.ein
1 claimant
1 primary
0 secondary
unambiguous primary
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.
772
total files
350
first seen 2021–2025 (45.3%)
2020
median year (half its files since)
Case variants in archive: .ein (704), .EIN (42), .EIn (25), .Ein (1) — aggregated above.
Attribution status
This extension is attributed to Fjolnir as primary by 1 authoritative claim.
Authoritative sources: ✗ Linguist · no claim ✗ Pygments · no claim ✓ Wikidata · Q3481158 ✗ Wikipedia · no claim
Claimants (1)
Languages that list
.ein among their extensions. Strength reflects whether the upstream source treated it as their primary extension.| Language | Source | Strength |
|---|---|---|
| Fjolnir | wikidata | primary |
SWH-mined examples (0)
No archived examples for .ein in our local mirror yet.