.fst
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.
408.0K
total files
116.6K
first seen 2021–2025 (28.6%)
2018
median year (half its files since)
Case variants in archive: .fst (407.0K), .FST (983), .Fst (6) — aggregated above.
Attribution status
This extension is attributed to F-star; fstar as primary by 3 authoritative claims.
Claimants (4)
Languages that list
.fst among their extensions. Strength reflects whether the upstream source treated it as their primary extension.| Language | Source | Strength |
|---|---|---|
| F-star | linguist | primary |
| F-star | pygments | primary |
| fstar | pygments | primary |
| F-star | wikipedia | proposed |
Wikidata says… (5)
File formats, image formats, audio codecs and other non-PL
entities that claim
.fst 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 |
|---|---|---|---|---|---|
| FASA Interactive game data archive Q105855177 file format | file format | — | application/octet-stream | — | Use as new PL ↗ |
| FAST input Q105855502 file format | file format | — | — | — | Use as new PL ↗ |
| FL Studio Track Q105855473 file format | file format | — | application/octet-stream | — | Use as new PL ↗ |
SWH-mined examples (0)
No archived examples for .fst in our local mirror yet.