.cfm
2 claimants
1 primary
0 secondary
unambiguous primary
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.
619.7K
total occurrences
58.0K
since 2019 (9.4%)
2000–2023
years active
Case variants in archive: .cfm (619.5K), .CFM (225), .CFm (3), .Cfm (1) — aggregated above.
Attribution status
This extension is attributed to ColdFusion; ColdFusion as primary by 2 authoritative claims.
Claimants (3)
Languages that list
.cfm among their extensions. Strength reflects whether the upstream source treated it as their primary extension.| Language | Source | Strength |
|---|---|---|
| ColdFusion | linguist | primary |
| ColdFusion | pygments | primary |
| CFML | wikipedia | proposed |
Wikidata says… (3)
File formats, image formats, audio codecs and other non-PL
entities that claim
.cfm 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 |
|---|---|---|---|---|---|
| ColdFusion Markup Language format Q110501909 file format | file format | — | application/x-coldfusion | — | Use as new PL ↗ |
| ColdFusion Template Q105850294 file format | file format | — | — | — | Use as new PL ↗ |
| Color Font Maker pattern (v1) Q105850618 file format | file format | — | application/octet-stream | — | Use as new PL ↗ |
SWH-mined examples (0)
No archived examples for .cfm in our local mirror yet.