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`.i3`

1 claimant 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.

16.9K

total occurrences

1.8K

since 2019 (10.8%)

1970–2023

years active

Case variants in archive: .i3 (16.7K), .I3 (159) — aggregated above.

Attribution status

This extension is attributed to Modula-3 as primary by 1 authoritative claim.

Authoritative sources: ✓ Linguist ✗ Pygments · no claim ✗ Wikidata · no claim ✗ Wikipedia · no claim

Disagree or have a correction? Open a labelling issue.

Claimants (1)

Languages that list .i3 among their extensions. Strength reflects whether the upstream source treated it as their primary extension.

Language	Source	Strength
Modula-3	linguist	primary

SWH-mined examples (2)

Real archived programs with this extension, byte-verified against the SWH archive. Useful for deciding what this extension actually is when the attribution is uncertain.

TextVBTClass.i3 · 809 B · seen 2× in SWH

predicted: Modula-3 via unique-primary

swh:1:cnt:cfce8a258d9943c87af3e0bb2bcab3952736b86b;origin=https://github.com/modula3/cm3;anchor=swh:1:rev:f0e4a5be0778e2e80dd8e2d852ada0bac641abdd;path=/m3-ui/ui/src/split/TextVBTClass.i3

Open in SWH · Raw bytes

Example.i3 · 267 B · seen 2× in SWH

predicted: Modula-3 via unique-primary

swh:1:cnt:607ba5fc5935069ffcab786da81e82a996fdddc9;origin=https://github.com/OS2World/DEV-SAMPLES-Modula;anchor=swh:1:rev:9f5ce4615c046514bcd2013dbda21e20f9c3a475;path=/test/m3/test/anetobj/server/src/Example.i3

Open in SWH · Raw bytes