Country rankings
Top GitHub contributors in Japan.
Movement compares each contributor’s current rank with their previous OSSRank measurement when a prior snapshot exists. Click the column buttons to sort by public PRs, repos, or followers instead.
20 contributors41137 candidates checkedWeekly refreshLatest 2026-09-10
| Rank | Movement | Username | Location | Discovery | ||||
|---|---|---|---|---|---|---|---|---|
| #1 | New | Kotaro Chikuba | 18,629 | 3,162 | 673 | 1,842 | Tokyo/Japanmulti-location | location:Japan repos:>5 type:user |
| #2 | New | Tokuhiro Matsuno | 17,754 | 9,402 | 999 | 1,039 | Tokyo, Japanmulti-location | location:Japan repos:>5 type:user |
| #3 | New | Takayama Fumihiko | 9,058 | 72 | 40 | 1,078 | Japanexact-country | location:Japan repos:>5 type:user |
| #4 | New | Yuji Ueki | 9,035 | 644 | 65 | 3,686 | Tokyo, Japanmulti-location | location:Japan repos:>5 type:user |
| #5 | New | Yukihiro "Matz" Matsumoto | 8,315 | 27 | 19 | 10,673 | Matsue, Japanmulti-location | location:Japan repos:>5 type:user |
| #6 | New | Koichi Sasada | 7,752 | 179 | 124 | 1,223 | Tokyo, Japanmulti-location | location:Japan repos:>5 type:user |
| #7 | New | manman4 | 7,493 | 39 | 39 | 5,255 | Japanexact-country | location:Japan repos:>5 type:user |
| #8 | New | Hiroshi SHIBATA | 7,319 | 1,175 | 328 | 1,663 | Tokyo, Japanmulti-location | location:Japan repos:>5 type:user |
| #9 | New | mattn | 5,813 | 1,533 | 2,301 | 13,489 | Osaka, Japanmulti-location | location:Japan repos:>5 type:user |
| #10 | New | Yusuke Kuoka | 5,751 | 132 | 338 | 1,255 | Kagawa, Japanmulti-location | location:Japan repos:>5 type:user |
| #11 | New | azu | 4,947 | 449 | 1,551 | 2,862 | Tokyo/Japanmulti-location | location:Japan repos:>5 type:user |
| #12 | New | Katsuya Hyodo | 4,585 | 231 | 462 | 2,261 | Nagoya, Japanmulti-location | location:Japan repos:>5 type:user |
| #13 | New | FUJI Goro | 3,791 | 2,063 | 505 | 1,037 | Tokyo, Japanmulti-location | location:Japan repos:>5 type:user |
| #14 | New | Akira Matsuda | 3,710 | 335 | 249 | 2,975 | Tokyo, Japanmulti-location | location:Japan repos:>5 type:user |
| #15 | New | kazuya kawaguchi | 3,441 | 511 | 377 | 4,352 | Tokyo, Japanmulti-location | location:Japan repos:>5 type:user |
| #16 | New | 翠 | 3,073 | 1,465 | 245 | 1,503 | Japanexact-country | location:Japan repos:>5 type:user |
| #17 | New | Hajime Hoshi | 2,768 | 43 | 182 | 2,500 | Tokyo, Japanmulti-location | location:Japan repos:>5 type:user |
| #18 | New | Jianqi Pan | 2,659 | 21 | 255 | 1,917 | Japan, Tokyo ⇄ China, Shanghaimulti-location | location:Japan repos:>5 type:user |
| #19 | New | Keijiro Takahashi | 2,614 | 8 | 950 | 23,867 | Japanexact-country | location:Japan repos:>5 type:user |
| #20 | New | Wei Wang | 2,255 | 795 | 266 | 15,874 | Yokohama, Japan / Chinamulti-location | location:Japan repos:>5 type:user |
Commit and PR counts are one-year public contribution totals from the official GitHub GraphQL API. When a contributor has an isolated per-user burst that exceeds their adaptive baseline cap, the table ranks on the adjusted commit signal while showing the raw total for audit. Repo and follower counts come from public GitHub profile metadata. Country matching uses free-text GitHub profile location and is not verified geography.
Discovery queries
location:Japan repos:>5 type:user— 100 accepted from 41,137 GitHub matches