.f90
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.
6.9M
total files
2.2M
first seen 2021–2025 (31.6%)
2018
median year (half its files since)
Case variants in archive: .f90 (4.3M), .F90 (2.5M) — aggregated above.
Attribution status
This extension is attributed to fortran; Fortran Free Form as primary by 2 authoritative claims.
Claimants (4)
Languages that list
.f90 among their extensions. Strength reflects whether the upstream source treated it as their primary extension.| Language | Source | Strength |
|---|---|---|
| fortran | wikidata | primary |
| Fortran Free Form | linguist | primary |
| fortran | pygments | secondary |
| Fortran Free Form | pygments | secondary |
Wikidata says… (2)
File formats, image formats, audio codecs and other non-PL
entities that claim
.f90 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 |
|---|---|---|---|---|---|
| Fortran 90 Q20754790 1990 edition of the Fortran programming language standard | ISO standard edition | — | — | — | Use as new PL ↗ |
| Free-format Fortran 90 source Q111721061 file format | file format | — | — | — | Use as new PL ↗ |
SWH-mined examples (0)
No archived examples for .f90 in our local mirror yet.