.pem
3 claimants
1 primary
2 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.
3.2M
total occurrences
468.2K
since 2019 (14.6%)
1970–2023
years active
Case variants in archive: .pem (3.2M), .PEM (817), .pEm (4), .Pem (2) — aggregated above.
Attribution status
This extension is attributed to AGS Script as primary by 1 authoritative claim.
Authoritative sources: ✗ Linguist · no claim △ Pygments · secondary ✓ Wikidata · Q1840684 ✗ Wikipedia · no claim
Claimants (4)
Languages that list
.pem among their extensions. Strength reflects whether the upstream source treated it as their primary extension.| Language | Source | Strength |
|---|---|---|
| AGS Script | wikidata | primary |
| AGS Script | pygments | secondary |
| AsciiDoc | pygments | secondary |
| Public Key | pygments | secondary |
Wikidata says… (5)
File formats, image formats, audio codecs and other non-PL
entities that claim
.pem 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 |
|---|---|---|---|---|---|
| Privacy-enhanced Electronic Mail Q1840684 family of file formats associated with RFC 1421 | file format | — | application/x-pem-file | — | Use as new PL ↗ |
| PEM encoded certificate Q29650342 file format | file format | — | — | — | Use as new PL ↗ |
| PEM encoded RSA private key Q29650343 file format | file format | — | — | — | Use as new PL ↗ |
SWH-mined examples (0)
No archived examples for .pem in our local mirror yet.