.rb
2 claimants
2 primary
0 secondary
shared primary (2)
SWH popularity
Distinct files in the full Software Heritage archive (2026-06-04 export), dated by first appearance, following Desmazières, Di Cosmo, Lorentz (MSR 2025). Case-aggregated. citation.
149.6M
total files
31.3M
first seen 2021–2025 (20.9%)
2017
median year (half its files since)
Case variants in archive: .rb (149.6M), .RB (2.1K), .Rb (90) — aggregated above.
Attribution status
This extension is attributed to Mirah; Ruby as primary by 4 authoritative claims.
Claimants (4)
Languages that list
.rb among their extensions. Strength reflects whether the upstream source treated it as their primary extension.| Language | Source | Strength |
|---|---|---|
| Mirah | pygments | primary |
| Ruby | linguist | primary |
| Ruby | pygments | primary |
| Ruby | wikidata | primary |
Wikidata says… (3)
File formats, image formats, audio codecs and other non-PL
entities that claim
.rb on Wikidata
(property P1195) or in the Wikipedia infobox.
Source: data/derived/external_extension_index.csv.
Click Use as new PL on any row to open the
Add-PL form pre-filled with that entry's name, Wikipedia/Wikidata
URL, and this extension — one submission creates the PL + claim.
| Format | Class (Wikidata P31) | Suggested label | MIME | Notes | Action |
|---|---|---|---|---|---|
| Rocket Book eBook format Q49988510 file format | file format | — | application/octet-stream | — | Use as new PL ↗ |
| Rocket eBook (variant) Q105860142 file format | file format | — | application/octet-stream | — | Use as new PL ↗ |
| Ruby source code Q111440765 file format | file format | — | application/x-ruby; text/x-ruby | — | Use as new PL ↗ |
SWH-mined examples (0)
No archived examples for .rb in our local mirror yet.