2294 Avatar for AkihiroSuda
36. tekezo
(Takayama Fumihiko)		 2275 Avatar for tekezo
37. katahiromz
(Katayama Hirofumi MZ)		 2252 Avatar for katahiromz
38. kitao
(Takashi Kitao)		 2229 Avatar for kitao
39. halogenandtoast
(Matthew Mongeau)		 2204 Avatar for halogenandtoast
40. sorairolake
(Shun Sakai)		 2174 Avatar for sorairolake
41. tmori
(Takashi Mori)		 2121 Avatar for tmori
42. hakuturu583
(Masaya Kataoka)		 2119 Avatar for hakuturu583
43. bannzai
(bannzai)		 2118 Avatar for bannzai
44. terasakisatoshi
(Satoshi Terasaki)		 2086 Avatar for terasakisatoshi
45. yuwata
(Yu Watanabe)		 2084 Avatar for yuwata
46. whitphx
(Yuichiro Tachibana (Tsuchiya))		 2044 Avatar for whitphx
47. Comamoca
(Comamoca)		 1997 Avatar for Comamoca
48. atztogo
(Atsushi Togo)		 1975 Avatar for atztogo
49. winebarrel
(Genki Sugawara)		 1953 Avatar for winebarrel
50. tkoyama010
(Tetsuo Koyama)		 1861 Avatar for tkoyama010
51. kateinoigakukun
(Yuta Saito)		 1823 Avatar for kateinoigakukun
52. yutkat
(Yuta Katayama)		 1816 Avatar for yutkat
53. zcbenz
(Cheng)		 1808 Avatar for zcbenz
54. tokuhirom
(Tokuhiro Matsuno)		 1793 Avatar for tokuhirom
55. Shougo
(Shougo)		 1768 Avatar for Shougo
56. hatoo
()		 1709 Avatar for hatoo
57. fa0311
(ふぁ)		 1703 Avatar for fa0311
58. harupy
(Harutaka Kawamura)		 1698 Avatar for harupy
59. kazupon
(kazuya kawaguchi)		 1687 Avatar for kazupon
60. keijiro
(Keijiro Takahashi)		 1674 Avatar for keijiro
61. norbusan
(Norbert Preining)		 1646 Avatar for norbusan
62. taisukef
(Taisuke Fukuno)		 1634 Avatar for taisukef
63. kt3k
(Yoshiya Hinosawa)		 1620 Avatar for kt3k
64. dalance
(Naoya Hatta)		 1605 Avatar for dalance
65. tatsuhiro-t
(Tatsuhiro Tsujikawa)		 1600 Avatar for tatsuhiro-t
66. sevenc-nanashi
(Nanashi.)		 1600 Avatar for sevenc-nanashi
67. yamadashy
(Kazuki Yamada)		 1585 Avatar for yamadashy
68. EdamAme-x
(EdamAmex)		 1579 Avatar for EdamAme-x
69. t4sk
()		 1559 Avatar for t4sk
70. tatsuyafujisaki
(Tatsuya Fujisaki)		 1553 Avatar for tatsuyafujisaki
71. HiroIshida
(Hirokazu Ishida)		 1544 Avatar for HiroIshida
72. konn
(Hiromi Ishii)		 1540 Avatar for konn
73. MagicalTux
(Mark Karpelès)		 1517 Avatar for MagicalTux
74. rigaya
(rigaya)		 1500 Avatar for rigaya
75. siketyan
(Naoki Ikeguchi)		 1496 Avatar for siketyan
76. Emon2358
(kjgd)		 1493 Avatar for Emon2358
77. fosskers
(Colin Woodbury)		 1490 Avatar for fosskers
78. gkjohnson
(Garrett Johnson)		 1486 Avatar for gkjohnson
79. hi-ogawa
(Hiroshi Ogawa)		 1483 Avatar for hi-ogawa
80. sapphi-red
(翠)		 1483 Avatar for sapphi-red
81. mayocream
(Mayo Takanashi)		 1481 Avatar for mayocream
82. kazu-yamamoto
(Kazu Yamamoto)		 1472 Avatar for kazu-yamamoto
83. nopnop2002
()		 1443 Avatar for nopnop2002
84. koic
(Koichi ITO)		 1416 Avatar for koic
85. jsakamoto
()		 1406 Avatar for jsakamoto
86. kbinani
(kbinani)		 1400 Avatar for kbinani
87. fujiwara
(FUJIWARA Shunichiro)		 1397 Avatar for fujiwara
88. 1024jp
(1024jp)		 1396 Avatar for 1024jp
89. mashharuki
(Haruki Kondo)		 1373 Avatar for mashharuki
90. soutaro
(Soutaro Matsumoto)		 1366 Avatar for soutaro
91. smoogipoo
(Dan Balasescu)		 1363 Avatar for smoogipoo
92. fumiya-kume
(kuu(Fumiya Kume))		 1334 Avatar for fumiya-kume
93. marttp
(Thanaphoom Babparn)		 1319 Avatar for marttp
94. Avimitin
(Jiongjia Lu)		 1313 Avatar for Avimitin
95. Saul-Mirone
(Mirone)		 1306 Avatar for Saul-Mirone
96. cpojer
(Christoph Nakazawa)		 1297 Avatar for cpojer
97. rhysd
(Linda_pp)		 1282 Avatar for rhysd
98. lambdalisue
(Λlisue)		 1268 Avatar for lambdalisue
99. yutannihilation
(Hiroaki Yutani)		 1265 Avatar for yutannihilation
100. haya14busa
(haya14busa)		 1258 Avatar for haya14busa
101. Jannchie
(Jianqi Pan)		 1249 Avatar for Jannchie
102. jmettraux
(John Mettraux)		 1211 Avatar for jmettraux
103. coliff
(Christian Oliff)		 1203 Avatar for coliff
104. ncaq
()		 1177 Avatar for ncaq
105. piroor
(YUKI "Piro" Hiroshi)		 1171 Avatar for piroor
106. syohex
(Shohei YOSHIDA)		 1167 Avatar for syohex
107. nuskey8
(Yusuke Nakada)		 1165 Avatar for nuskey8
108. shimbaco
(Shimba, Koji)		 1162 Avatar for shimbaco
109. mattn
(mattn)		 1160 Avatar for mattn
110. tsurugi3333
(Tsurugi)		 1146 Avatar for tsurugi3333
111. nakasyou
(Shotaro Nakamura)		 1130 Avatar for nakasyou
112. neuecc
(Yoshifumi Kawai)		 1113 Avatar for neuecc
113. pilcrowonpaper
(pilcrow)		 1108 Avatar for pilcrowonpaper
114. msakai
(Masahiro Sakai)		 1105 Avatar for msakai
115. nobuyuki83
(Nobuyuki Umetani)		 1090 Avatar for nobuyuki83
116. miyaichi
(Yoshihiko Miyaichi)		 1080 Avatar for miyaichi
117. hoothin
()		 1079 Avatar for hoothin
118. SunsetMkt
(Sunset Mikoto)		 1078 Avatar for SunsetMkt
119. Cloudef
(Jari Vetoniemi)		 1067 Avatar for Cloudef
120. katopz
(Todsaporn Banjerdkit)		 1062 Avatar for katopz
121. baku89
(Baku 麦)		 1057 Avatar for baku89
122. nobu
(Nobuyoshi Nakada)		 1056 Avatar for nobu
123. p-x9
()		 1051 Avatar for p-x9
124. unhappychoice
(Yuji Ueki)		 1038 Avatar for unhappychoice
125. kurone-kito
(Kuroné Kito (黒音キト))		 1011 Avatar for kurone-kito
126. myuon
(myuon)		 992 Avatar for myuon
127. miurahr
(Hiroshi Miura)		 988 Avatar for miurahr
128. akiomik
(Akiomi KAMAKURA)		 982 Avatar for akiomik
129. yusukebe
(Yusuke Wada)		 968 Avatar for yusukebe
130. atsushieno
(Atsushi Eno)		 966 Avatar for atsushieno
131. kaityo256
(Hiroshi Watanabe)		 966 Avatar for kaityo256
132. int128
(Hidetake Iwata)		 964 Avatar for int128
133. XiaomingX
(Y11)		 956 Avatar for XiaomingX
134. dai-shi
(Daishi Kato)		 945 Avatar for dai-shi
135. igrep
(YAMAMOTO Yuji)		 933 Avatar for igrep
136. noborus
(Noboru Saito)		 931 Avatar for noborus
137. uonr
(uonr)		 927 Avatar for uonr
138. davetang
(Dave Tang)		 923 Avatar for davetang
139. momeemt
(Mutsuha Asada)		 922 Avatar for momeemt
140. ubugeeei
(ubugeeei)		 918 Avatar for ubugeeei
141. champierre
(Junya Ishihara)		 909 Avatar for champierre
142. PINTO0309
(Katsuya Hyodo)		 900 Avatar for PINTO0309
143. masarakki
(masarakki)		 898 Avatar for masarakki
144. bluele
(Jun Kimura)		 887 Avatar for bluele
145. ota-meshi
(Yosuke Ota)		 886 Avatar for ota-meshi
146. Quramy
(Yosuke Kurami)		 880 Avatar for Quramy
147. koheiw
(Kohei Watanabe)		 880 Avatar for koheiw
148. qnighy
(Masaki Hara)		 873 Avatar for qnighy
149. matanki-saito
((*`・∀・´*))		 869 Avatar for matanki-saito
150. youtalk
(Yutaka Kondo)		 867 Avatar for youtalk
151. NicolasDorier
(Nicolas Dorier)		 866 Avatar for NicolasDorier
152. privatenumber
(Hiroki Osame)		 861 Avatar for privatenumber
153. kanru
(Kan-Ru Chen)		 858 Avatar for kanru
154. cxxxr
(cxxxr)		 856 Avatar for cxxxr
155. ianlewis
(Ian Lewis)		 853 Avatar for ianlewis
156. mayuki
(Mayuki Sawatari)		 851 Avatar for mayuki
157. takahashim
(Masayoshi Takahashi)		 845 Avatar for takahashim
158. osteele
(Oliver Steele)		 841 Avatar for osteele
159. philwo
(Philipp Wollermann)		 837 Avatar for philwo
160. Hiroshiba
(Hiroshiba)		 833 Avatar for Hiroshiba
161. viasnake
(snake)		 833 Avatar for viasnake
162. dev-yakuza
(DeKu)		 833 Avatar for dev-yakuza
163. znz
(Kazuhiro NISHIYAMA)		 828 Avatar for znz
164. kmaehashi
(Kenichi Maehashi)		 826 Avatar for kmaehashi
165. koji
(koji)		 804 Avatar for koji
166. melpon
(melpon)		 804 Avatar for melpon
167. toshimaru
(Toshimaru)		 803 Avatar for toshimaru
168. Songmu
(Masayuki Matsuki)		 802 Avatar for Songmu
169. matz
(Yukihiro "Matz" Matsumoto)		 800 Avatar for matz
170. Jxck
(Jxck)		 797 Avatar for Jxck
171. inokawa
()		 773 Avatar for inokawa
172. sksat
(sksat)		 769 Avatar for sksat
173. ab25cq
(ab25cq)		 768 Avatar for ab25cq
174. liquidz
(Iizuka Masashi)		 766 Avatar for liquidz
175. mob-sakai
(mob-sakai)		 762 Avatar for mob-sakai
176. Aoichaan0513
(Aoichaan0513)		 761 Avatar for Aoichaan0513
177. babarot
(Masaki ISHIYAMA)		 759 Avatar for babarot
178. professorDeveloper
(Azamov X)		 756 Avatar for professorDeveloper
179. shimodateakira
(Akira Shimodate)		 756 Avatar for shimodateakira
180. yowatanabe
(Yoshiyuki Watanabe)		 755 Avatar for yowatanabe
181. lhl
(Leonard)		 753 Avatar for lhl
182. ninoseki
(Manabu Niseki)		 748 Avatar for ninoseki
183. linyows
(Tomohisa Oda)		 741 Avatar for linyows
184. conao3
(Naoya Yamashita)		 736 Avatar for conao3
185. mtshiba
(Shunsuke Shibayama)		 734 Avatar for mtshiba
186. mesqueeb
(Luca Ban)		 726 Avatar for mesqueeb
187. amatsuda
(Akira Matsuda)		 720 Avatar for amatsuda
188. reindex-ot
(Re*Index. (ot_inc))		 708 Avatar for reindex-ot
189. uzulla
(uzulla / Junichi Ishida)		 707 Avatar for uzulla
190. shogo4405
(shogo4405)		 704 Avatar for shogo4405
191. s1204IT
(Syuugo)		 696 Avatar for s1204IT
192. nagadomi
()		 693 Avatar for nagadomi
193. fumiyasac
(Fumiya Sakai)		 692 Avatar for fumiyasac
194. e-jigsaw
(jigsaw)		 690 Avatar for e-jigsaw
195. rui314
(Rui Ueyama)		 687 Avatar for rui314
196. koide3
()		 684 Avatar for koide3
197. ykob
(Yoichi Kobayashi)		 678 Avatar for ykob
198. andrewmd5
(Andrew Sampson)		 672 Avatar for andrewmd5
199. akinomyoga
(Koichi Murase)		 672 Avatar for akinomyoga
200. sorah
(Sorah Fukumori)		 670 Avatar for sorah
201. drasticactions
(Tim Miller)		 669 Avatar for drasticactions
202. muukii
(Hiroshi Kimura)		 667 Avatar for muukii
203. aviatesk
(Shuhei Kadowaki)		 663 Avatar for aviatesk
204. yannklein
(Yann Klein)		 661 Avatar for yannklein
205. asukaminato0721
(Asuka Minato)		 660 Avatar for asukaminato0721
206. GOROman
(GOROman)		 648 Avatar for GOROman
207. uezo
(uezo)		 640 Avatar for uezo
208. taichi-ishitani
(Taichi Ishitani)		 639 Avatar for taichi-ishitani
209. craftzdog
(Takuya Matsuyama)		 637 Avatar for craftzdog
210. neet
(Ryō Igarashi (五十嵐 涼))		 636 Avatar for neet
211. takayukister
(Takayuki Miyoshi)		 631 Avatar for takayukister
212. hadashiA
(hadashiA)		 630 Avatar for hadashiA
213. ryohey
(ryohey)		 625 Avatar for ryohey
214. komagata
(Masaki Komagata)		 619 Avatar for komagata
215. kenjis
(kenjis)		 617 Avatar for kenjis
216. SoraSuegami
(Sora Suegami)		 605 Avatar for SoraSuegami
217. BcRikko
(B.C.Rikko)		 602 Avatar for BcRikko
218. martinheidegger
(Martin Heidegger)		 601 Avatar for martinheidegger
219. domenic
(Domenic Denicola)		 598 Avatar for domenic
220. nuta
(Seiya Nuta)		 589 Avatar for nuta
221. seratch
(Kazuhiro Sera)		 583 Avatar for seratch
222. planetchili
(chili)		 583 Avatar for planetchili
223. yug1224
(Yuji Yamaguchi)		 581 Avatar for yug1224
224. aiya000
(aiya000)		 576 Avatar for aiya000
225. jiro4989
(jiro)		 570 Avatar for jiro4989
226. giginet
(Kohki Miki)		 560 Avatar for giginet
227. jamesdbrock
(James Brock)		 560 Avatar for jamesdbrock
228. miurla
(Yoshiki Miura)		 558 Avatar for miurla
229. dvcrn
(David)		 557 Avatar for dvcrn
230. mattatz
(Masatatsu Nakamura)		 554 Avatar for mattatz
231. sugyan
(Yoshihiro Sugi)		 548 Avatar for sugyan
232. hrsh7th
(hrsh7th)		 541 Avatar for hrsh7th
233. yhatt
(Yuki Hattori)		 541 Avatar for yhatt
234. yanex
(Yan Zhulanow)		 541 Avatar for yanex
235. zchee
(Koichi Shiraishi)		 540 Avatar for zchee
236. yokolet
(Yoko Harada)		 537 Avatar for yokolet
237. franciscop
(Francisco Presencia)		 536 Avatar for franciscop
238. lovyan03
(lovyan03)		 535 Avatar for lovyan03
239. sobri909
(Matt Greenfield)		 534 Avatar for sobri909
240. cordx56
(Yuki Okamoto)		 532 Avatar for cordx56
241. shakuzen
(Tommy Ludwig)		 531 Avatar for shakuzen
242. keichan34
(Keitaroh Kobayashi)		 531 Avatar for keichan34
243. andrewplummer
(Andrew Plummer)		 531 Avatar for andrewplummer
244. neka-nat
(Shirokuma (k tanaka))		 531 Avatar for neka-nat
245. ran-sama
(Yakumo Ran)		 530 Avatar for ran-sama
246. mariotaku
(Mariotaku)		 530 Avatar for mariotaku
247. RINEARN
(RINEARN)		 527 Avatar for RINEARN
248. sotayamashita
(Sam Yamashita)		 527 Avatar for sotayamashita
249. CaseyNelson314
(Okawa Yusuke)		 524 Avatar for CaseyNelson314
250. b123400
(b123400)		 523 Avatar for b123400
251. Reputeless
(Ryo Suzuki)		 521 Avatar for Reputeless
252. saki4510t
(saki)		 518 Avatar for saki4510t
253. Watson1978
(Shizuo Fujita)		 517 Avatar for Watson1978
254. otiai10
(Hiromu OCHIAI)		 516 Avatar for otiai10
255. szkkng
(Kengo)		 515 Avatar for szkkng
256. uribo
(Shinya Uryu)		 514 Avatar for uribo

Organizations

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