.org
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.
4.2M
total files
2.1M
first seen 2021–2025 (50.1%)
2021
median year (half its files since)
Case variants in archive: .org (4.2M), .ORG (2.8K), .Org (117), .ORg (1), .OrG (1) — aggregated above.
Attribution status
This extension is attributed to Org as primary by 2 authoritative claims.
Claimants (2)
Languages that list
.org among their extensions. Strength reflects whether the upstream source treated it as their primary extension.| Language | Source | Strength |
|---|---|---|
| Org | linguist | primary |
| Org | pygments | primary |
Wikidata says… (5)
File formats, image formats, audio codecs and other non-PL
entities that claim
.org 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 |
|---|---|---|---|---|---|
| Creative Music System Intelligent Organ music Q105862532 file format | file format | — | application/octet-stream | — | Use as new PL ↗ |
| Lotus Organizer Q66662128 file format | file format | — | — | — | Use as new PL ↗ |
| Org file Q130405004 lightweight markup language used by Org-mode | file format; lightweight markup language | — | text/org | — | Use as new PL ↗ |
SWH-mined examples (0)
No archived examples for .org in our local mirror yet.