.frt
3 claimants
3 primary
0 secondary
shared primary (3)
SWH popularity
From the SWH-MSR-ARV dataset (Desmazières, Di Cosmo, Lorentz, MSR 2025; file nb_extensions_alphanum.csv) — one row per (ext, year) in the full SWH archive. Case-aggregated. citation.
30.3K
total occurrences
8.7K
since 2019 (28.9%)
2000–2023
years active
Case variants in archive: .FRT (19.5K), .frt (10.8K), .Frt (44), .frT (1) — aggregated above.
Attribution status
This extension is attributed to Filterscript; Forth; Forth (programming language) as primary by 3 authoritative claims.
Authoritative sources: △ Linguist · secondary ✓ Pygments ✗ Wikidata · no claim ✗ Wikipedia · no claim
Claimants (4)
Languages that list
.frt among their extensions. Strength reflects whether the upstream source treated it as their primary extension.| Language | Source | Strength |
|---|---|---|
| Filterscript | pygments | primary |
| Forth | pygments | primary |
| Forth (programming language) | pygments | primary |
| Forth | linguist | secondary |
Wikidata says… (1)
File formats, image formats, audio codecs and other non-PL
entities that claim
.frt 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 |
|---|---|---|---|---|---|
| FoxPro Memo file format Q47012412 file format | file format | — | — | — | Use as new PL ↗ |
SWH-mined examples (0)
No archived examples for .frt in our local mirror yet.